{"id":1302,"date":"2026-09-02T03:48:19","date_gmt":"2026-09-02T03:48:19","guid":{"rendered":"https:\/\/onestepblowmachine.com\/?post_type=product&#038;p=1302"},"modified":"2026-09-02T03:48:19","modified_gmt":"2026-09-02T03:48:19","slug":"ep-hgs350a-20l-semi-automatic-blow-molding-machine","status":"publish","type":"product","link":"https:\/\/onestepblowmachine.com\/fa\/product\/ep-hgs350a-20l-semi-automatic-blow-molding-machine\/","title":{"rendered":"EP-HGS350A 20L Semi Automatic Blow Molding Machine"},"content":{"rendered":"<div style=\"width: 100%; max-width: 100%; min-width: 100%; font-family: Arial,sans-serif; color: #333; line-height: 1.7;\">\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: linear-gradient(135deg,#f0f4e8 0%,#e8f0f8 100%); border-left: 5px solid #5d4037; padding: 28px 24px; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; margin: 0 0 12px 0;\">EP-HGS350A 20L Semi Automatic Blow Molding Machine<\/h2>\n<p style=\"margin: 0 0 16px 0;\">When production calls for large-format containers, the EP-HGS350A stands as a heavy-duty <strong>semi automatic blow molding machine<\/strong> engineered specifically for the 20-liter segment. Built on the field-proven HGS platform, this machine applies a piston-type pneumatic hydraulic mold-locking system to deliver the clamping force and blow pressure stability required for thicker-walled, larger-volume containers. With a 550 mm stretching stroke \u2014 the longest in the HGS range \u2014 and a 580 \u00d7 390 mm pillar space that accommodates wide-diameter mold cavities, the HGS350A is purpose-built for the barrel, carboy, and bulk-container packaging applications that smaller <strong>semi automatic blowing machine<\/strong> models cannot reach. Industries served include drinking water, chemical distribution, industrial lubricants, and institutional cleaning products across global and Colombian markets.<\/p>\n<p><a style=\"display: inline-block; background: #5d4037; color: #fff; padding: 12px 28px; text-decoration: none; border-radius: 4px; font-weight: bold; margin-top: 8px;\" href=\"https:\/\/onestepblowmachine.com\/fa\/semi-automatic-blow-molding-machine\/\">\u00a0Semi Automatic Blow Molding Machine <\/a><\/p>\n<\/div>\n<p><!-- Key Specs Strip --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; display: flex; flex-wrap: wrap; gap: 0; margin-bottom: 28px; box-sizing: border-box;\">\n<div style=\"flex: 1 1 150px; background: #5d4037; color: #fff; text-align: center; padding: 18px 10px; box-sizing: border-box;\">\n<div style=\"font-weight: bold; margin-bottom: 4px;\">Bottle Capacity<\/div>\n<div>\u06f2\u06f0 \u0644\u06cc\u062a\u0631<\/div>\n<\/div>\n<div style=\"flex: 1 1 150px; background: #2c3e50; color: #fff; text-align: center; padding: 18px 10px; box-sizing: border-box;\">\n<div style=\"font-weight: bold; margin-bottom: 4px;\">Output<\/div>\n<div>150\u2013400 bph<\/div>\n<\/div>\n<div style=\"flex: 1 1 150px; background: #5d4037; color: #fff; text-align: center; padding: 18px 10px; box-sizing: border-box;\">\n<div style=\"font-weight: bold; margin-bottom: 4px;\">Machine Size<\/div>\n<div>2270\u00d7860\u00d71770 mm<\/div>\n<\/div>\n<div style=\"flex: 1 1 150px; background: #2c3e50; color: #fff; text-align: center; padding: 18px 10px; box-sizing: border-box;\">\n<div style=\"font-weight: bold; margin-bottom: 4px;\">\u0648\u0632\u0646<\/div>\n<div>1500 kg<\/div>\n<\/div>\n<div style=\"flex: 1 1 150px; background: #5d4037; color: #fff; text-align: center; padding: 18px 10px; box-sizing: border-box;\">\n<div style=\"font-weight: bold; margin-bottom: 4px;\">Power Supply<\/div>\n<div>220V \/ 50Hz<\/div>\n<\/div>\n<div style=\"flex: 1 1 150px; background: #2c3e50; color: #fff; text-align: center; padding: 18px 10px; box-sizing: border-box;\">\n<div style=\"font-weight: bold; margin-bottom: 4px;\">Blowing Pressure<\/div>\n<div>3.0 MPA<\/div>\n<\/div>\n<\/div>\n<p><!-- Technical Parameters Table --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; border-bottom: 2px solid #5d4037; padding-bottom: 8px;\">Technical Specifications \u2014 EP-HGS350A Semi Automatic Blow Molding Machine<\/h2>\n<p style=\"margin-bottom: 14px;\">The parameters below are extracted from the HGS-350A(20L) specification and represent the verified operational envelope of the machine. Among the key figures to note: the 580 \u00d7 390 mm pillar space is significantly wider than smaller HGS models, allowing it to accept large-diameter molds required for 20-liter containers such as square carboys, round barrels, and wide-body chemical drums. The 330\u2013400 mm mold size range and 550 mm stretching stroke define the geometric limits of bottles this <strong>semi automatic blow moulding machine<\/strong> can produce, and both dimensions should be confirmed against the target bottle drawing before tooling is ordered. At 1500 kg, the machine&#8217;s mass reflects the reinforced frame construction required to contain the forces generated during large-volume blowing cycles.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; box-sizing: border-box;\">\n<table style=\"width: 100%; border-collapse: collapse; table-layout: fixed; min-width: 480px;\">\n<thead>\n<tr style=\"background: linear-gradient(90deg,#2c3e50,#5d4037); color: #fff;\">\n<th style=\"padding: 10px 12px; text-align: left; white-space: nowrap;\">Semi Automatic<\/p>\n<p>Blow Molding Machine Parameter<\/th>\n<th style=\"padding: 10px 12px; text-align: left; white-space: nowrap;\">\u0648\u0627\u062d\u062f<\/th>\n<th style=\"padding: 10px 12px; text-align: left; white-space: nowrap;\">EP-HGS350A (20L)<\/p>\n<p>Semi Automatic Blow Molding Machine<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Pillar Space<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">580 \u00d7 390<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Mold Size<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">330\u2013400<\/td>\n<\/tr>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Open Mold Stroke<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">500<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Stretching Stroke<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">550<\/td>\n<\/tr>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Sealing Stroke<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">50<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Power Voltage<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">V\/Hz<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">220V \/ 50HZ<\/td>\n<\/tr>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Operating Pressure<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">MPA<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">0.8<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Blowing Pressure<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">MPA<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">3.0<\/td>\n<\/tr>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Efficiency<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">bph<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">150\u2013400<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Bottle Capacity<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0644<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">20<\/td>\n<\/tr>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Machine Size (L\u00d7W\u00d7H)<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">2270 \u00d7 860 \u00d7 1770<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px;\">\u0648\u0632\u0646 \u062f\u0633\u062a\u06af\u0627\u0647<\/td>\n<td style=\"padding: 9px 12px;\">kg<\/td>\n<td style=\"padding: 9px 12px;\">1500<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p><!-- Heater Parameters Table --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; border-bottom: 2px solid #5d4037; padding-bottom: 8px;\">Heater Parameters<\/h2>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; box-sizing: border-box;\">\n<table style=\"width: 100%; border-collapse: collapse; table-layout: fixed; min-width: 520px;\">\n<thead>\n<tr style=\"background: linear-gradient(90deg,#2c3e50,#5d4037); color: #fff;\">\n<th style=\"padding: 10px 12px; text-align: left; white-space: nowrap;\">\u067e\u0627\u0631\u0627\u0645\u062a\u0631<\/th>\n<th style=\"padding: 10px 12px; text-align: left; white-space: nowrap;\">\u0648\u0627\u062d\u062f<\/th>\n<th style=\"padding: 10px 12px; text-align: left; white-space: nowrap;\">HGJ-B (Wide-mouth Jar)<\/th>\n<th style=\"padding: 10px 12px; text-align: left; white-space: nowrap;\">HGJ-CL<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Power Supply<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\"><\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">3-Phase 4-Wire<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">3-Phase 4-Wire<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Efficiency<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">bhp<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">500\u20131200 pcs<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">200\u20132100 pcs<\/td>\n<\/tr>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Using Power<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u06a9\u06cc\u0644\u0648\u0648\u0627\u062a<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">5\u20138<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">5\u20138<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Mold Wall Thickness<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">2.5\u20134.2<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">2.5\u20134.2<\/td>\n<\/tr>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Preform Holder<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\"><\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">18 \/ 36<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">96<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Neck Diameter Range<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">130 \/ 65<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">68<\/td>\n<\/tr>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Mold Height<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">160<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">160<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">Machine Size (L\u00d7W\u00d7H)<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">\u0645\u06cc\u0644\u06cc\u200c\u0645\u062a\u0631<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">1880 \u00d7 720 \u00d7 1200<\/td>\n<td style=\"padding: 9px 12px; border-bottom: 1px solid #ddd;\">1500 \u00d7 600 \u00d7 1100<\/td>\n<\/tr>\n<tr style=\"background: #f5f0ee;\">\n<td style=\"padding: 9px 12px;\">\u0648\u0632\u0646 \u062f\u0633\u062a\u06af\u0627\u0647<\/td>\n<td style=\"padding: 9px 12px;\">kg<\/td>\n<td style=\"padding: 9px 12px;\">400<\/td>\n<td style=\"padding: 9px 12px;\">250<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1305\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/09\/onestepblowmachine-Semi-Automatic-Blow-Molding-Machine-Bottle-Show2.webp\" alt=\"onestepblowmachine-Semi Automatic Blow Molding Machine Bottle Show2\" width=\"800\" height=\"600\" title=\"\" srcset=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/09\/onestepblowmachine-Semi-Automatic-Blow-Molding-Machine-Bottle-Show2.webp 800w, https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/09\/onestepblowmachine-Semi-Automatic-Blow-Molding-Machine-Bottle-Show2-480x360.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><!-- Core Advantages --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; border-bottom: 2px solid #5d4037; padding-bottom: 8px;\">Why the EP-HGS350A Semi Automatic Blow Molding Machine Stands Apart<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; width: 100%; max-width: 100%; min-width: 100%; box-sizing: border-box;\">\n<div style=\"flex: 1 1 260px; background: #fdf6f0; border-top: 4px solid #5d4037; padding: 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2c3e50; margin-top: 0;\">550 mm Stretching Stroke \u2014 Deepest in the Series<\/h3>\n<p>Large-format containers demand a longer rod travel than their smaller counterparts, because the axial stretch ratio needed to orient the PET molecular chain across a 20-liter bottle height is substantially greater than for a 1- or 5-liter format. At 550 mm, the HGS350A Semi Automatic Blow Molding Machine provides the full travel required to orient material into the base of tall carboys and water dispensing containers without thinning the sidewall to the point of mechanical failure. This engineering detail is what separates a purpose-built large-format <strong>semi automatic pet blow molding machine<\/strong> from a machine that has simply been scaled up without accounting for the geometric constraints of deep-stretch blowing.<\/p>\n<\/div>\n<div style=\"flex: 1 1 260px; background: #fdf6f0; border-top: 4px solid #2c3e50; padding: 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2c3e50; margin-top: 0;\">Reinforced Frame for Large-Volume Blowing<\/h3>\n<p>At 1500 kg, the EP-HGS350A semi automatic blow molding machine&#8217;s structural mass is more than three times that of the 1-liter HGS150A, reflecting the increased steel section required to maintain platen parallelism under the higher clamping loads generated when blowing large, thick-walled containers at 3.0 MPA. Frame deflection during the blowing cycle is the primary cause of persistent parting-line flash on oversized containers \u2014 a problem this machine&#8217;s heavy-section welded frame directly addresses. Tie-rod alignment and platen flatness are verified on a coordinate measuring machine after final assembly, ensuring that the mold closing accuracy required to produce flash-free 20-liter bottles is achieved and maintained throughout the machine&#8217;s service life on a <strong>semi auto blow moulding machine<\/strong> line.<\/p>\n<\/div>\n<div style=\"flex: 1 1 260px; background: #fdf6f0; border-top: 4px solid #5d4037; padding: 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2c3e50; margin-top: 0;\">Wide Pillar Space for Large-Diameter Molds<\/h3>\n<p>The 580 \u00d7 390 mm pillar space is the widest in the HGS series, opening the door to 20-liter mold designs that would physically not fit on smaller platforms. Square-section carboy molds, large-diameter round barrel molds, and wide-flange drum designs all require a generous daylight opening that the HGS350A provides without modification. For Colombian and South American industrial packaging buyers who source containers for water dispensers, chemical distribution, or institutional cleaning product supply, this dimensional capability means the machine can produce the format directly required by the local retail and B2B supply chain without adapting the container design to fit a smaller machine&#8217;s constraints.<\/p>\n<\/div>\n<div style=\"flex: 1 1 260px; background: #fdf6f0; border-top: 4px solid #2c3e50; padding: 20px; box-sizing: border-box;\">\n<h3 style=\"color: #2c3e50; margin-top: 0;\">Digital Infrared Heating \u2014 Zone-Accurate Conditioning<\/h3>\n<p>Preforms for 20-liter containers are considerably heavier than those used in smaller formats, and their thick wall requires a longer infrared conditioning time with carefully calibrated zone temperatures to achieve a uniform melt front that allows complete, defect-free bottle expansion. The HGJ-B and HGJ-CL heater models supplied with the HGS350A provide zone-adjustable lamp banks that accommodate preform weights in the range typically specified for 20-liter carboy production. The result is consistent wall distribution from shoulder to base \u2014 the defining quality criterion for large containers that must withstand stacking and transport loads in the distribution chain. This thermal control capability is one of the core performance differentiators of this <strong>semi automatic molding machine<\/strong> platform.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- Customer Case Image --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; text-align: center; margin-bottom: 28px; box-sizing: border-box;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1303\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/09\/onestepblowmachine-product-EP-HGS350A-20L-Semi-Automatic-Blow-Molding-Machine.webp\" alt=\"onestepblowmachine-product-EP-HGS350A 20L Semi Automatic Blow Molding Machine\" width=\"800\" height=\"800\" title=\"\" srcset=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/09\/onestepblowmachine-product-EP-HGS350A-20L-Semi-Automatic-Blow-Molding-Machine.webp 800w, https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/09\/onestepblowmachine-product-EP-HGS350A-20L-Semi-Automatic-Blow-Molding-Machine-480x480.webp 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 800px, 100vw\" \/><\/div>\n<p><!-- How to Choose --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #f0ece8; border-radius: 6px; padding: 24px; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; margin-top: 0;\">Selecting the Right Semi Automatic Blow Molding Machine for Large-Format Production<\/h2>\n<p>Choosing a <strong>semi automatic blow molding machine<\/strong> for 20-liter containers requires a different evaluation framework than selecting a machine for 1- or 5-liter bottles. The three parameters that most directly determine machine suitability at this scale are pillar space, stretching stroke, and frame rigidity \u2014 in that order. Pillar space sets the maximum mold cross-section you can install; stretching stroke sets the maximum container height you can produce; and frame rigidity determines whether the machine can maintain mold-closing accuracy under the clamping forces generated at 3.0 MPA blowing pressure across the larger cavity area of a 20-liter mold.<\/p>\n<p>Output rate considerations also shift at this container size. The 150\u2013400 bottles-per-hour range on the HGS350A translates to 3,000\u20138,000 liters of packaged product per hour \u2014 a throughput that aligns with mid-scale water dispensing operations, institutional cleaning product bottlers, and chemical distribution companies that fill to order rather than to stock. If your filling line operates at a fixed cycle rate, matching the blow moulding output to that rate is more important than maximising bph, since excess container inventory creates handling and storage costs that erode the efficiency gains from running the <strong>semi auto molding machine<\/strong> at maximum speed.<\/p>\n<p>Preform selection is the third decision point. The HGJ-B heater&#8217;s 130 mm maximum neck diameter capability is specifically relevant for wide-mouth 20-liter containers such as water cooler bottles, which use large neck finishes to enable fast filling and dispensing. Confirm your preform neck finish standard \u2014 typically 55 mm or 63 mm for 20-liter water cooler containers \u2014 before specifying the heater model, as neck diameter compatibility determines which HGJ variant is appropriate for your production on this <strong>semi automatic moulding machine<\/strong>.<\/p>\n<\/div>\n<p><!-- Mold Section --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; border-bottom: 2px solid #5d4037; padding-bottom: 8px;\">Tooling for 20-Liter Container Production<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; width: 100%; max-width: 100%; min-width: 100%; box-sizing: border-box;\">\n<p><!-- Preform Injection Mold --><\/p>\n<div style=\"flex: 1 1 280px; background: #fdf6f0; border: 1px solid #d7ccc8; border-radius: 6px; padding: 20px; box-sizing: border-box;\">\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; display: block; margin-bottom: 14px;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/08\/onestepblowmachine-preform-injection-mold.webp\" alt=\"Preform Injection Mold for 20L Blow Molding\" title=\"\"><\/p>\n<h3 style=\"color: #2c3e50; margin-top: 0;\">Preform Injection Mold<\/h3>\n<p>The die lip on this mold set is engineered as two precisely mated sections, maintaining the axial concentricity of the preform throughout the injection and cooling phase \u2014 a requirement that becomes more demanding as preform diameter increases. Cooling channels are routed through the mold body to extract heat from the thick-wall sections of 20-liter preforms efficiently, minimising the conditioning time needed before each preform enters the stretch-blow station. Forming components are produced from imported 2316 die steel, a grade chosen for its resistance to the corrosive effects of PET processing moisture and its stable dimensional response to heat treatment. Structural components including the core plate and cavity plate are fabricated from 420 stainless steel for long-term corrosion resistance in the production environment. The mold is designed around standard interchangeable die fittings, and its architecture supports production of more than one preform specification from a single mold set, reducing tooling cost when multiple preform designs are required.<\/p>\n<\/div>\n<p><!-- Blowing Mold --><\/p>\n<div style=\"flex: 1 1 280px; background: #fdf6f0; border: 1px solid #d7ccc8; border-radius: 6px; padding: 20px; box-sizing: border-box;\">\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; display: block; margin-bottom: 14px;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/08\/onestepblowmachine-Blowing-Mold.webp\" alt=\"Blowing Mold for 20L Semi Automatic Blow Molding Machine\" title=\"\"><\/p>\n<h3 style=\"color: #2c3e50; margin-top: 0;\">Blowing Mold<\/h3>\n<p>Every blowing mold for 20-liter production is constructed from tool-grade steel with verified hardness and surface finish specifications, since the larger cavity area and higher clamping force at this scale place greater demands on mold material properties than smaller formats. The bottle geometry \u2014 including handle integration, sidewall stiffening ribs, and label panel dimensions \u2014 is developed in 3D CAD software before any cutting operations begin, enabling full virtual validation of the blow expansion path and wall-thickness distribution prior to tool manufacture. A diverse range of standard 20-liter bottle and carboy profiles is maintained in our tooling library, with custom designs developed to customer drawings or physical samples when required. The internal cooling circuit is designed to maintain even temperature distribution across the full large-area cavity surface, which is the most challenging thermal management aspect of 20-liter mold design. All mechanical components are finish-machined on CNC equipment to the dimensional tolerances required for consistent, high-quality production on a <strong>semi automatic pet blow moulding machine<\/strong> at 3.0 MPA.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- Application Scenarios --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; border-bottom: 2px solid #5d4037; padding-bottom: 8px;\">Application Scenarios of Semi Automatic Blow Molding Machine<\/h2>\n<p style=\"margin-bottom: 16px;\">The 20-liter format occupies a distinct position in the packaging landscape \u2014 large enough to serve bulk distribution and refillable-container markets, yet compact enough for household use on water dispensers. The EP-HGS350A <strong>semi automatic blow moulding machine<\/strong> serves the following core end-use applications across global and Colombian markets.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; width: 100%; max-width: 100%; min-width: 100%; box-sizing: border-box;\">\n<div style=\"flex: 1 1 180px; background: #f5f0ee; border-left: 4px solid #5d4037; padding: 16px; box-sizing: border-box;\">\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">\ud83d\udca7 Water Cooler Bottles<\/h4>\n<p style=\"margin: 0;\">The 20-liter refillable water cooler bottle is the defining application for this machine size. PET and PC materials provide the clarity, stacking strength, and food-contact compliance required for the water dispensing supply chain that is widely established across Colombia, Mexico, and other Latin American markets.<\/p>\n<\/div>\n<div style=\"flex: 1 1 180px; background: #f5f0ee; border-left: 4px solid #5d4037; padding: 16px; box-sizing: border-box;\">\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">\ud83e\uddea Chemical Bulk Distribution<\/h4>\n<p style=\"margin: 0;\">Industrial chemicals, cleaning concentrates, and process fluids distributed in 20-liter carboys require containers with chemical resistance, stackable geometry, and secure neck-finish sealing. PCTG and HDPE-compatible preforms processed on this <strong>semi automatic pet blowing machine<\/strong> meet these structural and regulatory requirements.<\/p>\n<\/div>\n<div style=\"flex: 1 1 180px; background: #f5f0ee; border-left: 4px solid #5d4037; padding: 16px; box-sizing: border-box;\">\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">\ud83d\udee2\ufe0f Edible Oil \u2014 Bulk Format<\/h4>\n<p style=\"margin: 0;\">Institutional kitchens, food manufacturers, and wholesale distributors in Colombia and across South America source edible oil in 20-liter containers. The machine&#8217;s wide mold space accommodates the handle-integrated body profiles that make large oil containers practical for manual pouring and dispensing operations.<\/p>\n<\/div>\n<div style=\"flex: 1 1 180px; background: #f5f0ee; border-left: 4px solid #5d4037; padding: 16px; box-sizing: border-box;\">\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">\ud83c\udf3f Agrochemical Storage Containers<\/h4>\n<p style=\"margin: 0;\">Pesticides, herbicide concentrates, and liquid fertilisers supplied to Colombian and broader Andean agricultural sectors in 20-liter containers must meet UN-rated packaging requirements for certain formulations. The chemical resistance and wall-thickness control of containers produced on this <strong>semi auto blow moulding machine<\/strong> support compliance with those standards.<\/p>\n<\/div>\n<div style=\"flex: 1 1 180px; background: #f5f0ee; border-left: 4px solid #5d4037; padding: 16px; box-sizing: border-box;\">\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">\ud83c\udfed Institutional Cleaning Products<\/h4>\n<p style=\"margin: 0;\">Janitorial and institutional cleaning suppliers distribute concentrated detergents, degreasers, and sanitisers in 20-liter carboys for use in hotels, hospitals, and food processing facilities. The machine&#8217;s PP and PCTG compatibility covers the chemical resistance profile required for these product categories.<\/p>\n<\/div>\n<div style=\"flex: 1 1 180px; background: #f5f0ee; border-left: 4px solid #5d4037; padding: 16px; box-sizing: border-box;\">\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">\ud83d\udd27 Lubricants &amp; Automotive Fluids<\/h4>\n<p style=\"margin: 0;\">Engine oils, transmission fluids, and industrial lubricants packaged for workshop and fleet maintenance use in 20-liter containers benefit from the thick-wall stability and precision neck finish that the HGS350A&#8217;s large-format stretch-blow process delivers, ensuring cap torque and leak-proof performance during transport.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- Machine Structure --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #f0ece8; border-radius: 6px; padding: 24px; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; margin-top: 0;\">Engineering Build &amp; Quality Control<\/h2>\n<p>The EP-HGS350A semi automatic blow molding machine represents the upper end of the HGS series output range, and its construction reflects that positioning. The main structural frame is fabricated from heavy welded steel sections and stress-relieved before precision machining, a process step that eliminates the residual frame stress that causes dimensional creep over time and leads to gradual deterioration of mold-closing accuracy on machines that skip this step. The machine&#8217;s 2270 \u00d7 860 \u00d7 1770 mm footprint requires a well-prepared factory floor with adequate load-bearing capacity \u2014 the 1500 kg machine weight should be factored into the civil engineering of the installation area along with the weight of the mold set, which can add several hundred kilograms at the 20-liter scale.<\/p>\n<\/div>\n<p><!-- Product Image 2 --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; text-align: center; margin-bottom: 28px; box-sizing: border-box;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; display: block;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/08\/onestepblowmachine-about-us7.webp\" alt=\"Semi Automatic Blow Molding Machine Manufacturing Facility\" title=\"\"><\/div>\n<p><!-- Partner Brands --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; border-bottom: 2px solid #5d4037; padding-bottom: 8px;\">Partner Brands<\/h2>\n<p>More than two decades of focused research and development underpin every machine we produce. Our engineering team has filed multiple national patents covering innovations in mold-locking mechanisms, preform heating systems, and pneumatic circuit design \u2014 advances that are embedded across the HGS range of <strong>semi automatic blow molding machine<\/strong> models. We have developed tailored blowing solutions for PET, PETG, PC, PCTG, and PP materials across cosmetics, water, oil, beverage, food, pharmaceutical, and baby product packaging sectors. Our installed base spans more than 40 countries, with clients including internationally recognised brands: Yibao, Haitian, Luhua, Walch, Blue Moon, Proya, Libai, Est\u00e9e Lauder, Walmart, Da Senlin, and Shining Eye Drops. This breadth of application experience informs every design decision in machines like the HGS350A, where the technical requirements of large-format production set a higher bar for mechanical and thermal engineering.<\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; text-align: center; margin-top: 16px; box-sizing: border-box;\"><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; display: block;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/08\/onestepblowmachine-Partner-Brands.webp\" alt=\"Partner Brands \u2013 Semi Automatic Blow Molding Machine Global Clients\" title=\"\"><\/div>\n<\/div>\n<p><!-- About Us --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; background: #fdf6f0; border-radius: 6px; padding: 24px; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; margin-top: 0;\">\u062f\u0631\u0628\u0627\u0631\u0647 \u0645\u0627<\/h2>\n<p>Our manufacturing operation focuses exclusively on blow moulding equipment, and that specialisation shows in the depth of our product range and the precision of our process knowledge. The HGS350A is not a scaled adaptation of a smaller machine \u2014 it was designed from the ground up for 20-liter production, with every structural, pneumatic, and thermal parameter calculated for the specific loads and process conditions of large-format stretch-blow moulding.<\/p>\n<h3 style=\"color: #2c3e50; text-align: center;\">\u06a9\u0627\u0631\u06af\u0627\u0647<\/h3>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; box-sizing: border-box;\">\n<div style=\"display: flex; flex-wrap: nowrap; gap: 12px; padding-bottom: 8px; min-width: 700px;\"><img decoding=\"async\" style=\"flex: 0 0 auto; width: 240px; height: 180px; object-fit: cover;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/02\/onestepblowmachine-about-us4.webp\" alt=\"\u06a9\u0627\u0631\u06af\u0627\u0647 \u06f1\" title=\"\"><br \/>\n<img decoding=\"async\" style=\"flex: 0 0 auto; width: 240px; height: 180px; object-fit: cover;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/02\/onestepblowmachine-about-us2-scaled.webp\" alt=\"\u06a9\u0627\u0631\u06af\u0627\u0647 \u06f2\" title=\"\"><br \/>\n<img decoding=\"async\" style=\"flex: 0 0 auto; width: 240px; height: 180px; object-fit: cover;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/02\/onestepblowmachine-about-us.webp\" alt=\"\u06a9\u0627\u0631\u06af\u0627\u0647 \u06f3\" title=\"\"><br \/>\n<img decoding=\"async\" style=\"flex: 0 0 auto; width: 240px; height: 180px; object-fit: cover;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/02\/onestepblowmachine-products-show3.webp\" alt=\"\u06a9\u0627\u0631\u06af\u0627\u0647 \u06f4\" title=\"\"><\/div>\n<\/div>\n<\/div>\n<p><!-- Related Products --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; border-bottom: 2px solid #5d4037; padding-bottom: 8px;\">Auxiliary Equipment for 20L Production Lines<\/h2>\n<p style=\"margin-bottom: 16px;\">A complete 20-liter container production line requires more than the blow moulding unit. The following auxiliary equipment integrates directly with the EP-HGS350A and is available through our one-stop supply programme, simplifying procurement and ensuring compatibility at the system level for this <strong>semi automatic blow molding machine<\/strong> installation.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; width: 100%; max-width: 100%; min-width: 100%; box-sizing: border-box;\">\n<div style=\"flex: 1 1 200px; background: #fdf6f0; border: 1px solid #d7ccc8; border-radius: 6px; padding: 18px; box-sizing: border-box; text-align: center;\">\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; display: block; margin-bottom: 10px;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/07\/onestepblowmachine-related-product-air-compressor.webp\" alt=\"High-Pressure Air Compressor for 20L Blow Molding\" title=\"\"><\/p>\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">Air Compressor<\/h4>\n<p style=\"margin: 0;\">For 20-liter blow moulding at 3.0 MPA, the required air volume per cycle is significantly greater than for smaller containers. An oil-free high-pressure compressor with adequate capacity \u2014 typically 2.0\u20133.0 m\u00b3\/min at 40 bar \u2014 prevents the pressure drop events that cause incomplete bottle formation on large-format <strong>semi automatic blowing machine<\/strong> lines.<\/p>\n<\/div>\n<div style=\"flex: 1 1 200px; background: #fdf6f0; border: 1px solid #d7ccc8; border-radius: 6px; padding: 18px; box-sizing: border-box; text-align: center;\">\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; display: block; margin-bottom: 10px;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/06\/onestepblowmachine-related-products-Mold-Temperature-Controller.webp\" alt=\"\u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062f\u0645\u0627\u06cc \u0642\u0627\u0644\u0628\" title=\"\"><\/p>\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">\u06a9\u0646\u062a\u0631\u0644 \u06a9\u0646\u0646\u062f\u0647 \u062f\u0645\u0627\u06cc \u0642\u0627\u0644\u0628<\/h4>\n<p style=\"margin: 0;\">Managing mold surface temperature is more critical at the 20-liter scale because the larger cavity area means a greater temperature differential can develop between the centre and edges of the mold if cooling flow is not properly controlled. A dedicated mold temperature controller maintains cavity surface temperature within \u00b11\u00b0C across the full production shift.<\/p>\n<\/div>\n<div style=\"flex: 1 1 200px; background: #fdf6f0; border: 1px solid #d7ccc8; border-radius: 6px; padding: 18px; box-sizing: border-box; text-align: center;\">\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; display: block; margin-bottom: 10px;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/07\/onestepblowmachine-related-products-Bottle-visual-inspection-machine.webp\" alt=\"Bottle Visual Inspection Machine\" title=\"\"><\/p>\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">Bottle Visual Inspection Machine<\/h4>\n<p style=\"margin: 0;\">Automated inspection systems for 20-liter containers check wall-thickness uniformity, base drop integrity, and neck finish geometry before containers enter the filling line. For water cooler bottle and chemical container applications where leakage in the field carries significant liability, automated inspection provides a documented quality gate that manual visual checks cannot match.<\/p>\n<\/div>\n<div style=\"flex: 1 1 200px; background: #fdf6f0; border: 1px solid #d7ccc8; border-radius: 6px; padding: 18px; box-sizing: border-box; text-align: center;\">\n<p><img decoding=\"async\" style=\"width: 100%; max-width: 100%; height: auto; display: block; margin-bottom: 10px;\" src=\"https:\/\/onestepblowmachine.com\/wp-content\/uploads\/2026\/08\/Blow-Molding-Machine-Auxiliary-Machinery.webp\" alt=\"Chiller and Compressor Package\" title=\"\"><\/p>\n<h4 style=\"color: #2c3e50; margin: 0 0 8px 0;\">Chiller &amp; Compressor Package<\/h4>\n<p style=\"margin: 0;\">Integrated chiller and compressor skids reduce the installation footprint of the utility supply, simplify electrical planning, and ensure that both cooling water and compressed air are matched to the HGS350A&#8217;s rated consumption. A pre-engineered package removes the guesswork from utility sizing for new or expanding production facilities.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><!-- FAQ --><\/p>\n<div style=\"width: 100%; max-width: 100%; min-width: 100%; margin-bottom: 28px; box-sizing: border-box;\">\n<h2 style=\"color: #2c3e50; border-bottom: 2px solid #5d4037; padding-bottom: 8px;\">\u0633\u0648\u0627\u0644\u0627\u062a \u0645\u062a\u062f\u0627\u0648\u0644<\/h2>\n<div style=\"border: 1px solid #ddd; border-radius: 5px; margin-bottom: 10px; overflow: hidden;\">\n<details style=\"width: 100%; box-sizing: border-box;\">\n<summary style=\"background: #f5f0ee; padding: 14px 16px; cursor: pointer; font-weight: bold; color: #2c3e50; list-style: none; width: 100%; box-sizing: border-box;\">Q1. What is the best semi automatic blow molding machine for producing 20-liter water cooler bottles for the Colombian and South American market?<\/summary>\n<div style=\"padding: 14px 16px; background: #fff;\">The EP-HGS350A is the appropriate model in the HGS series for 20-liter water cooler bottle production. Its 580 \u00d7 390 mm pillar space accepts the wide-diameter molds required for standard 20-liter carboy profiles, and the 550 mm stretching stroke covers the bottle height range used in Colombian and regional water dispensing supply chains. PET and PC materials both process well on this machine, and the HGJ-B heater&#8217;s 130 mm maximum neck diameter range accommodates the large neck finishes used on refillable water cooler formats. For buyers in Colombia setting up a water bottling operation, the 150\u2013400 bph output rate aligns with most small-to-mid-scale dispenser refill operations without requiring a fully automatic system.<\/div>\n<\/details>\n<\/div>\n<div style=\"border: 1px solid #ddd; border-radius: 5px; margin-bottom: 10px; overflow: hidden;\">\n<details style=\"width: 100%; box-sizing: border-box;\">\n<summary style=\"background: #f5f0ee; padding: 14px 16px; cursor: pointer; font-weight: bold; color: #2c3e50; list-style: none; width: 100%; box-sizing: border-box;\">Q2. How does a 20-liter semi automatic blowing machine handle the higher preform weight and longer conditioning time compared with smaller formats?<\/summary>\n<div style=\"padding: 14px 16px; background: #fff;\">A 20-liter preform is substantially heavier than a 1- or 5-liter preform \u2014 typically 400\u2013600 grams depending on container wall specification \u2014 and requires a proportionally longer infrared conditioning time to achieve a homogeneous melt front across the thick wall section. The HGS350A addresses this through zone-adjustable infrared heater banks that can extend dwell time and increase lamp intensity in the gate and shoulder zones, where thermal mass is greatest. This zone control prevents the condition where the preform outer surface reaches blow temperature before the inner wall has softened sufficiently, which causes surface haze and uneven wall distribution in the finished container. Operators transitioning from smaller formats to 20-liter production on a <strong>semi automatic molding machine<\/strong> typically require one to two days of process optimisation time to establish the heating profile that delivers consistent blow quality across their specific preform specification.<\/div>\n<\/details>\n<\/div>\n<div style=\"border: 1px solid #ddd; border-radius: 5px; margin-bottom: 10px; overflow: hidden;\">\n<details style=\"width: 100%; box-sizing: border-box;\">\n<summary style=\"background: #f5f0ee; padding: 14px 16px; cursor: pointer; font-weight: bold; color: #2c3e50; list-style: none; width: 100%; box-sizing: border-box;\">Q3. Which material \u2014 PET or PC \u2014 is better for 20-liter refillable water cooler bottles produced on a semi automatic pet blow molding machine?<\/summary>\n<div style=\"padding: 14px 16px; background: #fff;\">Both PET and PC are used for 20-liter water cooler bottles, and the choice depends on whether the container is single-use or refillable and on the sterilisation method used in the refill process. PC offers superior impact resistance and tolerates hot-water sanitisation at higher temperatures than PET, making it the traditional choice for refillable multi-trip containers in the water cooler market. PET is increasingly used for single-use 20-liter bottles where the lower raw material cost and full recyclability are priorities \u2014 an important consideration in markets like Colombia where post-consumer PET recycling infrastructure is developing. Both materials can be processed on the EP-HGS350A Semi Automatic Blow Molding Machine, and the decision between them is ultimately a packaging strategy and economics question rather than a machine capability question.<\/div>\n<\/details>\n<\/div>\n<div style=\"border: 1px solid #ddd; border-radius: 5px; margin-bottom: 10px; overflow: hidden;\">\n<details style=\"width: 100%; box-sizing: border-box;\">\n<summary style=\"background: #f5f0ee; padding: 14px 16px; cursor: pointer; font-weight: bold; color: #2c3e50; list-style: none; width: 100%; box-sizing: border-box;\">Q4. Where should a new industrial packaging facility in Latin America position the EP-HGS350A semi automatic moulding machine in its production floor layout?<\/summary>\n<div style=\"padding: 14px 16px; background: #fff;\">The EP-HGS350A Semi Automatic Blow Molding Machine requires a floor space allocation that accounts for the machine footprint of 2270 \u00d7 860 mm plus safe working clearance on all four sides \u2014 typically 1200 mm on the operator side and 800 mm on the remaining sides. The heater unit positions upstream of the main blow station and requires its own floor space of approximately 1880 \u00d7 720 mm for the HGJ-B model. The compressed air supply line and cooling water connections should enter from the rear or service side, keeping the operator&#8217;s working area free of utility lines. For facilities in Latin America with column-grid structures, confirming that the machine weight of 1500 kg (plus mold) is within the floor loading capacity of the allocated bay is a prerequisite that should be checked with the civil engineer before installation planning is finalised.<\/div>\n<\/details>\n<\/div>\n<div style=\"border: 1px solid #ddd; border-radius: 5px; margin-bottom: 10px; overflow: hidden;\">\n<details style=\"width: 100%; box-sizing: border-box;\">\n<summary style=\"background: #f5f0ee; padding: 14px 16px; cursor: pointer; font-weight: bold; color: #2c3e50; list-style: none; width: 100%; box-sizing: border-box;\">Q5. What maintenance schedule is recommended for a semi automatic pet stretch blow moulding machine running 20-liter containers in a two-shift operation?<\/summary>\n<div style=\"padding: 14px 16px; background: #fff;\">For a two-shift operation producing 20-liter containers, a structured maintenance cadence is important given the higher mechanical loads involved at this scale. Daily checks should cover air filter cleanliness, lubrication of moving pivot points, verification of blowing pressure gauge readings, and inspection of the mold parting-line surface for early flash formation. Weekly maintenance should include inspection of the pneumatic cylinder seals, checking of all fastener torque on the tie rods and platen bolts, and flow verification of the cooling water circuit. The infrared heating lamps should be checked every 1,000 operating hours and replaced as output uniformity begins to degrade. A full mold service \u2014 cavity surface polishing and cooling channel flush \u2014 is recommended every 500,000 cycles on this <strong>semi automatic blow molding machine<\/strong>, with a complete overhaul of the pneumatic circuit every three years under normal operating conditions.<\/div>\n<\/details>\n<\/div>\n<\/div>\n<\/div>\n<p style=\"text-align: right;\">\u062a\u062f\u0648\u06cc\u0646\u06af\u0631: PXY<\/p>","protected":false},"excerpt":{"rendered":"<p><span class=\"qk-md-text complete\">The\u00a0<\/span><strong class=\"qk-md-strong complete\"><span class=\"qk-md-text complete\">EP-HGS350A Semi-Automatic Blow Molding Machine<\/span><\/strong><span class=\"qk-md-text complete\">\u00a0is a heavy-duty solution engineered for producing large-volume 20L PET containers. Featuring a robust pneumatic-hydraulic linkage clamping system, it accommodates molds up to 580\u00d7390mm with a substantial 550mm stretching stroke. Equipped with digital infrared heating, the machine ensures uniform preform temperature distribution for consistent wall thickness in large bottles. Operating at a working pressure of 0.8MPa and a blowing pressure of 3.0MPa, it delivers a production efficiency of 150-400 bottles per hour. With a machine size of 2270\u00d7860\u00d71770mm and a weight of 1500kg, the HGS350A is ideal for manufacturing industrial drums, water cooler jugs, and large beverage containers, offering stability and precision for high-capacity packaging needs.<\/span><\/p>","protected":false},"featured_media":1303,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[43],"product_tag":[],"class_list":["post-1302","product","type-product","status-publish","has-post-thumbnail","product_cat-semi-automatic-blow-molding-machine","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/onestepblowmachine.com\/fa\/wp-json\/wp\/v2\/product\/1302","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onestepblowmachine.com\/fa\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/onestepblowmachine.com\/fa\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/onestepblowmachine.com\/fa\/wp-json\/wp\/v2\/comments?post=1302"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onestepblowmachine.com\/fa\/wp-json\/wp\/v2\/media\/1303"}],"wp:attachment":[{"href":"https:\/\/onestepblowmachine.com\/fa\/wp-json\/wp\/v2\/media?parent=1302"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/onestepblowmachine.com\/fa\/wp-json\/wp\/v2\/product_brand?post=1302"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/onestepblowmachine.com\/fa\/wp-json\/wp\/v2\/product_cat?post=1302"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/onestepblowmachine.com\/fa\/wp-json\/wp\/v2\/product_tag?post=1302"}],"curies":[{"name":"\u0648\u0631\u062f\u067e\u0631\u0633","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}