EP-HGA.FS-2CG220 PET / PETG Bottle Blow Molding Machine

Dual-Cavity High Throughput

Two blowing cavities operating in parallel deliver a theoretical output of 1090 bph — the highest in this blow molding machine series. For factories running 5L household cleaning or cosmetic refill containers on a single shift, this dual-cavity configuration effectively doubles productive output compared to an equivalent single-cavity machine without requiring a proportionally larger footprint or headcount increase.

Widest Neck Range in the Series

A neck diameter range up to 168 mm — the largest across the entire daily chemicals blow molding machine lineup — opens up a range of wide-mouth bottle designs that smaller models cannot accommodate. This is particularly relevant for dispensing pump bottles, wide-neck refill containers, and premium cosmetic jars that require an exceptionally generous opening for filling line compatibility.

Extended 500 mm Stretching Stroke

At 500 mm, the stretch rod travel on this automatic pet blowing machine is the longest in the series. Greater stretch rod travel enables better biaxial orientation in tall PET containers, improving the bottle's top-load strength and barrier properties — two qualities that distributors in Colombia and other Latin American markets specifically request for long-distance transport packaging.

High-Volume Air System

With a high-pressure air consumption of 5800 ltr/min at 30 kg/cm² blowing pressure, and low-pressure demand of 1600 ltr/min, the machine's air system is scaled to sustain dual-cavity blowing at full throughput without pressure drop. This calls for a correctly sized oil-free air compressor on the supply side — a critical infrastructure decision when planning a complete production line for this bottle blow molding machine.

High-Efficiency Cooling Circuit

The cooling water system runs at 80 ltr/min with a target temperature band of 8–10°C — a tighter and higher-flow specification than smaller models in the series, reflecting the greater mold surface area and faster cycle demands of a dual-cavity fully automatic blow moulding machine. Consistent cooling at this flow rate prevents thermal drift between cavities, keeping left-right bottle dimensions within tolerance across extended production campaigns.

Two-Step Process at Industrial Scale

The two step blow molding machine architecture allows preform production and bottle blowing to be scheduled and optimized independently. For large industrial operations producing multiple bottle formats, this decoupling means the blowing station can run at maximum utilization while preform supply is managed upstream — a significant operational and cost advantage over integrated single-stage systems at high output volumes.

Preform Injection Mold

The gate lip is engineered as a two-segment assembly that locks the preform body and nozzle into strict coaxial alignment during every forming stroke — a precision requirement that becomes increasingly important when producing large-format preforms destined for 5L containers with 168 mm neck openings. The internal cooling channel layout is calculated to extract heat from the preform quickly and uniformly, shortening cycle intervals and preventing the crystalline hazing that results from uneven thermal quenching. Forming cavity surfaces are machined from 2316 imported die steel, a grade selected for its combination of rust resistance and favorable response to heat treatment. The core plate and cavity plate are produced from 420 stainless steel, whose corrosion resistance supports reliable operation in humid or chemically demanding environments. Quick-access maintenance points reduce tooling downtime, and the standardized interchangeable fitting system permits a single mold assembly to support different preform wall profiles, reducing total tooling investment when running varied bottle product ranges.

Blowing Mold

Each blowing mold block is produced from premium tool steel chosen for the right balance of surface hardness, thermal conductivity, and fatigue life under the cyclic loading of 30 kg/cm² blowing pressure sustained across a dual-cavity operating cycle. Bottle cavity geometries originate from parametric 3D design modeling, which allows designers to define complex exterior profiles — textured grips, embossed logos, non-round cross-sections — with the dimensional precision needed for accurate label application and tight cap fitment. A verified library of bottle designs is available for fast tooling procurement, and custom profile development can be completed to customer specification with dimensional sign-off before manufacture. Internal water cooling passages are routed using flow simulation to ensure even temperature distribution across both cavity halves, so bottles emerging from cavity one and cavity two share equivalent shrinkage and dimensional characteristics. Every structural component is machined on CNC equipment to maintain tolerances that keep mold-to-mold and cavity-to-cavity consistency throughout production.

High-Volume Cosmetic Packaging

Large-format lotion pumps, shampoo refill pouches-to-bottle conversions, and dispensing containers in PETG up to 5L. The 190 mm body diameter clearance and 168 mm neck range make this blow molding machine the right platform for wide-body prestige skincare packaging lines.

Industrial Household Cleaners

Dual-cavity throughput of 1090 bph is ideal for high-volume detergent, bleach, and multipurpose cleaner container lines. Colombian and Latin American cleaning product brands building high-speed packaging operations will find this automatic pet blowing machine matches their shift output targets efficiently.

Edible Oil & Condiment Bottles

PET bottles for edible oils, vinegar, and sauces at 2L to 5L capacity. The biaxial orientation delivered by the 500 mm stretching stroke improves the PET bottle's oxygen barrier performance — a direct food safety benefit for manufacturers exporting to markets with strict shelf-life labeling requirements.

Pharmaceutical & Nutraceutical

Wide-mouth PETG jars for tablet supplements, protein powders, and liquid vitamins. The machine's dual-cavity consistency ensures left and right cavity bottles meet the same dimensional specification — a requirement for pharmaceutical packaging lines where mixed-cavity bottles would complicate batch documentation.

Baby Care & Personal Hygiene

Bulk baby wash, family-size shampoo, and personal hygiene containers where PETG provides the required clarity and regulatory-grade safety profile. The two-stage process supports detailed preform quality control before blowing — especially important for baby product categories where material traceability is scrutinized.

At 5800 ltr/min high-pressure demand, this blow molding machine requires a high-capacity oil-free compressor rated to at least 30–35 bar delivery pressure. An oil-free unit protects the product quality of food, pharmaceutical, and cosmetic bottles by eliminating lubricant carry-over into the blowing air circuit — a non-negotiable requirement for any regulated packaging application.

Controls mold surface temperature with precision, compensating for the additional heat load generated by dual-cavity blowing cycles. Balanced mold temperature between the two cavities is essential to ensure that bottles from cavity one and cavity two are dimensionally equivalent — particularly critical for inline filling lines where mixed-dimension bottles cause capper or labeler jams.

At 1090 bph output, automated inspection downstream of the blow molding machine is not optional — it is the only practical quality gate. Optical inspection detects wall thickness variation, surface contamination, neck deformation, and cavity-specific defect patterns in real time, allowing production teams to intervene before non-conforming bottles reach downstream filling equipment.

Maintains the 8–10°C cooling water supply at 80 ltr/min flow required by the dual-cavity mold system. An undersized chiller on this machine will allow mold temperature to creep upward during extended runs, increasing cycle time and degrading bottle dimensional stability — especially in tropical factory environments common in Colombia and Southeast Asia.