EP-HGA.ES-6C76 Water & Beverage Bottle Blow Molding Machine
The EP-HGA.ES-6C76 Water & Beverage Bottle Blow Molding Machine is a high-efficiency, 6-cavity system engineered for mass production of mineral water and beverage bottles. It handles containers up to 700ml with a max neck diameter of 38mm and body diameter of 68mm. Achieving a theoretical output of 7,200 bottles per hour, it features a 100mm clamping stroke and holds 130 preforms. The machine operates at 7 kg/cm² pressure with a max heating power of 62.5 kW. With compact dimensions of 4,690×2,070×2,000mm and a weight of 5,500kg, it optimizes floor space while delivering consistent quality for high-volume beverage packaging lines.
EP-HGA.ES-6C76 Water & Beverage Bottle Blow Molding Machine
The EP-HGA.ES-6C76 is a high-output, two-step blow molding machine purpose-built for mineral water, juice, tea, and carbonated beverage packaging lines. Engineered around a six-cavity configuration with a theoretical output of up to 7,200 bottles per hour, this automatic pet blowing machine is the preferred choice for mid-to-large bottling operations that demand consistent wall thickness, dimensional accuracy, and minimal downtime. Whether you are setting up a new production facility in Colombia, expanding a beverage filling line in Southeast Asia, or modernizing an existing plant in Europe, the ES-6C76 delivers the reliability and throughput a competitive market demands.
As a fully automatic blow moulding machine, it integrates a PLC-driven control system, servo-assisted preform feeding, and an infrared preform heating oven into a compact footprint of 4,690 × 2,000 × 2,000 mm. This two stage blow molding machine separates preform conditioning from the bottle-blowing step, allowing operators to optimize each stage independently — a fundamental advantage of the two-step blow molding process that single-stage machines cannot match.
Technical Specifications — HGA.ES-6C76
The following parameters apply to the standard ES-6C76 configuration. All values are factory-tested reference data; actual performance may vary slightly based on preform specification, ambient conditions, and bottle geometry.
| Parameter | Unit | Value |
|---|---|---|
| Molding | ||
| Clamping Stroke | mm | 100 |
| Mold-Open Distance | mm | 300 |
| Mold-Close Distance | mm | 200 |
| Stretching Stroke | mm | 350 |
| Preform Holder | — | 96 |
| Number of Cavities | — | 6 |
| Container | ||
| Max. Container Volume | ml | 700 |
| Max. Neck Diameter Range | mm | 38 |
| Max. Container Diameter | mm | 68 |
| Max. Container Height | mm | 240 |
| Theoretical Output | bph | 7,200 |
| Electrical System | ||
| Max. Heating Power | kW | 62.5 |
| Normal Heating Power | kW | 26 |
| Air System | ||
| Operating Pressure | kg/cm² | 7 |
| Low Pressure Air Consumption | ltr/min | 900 |
| Blowing Pressure | kg/cm² | 35 |
| High Pressure Air Consumption | ltr/min | 5,800 |
| Cooling Water | ||
| Operating Pressure | kg/cm² | 5–6 |
| Water Temperature | °C | 8–12 |
| Flow Rate | ltr/min | 40 |
| Machine | ||
| Machine Size (L×W×H) | mm | 4690 × 2000 × 2000 |
| Machine Weight | kg | 6,500 |
Key Product Highlights
The ES-6C76 was developed specifically for the water and beverage sector, where production uptime, bottle clarity, and label-panel consistency are non-negotiable. The machine supports PET containers from 100 ml to 700 ml, accommodating a neck diameter range of up to 38 mm and a maximum body diameter of 68 mm. The maximum container height reaches 240 mm, covering standard 330 ml, 500 ml, and 600 ml beverage formats as well as small mineral water bottles — all within the same mold setup, simply by changing the blowing mold inserts.
Because this pet blow molding machine follows the two step blow molding workflow, preforms can be produced off-line or sourced from specialist preform manufacturers, giving buyers complete supply-chain flexibility. The infrared heating zone uses zoned temperature control to accommodate a wide variety of preform wall thicknesses, ensuring that every bottle meets the required axial and hoop strength before it leaves the blowing station. Compared with older bottle molding machine designs, the ES-6C76 reduces energy consumption per bottle through its variable-frequency drives and regenerative air-recovery circuits.
Our Key Advantages
What separates this automatic pet blowing machine from comparable models on the market is not a single feature — it is the integration of every sub-system into one coherent, production-ready platform. The ES-6C76 uses a high-precision servo motor for the preform transport chain, reducing mechanical wear and cutting changeover time to under 30 minutes when switching between bottle formats. The heating oven is divided into independently controlled infrared zones, so operators can fine-tune the temperature profile for different preform wall distributions — an essential capability when running lightweight eco-preforms that are increasingly common in sustainable beverage packaging.
The mold clamping unit uses a toggle-lever mechanism that delivers consistent clamping force across all six cavities simultaneously, eliminating the parting-line flash that plagues hydraulic-only designs. A built-in high-pressure air recovery system recaptures blow-pressure air from the previous cycle and redirects it for the pre-blow phase of the next, reducing compressor load and lowering per-bottle energy cost. For buyers in markets such as Colombia, Brazil, and the broader Latin American region — where energy tariffs and altitude affect compressor performance — this architecture provides a tangible operational advantage.
⚡ Energy Efficiency
Variable-frequency drives and air recovery circuits cut per-bottle energy use significantly versus fixed-speed legacy machines.
🎯 6-Cavity Precision
Simultaneous blow of six cavities with servo-driven stretch rods ensures wall-thickness uniformity within ±0.05 mm across every bottle.
🔄 Fast Format Change
Standardized mold-plate dimensions and quick-release clamps allow format changeover in under 30 minutes without specialist tooling.
📦 Broad Bottle Range
Handles volumes from 100 ml to 700 ml — water, juice, tea, CSD — within the same machine frame, maximizing equipment utilization.
Partner Brands
With over two decades of dedicated research and development, our engineering team has built extensive hands-on experience in the manufacture, commissioning, and long-term management of blow molding machine systems. We continuously refine our production processes and hold numerous national patents covering both mechanical innovation and control software. Our blow molding machine portfolio spans PET, PETG, PC, PCTG, and PP materials, serving cosmetics, mineral water, edible oil, beverages, food packaging, pharmaceuticals, and baby-care products — with a particularly strong track record in the high-end cosmetics and pharmaceutical sectors where dimensional tolerances are tightest. Clients who rely on our plastic blow molding machine solutions include Yibao, Haitian, Luhua, Walch, Blue Moon, Proya, Libai, Estée Lauder, Walmart, Da Senlin, and Shining Eye Drops.
Mold Design & Engineering
The quality of a bottle blow molding machine is ultimately determined by its mold engineering. Every mold set supplied for the ES-6C76 is produced in-house with CNC machining centers and undergoes dimensional verification before shipment.
Preform Injection Mold
- The die lip is constructed in two separate sections, guaranteeing co-axiality throughout the preform forming process.
- Optimized cooling channel geometry accelerates cycle time while keeping preform temperatures within a tight tolerance window.
- All forming components are machined from imported 2316 die steel — fully hardened, rust-resistant, and rated for extended production runs.
- Core plates, cavity plates, and structural elements are fabricated from 420 stainless steel for superior corrosion resistance in humid production environments.
- The mold is designed for straightforward field maintenance with clearly marked service points.
- Interchangeable die inserts follow a standardized interface, enabling a single mold base to accommodate different preform neck finishes.
- The modular cavity architecture allows one tool to produce multiple preform variants by swapping inserts rather than replacing the entire mold.
Blowing Mold
- Cavities are carved from premium-grade alloy steel selected for long-term dimensional stability under repeated high-pressure cycles.
- Bottle geometry is developed using professional 3D CAD/CAM software, ensuring faithful reproduction of label-panel flatness and base geometry.
- A broad library of bottle shapes is available for selection, and custom designs can be modeled and validated digitally before steel is cut.
- The internal water-cooling circuit is engineered for even heat extraction across the bottle body, reducing cycle time and preventing hot spots.
- Every metallic component is finished on multi-axis CNC machining centers, holding tolerances that manual methods cannot reliably achieve.
Machine Structure & Performance Advantages
The ES-6C76 stretch blow molding machine is engineered around three core structural principles that define its performance edge in high-volume beverage bottling environments.
Preform Heating System: The infrared preform heating oven uses individual zone temperature controllers to accommodate different preform designs. Each zone is independently adjustable, which means the operator can establish a precise temperature gradient from the neck support ring to the base of the preform — critical for achieving uniform wall distribution in asymmetric bottle shapes. The oven's reflector geometry is calibrated to minimize dead spots, ensuring even energy absorption regardless of preform colour or clarity grade.
Blow Station Mechanics: The six-cavity blow station uses a bottom-loaded mold carrier that simplifies mold installation and removal. The toggle-lever clamping mechanism is rated for millions of open-close cycles without loss of clamping force calibration. Servo-driven stretch rods extend at a programmable speed profile — rather than a fixed mechanical speed — which is particularly beneficial when processing lightweight preforms where the stretch-blow window is narrower than standard.
Control Architecture: The PLC control platform provides recipe-based production management: store up to 50 bottle format recipes and recall any of them with two keystrokes. Real-time production data — output rate, heating zone temperatures, blowing pressures, and reject count — are displayed on the colour touchscreen and can be exported via USB for quality records or remote diagnostics. This level of control intelligence makes the ES-6C76 a genuinely smart pet blow molding machine, not just a fast one.
Application Scenarios
The ES-6C76 blow molding machine for sale serves a broad spectrum of packaging applications, all within the water and beverage sector. Below are the primary end-use contexts where this machine delivers the greatest operational value.
💧 Mineral Water Bottles
Purpose-optimised for 330 ml, 500 ml, and 600 ml still water bottles in PET. The six-cavity layout delivers 7,200 bph, matching the throughput requirements of mid-scale and large water-filling plants. Neck finish compatibility with standard PCO 1881 and PCO 28 mm closures is standard.
🍹 Juice & Tea Bottles
Compatible with hot-fill preforms for juice and tea applications up to 85°C fill temperature. The mold cooling system is engineered to rapidly chill the bottle after blowing, maintaining the bottle's shape integrity during the thermal shock of hot-fill operations.
🥤 Carbonated Soft Drink Bottles
The high-pressure blow circuit (35 kg/cm²) ensures the material is fully biaxially oriented, giving CSD bottles the pressure resistance they require. Bottle base geometry — champagne or petaloid — can be implemented via the blowing mold insert without modifying the machine.
🧴 Functional & Sports Drinks
Ergonomic grip-panel and labelling-zone geometries can be incorporated into the blowing mold design. The machine accommodates wide-mouth preforms (up to 38 mm neck diameter), which are common in sports nutrition and isotonic drink packaging.
💊 Pharmaceutical & Health Drinks
For health beverage lines where cleanliness is paramount, the machine's enclosed preform transport path and stainless-steel contact surfaces minimise contamination risk. Compatible with PET preforms produced under clean-room conditions.
How to Choose the Right Blow Molding Machine
Selecting the correct bottle blow molding machine depends on more variables than output speed alone. Working through the following criteria systematically will help you arrive at the right specification before committing to a purchase — and avoid costly under- or over-investment.
1. Target Bottle Volume and Geometry. The ES-6C76 is optimised for containers up to 700 ml with a maximum body diameter of 68 mm. If your core SKU is a 1.5-litre bottle, you would need a machine with a larger mold-open distance and a longer stretching stroke. Map your full bottle range before shortlisting models.
2. Required Output Rate. At 7,200 bph with six cavities, the ES-6C76 is well-matched to filling lines rated at 6,000–7,000 bph. If your filler runs faster, consider an eight-cavity configuration or two parallel machines to avoid the blow machine becoming the line bottleneck.
3. Single-Stage vs. Two-Step Process. A two step blow molding machine like the ES-6C76 suits operations that source preforms externally or run mixed production schedules. If your site runs a single material and a single bottle at very high volume, an injection stretch blow molding machine in a one-step configuration may offer a lower total footprint. Understanding what are the differences between single-stage and two-stage blow molding for PET bottles is essential before choosing your architecture.
4. Utility Infrastructure. Confirm your site can supply the required high-pressure compressed air (5,800 ltr/min at 35 kg/cm²) and cooling water (40 ltr/min at 8–12°C). In regions such as Colombia and other high-altitude locations, compressor selection must account for reduced atmospheric pressure. Matching your air compressor capacity to the machine's stated consumption is a non-negotiable commissioning step.
Related Auxiliary Equipment
A blow molding machine performs best when integrated with the right auxiliary equipment. We supply and recommend the following ancillary systems to complete your production line — all tested for compatibility with the ES-6C76 platform, supporting a genuine one-stop supply advantage.
Air Compressor
High-pressure oil-free air compressors selected to match the ES-6C76's 5,800 ltr/min demand at 35 kg/cm². Oil-free models are recommended to prevent contamination of food-grade PET bottles.
Mold Temperature Controller
Precision water-circulation mold temperature controllers maintain the blowing mold within the 8–12°C operating window, ensuring stable cycle times and consistent bottle clarity across long production runs.
Bottle Visual Inspection Machine
Inline vision inspection systems detect wall-thickness defects, base failure, gate-mark deviation, and neck ovality in real time — automatically rejecting non-conforming bottles before they reach the filler.
Chiller & Air Compressor Systems
Industrial chillers and auxiliary compressor packages for complete utility integration. Pairing the right chiller with the mold temperature controller stabilises the thermal environment and maximises machine uptime.
About Us
We are a specialist manufacturer of blow molding machine systems with more than twenty years of continuous development in this field. Our engineering capabilities extend across the full product life cycle — from initial bottle design and mold engineering, through machine manufacture and factory acceptance testing, to on-site installation support and after-sales technical service. We hold a portfolio of national patents covering innovations in preform heating, mold clamping mechanics, and servo-driven stretch-blow control systems.
Our export footprint covers more than 50 countries. In the Latin American market — including Colombia, Brazil, Chile, and Mexico — we have established a growing installed base of bottle blow molding machine systems in both the water and beverage sector and the personal-care packaging industry. Regional distributors provide local spare-parts stocking and first-response technical support, minimising downtime for customers far from our manufacturing base.
Workshop
Frequently Asked Questions
Q1. What are the steps involved in the two-stage blow molding process for producing PET water bottles at high volume?
In a two step blow molding machine workflow, the process is divided into two separate operations. First, PET resin is injection-moulded into a preform — a test-tube-shaped intermediate with a finished neck finish. The preforms are then cooled, stored, and transported to the blow molding machine in a separate step. On the ES-6C76, preforms are loaded into the infrared heating oven, where individually controlled zones condition the preform body to its biaxial orientation temperature (typically 95–115°C for PET). The conditioned preform is then transferred to the six-cavity blow station, where a servo-driven stretch rod extends axially while high-pressure air (35 kg/cm²) inflates the preform radially into the bottle-shaped mold cavity. The result is a biaxially oriented PET bottle with significantly improved mechanical properties compared with a non-oriented container. The two-step approach allows preform production to be decoupled from bottle production, which is a core efficiency advantage for high-volume beverage operations.
Q2. Which types of blow molding machines are best suited for producing mineral water and carbonated beverage bottles for export markets like Colombia?
For mineral water and carbonated soft drinks destined for export markets — including Colombia and broader Latin America — a fully automatic stretch blow molding machine operating on the two-stage principle is generally the most appropriate choice. The biaxial orientation achieved in the stretch-blow process delivers the hoop strength needed to hold CO₂ pressure in CSD bottles, and the process efficiency of a multi-cavity automatic pet blowing machine supports the output volumes required for cost-competitive export pricing. The ES-6C76 is particularly well-suited to this application given its 6-cavity configuration, 7,200 bph output rate, and compatibility with standard PCO neck finishes that align with globally traded closure formats.
Q3. How do the differences between single-stage and two-stage blow molding affect bottle quality when running lightweight eco-preforms for sustainable packaging lines?
Single-stage injection stretch blow molding machines process the resin from pellet to finished bottle without an intermediate cooling step, which keeps the preform's thermal history intact and can be advantageous for very complex bottle geometries. However, two stage blow molding offers a critical advantage for lightweight eco-preforms: the heating oven temperature profile can be tuned precisely to the thinner wall distribution of a lightweight preform, independently of preform production speed. This flexibility makes the two-step blow molding machine a preferred choice for brands transitioning to 15–20% lightweighted preforms, where the narrower process window demands more granular thermal control than a single-stage machine's combined injection-blow cycle typically allows.
Q4. Where can beverage manufacturers in South America find a reliable fully automatic blow moulding machine supplier that provides complete after-sales technical support?
Manufacturers in Colombia, Brazil, Chile, and across South America can source fully automatic blow moulding machine systems directly from specialist exporters who maintain regional distribution networks. When evaluating pet blowing machine manufacturers, key criteria should include: factory acceptance testing with documented bottle samples before shipment; availability of spare parts within the region to avoid long lead times; remote diagnostic capability via the machine's PLC network interface; and references from comparable installations in similar climatic and altitude conditions. For high-altitude sites — common in Colombia and the Andean region — it is essential to confirm that the recommended air compressor has been sized for reduced atmospheric density, as standard compressor ratings are typically stated at sea level.
Q5. When is it the right time to upgrade from a semi-automatic bottle molding machine to a fully automatic pet blow molding machine for a growing water bottling operation?
The transition from semi-automatic to fully automatic pet blow molding machine becomes economically justified when labour costs and production inefficiencies from manual preform loading exceed the annualised capital cost of automation. Practically, most bottling operations reach this inflection point at around 2,000–3,000 bph of required output, where a single semi-automatic machine requires two to three operators per shift and creates a bottleneck downstream of the filler. A fully automatic blow moulding machine like the ES-6C76, operating at 7,200 bph with a single operator-monitor, delivers a payback period typically under 30 months in volume-driven water bottling markets.
Editor: PXY
