One-Step Injection Stretch
Blow Molding Machines
Three steps — injection, stretching and blow moulding — completed continuously in one machine. No intermediate reheating. PET, PETG, PP, PC, Tritan, ABS, PLA. 50 ml to 20 L. 3-station to 6-station. CE certified, factory direct.
What Is One-Step ISBM
One Machine, Three Continuous Steps — Injection, Stretching and Blow Moulding
One-step Injection stretch blow moulding is a highly efficient plastic container molding process widely used in the production of high-precision, high-demand hollow plastic products such as baby bottles, water cups, medicine bottles, craft and special-shaped bottles, and cosmetic bottles made of PET, PETG, PP, PC, Tritan, PS, ABS or PLA. Its core feature is that the three steps of injection, stretching and blow moulding are completed continuously in the same equipment without intermediate steps, which greatly improves production efficiency and product stability.
The one-step ISBM machine is a new-generation production platform built for the blow moulding industry where high product quality is non-negotiable. It is suited to special-shaped bottles and containers with high appearance requirements. The entire production process involves no human hand contact with the product, which fully complies with GMP pharmaceutical packaging production standards. Standardised machine design with imported-brand mechanical components substantially improves reliability and stability.
Compared to two-step RSBM, the one-step process eliminates preform storage, transportation and secondary reheating, saving approximately 40% of energy. The stretching station orients material molecules biaxially, significantly improving compression resistance, barrier properties and transparency. If you require HDPE or PP bottle production without biaxial orientation, see our IBM Injection Blow Molding Machine range.
Working Principle
Four-Station Continuous Cycle — From Resin to Finished Bottle
The 3-station machine (HGY50-V3-EV) omits the independent heat-preservation station and moves directly from injection to stretch blow moulding. The 6-station machine (HGYS280-V6) adds a dedicated cooling station after blow moulding, extending in-mould cooling time and further improving wall-thickness uniformity.
Preform Injection
Plastic melt is injected around the core pin at the injection station. The bottle neck — including thread form and finish height — is dimensioned to closure-compatibility tolerance at this station. No subsequent trimming is required. Neck-diameter variation is typically held within plus or minus 0.05–0.10 mm.
Tail Cutting / Heat Preservation
The preform transfers to the heat-preservation station where the temperature field across the entire preform wall is equalised. Thorough thermal homogenisation at this stage is the prerequisite for uniform wall-thickness distribution in the blow moulding station. The 6-station machine benefits from a longer dwell time here.
Stretch Blow Moulding
The stretch rod extends the preform axially while high-pressure air at 2.0–3.5 MPa expands it radially, achieving simultaneous biaxial molecular orientation. This dual-axis stretch significantly improves compression resistance, gas barrier properties and optical clarity compared to injection blow moulding without stretch.
Bottle Take-Out
Finished bottles are automatically ejected and conveyed onto the discharge belt, which can be integrated directly with a downstream filling, capping and labelling line for continuous production. Zero waste is generated — no flash, no trim scrap, no edge material. The three-station machine completes all three actions simultaneously each cycle.
Core Advantage
Structural Advantages of the One-Step Injection Stretch Blow Molding Machine
The one-step ISBM machine offers product diversity — pharmaceutical vials, cosmetic flacons, baby bottles, water cups and special-shaped containers can all be produced on the same platform through mould changeover. These advantages are the result of more than twenty years of focused R&D at Ever Power HG.
Energy Efficient — 40% Saving vs. Two-Step Process
The one-step injection stretch blow moulding machine directly keeps the temperature of the preform until blowing, so there is no need for secondary heating of the preform. This reduces energy consumption by approximately 40% compared to two-step RSBM systems. Low energy consumption, low labour costs, small footprint and good product stability are the primary commercial advantages of this platform.
Excellent Performance — Biaxial Molecular Orientation
Stretching makes the material molecules oriented in two axes simultaneously. This biaxial orientation significantly improves the compression resistance, barrier properties and transparency of the finished bottle. Products manufactured on the EP-HGY series consistently achieve superior wall strength-to-weight ratios compared to extrusion blow moulded equivalents of the same resin weight.
High Precision and Product Stability
Full-process automation control reduces human error and is suitable for large-volume mass production. The entire production process involves no human hand contact with the product, meeting GMP pharmaceutical packaging production standards. This is a requirement for pharmaceutical vials, baby bottles and premium cosmetic containers where contamination control is a regulatory or brand-quality obligation.
High Material Utilization — Zero Scrap
Less waste material, environmental protection and low cost. Unlike extrusion blow moulding which generates 20–40% edge scrap per cycle and requires flash trimming, the one-step ISBM process produces zero waste — no flash, no gate trim waste, no edge scrap. The per-bottle material cost is therefore consistently lower, and there is no requirement for scrap-grinding and regrind management.
Machine Range
One-Step ISBM Machines — From Compact Three-Station to Large-Container Specialist
Select by station count, injection clamping force and target application. All models process PET and PETG as standard; full material compatibility details are on each product page. For a machine recommendation based on your bottle drawing and output target, contact our engineering team.
Full-Servo Three-Station Machine — Compact Precision Platform
The most compact platform in the EP-HGY range. Five servo control systems, 3.5 T machine weight, footprint 3,800 x 1,200 x 2,500 mm. Suited to cleanroom installation and small-volume precision bottle production. The entry point for pharmaceutical and high-end cosmetic ISBM lines.
Standard Four-Station Machines — ASB-12M Compatible
Two variants — hydraulic (V4) and full-servo (V4-EV) — at 150 KN injection and 200 KN blow clamping. Up to 8 cavities. Compatible with Japanese ASB-12M tooling, eliminating re-tooling costs for buyers with existing ASB-12M mould assets. The primary platform for cosmetics, pharmaceuticals and food and beverage production.
- EP-HGY150-V450 mm · 150 KN · 6 T · Hydraulic · 53.2 KW›
- EP-HGY150-V4-EV50 mm · 150 KN · 7 T · Full Servo · 102.8 KW›
High-Output Four-Station Machines — Up to 14 Cavities
Three 300 KN models covering standard round bottles (HGY200-V4), wide-mouth containers with AOKI-250 compatibility (HGY200-V4-B) and the large-platen high-output ASB-70DPH-compatible platform (HGY250-V4). The upper mould stroke on HGY200-V4-B extends to 600 mm, enabling wide-neck tooling that cannot fit on smaller machines.
- EP-HGY200-V450 mm · 300/200 KN · 13 T · Up to 12 Cavities›
- EP-HGY200-V4-B50 mm · 300/250 KN · 13 T · AOKI-250›
- EP-HGY250-V455 mm · 300/200 KN · 16 T · ASB-70DPH›
Dual-Row and Six-Station Machines — Maximum Output and Wall-Thickness Uniformity
The dual-row HGY250-V4-B delivers up to 28 cavities per cycle — the highest single-cycle output in the entire HGY range — optimised for small-volume high-throughput cosmetic and personal care bottle production. The six-station HGY280-V6 runs twin screws and twin injection units for superior wall-thickness uniformity in quality-critical medium-volume formats.
- EP-HGY250-V4-B60 mm · 300/250 KN · 16 T · Up to 28 Cavities›
- EP-HGYS280-V650 mm · 150/200 KN · 14 T · 6-Station Twin-Screw›
Large-Container Four-Station Machine — 5 L to 20 L Water Barrels
The largest, heaviest and strongest machine in the EP-HGY range — and the only model in the series specifically engineered for water barrel and large-volume industrial container production. Both injection and blow clamping forces reach 400 KN. The upper mould stroke of 1,070 mm — the largest in the series — accommodates 18.9 L and 20 L barrel tooling that no other model in the range can accept. Maximum single-bottle weight is 900 g.
Side-by-Side Specification
Full Range Comparison — One-Step Injection Stretch Blow Molding Machine Series
Key selection parameters across all nine models. All models process PET/PETG, include nano far-infrared energy-saving heating rings as standard, and ship with CE certification. Contact our engineering team for a model recommendation based on your bottle specification.
| Параметр | HGY50-V3-EV | HGY150-V4 | HGY150-V4-EV | HGY200-V4 | HGY200-V4-B | HGY250-V4 | HGY250-V4-B | HGYS280-V6 | HGY650-V4 |
|---|---|---|---|---|---|---|---|---|---|
| Station Configuration | 3-Station Full Servo | 4-Station Hydraulic | 4-Station Full Servo | 4-Station Hydraulic | 4-Station Hydraulic | 4-Station Hydraulic | 4-Station Dual-Row | 6-Station Twin-Screw | 4-Station Hydraulic |
| Injection Clamping Force (KN) | 50 | 150 | 150 | 300 | 300 | 300 | 300 | 150 | 400 |
| Blow Clamping Force (KN) | 100 | 200 | 200 | 200 | 250 | 200 | 250 | 200 | 400 |
| Screw Diameter (mm) | 40–55 | 40–60 | 40–55 | 40–60 | 40–60 | 50–60 | 50–60 | 40–60 | 50–60 |
| Motor Power (KW) | 34.8 | 43.2 | 102.8 | 49.2 | 49.2 | 67.7 | 67.7 | 43.2 | 75.7 |
| Total Power (KW) | 45.2 | 53.2 | 112.8 | 59.2 | 64.2 | 82.7 | 82.7 | 53.2 | 90.7 |
| Max. Bottle Volume | 2,500 ml | 2,500 ml | 2,500 ml | 2,500 ml | 2,500 ml | 2,500 ml | 1000 мл | 2,500 ml | 20 L |
| Reference Max. Cavities | 6 | 8 | 8 | 12 | 12 | 14 | 28 | 10 | 4 |
| Mould Compatibility | Standard | ASB-12M | ASB-12M | Standard | AOKI-250 | ASB-70DPH | Standard | Standard | Large Barrel |
| Machine Size LWH (mm) | 3800x1200x2500 | 4200x1400x2900 | 5200x1800x3300 | 4800x2000x3200 | 4800x2000x3800 | 6300x2400x3700 | 5200x2500x3800 | 5900x2600x3200 | 6100x2600x4200 |
| Machine Weight (T) | 3.5 | 6 | 7 | 13 | 13 | 16 | 16 | 14 | 28 |
Cavity counts are reference values. Actual figures depend on bottle geometry and neck finish design. Specifications subject to final factory documentation.
Products We Produce
One-Step ISBM Bottle Gallery
A representative sample of bottle types produced on the EP-HGY series — cosmetics, pharmaceuticals, food and beverage, baby products, daily chemical, wide-mouth jars, specialty shapes and large water barrels. Hover to pause.
Mould System
One-Step Injection Stretch Blow Moulding Tooling
Mould Compatibility and Construction
The ISBM tooling system consists of three matched components: the injection mould, the stretch rod assembly and the blow mould cavity. All three must be co-engineered for the target bottle geometry and the specific EP-HGY machine model. We manufacture complete tooling sets in-house and additionally support the following widely-used third-party mould systems, enabling buyers with existing tooling assets to avoid re-tooling costs when upgrading to an EP-HGY machine.
Injection mould bodies are machined from imported S136 high-strength alloy steel or 4Cr13 stainless steel with mirror-finish cavity surfaces. Blow mould bodies may use aluminium alloy for faster thermal cycling and extended service life. All tooling undergoes trial-moulding verification before delivery to ensure first-fit production from the first shift.
Hover over gallery to pause scrolling
ASB-12M (Nissei ASB — Japan)
Compatible models: EP-HGY150-V4 and EP-HGY150-V4-EV. The most widely deployed one-step ISBM mould system globally. Direct compatibility — no modification required. Lowest tooling transition cost for existing ASB-12M users upgrading machines.
AOKI-250 (Aoki Technical Laboratory — Japan)
Compatible model: EP-HGY200-V4-B. Wide-mouth container specialist. Neck diameter exceeding 60 mm. Direct compatibility, no modification required. Suited to cosmetic cream jars, health supplement wide-mouth bottles and food wide-mouth containers.
ASB-70DPH (Wide-Mouth Specialist)
Compatible model: EP-HGY250-V4. Supports both standard cylindrical bottles and wide-mouth containers from a single machine through mould changeover. Maximum production flexibility for multi-format lines.
Industry Applications
What One-Step ISBM Machines Produce — Eight Packaging Categories
The EP-HGY series covers pharmaceutical vials, cosmetic flacons, baby bottles, water cups, specialty-shaped bottles and large water barrels from one product platform. If your container specification is not shown below, contact our engineering team for a custom selection assessment.
Cosmetics and Personal Care
PETG serum flacons, lotion dispensers, cosmetic bottle sets. Neck-diameter tolerance held to plus or minus 0.05 mm. Full-servo EV series recommended for premium brands.
Pharmaceutical Packaging
GMP oral liquid vials, eye-drop bottles, nasal-spray containers. Fully compliant with GMP pharmaceutical packaging production standards. No human hand contact throughout the production process.
Baby and Infant Products
PC and Tritan baby bottles, BPA-free. High optical clarity, autoclave-safe, fully automated production with no human hand contact meeting the highest safety standards for infant feeding products.
Food and Beverage
PET beverage bottles, sauce bottles, lactic-acid drink bottles. Biaxial stretch delivers superior gas barrier properties and compression resistance, extending shelf life and reducing material weight at equivalent wall strength.
Daily Chemical
Shampoo bottles, body-wash bottles, fabric-conditioner bottles, hand-wash dispensers. 100–750 ml high-output configuration. High optical clarity. Suited to FMCG mass-production lines where per-bottle cost is the primary commercial driver.
Wide-Mouth Jars and Health Supplements
Cosmetic cream jars, protein powder containers, vitamin wide-mouth bottles, food condiment jars. Neck diameter exceeding 60 mm. AOKI-250 and ASB-70DPH mould compatibility available.
Specialty and Craft Bottles
Asymmetric bottles, art-glass-effect containers, gift packaging bottles, novelty craft containers. High dimensional repeatability across short production runs. Suited to multi-SKU lines requiring frequent mould changeover.
Water Barrels and Large Containers
5 L, 10 L, 18.9 L and 20 L drinking water barrels. PET in transparent or standard blue. 400 KN dual clamping. Maximum single-bottle weight 900 g. The only EP-HGY model capable of producing 18.9 L and 20 L barrel formats.
Core Components
Imported Standard Components — Every Injection Stretch Blow Molding Machine We Build
The one-step ISBM machine adopts standardised design with imported-brand mechanical components, substantially improving machine reliability and stability. The following core components are used consistently across the entire EP-HGY series, simplifying spare-parts management and ensuring a stable supply chain.
NSK — Japan
NSK (Japan) lead screws, precision grade C3, repeat positioning accuracy plus or minus 0.01 mm. Combined with the full-servo drive system, NSK lead screws deliver the fine positional control required for consistent neck-dimension accuracy across all stations.
Parker — USA
Parker (USA) high-pressure hydraulic valves, rated to the maximum working pressure of the blow-moulding clamping system. Fast response, reliable sealing, consistent pressure across cycles — the foundation of hydraulic-system repeatability on every EP-HGY model.
Yaskawa / Inovance / WEICHI
Turntable rotation uses a Japan Yaskawa servo motor with a Taiwan TSUNTIEN reducer, or a WEICHI servo motor with a Taiwan TSUNTIEN reducer. The machine control system uses the Inovance or MiRLE PLC, selectable at order.
Airtac
Airtac pneumatic cylinders on all auxiliary motion axes — take-out station, mould-open assists and ancillary movements. Standardised ports across all models mean that every EP-HGY shares the same cylinder specification, minimising the spare-parts inventory a buyer needs to maintain.
YUKEN — Taiwan
YUKEN (Taiwan) hydraulic directional and pressure control valves on all hydraulic-drive models — HGY150-V4, HGY200-V4, HGY200-V4-B, HGY250-V4, HGY250-V4-B, HGYS280-V6 and HGY650-V4. High control precision, long service life under sustained production loads.
Nano Far-Infrared Energy-Saving Ring
Screw and barrel heating uses nano far-infrared energy-saving heating rings. Compared to conventional resistance heating bands, the far-infrared rings achieve more uniform melt temperature distribution, reduce energy draw, and are the foundation of stable, consistent preform quality across long production runs. The hydraulic oil tube on HGY250 series, HGYS280-V6 and HGY650-V4 uses Italian-imported tubing for enhanced pressure resistance and temperature durability.
Technology Selection
IBM vs. ISBM vs. EBM — Choosing the Right Process for Your Bottle
Three blow moulding processes serve different resin families, bottle geometries and volume requirements. If you require HDPE, PP or PS bottle production without biaxial orientation, see our IBM Injection Blow Molding Machine range.
- HDPE / PP / PS / PCTG / EVA
- Zero flash, zero trim scrap
- Up to 30 cavities at 10 ml
- Neck formed in injection mould to closure tolerance — weight variation approx. 1%
- No biaxial stretch orientation in bottle wall
- Temperature-insensitive process, compact footprint, long mould life
- PET / PETG / PP / PC / Tritan / ABS / PLA
- Zero flash, zero scrap — 50 ml to 20 L
- Biaxial stretch — superior barrier properties, compression resistance and optical clarity
- 40% energy saving vs. two-step RSBM process
- GMP compliant — no human hand contact throughout production
- ASB-12M / AOKI-250 / ASB-70DPH compatible — max. 28 cavities, max. 20 L barrel
- HDPE / PP / PE — wide resin range
- 20–40% edge scrap generated per cycle — flash trimming required
- No biaxial molecular orientation — weight variation approx. 3%
- Neck finish inconsistent — gate trim required
- Wall thickness adjustable via parison programming
- Oval profiles and handle-grip containers supported
Trusted by Industry Leaders
Serving Global Packaging Brands Across Every Sector
After more than twenty years of manufacturing and sales, Ever Power HG has accumulated rich experience serving packaging production lines for globally recognised brands across six major categories.
Cosmetics and Personal Care
PROYA, C'ESTBON, Estee Lauder, Wal-Mart, Dasenlin and other leading cosmetic brands — custom ISBM machine configurations for premium bottle aesthetics and neck-precision requirements.
Food and Beverage
HAITIAN, Luhua, Blue Moon and Walch — high-volume ISBM production lines for food condiments, cooking oil, beverages and daily-use household liquid packaging.
Pharmaceuticals
Shanliang Eye Drops and multiple pharmaceutical manufacturers — GMP-compliant ISBM production lines with full no-human-hand-contact process verification for regulated pharmaceutical containers.
Water and Large Containers
C'ESTBON and other bottled water brands — EP-HGY650-V4 large-barrel production lines covering the full 5 L to 20 L drinking water barrel format range.
Baby and Infant Products
Infant product manufacturers — PC and Tritan baby bottle ISBM lines, BPA-free materials, full-servo machines for the highest-precision production of feeding bottle formats.
Specialty and Craft Packaging
Craft bottle producers, gift packaging manufacturers and novelty container brands — small-batch multi-SKU ISBM configurations with rapid mould changeover capability.
Factory and Quality
Built and Tested at Our Own Factory — No Subcontracting
Ever Power HG operates a 20,000 m² purpose-built production facility in Guangdong Province. All EP-HGY one-step ISBM machines are developed, manufactured, assembled and quality-inspected in our own factory. No critical process is subcontracted.
Every machine completes a full factory acceptance test (FAT) before shipment: hydraulic pressure check, electrical insulation test, dry-cycle speed verification and mould-temperature control accuracy verification. CE compliance documentation, hydraulic circuit drawings, electrical schematics, an operator and maintenance manual and a recommended spare-parts list ship with every machine.
We adhere to the enterprise development principles of self-reliance, integrity, pragmatism, innovation and responsibility, building a complete supply chain for blow moulding machine production — giving life to machines with solid, stable and energy-saving elements to provide one-stop service.
After-Sales Service
Support for Every ISBM Machine We Ship
Every machine ships with complete documentation and is backed by our own after-sales engineering team — not outsourced to regional distributors. We provide four service levels for every EP-HGY installation worldwide.
Installation and Commissioning
Our experienced senior engineers will be responsible not only for equipment installation but also for successful and stable production status and overall training. Engineers travel to your facility, complete machine installation, utility connection verification, mould commissioning, first-run parameter tuning and production sign-off. We do not leave until the line is producing in-specification bottles at rated output.
Preventive Maintenance Programme
To avoid machine wear and save maintenance cost, we have regular reminder service to advise preventive maintenance of machine and moulds. Periodic site visits inspect hydraulic pressures, mould-temperature control accuracy, turntable indexing position and wear components — before they become unplanned downtime events. Planned maintenance consistently costs less than unplanned repair.
Round-the-Clock Technical Hotline
Our service hotline is available all day 24/7. As long as your equipment has an emergency, please contact us. Technical support by telephone and video call covers fault diagnosis, process troubleshooting and emergency parameter guidance. Spare-parts inventory for all current EP-HGY models is maintained in stock and emergency dispatch is available on request.
Personalised Operator and Maintenance Training
In addition to normal installation technical training, we provide personalised training to help users understand machine operation, mould process parameters, mould changeover procedures, fault code diagnosis and the preventive maintenance schedule. Training documentation is included in the maintenance manual that ships with every machine.
Ready to Configure Your One-Step ISBM Machine?
Send us your bottle specification — volume, material, required cavity count, monthly output target and destination country. Our engineering team will respond within one business day with a machine recommendation, mould configuration and indicative pricing with no obligation.
