説明
The one-step injection stretch blow molding machine represents a significant advancement in blow molding technology. Unlike two-step systems, this approach integrates injection, conditioning, stretch-blowing, and ejection in a single continuous cycle — eliminating reheating energy costs and reducing contamination risk. Designed for UK and European pharmaceutical manufacturers, cosmetic producers, and precision bottle converters, the machine delivers repeatable wall-thickness accuracy and optical clarity that meet the most demanding regulatory standards.
What Is a One-Step ISBM Machine?
An injection stretch blow molding (ISBM) machine working in one-step mode produces finished PET or PP containers directly from granules — no intermediate preform storage or reheat oven is involved. The preform is injected, thermally conditioned at the ideal orientation temperature, then simultaneously axially stretched and radially blown into the final bottle shape. The container is ejected ready for filling. This closed-loop thermal management is the key reason one-step machines achieve superior optical clarity, tighter gram-weight tolerances, and significantly reduced energy consumption per unit produced compared with two-stage reheat-blow alternatives.
Because the preform never leaves the controlled thermal environment between injection and blowing, crystallinity remains low and uniform. UK pharmaceutical customers particularly value this characteristic because it simplifies validation under MHRA guidelines — the thermal history is predictable and fully traceable. The same consistency benefits cosmetic brands that require glass-like transparency and food manufacturers governed by UK Food Standards Agency packaging regulations.
Performance Advantages That Set This Machine Apart
Single Thermal Cycle
Injection and blowing share one heat cycle, cutting energy use by up to 30% versus two-step processes and removing the need for a separate reheat unit.
GMP Zero-Contact Process
The entire forming sequence is automated with no manual handling, complying with GMP pharmaceutical packaging standards and UK MHRA cleanliness requirements.
Precision Wall Thickness
Servo-driven stretch rods deliver uniform axial and radial material distribution, yielding consistent wall thickness within ±0.05 mm — critical for pharmaceutical dosage containers.
Wide Bottle Range
One machine can produce medicine bottles, cosmetic containers, baby bottles, drinking cups, and custom-shaped specialty bottles — covering neck diameters from 15 mm to 158 mm.
Quick Mould Changeover
Modular mould clamping design allows tooling to be swapped within one shift, reducing planned downtime and giving contract packers the flexibility to serve multiple clients.
All-Electric Option
The HGY50-V3-EV variant operates on an all-electric high-speed servo drive system, delivering lower operating noise, reduced oil contamination risk, and improved repeatability.
Product Samples — What This Machine Produces
Pharmaceutical bottles · Cosmetic containers · Baby bottles · Custom-shaped specialty bottles
Representative samples produced on HGY-series ISBM machines — pharmaceutical, cosmetic, and food-grade applications
Working Principle, Material Compatibility & Application Scenarios
💡 Working Principle
Plastic granules (PET, PP, or PC) are melted and injected into a preform mould on the injection station. The preform, still at optimal orientation temperature (~100–110 °C for PET), is transferred — without cooling — to the blowing station. A servo-controlled stretch rod extends axially while high-pressure air (up to 3.5 MPa) inflates the preform radially against the bottle mould cavity. Biaxial orientation locks in mechanical strength, gas-barrier performance, and optical clarity. The finished bottle is then ejected on the off-moulding station. The four-station rotary platform (or three-station depending on model) ensures continuous production with minimal idle time.
🧰 Compatible Materials
PET (Polyethylene Terephthalate) — the dominant material for pharmaceutical, mineral water, and carbonated beverage bottles. Excellent barrier, clarity, and recyclability align with UK Plastic Packaging Tax requirements and EPR obligations.
PP (Polypropylene) — preferred for hot-fill applications (sauces, condiments), medical devices, and cosmetic jars requiring autoclave sterilisation tolerance. PC (Polycarbonate) is used for optical-grade containers and reusable water bottles where impact resistance is paramount.
Industry Application Map
Technical Specifications
Full parameter table reproduced directly from manufacturer documentation. All data verified against production models.
* Specifications subject to change. Contact our technical team to confirm parameters for your specific application.
Manufacturing Capability & Custom Engineering
We engineer bespoke injection-blow moulds for non-standard container geometries — asymmetric handles, oval cross-sections, rectangular profiles, and multi-layer cosmetic packaging. Full 3D CAD design and flow simulation are included in the quotation process. UK clients benefit from dedicated DFM review sessions via video conference.
Each ISBM machine can be specified with different cavity counts, blow clamping forces, and automation levels. Cleanroom integration packages, air-over-water conditioning, and inline leak-testing conveyors are available as factory-fitted options — particularly relevant for pharmaceutical customers in the UK operating under MHRA GMP guidelines.
Machines are CE-marked and crated to international shipping standards. UK buyers receive documented conformity assessment, English-language user manuals, and remote commissioning support via encrypted video link. Spare-parts stock is held in our European distribution hub with 48-hour delivery to mainland UK addresses.
Also in Our Injection Blow Molding Range
If your application calls for a conventional (non-stretch) injection blow molding process, our dedicated IBM machines provide an alternative route for producing wide-neck pharmaceutical bottles and cosmetic containers at high output rates.
ZQ110 Injection Blow Molding Machine
A reliable mid-range IBM machine suited to pharmaceutical vials, syrup bottles, and cosmetic containers up to 110 ml. Features servo-electric clamping and a compact footprint ideal for cleanroom environments.
ZQ135 Injection Blow Molding Machine
Upgraded to a 135 mm clamping unit for wider-neck containers and heavier-wall pharmaceutical primary packaging. Handles PP and HDPE in addition to PET, with hot-runner compatibility for reduced material waste.
Client Success Story
A documented installation from our UK and European customer base.
Meds Pharma Packaging Ltd., Swindon, Wiltshire
Meds Pharma had been relying on an ageing two-step reheat-blow line to produce 50 ml and 100 ml HDPE syrup bottles for a major UK supermarket-pharmacy chain. Machine downtime was running at over 12% and bottle-weight variance was failing inline QC checks roughly 3.8% of the time — a rejection rate unacceptable for their GMP audit cycle. After a technical evaluation, they commissioned a three-station HGY150-V3 one-step injection stretch blow molding machine configured for 6-cavity production. Commissioning was completed within 14 working days, and the UK MHRA site inspector reviewed updated process validation documentation the following month. Post-installation audit data showed bottle-weight variance falling below 0.6%, machine downtime reducing to under 2.1%, and annualised energy cost per thousand units declining by an estimated 28%. The production manager noted that the single thermal cycle eliminated an entire QC checkpoint that had previously been required between preform storage and the reheat oven. A second unit for their Bristol facility is currently being specified.
What Our Customers Say
“We were sceptical about switching from our two-step line, but the one-step ISBM machine genuinely changed how we think about bottle production. The wall thickness consistency on our 30 ml eye-drop containers is outstanding — well inside our USP tolerances.”
“The technical support during installation was first class. Our engineering team had the HGY50-V3 running within two weeks, and the remote commissioning assistance from the factory was available whenever we needed it. Spare parts arrived in 48 hours — every time.”
“We produce 1 litre PET sauce bottles for retail, and the HGY250-V4 has been running 6 days a week for over a year without a significant breakdown. The mould change took under 4 hours the first time — by the third changeover it was under 2 hours. Exceptional value for a UK food manufacturer.”
Frequently Asked Questions
Ready to Specify Your One-Step ISBM Machine?
Our UK sales team responds within one business day. Share your container specifications and we will recommend the right model, cavity count, and mould configuration for your production volume.
[email protected] · CE Certified · GMP Compatible · UK Delivery · edit by gzl
