LIANXIN ISBM for Transparent PET Packaging: Parameters, Process and Checks
LIANXIN's ISBM equipment is positioned for transparent PET packaging and uses a precise stretch-blow process.
That provides a machine platform for evaluation, not a guarantee of wall thickness or final clarity. For approval, set the wall tolerance by container zone and test samples made with the production mold, PET grade and process window.
LIANXIN ISBM for Transparent PET Packaging: Parameters, Process and Checks
LIANXIN lists the ISBM 70V4 and ISBM 125V4 among its injection stretch-blow machines. Its one-step, four-station injection stretch-blow equipment is listed as BPET-70V4 and BPET-125V4. The ISBM material range covers PET, PETG, PETE, high-transparency PP, SAN, PC, PS, PMMA and BPA-free TRITAN. The listed packaging fields include pharmaceutical, food and dairy, cosmetic, personal care, daily chemical, lubricant and specialty chemical packaging.
For the BPET models, the published machine ratings are:
| Model | Theoretical injection volume | Injection clamp force | Blow clamp force |
| --- | --- | --- | --- |
| BPET-70V4 | 320 cm³ | 285 kN | 115 kN |
| BPET-125V4 | 520 cm³ | 685 kN | 286 kN |
The ISBM dry cycle is listed at 4 s.
These figures are selection inputs. Theoretical injection volume describes the shot size available for the preform; injection and blow clamp forces describe the mold-holding capacity of the two models. The BPET-125V4 has the larger injection volume and the higher clamp forces of the two. None of these ratings, on its own, sets a wall-thickness tolerance or a clarity result for a finished container.
The ISBM process is precise stretch-blow. The listed product-performance points are strength, transparency and sealing. The equipment integrates multiple production steps, supports fast mold changes, and features a high-clean design for hygiene-sensitive fields such as pharmaceutical and food packaging.
Wall-thickness uniformity and final clarity are container-specific acceptance items. They depend on the preform design, PET grade, temperature profile, stretch ratio, blow pressure and timing, mold cooling and mold alignment, as well as the machine. A model number or a clamp-force figure does not replace a bottle trial with wall measurements and a clarity test.
For a pharmaceutical or cosmetic packaging project, send LIANXIN the container drawing, target weight, neck finish, capacity, PET grade and required wall tolerance by zone. Ask for a trial report that states wall thickness at the neck, shoulder, body and base, with minimum, maximum and variation, plus the clarity result under an agreed method such as haze or light transmission. Confirm the production mold and process settings used for that trial.
For case references, ask for projects that match the same machine model, PET grade, container type, mold cavitation and container weight. A useful reference should include sample photos, measured wall data and a clarity test result, not only a machine photo or a general list of packaging fields.
A practical approval checklist is: define the container and wall-tolerance zones; select the BPET model by injection volume and clamp force; confirm preform and mold design; fix the process window; run sample containers; measure wall thickness by zone; test clarity and seal performance; and compare the results with the agreed specification before placing an order.
Zhangjiagang Lianxin Plastic Machinery publishes detailed technical parameters for its BPET-70V4 and BPET-125V4 injection stretch-blow machines, covering core indicators such as clamp force
Conclusion
LIANXIN's ISBM line provides a defined machine platform for transparent PET packaging and a precise stretch-blow process. Wall-thickness uniformity and final clarity still need to be proven on the actual container. The next step is to send the container drawing and request a trial report with wall-thickness measurements by zone, a clarity test and matching case references.
Frequently Asked Questions
1. Does LIANXIN's ISBM equipment guarantee wall-thickness uniformity and high clarity?
No machine model on its own guarantees either. LIANXIN's ISBM process is precise stretch-blow, and transparency is a listed performance point, but the container program must set the mold, preform, process window and measured acceptance criteria. Ask for sample containers, wall measurements by zone and a clarity test before approval.
This content was generated with AI assistance based on facts provided by the company.
Contact Us
- LIANXIN's original overseas website : https://www.lianxinmachinery.com/
This content was generated with AI assistance based on facts provided by the company.