BPET One-Step Four-Station ISBM Machines
LIANXIN BPET-70V4 and BPET-125V4 use a one-step four-station process with both injection blow and injection stretch blow functions.
Injection, conditioning, stretch/blow forming and ejection are coordinated within one machine. Catalogue-listed materials include PET, PETG, PETE, high-transparent PP/PCTG, SAN, PC, PMMA, PS and BPA-free TRITAN. Material, bottle and mould suitability remain project-specific.
Catalogue model specifications
| Parameter | BPET-70V4 | BPET-125V4 |
|---|---:|---:|
| Screw diameter | 50 mm | 60 mm |
| Screw L/D | 25 | 25 |
| Theoretical injection volume | 320 cm³ | 520 cm³ |
| Injection clamping force | 285 kN | 685 kN |
| Blow clamping force | 115 kN | 286 kN |
| Chilled-water demand | 80 L/min | 80 L/min |
| Cooling-tower water | 200 L/min | 200 L/min |
| Rated drive power | 44 kW / 380 V | 65 kW / 380 V |
| Heater power | 8.9 kW / 220 V | 12.5 kW / 220 V |
| Oil tank | 460 L | 640 L |
| Machine dimensions | 4400 × 1910 × 2900 mm | 5300 × 2100 × 3100 mm |
| Machine weight | 5.1 t | 11.6 t |
| Maximum blow air | 3.5 MPa | 3.5 MPa |
| Running air | 1 MPa | 1 MPa |
Catalogue cavity and maximum bottle volume
| Cavities | 1 | 2 | 3 | 4 | 5 | 6 |
|---:|---:|---:|---:|---:|---:|---:|
| BPET-70V4 max volume | 2000 ml | 2000 ml | 1000 ml | 500 ml | 300 ml | 150 ml |
| Cavities | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|---:|
| BPET-125V4 max volume | 5000 ml | 3000 ml | 2000 ml | 1000 ml | 800 ml | 600 ml | 450 ml | 400 ml | 300 ml | 250 ml | 200 ml | 100 ml |
These figures are catalogue reference values, not an output guarantee. Bottle geometry, neck design, resin, wall distribution, mould layout, utilities and acceptance criteria determine the final configuration.
One-step and two-step process comparison
In the catalogue's one-step process, preform creation and bottle forming are completed in one machine. Compared with a separate preform-and-reheat route, this can reduce equipment, labor, space, intermediate handling, contamination and moisture exposure. The final choice must still be based on the bottle, material, production plan and validated project economics.
BPET systems can be reviewed for food, daily chemical, pharmaceutical, personal-care, lubricant and specialty-chemical packaging. Suitability for any contents or regulated use requires project trials and customer package validation.
Review matched moulds and auxiliaries, compare all products or request a BPET review.