Blow Molding Machine “Family” Overview: Choosing the Right Type Is Key!

As the core equipment for producing hollow plastic containers (bottles, drums, cans, etc.), there are many types of blow molding machines. Choosing the right type is essential to ensure production efficiency and quality!

01Classification by billet manufacturing method

LESHAN

01

Extrusion blow molding

The most common method! Extrude a plastic parison like squeezing toothpaste, and then inflate it into a mold while it's still hot. Advantages: Suitable for a wide range of materials (PE, PP, PVC, etc.), accommodates a large range of container sizes (from small medicine bottles to large chemical barrels), and has relatively low equipment costs. Leshan Intelligent's strength: Mature technology in the extrusion blow molding field with a wide range of machine models.

02Injection blow molding machine

First, use an injection molding machine to produce a precision preform with a threaded bottle neck, then transfer it to the blow molding station for expansion. Advantages: high product precision (especially at the bottle neck), uniform wall thickness, no flash, minimal material waste, suitable for small-diameter, high-requirement bottles (such as cosmetics and pharmaceutical bottles).

02By number of workstations

LESHAN

01Single station

One workstation completes mold closing, blowing, cooling, and mold opening for part removal. The structure is simple, suitable for small batches or large containers.

02

Multiple molds operate in a continuous cycle (such as extrusion-blow molding-cooling-picking), achieving extremely high efficiency! It is the mainstream choice. Leshan Intelligent highlights: multi-station machine models are well-designed, running stably and efficiently.

03By degree of automation

LESHAN

01Semi-automatic