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Subcategory · PP & protective film
Specialty Film Blowing Machines
Two specialist lines from the SJ family: twin-screw PP film machines for stiff packaging film, and 3-layer air bubble machines for protective cushioning film.
Definition
What are specialty film blowing machines?
Specialty film lines handle resins and structures beyond standard PE film. A twin-screw PP line melts PP at lower shear for stiff, glossy film used in garment and textile bags. An air bubble film line extrudes three layers — bubble, base and coating — to trap air pockets for protective packaging.
Specifications
Specialty range
| Parameter | Details |
|---|---|
| PP film machine | Twin screw 65 mm × 2 · 22 kW main motor · up to 100 kg/h · film width 200 – 1,000 mm (customizable) · 0.01 – 0.15 mm per layer |
| PP materials | PP / PE / CPE |
| 3-layer air bubble line | Bubble unit 55 kW (105 mm screw) · base unit 45 kW (95 mm) · coating unit 37 kW (90 mm) |
| Air bubble film | Max finished width 3,000 mm · max winding diameter 1,300 mm · extrusion uniformity ±5% · 190 kW total |
Selection guide
Specialty line vs use
| Line type | Capability | Best for | E-SHION model |
|---|---|---|---|
| PP film | Twin-screw extrusion | Garment bags, textile packaging, stiff film | PP film machine |
| Air bubble film | 3-layer bubble structure | Protective cushioning, e-commerce packaging | 3-layer air bubble machine |
How to choose
How to choose a specialty line
Define the final product
PP packaging film and bubble protective film use completely different line designs.
Set width and output
PP lines run 200–1,000 mm at up to 100 kg/h; bubble film lines reach 3,000 mm finished width.
Confirm power and layout
Both lines are high-power installations — check your facility's electrical supply before ordering.
Machines in this subcategory
Specialty Film Blowing Machines
Applications
Who uses specialty film
Garment & textile packaging
PP film for clothing bags and textile packaging.
Protective packaging
Bubble film for furniture, electronics and logistics.
E-commerce cushioning
Rolls of bubble film for packing stations.
Converters
Specialty film producers adding a second product line.
For the complete film-to-bag flow, see the Plastic Bag Production Line — from film blowing and printing to bag making and recycling.
Buyers ask
Frequently asked
questions
What can PP film be used for?
PP film is stiffer and glossier than PE film — common for garment bags, textile packaging and printed packaging film.
Which materials can the PP line run?
PP, PE and CPE, with twin 65 mm screws and output up to 100 kg/h.
How wide is the air bubble film line?
Finished width up to 3,000 mm, with a maximum winding diameter of 1,300 mm.
What are the three layers in bubble film?
A bubble layer that forms the air pockets, a base layer, and a coating layer — each with its own extruder.
What is the power requirement?
About 190 kW total for the 3-layer air bubble line; confirm your voltage and site power with our engineers.
Why choose E-SHION
Working with us
SJ series, factory-built
Film lines from the SJ family are built and tested in our Ruian facility.
CE-certified machinery
Export machines are CE certified for the EEA market.
Configured to your film
Width, thickness, winder and printing options are configured on request.
Verified supplier
Made-in-China verified supplier with SGS audit report (2024), plus CCPIT certification.
Fast response
Send your film recipe and output target — our engineers reply within 4 hours on business days.
Get your custom solution
Plan your film line
with our engineers
Tell our engineering team your film recipe, width and output target. We design and build machinery to match — average response time 4 hours.
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