
Mini Film Blowing Machine
A compact SJ-FM-45 with 100–800 mm film width and 35–50 kg/h output — a practical first line for a small bag business.
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Subcategory · Single-layer film
SJ-series single-screw blown film lines for HDPE, LDPE and LLDPE film — from the compact SJ-FM-45 to the SJ-65/FM1200 for bag plants and packaging film producers.
Definition
A single-layer blown film line uses one extruder to melt polymer, forms a film bubble through the die and air ring, then cools, collapses and winds the film. It is the simplest and most common line for carrier bags, produce bags and general packaging film.
Specifications
| Parameter | Details |
|---|---|
| Models | SJ-FM-45 · SJ-50/FM600 · SJ-55/FM800 · SJ-60/FM1000 · SJ-65/FM1200 |
| Film width (folded) | 100 – 800 mm (SJ-FM-45) · up to 600 / 800 / 1000 / 1,200 mm (SJ-50–65) |
| Film thickness | 0.01 – 0.12 mm (SJ-FM-45) · 0.008 – 0.10 mm (SJ-50–65) |
| Max. output | 35 – 50 kg/h (SJ-FM-45) · 30 – 60 / 40 – 80 / 50 – 100 / 50 – 120 kg/h |
| Screw | Φ50 mm (SJ-FM-45) · 50 / 55 / 60 / 65 mm, L/D 30:1 |
| Materials | HDPE / LDPE / LLDPE |
Selection guide
| Line type | Capability | Best for | E-SHION model |
|---|---|---|---|
| Small bag shop | 100 – 800 mm film, 35 – 50 kg/h | Compact single-screw line | SJ-FM-45 |
| Bag factory, mid volume | up to 800 – 1,000 mm, 40 – 100 kg/h | Single-screw line, 55 – 60 mm | SJ-55/FM800 · SJ-60/FM1000 |
| High-volume bag plant | up to 1,200 mm, 50 – 120 kg/h | Single-screw line, 65 mm | SJ-65/FM1200 |
How to choose
Bag width and film gauge decide the die size and screw diameter — from 100 mm up to 1,200 mm folded.
Estimate daily film consumption; 30 – 120 kg/h covers small shops up to high-volume bag plants.
Blown film, flexo printing and bag making can be combined into one production flow.
Machines in this subcategory

A compact SJ-FM-45 with 100–800 mm film width and 35–50 kg/h output — a practical first line for a small bag business.
View machine →
Four SJ models from 50 to 65 mm screws cover folded widths up to 1,200 mm and outputs from 30 to 120 kg/h.
View machine →Applications
T-shirt, vest and shopping bag film from HDPE/LDPE.
Thin film for fruit, vegetables and light packaging.
Base film for printing and lamination converters.
A single compact line for factories entering bag production.
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
HDPE, LDPE and LLDPE film. The SJ-FM-45 is set up for HDPE/LDPE; the larger SJ models run the same resin family.
Folded widths from 100–800 mm on the SJ-FM-45 up to 600, 800, 1,000 or 1,200 mm on the SJ-50 to SJ-65 models.
From 35–50 kg/h on the SJ-FM-45 up to 50–120 kg/h on the SJ-65/FM1200, depending on film width and thickness.
0.01–0.12 mm on the SJ-FM-45 and 0.008–0.10 mm on the SJ-50 to SJ-65 models.
Yes — flexo presses can run in line with the film line or as a separate pass before bag making.
Why choose E-SHION
Film lines from the SJ family are built and tested in our Ruian facility.
Export machines are CE certified for the EEA market.
Width, thickness, winder and printing options are configured on request.
Made-in-China verified supplier with SGS audit report (2024), plus CCPIT certification.
Send your film recipe and output target — our engineers reply within 4 hours on business days.
Get your custom solution
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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