Home/Machines/Blown Film Machines/Mono-Layer Blown Film Machines

Subcategory · Single-layer film

Mono-Layer Blown Film Machines

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

What is a mono-layer blown film machine?

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

Mono-layer SJ series range

ParameterDetails
ModelsSJ-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 thickness0.01 – 0.12 mm (SJ-FM-45) · 0.008 – 0.10 mm (SJ-50–65)
Max. output35 – 50 kg/h (SJ-FM-45) · 30 – 60 / 40 – 80 / 50 – 100 / 50 – 120 kg/h
ScrewΦ50 mm (SJ-FM-45) · 50 / 55 / 60 / 65 mm, L/D 30:1
MaterialsHDPE / LDPE / LLDPE
SJ series Servo winder Custom configuration

Selection guide

Which single-layer line fits your plant

Line typeCapabilityBest forE-SHION model
Small bag shop100 – 800 mm film, 35 – 50 kg/hCompact single-screw lineSJ-FM-45
Bag factory, mid volumeup to 800 – 1,000 mm, 40 – 100 kg/hSingle-screw line, 55 – 60 mmSJ-55/FM800 · SJ-60/FM1000
High-volume bag plantup to 1,200 mm, 50 – 120 kg/hSingle-screw line, 65 mmSJ-65/FM1200

How to choose

How to choose a mono-layer line

01

Set film width and thickness

Bag width and film gauge decide the die size and screw diameter — from 100 mm up to 1,200 mm folded.

02

Match output to your bag volume

Estimate daily film consumption; 30 – 120 kg/h covers small shops up to high-volume bag plants.

03

Plan the full line

Blown film, flexo printing and bag making can be combined into one production flow.

Machines in this subcategory

Mono-Layer Blown Film Machines

Applications

Who uses mono-layer film

01

Carrier & grocery bags

T-shirt, vest and shopping bag film from HDPE/LDPE.

HDPET-SHIRT FILM
02

Produce & packaging film

Thin film for fruit, vegetables and light packaging.

THIN FILMLLDPE
03

Lamination base

Base film for printing and lamination converters.

PRINT BASESJ SERIES
04

Small bag plants

A single compact line for factories entering bag production.

COMPACTSJ-FM-45

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

Which materials can be processed?

HDPE, LDPE and LLDPE film. The SJ-FM-45 is set up for HDPE/LDPE; the larger SJ models run the same resin family.

What film widths are available?

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.

What is the output range?

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.

What film thickness can be produced?

0.01–0.12 mm on the SJ-FM-45 and 0.008–0.10 mm on the SJ-50 to SJ-65 models.

Can printing be added?

Yes — flexo presses can run in line with the film line or as a separate pass before bag making.

Why choose E-SHION

Working with us

01

SJ series, factory-built

Film lines from the SJ family are built and tested in our Ruian facility.

02

CE-certified machinery

Export machines are CE certified for the EEA market.

03

Configured to your film

Width, thickness, winder and printing options are configured on request.

04

Verified supplier

Made-in-China verified supplier with SGS audit report (2024), plus CCPIT certification.

05

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.

Send Your Inquiry
Chat with us — usually replies in minutes