LabEx program · Built in Denmark

LabEx Blown Film Unit for the Extruder You Already Have

An independent blown film take-off and winding unit supplied without extruders. Connect it to a LabEx laboratory extruder, a Multi-X all-around extruder, or an extruder you already own to produce and test blown film.

Request a quotation → See the specifications

4 formatsMono, ABA, 3 and 5 layers

Ø25-70 mmDie insert range

10-250 µmFilm thickness

300-500 mmTake-off width

2 yearsGuarantee

Complete LabEx laboratory blown film unit with die head, calibrating basket, take-off and winder on a mobile frame

LabEx Blown Film Unit

Flexible by design

One film line, many extruders

The Blown Film Unit is the same film section used on our mono-layer, ABA and multilayer laboratory lines, but built as an independent unit with its own control system.

With LabEx extruders

Connects in line to LabEx laboratory extruders. The mechanical connection and operating interface are configured as part of the complete laboratory line.

With Multi-X extruders

Combine it with a Multi-X all-around extruder, which can also run pipes, profiles and flat film when it is not producing blown film.

With your existing extruder

An adapter and heated connection pipe connect the unit to an existing extruder. The connection heating and the Blown Film Unit are controlled from the unit’s panel, while the extruder normally retains its own controls.

Its own PLC and HMI

The unit is fully independent, with its own Schneider Electric PLC, touchscreen HMI, temperature and speed control, and safety system.

A practical and economical route into blown film

If you already have an extruder that you use for other applications, and you only need to test blown film from time to time, the Blown Film Unit is the shorter and more economical way to add that capability. Your extruder stays in use for everything else.

Die heads

Die heads for mono-layer, ABA, 3-layer and 5-layer film

The unit is prepared for LabEx die heads in mono-layer, ABA and 3-layer versions. Project-specific 5-layer configurations are available for advanced development work.

Mono-layer

Single material structures for basic film testing, material screening, teaching and narrow web film production.

ABA

Two extruders feeding a three-layer die head. The same material in both outer skins, with a different core for recycled content or additives.

Three-layer

Three independent layers for true co-extrusion work, with free choice of material and layer ratio in each layer.

Five-layer, project-specific

Barrier and functional structures, for development work on packaging films where each layer has a separate job.

Do you already have a die head?

In some cases an existing die head can be used on the unit. Send us the make, model and dimensions, and we will confirm whether it can be adapted.

Specifications

Main technical specifications

LabEx Blown Film Unit, grouped by machine section. The exact configuration depends on the die head and the extruder it is connected to.

Die head and heating

Die headLabEx die head in mono-layer, ABA, three-layer or project-specific five-layer version, made in PM 300 steel (DIN 1.2379), hard chrome plated or PVD-coated for long service life and smooth melt flow.
Die insertsPrepared for die inserts Ø25-70 mm. Delivered with a Ø40 mm die as standard; other sizes on request.
Film thickness and die gapFrom 10 to 250 microns. Die gap 1,0 mm as standard, other gaps available. Adjusting screws for profile optimisation.
Temperature controlCeramic heater bands, 3 heating zones per die head, PLC controlled.
ProtectionStainless steel perforated protection shield.

Film line

Air ringHigh-efficiency single-lip air ring with uniform 360° air flow and adjustable air volume. Internal and external diameter 100 / 350 mm, four inlet ports, aluminium body. Film widths from 50 to 300 mm.
Bubble coolingHigh air flow centrifugal turbo blower with AC motor controlled by a Schneider Electric inverter. Stainless steel air distributor and heat-resistant connection pipes.
Calibrating basket and A-frameStainless steel rollers on high-speed bearings, with one-point adjustment so that all rollers open and close at the same time.
Take-offNip roller assembly with a chromium-plated steel roller and a polyurethane-covered roller, geared AC motor with inverter control, and pneumatic opening and closing with a pressure regulator. Take-off width 300 mm as standard; 400 and 500 mm available.
WinderNon-contact winder as standard, with AC inverter control of tension and winding speed and an air-expanding shaft for 76 mm (3″) cores. Contact and double-shaft winders available.

Control, frame and electrics

ControlSchneider Electric PLC with touchscreen HMI for temperature, speed, tension and safety management, and for process visualisation.
ElectricsMains: 3 × 400 V AC + N + PE, 50 Hz; control voltage: 24 V DC. Nominal power depends on the die head configuration. Other mains voltages on request.
Standards and componentsIEC / DIN. Schneider Electric electrical components and PLC.
FrameRobust steel frame with four lockable wheels and four adjustable legs. Stainless steel top surface; turbo blower mounted inside the lower frame.
Optional equipmentScreen changers, melt pumps and feeding blocks, pressure sensors, high-capacity hopper loaders, gravimetric feeding systems, LED inspection light panels and a defect visualisation camera system.

Explore the Blown Film Unit

Machine details, die head, controls, winder and produced film.

Complete LabEx laboratory blown film unit with tower, take-off, winder and touchscreen control — The complete Blown Film Unit

Air ring, calibrating basket and film bubble on the LabEx laboratory blown film unit — Air ring and film bubble

Front view of the LabEx blown film unit die head, heater bands and cooling connections — Die head and cooling

Top view of the collapsing frame and guide rollers flattening the blown film bubble — Collapsing frame and rollers

Non-contact winder with air-expanding shaft and a finished laboratory blown film roll — Winder with film roll

Schneider Electric touchscreen HMI showing temperatures, screw speed and take-off speed — Touchscreen control

Touchscreen HMI mounted on the LabEx blown film unit next to the die head — HMI on the machine

Measuring the thickness of laboratory blown film with a mechanical film gauge — Film thickness control

Virgin, coloured and recycled polymer granules used for laboratory blown film testing — Materials for testing

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Built in Europe, and delivered with a two-year guarantee.

Designed and manufactured in Denmark with durable, serviceable European components. From the die head to the PLC control system, the unit is built for a long working life and easy maintenance.

Materials

Materials you can test

With the right die head and extruder, the unit handles standard, recycled and bio-based materials in real film production conditions.

LDPE LLDPE HDPE PP PA EVOH test blends Biodegradable and compostable bioplastics Recycled granules Masterbatch Functional additives

The materials that can be processed depend on the extruder and screw used, the die head configuration and the formulation. Tell us what you want to run and we will advise on the right setup.

Applications

Who uses the Blown Film Unit

Built for laboratories, development departments and technical schools that need real film production in a compact format.

Material development

Test new polymers, bio-based materials, recycled granules and additives under real film production conditions, with low material use.

Multilayer structures

Develop skin and core combinations: colour, slip and antiblock in the skins, recycled content or barrier and stiffness modifiers in the core.

Samples and small runs

Produce customer samples, prototypes and narrow web film with controlled layer ratios and repeatable settings.

Training and teaching

Show the principles of blown film extrusion clearly and safely, with quick changeovers and very low material consumption.

Trusted in the laboratory

Chosen by universities, research centres and manufacturers

Our laboratory equipment is used across Europe for material development, quality control, teaching and small-scale production.

Universities Research centres Film producers Recyclers Compounders

Already have an extruder?

Tell us the make and model of your extruder, the screw diameter, the maximum output and the dimensions of the outlet flange. We will confirm the adapter and prepare a proposal for the right blown film configuration.

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