Blown film take-off unit

Intended use

The blown film take-off unit is used in combination with an extruder and a film blowing die head for simultaneous inflation, cooling, flattening, take-off and winding of an extruded film tube.

Blown film take-off unit

Comprehensive setting parameters:
Adaptable to different film dimensions and properties
User-friendly:
Working height, winding torque and cooling air adjustable via touch screen
Scalable concept:
Measure and control film width and analyze film quality with optional optional modules

You have a specific type of problem or need a special configuration?

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Efficient downstream processing of extruded film hoses

In blown film extrusion, you optimize your production conditions through the wide range of adjustment options of the blown film and take-off unit:

Adjust the tube diameter, flattened film width, film thickness and film diameter flexibly and reproducibly.

Check the so-called "frost limit" (the transition from the plastic to the solid state) by means of an adjustable annular gap of the film blowing head.

Support air and adjustable haul-off speed ensure optimum conditions for haul-off of the material.

A user-friendly touchscreen allows you to adjust the working height, winding torque and cooling air conveniently and precisely.

Extend optional functions and setting options as required.

General Information
For which materials is the blown film take-off unit applicable?
Thermoplastics
Thermoplastic elastomers
Thermoplastic biopolymers
Polyolefins
Engineering plastics, e.g. polyamide
Efficiency and control over all process stations
The blown film and take-off unit supports you in the field of blown film extrusion at all process stations:
Goods receipt and recipe development:

- when testing the processing characteristics

During production:

- Process control of your products
- Ensuring a stable production process and a constant product quality
Goods issue:

- End product control
- Ensuring compliance with specifications and the quality of the
finished product
How does the device work in conjunction with a Brabender laboratory extruder?

The plastic polymer exits the extruder via a ring die. The material flows out in the shape of a bubble.

The diameter of the formed bubble can be adjusted by the amount of inflation air supplied.

Through the film width control the bubble is guided upwards.

Subsequently, the material is flattened by collapsing frames and taken off by nip rolls.

The film is guided over the pulley and the guide rollers to the winder, which produces the finished film rolls.

Technical Data

Maximum height	3200 mm
Number of Nip rolls	2
Dimension of the Nip rolls	84 mm Ø, 321 mm long
Material of the Nip rolls	Driven roller: steel Compression roller: Rubber
Winder	Hard paper winding sleeve, 50 mm Ø * 300 mm long
Dimensions (H * B * T)	880 * 3200 * 978 mm
Mains connection	3 * 400 V, 50/60 Hz + N + PE, 16 A

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Blown film take-off unit: Exclusive Downloads & Information
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area the following contents:
Downloads
- Cheat sheet Blown film take-off unit
- Press release
Videos
- Product & Application videos
  Videos & Download package in MP4 format
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Blown film take-off unit: Live presentation at K 2019

Visit us: K 2019, Hall 10, Booth A22
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