Stretching frames – for stretching plastic films
Extruders Australia takes pride in presenting our cutting-edge Laboratory Line, meticulously crafted to cater to the dynamic needs of the modern laboratory landscape. Our Laboratory Line of products stands as a testament to innovation, boasting a compact and sturdy design that seamlessly integrates with the demands of laboratory spaces. Built with the laboratory environment in mind, our products ensure not only reliability but also the ease of transportation, reflecting our commitment to enhancing your operational efficiency. With our Laboratory Line, we offer you a tailored solution that embodies both functionality and versatility, empowering your pursuit of scientific excellence.
Stretching frames are used for biaxial stretching of plastic films. It is worth mentioning that these machines are especially designed for a film thickness of up to 3.5 mm and for stretching at temperature of up to 400°C.
Technical description
The basic component of the unit are clips. Each clip has a fixed lower part and a movable upper part. A special design enables an increase of the clamping force to approx. 800 N per Clip (at a gas pressure of 40 bar).
The clips are moved on guiding devices with edge rails. Roller bearings at the clip system as well as at the edge rails reduce the sliding force and allow higher stretching speeds and stretching forces.
Advantages
Film thickness of up to 3.5 mm
Temperatures of up to 450°C
Heated clips
Quick adjustment of the process parameters
Operating mode: axial, biaxial, simultaneous, sequential
Quick temperature change by infrared heating systems
Application
Product development
Control
The touch screen control allows the programming of different stretching sequences with the possibility to additionally consider heating and cooling cycles. This allows an exact duplication of all production processes.
Customers
Raw material manufacturers
Compounding and refining companies
Processing companies
Universities and institutes
Companies in the pharmaceutical sector
Product Specification
Parameters / Line | Stretcher 5-750 | Stretcher 7-750 | Stretcher 9-750 |
Number of Clips | 4 x 5 | 4 x 7 | 4 x 9 |
Max. stretching ratio | 715 mm / 65 mm = 11,0:1 | 715 mm / 90 mm = 7,9:1 | 715 mm / 115 mm = 6,2:1 |
Max. stretching speed | 1,0 m/sec | 1,0 m/sec | 1,0 m/sec |
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