Calenders – laboratory calenders for different layer thicknesses Calendering, embossing, extrusion coating, laminating, smoothing,

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Laboratory calenders are used for the development of films, film compound systems and sheets with different layer thicknesses made of different polymer materials such as PVC, polyolefins, PU etc. The COLLIN calenders are available with roll diameters of 144 mm, 250 mm or larger. Custom-made machines, adapted to the process conditions are standard at COLLIN.

Two and three-roll calender for high-precision films
For the production of films with extremely low wall thickness tolerances. The gaps between the rolls can be measured or controlled with lowest tolerances and high measuring accuracy.

Laminating calender
COLLIN calenders are used for refining films and sheets by laminating or contact laminating. Complete lines can be designed for: take-off – pre-treatment – pre-heating – calendering – refining – laminating – cooling – cutting – winding

Refining calender
The smoothing calender is used for smoothing thick-walled films or sheets or for embossing, coating and laminating. A swivelling and height-adjustable group of three rolls allows the adaptation to all common processing technologies. Heating is realised either by hot water or oil. Moreover, there is an electric roll heating of up to 450°C.

Roll diameter

From 144 mm to 250 mm
On request, larger diameters are available

Advantages

Different operating modes possible
Easy retrofit to another operating mode
Quick roll change
2 speed levels
Highest rotation accuracy
Low wall thickness tolerances
2 or 3 rolls – swivelling and height adjustable
High precision

Materials

PVC
Polyolefins
PU
Polymeric carbonate
Numerous technical polymers

Application

Laboratory operation, test series, research & development
Production of special films – Upscaling
Calendering, laminating, smoothing, refining, extrusion coating

Control
The control includes a 10“touch screen (CMI 10), function keys, a data wheel and an emergency stop button. The control has an interface to the optionally available software Visual FECON.

Customers