No matter whether sheets or plates, we always offer the ideal plastic calendering- and polishing-unit.

Our smoothing units are characterised by a solid/robust construction. With a simple pneumatic gap adjustment, film thicknesses from 100µm to 2500µm are no problem as standard. The servo-controlled drives ensure an optimal polishing result of the plastic calendering process and a consistent take-off at a line speed of up to 100m/min. The size and width of the calender-rollers can easily be adapted to your requirements.

Plastic calender-rollers used in a calendering process for plastic. The surfaces of the calendar-rollers are polished.fu Plastic calender-rollers used in a calendering process for plastic. The surfaces of the calendar-rollers are polished.

Weitere Produktinformationen

Inclined smoothing unit

Inclined smoothing unit

Our bestseller is the inclined smoothing unit. This plastic calender-roller arrangement covers the widest range of applications. With our experience, we have developed a flexible, user-friendly and at the same time robust smoothing unit that enables trouble-free and easy sheet production.

Horizontal smoothing unit

Horizontal smoothing unit

The advantage of our horizontal smoothing unit is that it can also process low-viscosity plastics without any problems. Thanks to the adjustable roller-frame, it is possible to place the third roller in the optimum smoothing position. It also impresses with its compact and user-friendly design.

Vertical smoothing unit

Vertical smoothing unit

A lot of development-work has also gone into the vertical Diamat plastic calendering unit. The result is a real masterpiece. This is particularly convincing due to the quick exchange of the smoothing / structure rollers. This technology is mainly used in plate production.

Air-knife/Electric rake

Air-knife/Electric rake

All our smoothing units can also be equipped with an air knife or electric rake at any time.

The constant control of temperature and material thicknesses ensures optimum results of the calendering process for plastic at all times.

With a Diamat smoothing unit, 24/7 production is a matter of course. We are particularly proud of the convincing quality, ease of maintenance and user-friendliness. With our experience and expertise, far beyond the standard, we can also be happy to design and build a smoothing unit to your requirements.

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The highly polished plastic calender-rollers of a plastic sheet production line or cast film extrusion machine have been opened. During the plastic calendering process they will be closed.

Of course we also offer special plastic calender-rollers for extrusion lamination and extrusion coating for PVC and other plastics.
Our machines for plastic calendaring processes can be used together with diamat plastic extruders or in a production line from an other manufacturer.

Extrudable plastics

Our plastic extruder machines can mix components to the gram and melt them at exactly the right temperature.

Therefore our plastic extruders are able to extrude a large variety of plastics including:

  • polypropylene (PP)
  • polyethylene (PE, also known as polyethene or polymethylene)
  • high-density polyethylene (PE-HD)
  • polyurethane (PU or PUR)
  • thermoplastic polyurethane (TUR)
  • polystyrene (PS)
  • acrylonitrile butadiene styrene (ABS)
  • ethylene vinyl alcohol (EVOH)

and various polyesters like polyethylene terephthalate (PET – including recycled flakes) or amorphous PET (A-PET).

Other components from diamat

Various plastic pellets and bottle flakes from white big bags are conveyed into an extruder.

Material handling

We supply the complete equipment for the best possible flexibility of mixing different materials. Read More

plastic dryer (or plastic resin dryer) with big bags containing pellets or PET-flakes used for (re-) crystallization of PET.

Crystallization and drying

The perfectly premixed and bulk density optimised material is conveyed to the crystallisation via a screw conveyor. Read More

Single screw plastics extrusion machine for co-extrusion of cast films built by diamat.

Plastic extruders

We count on the single-screw extrusion technology. With our long-developed and unique feed zone, up to 100% recycled plastic can be processed. Read More

4 plastic calendar-rollers for PVC-calendering (diamat calendering-process for plastic)

Calendering and polishing

Our smoothing- amd calendering-units are characterised by a solid/robust construction. With a simple pneumatic gap adjustment, film thicknesses from 100µm to 2500µm are no problem as standard. Read More

Extrusion coating lamination machine including a rubber roller for pressure and a metal roller for cooling and smoothing.

Extrusion lamination

Also in the lamination sector, Diamat can supply you with proven and reliable solutions. Read More

Plastic extrusion coating machine by diamat for PET- and PE-coating.

Extrusion coating machines

Especially in the PET sector, the films are often coated with diverse liquids. We at Diamat have made our goal to ensure optimal application behaviour. Read More

Diamat plastic slitting machine as part of a slitter and longitudinal cutting line cuts thin plastic foil (PET) into 3 separate lanes.

Cutting unit

Diamat is convincing with an excellent concept and is well known for long service lives. The solid and simple construction results in a machine which is resistant to malfunctions and 24/7 production is no longer a problem. Read More

Foil winding machine at the end of a plastic sheet production line.

Winding machines

Diamat Maschinenbau delivers the perfect plastic winding machines, whether stand-alone or integrated. Read More


We always find the right contact person for you!
Telephone: +49 (0)9851 / 57029-0

diamat Maschinenbau GmbH
Amperestraße 13
OT Sinbronn D-91550 Dinkelsbühl

Email for general request:
Email for service and support: