Extrusion Lines  Manufacturers, Traders, Suppliers

Pellet geometry and pellet uniformity both within a batch as well as between batches have a decisive effect on the feed behavior in an extruder. This must be kept in mind in particular when processing pellets on a laboratory scale, since the screws usually have shallow flights.
Collin® pelletizers are characterized by their high precision and reproducible pellets. The ability to adjust blade clearance precisely and observe processing easily are especially noteworthy features.

Testing extruders for thermoplastics Different process lengths and screw geometries guarantee a wide range of applications. Degassing zones, exchangeable grooved bushes, stroke adjustment systems, etc. allow extremely variable use in the design of extrusion lines. As standard, all extruders are equipped with a microprocessor control, which is located in a swivelling housing above the extruder. Available versions: Screw Ø in mm: 16/20/25/30/45 Process lengths in L/D ratio: 10 to 40 Measuring extruders COLLIN laboratory extruders can be equipped with further measuring devices in addition to the standard display of speed, current consumption and barrel temperatures, such as: * Melt pressure over the length of the cylinder * Melt temperature * Torque * Screw back pressure * Viscosity via rheometric slot die Comprehensive data acquisition and visualization systems allow control of mono- and coextrusion lines. Rubber extruders For the processing of elastomers, rubber but also ceramic masses, extruders with modified design are supplied. Characteristic features are short process lengths, motor-driven feed rolls, special materials for screws and barrels. A modular system for the use of different process lengths enables the systematic development of elastomer compounds. Available versions: E Ø 30 x 12 D Type G E Ø 45 x 12 to 28 D Type G E Ø 40 x 10 D Type K

plastics industry / polymers etc. Rubber processing Ceramics industry

Coextrusion lines for the production of coiled breathing hoses

Co-extrusion line for the production of coiled breathing hoses or spiral hoses put into operation, which leads to a minimization of the turbulence of the breathing air and thus to a reduction of condensate and thus also of germs in the hoses. The main products are  hoses with an inner diameter of 15 and 19 mm.
The hose is made of PVC-w and the helix of PVC-h.
Other hose dimensions and material combinations are possible. The line consists of the two extruders KEP 38-25-S (PVC-w), KEP 30-25-S (PVC-h), the co-extrusion die, the calibrator, the 2-part cooling device (with adjustable inlet chute), the automatic cutting device and the hose deposit. The driven deposit belt allows automatic depositing and cutting of hoses up to 3.5 m length. Alternatively, the spiral hoses can also be wound. During production, haul-off speeds of more than 4 m/min were achieved;

Co-extrusion lines for the production of coiled breathing tubes for medical technology.