Gearboxes for co-rotating
twin-screw extruders

ZT RangeWith a transmissible torque density up to 14 Nm/cm3 per per shaft,
the gearboxes of the ZT RANGE are designed for a wide range of applications and requirements,
starting from the typical applications for revolutions of 300 to max 900 rpm. to wherelower revolution rates
from 25 to max 200 rpm (ZT2, ZT3 series).
The range is available for center distances from 24 mm to 200 mm.
On request, also bigger versions can be provided.

TST series – Due to those manufacturers who need to increase the power ratesof co-rotating twin-screw extruders, the TST (Twin Super Torque) series is provided with a torque distribution system, which is able to ensure a considerable increase of the output revs (up to 1800 rpm) and of transmissible torque density (up to 16 Nm/cm3 per shaft).
The dimensions of the gearboxes of the TST series currently have dimensions variable
that go from center distancesof 20 mm to 120 mm, however, at the moment, bigger sizes are planned.

TST – HD SERIES (High Density) – Able to support torque densities of more than 18 Nm/cm3 per shaft,
this new series is available in bigger sizes, with customized center distances.