Page 58 - Plastics News June 2017

PRODUCT NEWS

ZAMBELLO counter-rotating twin-screw extruders

Parallel type ZC3gearboxes for conical twin-screw extruders.At the
moment the new gearboxes are available inthree sizes,
Although the range of gearboxes for counter-rotatingtwin-
screw extruders used for medium, high and very which are suitable for extruders having screwdiameters
hightorques is already very wide, Zambello updates it of 55 mm, 65 mm and 80 mm.The essential feature of
constantlyboth with new sizes of standard products and these gearboxes consists ofground conical gears
tailoredgearboxes for the exacting needs of customers. according to AGMA 11 - DIN 3.Like the entire range of
Zambello, also the gearboxesZC3 enable an extremely
NRB series - With a transmissible torque density high transmissible torque
upto 17 Nm/cm3 per shaft Examples of application:
The gearboxes of the NRB range have Civil building items, PVC products (doors, windows, pipes)
a horizontalshape (mounting position Granulates, Petrochemical products
B3), which requires a connectionto
the electric motor by belts and ZAMINDIA (Zambello India Sales & Service Office)
pulleys. As a matter of fact, the MANISH SANANDIYA / CEO
reduction ratios available cover a Mobile: +91 9925835500
ratio up to amaximum of i=25. E-mail: msanandiya@zambelloindia.com
ZT3 series - With a transmissible torque density B-703,Ratnakar Atelier, Balaji Restaurant Lane Road,
upto 17 Nm/cm3 per shaft
Nr. Prernatirth Derasar, Satellite, Ahemedabad.
The gearboxes of the ZT3 series have approximately Gujarat – India.380015
thesame features as the NRB series, but have a vertical
shape(mounting position B7). In this case the connection
betweengearbox and electric motor is carried out by
an elasticcoupling. Due to the possibility to mount the
electric motor inthe U arrangement, the final result is a
very compact extruder.Reduction ratios available go from
i=14 to max. i=80.
TST range

The TST range (Twin Super Torque) isavailable in two
versions: TST-H and TST- 2H. Both seriesoffer very high
performance rates.
TST- H series - With a transmissible torque
densityup to 20 Nm/cm3 per shaft.
The gearboxes of this series are designed for
exactingapplications, where a high torque is required,
which istransmitted by means of a single reversing unit.
Theconnection to the electric motor is obtained by means
ofan elastic joint.The reduction ratios available go from
i=14 to max. i=80.
TST- 2H series - With a transmissible torque
density up to 22.5 Nm/cm3 per shaft.
The gearboxes of the TST-2H series present the
highesttechnical level for which these are the best
worldwide forheavy-duty jobs.The transmission of the
torque is obtained by means ofa double reversing unit.
The reduction ratios available go from i=14 to max. i=80.
Conical type
As a completion of the range of gearboxes for
counterrotatingextruders, Zambello proposes the new

Plastics News | June 2017 58