Page 64 - Plastics News May 2017

PRODUCT NEWS

ZAMBELLO counter-rotating twin-screw extruders

Parallel type versions: TST-H and TST- 2H. Both seriesoffer very high
performance rates.
Although the range of gearboxes for counter-rotatingtwin-
screw extruders used for medium, high and very TST- H series - With a transmissible torque
hightorques is already very wide, Zambello updates it densityup to 20 Nm/cm3 per shaft.
constantlyboth with new sizes of standard products and The gearboxes of this series are designed for
tailoredgearboxes for the exacting needs of customers. 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
NRB series - With a transmissible torque density ZC3gearboxes for conical twin-screw extruders.At the
upto 17 Nm/cm3 per shaft moment the new gearboxes are available inthree sizes,
which are suitable for extruders having screwdiameters of
The gearboxes of the NRB range have a horizontalshape 55 mm, 65 mm and 80 mm.The essential feature of these
(mounting position B3), which requires a connectionto gearboxes consists ofground conical gears according to
the electric motor by belts and pulleys. As a matter of AGMA 11 - DIN 3.Like the entire range of Zambello, also
fact, the reduction ratios available cover a ratio up to the gearboxesZC3 enable an extremely high transmissible
amaximum of i=25. torque
ZT3 series - With a transmissible torque density Examples of application:
upto 17 Nm/cm3 per shaft
Civil building items
The gearboxes of the ZT3 series have approximately PVC products (doors, windows, pipes)
thesame features as the NRB series, but have a vertical
shape(mounting position B7). In this case the connection Granulates
betweengearbox and electric motor is carried out by Petrochemical products
an elasticcoupling. Due to the possibility to mount the
electric motor inthe U arrangement, the final result is a ZAMINDIA (Zambello India Sales & Service Office)
very compact extruder.Reduction ratios available go from Mobile: +91 9925835500
i=14 to max. i=80. E-mail: msanandiya@zambelloindia.com
TST range C/602, Riddhi Tower, Nr. Lotus School, Jodhpur Gam Road,
Jodhpur,Satellite, Ahmedabad –380015 Gujarat.India.
The TST range (Twin Super Torque) isavailable in two

Plastics News | May 2017 64