Twin screw PET pelletizing extruder machine 500 kg/h granulator
After pretreatment, the PET fragments were then heated and dried at
higher temperatures to remove residual moisture. For example,
drying more than 6 hours in a drying box at 150 degrees C, the
water content in the debris is less than 0.05%, in order to avoid
the rapid hydrolysis of PET during the subsequent extrusion
granulation, which leads to a sharp decline in molecular weight and
a sharp drop in viscosity.
The role of pre-crystallization is to make PET fragments crystallized and increase their melting
temperature, so as to prevent PET fragmentation during heating and
drying. Pre crystallization can be carried out in a common drying
box or in a mechanical dryer similar to a high-speed mixer. The
latter relies on mechanical friction to heat up the material. This
method is faster in temperature rising and more favorable for
volatilization of water. If the drying box is pre-crystallized, the temperature of the drying box can be set to 120 or slightly
high until the PET fragments lose their transparency, the pre-crystallization process can be considered to be completed.
Twin screw extruder Models
|Rotate speed (rpm)||0-600||0-600||0-600||0-600||0-600||0-600|
Twin screw extruder adopts big brand parts, highly automatic
controlling system, which is easy to operate and stable quality.
This line has good mixing, dispersion and extrusion performance,
which will help make top-quality pellets.
The main components usually include:
Spiral Load feeder——Twin screw extruder——Electrical Control
System——Water Strand Auxiliary System
Shipping and Packing
Filling Modification equipment double screw extruder parallel twin
screw machine will be packed by wooden base plate, damp proof plastic lining, fully-closed
Deposit 40% by T/T in advance, delivery against payment of 60%
balance after qualified acceptance.
Before leaving factory, equipment should be tested by both parties.
Test material offered by buyer.
We will send 1-2 technicians for machine’s installation and
debugging according to customer’s requirement; the technician’s
board and lodging and the round-trip airplane ticket expense
undertakes by the buyer,additional service charge USD50.For each
technician/one day, estimate 5-7 working days
Nanjing GS-mach Extrusion Equipment Co.,Ltd
No.1 Shanghu Industrial Park,Jiangning Street, Jiangning
Mobile Phone: +86 18851021602
Whatsapp: +86 18851021602
Wechat: +86 18851021602