Two Stage PVC Compound Extruding Machine

Product Description

The characteristics
1.The first stage is SHJ twin screw extruder without die.Through the combination of barrel and screw, the extruder can exert  its strong ability to make the thermo sensibility material like PVC melting, compounding,dispersing and decentralizing under the condition of no back pressure
2.The second stage is SJ single screw extruder.Because of the lower rotating speed, it can complete melting,compounding lengthways and forming srands steadily, avioding over heating.
     
Technical data:

Model		Screw diameter	L/D	Rotary rate	Motor power	Output
SP50-120	TSE-50	50.5mm	24-48	500r/min	37-45kw	200-350kg/h
	SJ120	120mm	7-20	65-85r/min	30-37kw
SP65-150	TSE-65	62.4mm	24-48	400-500r/min	55-75kw	350-550kg/h
	SJ150	150mm	7-20	65-85r/min	37-45kw
SP75-180	TSE-75	71mm	24-48	400-500r/min	90-110kw	500-650kg/h
	SJ180	180mm	7-20	65-85r/min	45-55kw
SP95-200	TSE-95	93mm	24-48	300r/min	160-220kw	500-1000kg/h
	SJ200	200mm	7-20	85r/min	90-110kw

 
Two stage air cooling extruders

Features:
Combine the high speed and extensive mixing of processing and the low speed, low temperature, and low shear of single screw processing;
Ideal for compounding of heat and shear-sensitive materials.
 
Application:
PVC compounds for cable, shoe sole, transparent container, and medical applications EVA shield cable compounds;
Carbon black master batches of PE, EVA, etc.

Detailed data for SP75-180:
 
1.Main extruder:TSE-75/500-110--32
1) Screw diameter: 71mm. L/D = 32
2) Main drive motor: AC 110Kw, Speed regulated by ABB transducer imported   from Switzerland.  
3) Screw rotary speed: 50~500rpm
4) The barrels are equipped with bimetallic liners (45#steel+α101), processing heat treatment. HRC=60~62. The material of screw elements is high-speed steel 38CrMoAlA, nitrogen treatment. HRC=58~60.
5).The 1st barrel is the main feeding vent, the 6th is for degassing,  9th is vacuum section , and the others are closed barrels.
6)Casting copper heaters for 2-3th barrels. The others are equipped with casting  aluminum heaters. All heating power: ~50kw.
The extruder figure:
Feeding                                           Vacuum 

1

2

3

4

5

6

7

8

Hydraulic screen changer  die section

7) Reducing and distributing gearbox:
  The gearbox reduces the motor speed to the speed of the screw shafts and distributes it to the two output shafts. This gearbox output torque can reach     4.8T/A3
    The gearbox consists of:
l Involute gear teeth couplings between the output shafts and screw shafts
l Integrated thrust bearing assembly, radial bearings of the output axis are NSK products 
l Bottom part of casing designed as oil sum
8) Soft water cools the barrels with condenser.
      Material of input and output pipes is stainless steel. 
      Solenoid valve: imported products. 
      Manual valve: stainless steel. 
      The water pump motor in the soft water system is 0.55kw. 
      The soft water is distilled water.
2.Single extruder SJ-180/85-90-22
1)180mm; L/D = 28, rotary speed is 6~65rpm.
2)Main drive motor: AC 90Kw. ABB transducer,.
3)The material of barrels and shafts is nitride steel (38CrMoAlA).
4)Water-cooling inside the core of shafts.
5)Casting aluminum heaters, All heating power: ~36kw
6Enlarged screen changer  , material through 72 hours' nitrogen treatment . The channel is short, with little melt left and easy to clean.
7)Tailor-made flange:connect the single and twin screw extruder.

Certification: