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Bozhou Road, the industrial park of zhongyun, Jiaozhou, Qingdao, China.
Tel: 86-532-81126663
Fax: 86-532-81126661
SJSZ Series Plastic Conical Twin-screw Extruder
Model: SJSZ Series
Category: Plastic and Rubber Industry / Machinery for Processing Plastics / Plastic Extruders
Characteristics
Uses double screw working together, improves production efficiencyFUses assistant moulds to produce range of productsdFUses automatic operating system, saves up labor forceSpecifications: a Screw diameter range: 50 - 156mF Screw rotating speed range: 1 - 40rpm (according to requests)FMotor power range: 22 - 110kW (according to requests)FBarrel heating power range: 10 - 36kW (according to requests)
Specifications
SJSZ Series Conical Twin Screw Plastic Extruder
a.Features and Application:
The series Extruders Coordinated with the appropriate moulds and auxiliary machines can directly convert thermoplastic expecialy PVC powder into Pipe,plate sheet,film and profile,and also completed function of plastic modifying and powder material pelleting.
The extruders drivd by D.C motor,SCR controlled stepless speed regulation.It equiped with the overload protection and
stoppage alarmingsystem,And loaded with the vacuum exhaust and force feeding machine.
b.Structure parts
1. The screw
It’s the crucial part to complete the material feeding and plasticizing, when it rotating
in the machine barrel it cans plasticizing the powder plastic and push them to the
die, then embankment ,molten,Refine Mixed.
2. The machine barrel
The machine barrel is a part which can contain the plastic and screw, the internal
of its hole shaped like “∞”, it rubbed with the plastic and the screw directly.
3. The die connector
This part used to connect to the die, there is an electrical heater to connect with
the die (refer to the drawing to know the detail).
4. The drive installation
The driving system which under a special technical condition, make the screws
evenly rotated by the given torsion moment,to complete the plasticizing and feeding.
5. The gas exhaust system
For the sake of enhance the quality of the plastic products; there is a vent in the
middle of the machine barrel, by the vacuum pump can draw out the lower molecular
and the air,the water which mixed into the material.
6. The ration feeding device
Because of the material in the doublescrew extruding machine is feeding coercive,
and the number of the raw material should be mate with the extruder output. When
lack of the feeding material, can not only lead to low output but also affects the gas
exhausting, but when the material is excessive, will add a big burden to the machine,
the material will be overflow.
7. The machine truss
The truss is a steel component which is welded by steel panel and beam channel.
Computer control or conventional control is optional. According to customers’
requirements, most reasonable screw can be made so as to achieve best plasticity
state and material quality. The screw is made by high precision special digital
screw miller, extruding property can be highly harmonized. It has firstly introduced
advanced technique of producing screws with variable pitch and depth, so that the
material can be more softly sheared and cut. The distribution box is specially
designed, pull force bearing is fully imported, the drive life span can be prolonged.
It can bear larger extruding pressure.
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