Product Details

Specifications

1.high quality and output conical twin screw barrel
2.Base Material: 38CrMoAlA;
3,Nitriding or bimetal
4.gurantee:5 years

high quality and output conical twin screw barrel

Specifications of standard twin conical screw and barrel:

25/53,35/77,45/90, 50/105,51/105, 55/110, 60/125,65/120,65/132,70/140,75/150,80/143, 80/156, 80/172, 90/184,92/188.

Advantages of Twin conical screw and barrel:

1.Advanced Nitriding Technology
2.Anti-corrosion and Wear-resisting Duplex Metal Spraying Technoloy

3. we uses special alloy powders being sprayed and welded on the screw's ridge,and uses

different alloy and welding methods for the screw of different functions.

Features:

Easy operation
Optimum performance
Durable
Low power consumption
Corrosion/wear resistance

conical twin screw barrel for pvc extrusion profile
Diameter	Φ15mm-Φ350mm	Designing	Screw structure and compression ratio can be designed according to different products &different mixtrues.
Materials	38CrMoAlA (JIS SACM645) SKD61	Application	pvc profile
Nitride Case Depth	0.5mm-0.8mm	Technology	1)Longer time Gas Nitriding treatment 2)special anti-wear & abrasion alloy (bimetallic) 3)tungsten carbide 4)cobalt base alloy 5)stainless steel 6)Gh113 nickel based alloy
Nitride Hardness	950-1020HV	Packing	Wrapped up by film in wooden
Nitride Brittleness	≤Grade One	Payment Term	T/T , L/C
Surface Roughness	Ra0.4um	Delivery Term	25 working days
Screw Straightness	0.015mm	Port Departure	Shanghai/Ningbo
Alloy Hardness	HRC58-62	Min. Order	1 set
Alloy Depth	0.5mm-0.8mm	Common Nitrided:2.5-4years Bimetallic: much longer lifetime.
Guarantee

If the screw diameter or l/d ratio is not fixed, please feel free to inform the products and mixture you need, we can select & design the matching cylinder screw by your requirement.

Technological Process:

Blanking→Rough Machining→Quenching & Tempering →Semi Finishing Machining→Finished Product→Detecting→Nitring/Alloy Processed →Finish Machining

Details:

Material for high quality conical twin screw and barrel for plastic extruder:

1)38CrMoALA(JIS SACM645)

2)42CrMo(JIS SCM440)

3)9Cr18MoV 4)CW6Mo5Cr4V2

Technical parameter for high quality conical twin screw and barrel for plastic extruder:

Screw diameter 12mm-500mm

Screw alignment 0.015mm

Nitride brittleness ≤Grade 1

Depth of nitride layer 0.5~0.8mm

Hardness of nitride Hv900-1020

Quenching and tempering HB240-280

Surface roughness 0.045mm

Performance and specification

1)We design our brand, screw and barrel .We make sure the course of processing smoothly.

2)With almost 16 years' experience in plastic machinery,we have a well quality control system.Screws are processed by high-precision special NC screw milling machines to ensure high consistency extruding performance. We try our best to lower the cost of your budget and supply high quality screw and barrel .The special design of distribution cainet enlarges thrust bearing and adopts original bearings, guaranteeing the long service life and the bearing of larger extrusion capacity.

3)With suitable moulds, our screw and barrel can make high quality soft PVCpipes, hard PVC pipes ,profiles,sheets,master batch and so on.

4)According to customer requirements , most reasonable screws and barrrels can be configured to achieve optimal plasticization and logistic quality.

5)Process :Laser coating Tungsten Carbide,PTA melt-welding alloy,centrifugal mould bimetallic alloy, advanced nitrogen oozes handicraft ,vacuum quenching ,Titanizing,Nickel plating and Chorme Plating.

The production of screw barrel type:

1.Injection screw barrel, injection Molding screw barrel,screw tips/screw nozzle,

2.Single screw barrel

3.Twin screw barrel

4.Twin Conical screw and barrel(Co-rotating,Counter)

5.Twin Parallel screw and barrel Co-rotating,Counter)

6.High wear Resistant screw and barrel

7.Screw barrel Assembly parts

8.Bimetallic Screw Barrel

9.Rubber screw barrel

10.Pin screw barrel

11.Force feed screw barrel