conical twin barrel and screw for plastic extruder

Model:	-
Brand:	shenglong
Origin:	Made In China
Category:	Industrial Supplies / Other Industrial Supplies
Label:	screw and barrel , conical twin screw , twin screw and barre
Price:	US $1000 / pc
Min. Order:	1 pc

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Product Description

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.

4.Bi-metallic screw&barrel can be provided for two-three times more lifespan than nitrided screw&barrel.


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 wpc profile, plate & sheet
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:1years Bimetallic: much longer lifetime.
Guarantee		Common Nitrided:1years Bimetallic: much longer lifetime.

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