Segment screw barrel for plastic machinery

Segment screw barrel for plastic machinery Screw elements for counter-rotating parallel twin screw extruder
Specification:
Parallel twin screw diameter: Φ 18-Φ 177mm
The building block screw consists of core spindle and several hollow screw segments which can be replaced easily for different materials. The mixing components adopts building block type, which can be mounted and replaced conveniently. Such design makes it possible to process several kinds of materials with one screw.  

Base Materials:	1)W6Mo5Cr4V2 2)38CrMoAlA(JIS SACM 645) 3)42CrMo(AISI 4140) 4)S45C
Bimetallic Alloy Materials:	1)Fe-based alloy 2)Ni-based alloy 3)Co-based alloy 4)Tungsten carbide
Processing Technology:	1)Heat treatment 2)Vacuum quenching 3)Nitriding treatment 4)Bimetallic alloy welding
Technical Parameter:	Nitrided layer depth:0.50-0.80mm Nitrided hardness: 900-1100HV Nitrided brittleness: Less than 2 level Surface roughness: Ra 0.4 Linearity of screw: 0.015mm Bimetallic layer depth: 2 mm Bimetallic hardness: HRC50-65

We can manufacture all types of screws and barrels according to clients’ requirement.   Products display: