Conical twin screw barrel for PVC/PP/XPS/PE
Specification:
45/90, 45/100, 50/105, 51/105, 55/110, 55/120, 58/124, 60/125, 65/120, 65/132, 68/143, 70/135, 70/140, 75/150, 80/143, 80/156, 92/188
Above are our standard specification, we also can customize for you
Screw structure and compression ratio can be designed according to different products and raw material.
Base Materials: | 1)38CrMoAlA(SACM 645) 2)42CrMo(AISI 4140) 3)Cr12MoV(SKD11) 4)4Cr5MoSiV1(SKD61) 5)9Cr18MoV 6)40Cr |
Bimetallic Alloy Materials: | 1)Fe-based alloy 2)Ni-based alloy 3)Co-based alloy 4)Tungsten carbide |
Processing Technology: | Heat treatment High-frequency quenching Nitriding treatment Hard-chrome electroplating Bimetallic alloy welding Bimetallic alloy centrifugal casting |
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 Hard-chrome plating hardness after nitriding: ≥950HV Chrome-plating layer depth: 0.025~0.10mm Bimetallic layer depth: 2 mm Bimetallic hardness: HRC50-65 |
Suitable Plastic Material: | PVC,SPVC,HPVC,PE,PP,XPS,ABS,PA,PC,POM,PMMA,PPO etc. |
Twin screw and barrel made: CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO, AMUT model spares. | |
We can manufacture all types of screws and barrels according to clients' requirement.
Conical twin screw featurs:
1:Conical twin screw cores water internal circulation series and screw cores oil cold outer cycle.
Screw&Cylinder also can be made:
CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO and AMUT model spares!
According to different material and plastic product to choose different compress rate and L/D!
Application:
1)PVC sheet extrusion line,From film to plate, from the wafer to the thick slices, calcium powder content more than 5% ;
2)PVC/PPR pipe extrusion line,the calcium powder 80%-120%,150%-200%,250%-300%;
3)PVC profile extrusion line;
4)PVC palletizing extrusion line,Transparent granulation (create particle good diaphaneity, not yellowing - no exhaust
machine barrel),grey granulation (particle good color and luster, full - machine barrel with exhaust)
5)PVC foam production line,PVC free foaming, crust foaming,half crust foaming;
6)PVC/PE wood plastic extrusion line.
