Screw barrel for pvc material. 1.Material:38CrMoAIA. 2.Nitriding treatment. 3.Easy wearing parts use anti-wear ally.

Screw barrel details:

1.screw barrel Material of screw:38CrMoAIA. 

2.screw barrel through Nitriding treatment,Surface hardness:HV>900.

3.screw barrel Nitriding depth:0.5~0.8mm. 

4.screw barrel Screw diameter:from 15mm to 300mm.

5.screw barrel Max length of screw:10000mm.

6.pvc screw barrel Material of barrel inside layer:Tungsten alloy ,Surface spraying,prolong life of screw.

7.Barrel Heating zone: Cast aluminum ring heater + Stainless steel shell + cooling fan.

8.Cooling device: Fan with air as the media to provide accurate temperature control. 

9.Barrel cooling method:Cylinder surface groove, set with brass, aluminum heating tank and inner wind circle, with oil cooling and air-cooling at the same time, more precise temperature control.

Use for pipe extrusion:

Model	SJW45/33	SJW60/33	SJW75/33	SJW90/33	SJW120/33	SJW150/33
Screw diameter(mm)	45	60	75	90	120	150
L/D	33:1	33:1	33:1	33:1	33:1	33:1

Use for pipe extrusion:

Model	SJW35/25	SJW45/25	SJW50/25	SJW65/25	SJW75/25	SJW80/25	SJW90/25	SJW105/25	SJW120/25	SJW150/25
Screw diameter(mm)	35	45	50	65	75	80	90	105	120	150
L/D	25:1	25:1	25:1	25:1	25:1	25:1	25:1	25:1	25:1	25:1

Machine and product pictures: 

Screw Barrel Screw Barrel HOT HOT for plastic machine !!