extruder screw and barrel

1.over 18years experience for extruder screw and barrel 2.high quality 3.different design to make costomer's requirement

Material

 Alloy-Steel of High-quality

1)38CrMoAlA(JIS SACM645)

2)42CrMo(JIS SCM440)

3)SkD61

Technical  process

1. Heat treatment

1)nitriding treatment

2)High frequency quenching

3)Spray coating bimetallic-alloy

4)Vacuum quenching

2. Centrifugal casting

3. Alloy coating spraying

Specifications

1. Diameter: 15mm~300mm

2. Ratio of length to diameter:L/D=15~55

3.Tempering hardness:240~280HV

4.Nitride hardness:900~1020HV

5. Nitride layer thickness :0.5mm~0.8mm

6. Nitride brittleness:  ≤ 2grade

7.Surface roughness: Ra0.4μm

8. Screw straightness: 0.015mm

9. Max.length:≤10000mm

Material of barrel inside layer

tungsten alloy. Surface spraying, prolong life of screw.

Barrel type

For good plasticizing effect,we have different design of screw barrel to meet customer's demand. Gradual type,mutant type,wave type,barrier type,double screen type, shunt type,separation type,exhaust type, pin type, mixed type, double-head type,three-head type,multi head type etc.

Production showing

Our workshop 

Technical parameter

model	L/D	Output capacity (kg/h)	Screw rotation speed (rpm)	Driving motor (kw)	Center heigh (mm)
XWJS20	20:1	3-5	10-60	1.1/1.5/2.2	1000-1400
XWJS25	25:1	5-8	10-60	2.2/3.0/4.0	1000-1400
XWJS30	25:1	5-10	10-60	2.2/3.0/4.0	1000-1400
XWJS45	25-36:1	10-120	10-150	5.5-22	1000-1400
XWJS65	25-36:1	60-300	20-150	22-75	1000
XWJS75	25-36:1	200-450	20-150	30-132	1000
XWJS90	25-36:1	180-600	20-110	30-185	1000-1100
XWJS120	25-36:1	320-1000	20-90	75-280	1000-1250
XWJS150	25-36:1	400-1300	20-75	90-400	1000-1300

 Our exhibition: