Specifications

1.good quality low price our screw barrel
2.long life and good Plasticizing effect
3.high and stable output
4.good service

Product Name:  Chrome plating injection single screw and barrel with high quality

 

Steel material	38CrMoAlA(screw) 42CrMo(barrel)
Hardness after hardening &tempering	HB:260-290
Hardness &Tempering time	72 hours
Nitrided hardness	HV:950-1020
Nitrided time	120 hours
Depth of nitriding case	0.50-0.80mm
Nitrided Brittleness	less than grade 1
Surface Roughness	Ra:0.4um
surface hardness of chrome  plating after Nitriding	>HV900
Depth of chromium -plating	0.03-0.08mm
Alloy hardness	HRC:58-62
Alloy depth	2.0-3.0mm

 

 

2.Details for screw barrel for injection molding machine

• Diameter of Screw: 15-250mm
• Mould Clamping Force: 250-32000KN
• Shot Weight: 15-50000g
• Screw can be mated with different heads
• Barrel can be mated with different nozzles
• The compression ratio of the screw can be designed according to different products and mixtures

 3.Injection screw and barrel size:

Injection volume (g)	Screw Diameter X Length (mm)	barrel diameter X length (mm)
30-90	Φ30X900	Φ85X860
60-125	Φ35X910	Φ85X860
100-125	Φ38X935	Φ95X900
125-160	Φ40X980	Φ95X910
125-300	Φ42X1030	Φ105X880
250-400	Φ45X1210	Φ115X1165
300-500	Φ50X1300	Φ125X1260
450-600	Φ55X1335	Φ130X1320
500-700	Φ56X1350	Φ130X1350
500-700	Φ60X1380	Φ140X1350
650-800	Φ65X1415	Φ150X1420
700-1000	Φ70X1790	Φ160X1685
800-1250	Φ75X1825	Φ170X1725
1000-1500	Φ80X2000	Φ180X1805
1250-2000	Φ85X2300	Φ190X1900
2000-3000	Φ90X2700	Φ210X2000
2500-5000	Φ100X2600	Φ230X2405
3000-6000	Φ110X2600	Φ256X2590
4000-10000	Φ120X2800	Φ256X2800
6000-8000	Φ130X3010	Φ256X2970
8000-10000	Φ145X3010	Φ256X2970
10000-15000	Φ160X3500	Φ270-3200
13000-25000	Φ170X3415	Φ317X3380

 

4.Processing program for screw and barrel

1) Screw:

Cutting stell—Machining—Drill hole—Quenching&Tempering—Machining outside diameter—Milling screw arris—Heat treament—Milling screw arris accurately —polishing —grinding outside diameter—milling spline—Nitriding— polishing again—Inspecting&Packing

2) Barrel:

Cutting stell—Machining—Drilling hole—Rough machining—Hardening&Tempering

 —Machining again—Grinding inner hole—finish machining—milling feeding hole—

 Nitriding—grinding inner hole again—polishing—package

 

5.Screw barrel application for plastic injection molding machine 

 

1.Hrad Plastic polystyrene  PS.ABS.SAN.EPN 

2.Soft Plastic polystyrene   LDPE.HDPE.UHMPE.EVA
3.Polypropylene                  PP
4. PVC UPVC
5. Polyacrylic resin             PMMA
6.Polyacetal class              POM
7.Nylon class                      PA6.PA12.PA66.PAST
8.polyester class                PET PBT UP

 

6.Packaing &Shipping

Port	NingBo/Shanghai
Packing	screw barrel are wrapped in a layer of plasticfilm then will be fixed in a strong wooden case
Volume	0.5m3-5m3 one set
Delivery	20 working days after the deposit

 

 

7.Services

Jinsheng will go through all question with you!!!

 

8. Products show for vertical type screw and barrel