For good plasticizing effect, we have different designs of screw and barrel for extruder or injection to meet customer's demand.Our factory manufactures with high-quality material, applying the method of hardening and tempering and nitriding, thus it enjoys the characteristics of long working life, wear resistance, and anti corrosion. Besides, the technique of hard alloy spraying or chrome plating can be used on the working surface of screw, which will make it have better using effectiveness. We can produce for Haitian, Chenhsong, Demag, Engle, Nigrobossi, KMD, NPM, BOY, HUSKY, Nippon Steel, Toshiba, Nissei, Mitsubishi, CINCINNATI, BATTENFELD, KRUSSMAFFEI, BAUSANO, WEBER, AMUT and so on.
Extruder screw diameter: 15 - 300 MM
LD for extruder screw: 1:5 - 1:65
Extruder barrel OD: 20-500 MM
Melt blown fabric screw and barrel for masks
screw and barrel manufacturer
Base Material (steel)
38 CrMoAlA(JIS SACM645); 42 CrMo(AISI 4140);
Cr12MoV(JIS SKD-11); 4Cr5MoSiV1(JIS SKD-61)
Process ( hot treatment)
Nitriding treatment 72 hours
Hardness after hardening and tempering
Nitrided Case Depth
0.5 - 0.8 mm
Less than Grade 2
0.8-2.0mm for screw ; 1~3mm for barrel
Chromium plating Depth
Hardess of surface chromium-plating after Nitriding
1. Standard grade: 38CrMoAlA + nitriding 96 hours
2. Bimetallic grade: 38CrMoAlA + bimetallic alloy
3. TC-A grade: Tungsten carbide 35%
4. TC-B grade: Tungsten carbide 25%
5. TC-C grade: Tungsten carbide 15%
5)Various high quality alloy steels,According to different usage, the choose for alloy is different, some require for abrasion-resistant while some require for corrsion-resistant. For standard, we have Fe-based, Ni-based,W2Calloy,Tunsten alloy etc for choice.
6)The foreign material we used as following:
*Germanysteel, GH113 ,2250 ,2842 ,1.8509 ,1.442 ,1.6582 ,1.6523 ,1.2080,1.4542,
*USA steel, P20,420,L6,H13,W110,D3,A2,D6,O1,S1,M35,8620,3115,K52440
*Sweden steel, 718S,718H,S136,S136H,STAVAX,ASP-23,ASP-30
*Australia Steel, M202,M300,W302,K460,W300,K900,K100,W321
*Hardness steel, YG6X,YG 6A,YG 6,YG8N,YG8,YG8C,YG11C,YG 15,YT5,YT14,YT30
*Japan Steel, SKT 4,YXM 4,YXM 42,SNC 815,SK -3,SKS 3,and etc.
***Application:Rubber,various high glass fiber, mineral fiber and PPA,PPS, PA66, LCP,VO fire protection, ferrous power, magnetic powder and etc.
Spraying corrosion wear-resisting dual metal layers