This set of screw barrel are according to customers'requests,we modified the L/D. Treatment:screw bimetallic,
barrel nitrided,the customer use this set of
screw barrel to produce
PVC bottles,could use more than 3 years. and the production is good.
So if you need screw barrel,for your specail requirements, such as you want big diameter of screw,but your machine is not very long enough, it's ok, contact us! We could design the screw and barrel.
But if your
plastic material are
not clear,or add recycled materials,or add glass fiber,or add CaCo3,or add some other clear materials,please contact us,our design deparment will design screw barrel according to your specail requirement.
And other popular material we are using:
42CrMo,JIS SCAM645,JIS SCM440,SKD61,SKD11,DC53,(SKD61,SKD11,DC53 from Japan)
We also have other quality raw materials:
1. Germanysteel, GH113 ,2250 ,2842 ,1.8509 ,1.442 ,1.6582 ,1.6523 ,1.2080,1.4542,
2. USA steel, P20,420,L6,H13,W110,D3,A2,D6,O1,S1,M35,8620,3115,K52440
3. Sweden steel, 718S,718H,S136,S136H,STAVAX,ASP-23,ASP-30
4. Australia Steel, M202,M300,W302,K460,W300,K900,K100,W321
5. Hardnesssteel, YG6X,YG 6A,YG 6,YG8N,YG8,YG8C,YG11C,YG 15,YT5,YT14,YT30
6. Japan Steel, SKT 4,YXM 4,YXM 42,SNC 815,SK -3,SKS 3,and etc.
Our Material Storage:
Screw barrel treatment:
Nitrided
Nitrided+chromium-plating
Bimetallic
Bimetallic+chromium-plating
QY-Grade A - containing Tungsten of 40%
QY-Grade B - containing tungsten of 25%
QY-Grade C - containing tungsten of 9.5%
QY-Grade A/B/C + chromium-plating
Technical parmeter
Nitride Case Depth | 0.5mm-0.8mm |
Nitride Hardness | 950-1150HV |
Nitride Brittleness | ≤Grade One |
Surface Roughness | Ra0.4um |
Screw Straightness | 0.015mm |
Alloy Hardness | HRC58-75 |
Bimetallic Thickness | 2-4mm |
Thickness of chromium | 0.15-0.2mm |
Our certificates:
ISO 9001:2008
SGS Certificate:
We have approved the certificate of ISO (GB/T 19001-2008/ISO 9001:2008)&SGS,and all our screw and barrel are strictly quality controled as ISO 9001:2008 International Quality System&SGS System.
Like Former Prime Minister Wen Jiabao said in 2000,We should not only keep the quality with the word,but also to lead the world.
"QUNYING" Brand believe that Quality is the life, reputation is the cornerstone of development!
Choose QUNYING.
That's your best choice!
Contact person: lillian
Skype:lillianyao0421
