Screw diameter12mm-500mm

Screw alignment0.015mm

Nitride brittleness≤Grade 1

Depth of nitride layer0.5~0.8mm

Hardness of nitrideHv900-1020

Quenching and tempering HB240-280

Surface roughness0.045mm

Performance andspecification

1)We design our brand, screw and barrel .Wemake sure the course of processing smoothly.

2)With almost 10 years' experience in plasticmachinery,we have a well quality control system.Screws are processed byhigh-precision special NC screw milling machines to ensure high consistencyextruding performance. We try our best to lower the cost of your budget andsupply high quality screw and barrel .The special design of distribution cainetenlarges thrust bearing and adopts original bearings, guaranteeing the longservice life and the bearing of larger extrusion capacity.

3)With suitable moulds, our screw and barrelcan make high quality soft PVCpipes, hard PVC pipes ,profiles,sheets,masterbatch and so on.

4)According to customer requirements , mostreasonable screws and barrrels can be configured to achieve optimalplasticization and logistic quality.

5)Process :Laser coating Tungsten Carbide,PTAmelt-welding alloy,centrifugal mouldbimetallicalloy, advanced nitrogen oozeshandicraft ,vacuum quenching ,Titanizing,Nickelplating and ChormePlating.



Co-rotating twin screws

130mm twin screw barrel