About Shenglong Machinery
Zhoushan Shenglong Machiney Company is leading supplier of SCREW and BARREL in china,including designing,manufacturing and sales for these products,we can make any specification of extruder screw barreland injection molding screw barrel forHaitian,Demag,Engle,Nigrobossi,KMD,NPM,BOY,HUSKY, Nippon Steel, Toshiba, Nissei,Mitsubishi and etc. We also can supply all types of screw and barrel accordingto your different requirements.
What is our Screw and Barrel advantage:
First:Cretive in designs,ourdesinging team is very strong,since we have unique culture to motivate them,inorder to meet requirement,we work closely to our customer and market!
Second:We have 15 years' experience ofmanufacturing varied screws, barrels and spares.We are keeping improving ourproduction stytem day by day on the delievey,quality control,all the effortshave improved the customers satisfaction!
Third:We are located inChina's screw Town-Jintang,Town in zhoushan city,near to Ningbo Port andShanghai Port!
Finally,We assure the customer benefits,wesupply best quality and competitive price,also best customer service!
Shenglong SCREW Purpose:
To creat china famous brand,to build first-classenterprise!
Create the greatest value for ourcustomers!
PA Nylon screw barrel forinjection machineSpecification:
Screwdiameter:Φ20mm-Φ220mm
Mould clampingforce:25-38000KN Injection capacity:30-50000g
Mould clampingforce:25-38000KN Injection capacity:30-50000g
Screwcan be designed ccording to different plastic material and nozzle!
(wear-resistance corrosion- resistance, high temperature resistance, highpressure resistance)
As percustomers’ demand,we can supply below:
1:PMMAScrew,Bakelite Screw,PVC Screw,PA Nylon+GF Screw,PC Screw
2:All kinds ofaccessories, a plastic head, apron, shoot flange nuts,nozzles,end caps.pistonsetc
1:PMMAScrew,Bakelite Screw,PVC Screw,PA Nylon+GF Screw,PC Screw
2:All kinds ofaccessories, a plastic head, apron, shoot flange nuts,nozzles,end caps.pistonsetc
BimetallicScrew production method:
PlasmaAlloy Coating Spraying or Wc/Co Whole spray welding
BimetallicBarrel production method:Centrifugal Casting (Inlay Alloy)
The PTApowder plasma welding applies the positive and negative electrodes of arcwelding, allowing the welding path to be completely,welded with the basematerial.The minimum possibility of the welding path becoming less rigid fullyprevents the welding layer from peeling
off – therebyeffectively upgrading the life time of the screws.
off – therebyeffectively upgrading the life time of the screws.
OutstandingFeatures of Bimetallic Screw and Barrel:
Hardness HRC50-65 Outstandingcorrosion-resistance.
Hardness layer reaches 1.5 m/m thickness.Hardness doesnot decrease with depth.
Hardness does not decrease under normaltemperature.
Abrsion resistance / wear resistance on the hardened layer is2~3 times higher than that treated by conventional heat treatment.
Hardness HRC50-65 Outstandingcorrosion-resistance.
Hardness layer reaches 1.5 m/m thickness.Hardness doesnot decrease with depth.
Hardness does not decrease under normaltemperature.
Abrsion resistance / wear resistance on the hardened layer is2~3 times higher than that treated by conventional heat treatment.
Detailed Technical Information:
BaseMaterial | 1)38CrMoAlA(JISSACM645) 2)Cr12MOV(JIS SKD-11) 3)4Cr5MoSiV1(JIS SKD-61)4)42CrMo(AISI4140) |
Bimetallic Alloy Materials | 1)Fe-based alloy 2)Ni-based alloy/Deloro alloy 3)Co-based alloy4)NiCo-basedalloy 5)Tungsten carbide/Wolfram carbide |
Double-alloylevel | Level A- containing Tungsten of 40% Level B -containing tungsten of 25% Level C -containing tungsten of 9.5% |
SurfaceTreatment | Heat Treatment High Frequency Treatment Nitriding treatment(120 Hours) Depth of Nitrided Layer: 0.5-0.8mm Hardness of NitridedLayer: 900-1020Hv (HRC56°-65°) Hard Chrome Plating treatment: Thickness of HardChrome Plating Layer: 0.05-0.10mm Hardness of HardChrome Plating Layer: ≥950HV Nickel alloy plating.treatment: BimetallicBarrel/Cylinder: Centrifugal Casting (Inlay Alloy) Bimetallic Screw:Plasma Alloy Coating Spraying Depth of Bimetallic Layer: >2mm Hardness of Bimetallic Layer: HRC55°-72° |
Basicinformation | Roughness of thesurface:Ra0.4um Linearity of thescrew: ≤0.015mm Linear axislimit: ≤0.02mm Hardness afterHardening & Tempering: HB240-280 Fragility ofNitration:≤Two class |
MaterialApplication | 1)GeneralPlastics 2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc 3)PA + GF(GlassFiber) 4)Flame-resistantReinforced Plastics 5)ModifiedEngineering Plastics 6)All kinds ofMixed Recycled Material(in Scrap or Granule),etc |
GeneralTerms | Means oftransport: Ocean,Air,Express Productiontime: About 25 days after we receive the deposit and lead time willdifferent according to the order quantity! |
Ourproducts advantages | 1)High productivity 2)Wonderfulplasticizing 3) low energy consumption4)Wearable andDurable 5)Fast and On time delivery6)Best customerservice! |
Our Screwand Barrel processingproduction:
CustomerOrder--ProductDesign(CustomerDrawing)—ProductionFlowArrangement—MaterialProcurement—Hardening&Tempering—Drilling—RoughTurning—RoughThreadRolling(AlloySprayWelding)—Alignment—FineThreadRolling—Mixing—Alignment—HighFrequencyTreatment—Alignment—Polishing—Grinding—120HoursNitridingTreatment—AcidPiclking—Polishing—ChromePlating—O.D.Grinding—Packaging&Shipping!
Bimetallic Dia 140mm Injection Molding Screw
Bimetallic Dia140mm Injection Molding barrel
Bimetallic Dia 140mm Injection Molding Screw
Bimetallic Dia140mm Injection Molding barrel
