Spline Housing Screw Barrel Spare Parts for Rubber Processing Machine

Product Description

Feeding unit:Specification 60mm-250mm
Material leakagerate≤0.05%
Extruding wave≤1%
Abrison rate ≤1m/3years
Company Introduction
We are specializing in producing screw and barrel for both pin-type cold-feed and hot-feed extruder. In the past 15 years, our company has risen to become one of most professional feed rubber screw and barrel producer in China with the most advanced technology.
Standard
Diameter:φ20-φ300mm
Ratio of length to diameter:L/D=15-55
Materials
38CrMoAIA/SACM645/SKD11/SKD61/42CrMo
Duplex stainless Steels
GH3#
Power Metallurgy Raw Material
Cold/Thermal Spray Hard Metal Process
Advanced Nitriding Process
Corrosion&Abrasion Resistance Bimetal Spraying Process

Technical Index

Product	Screw&Barrel
Tempering hardness	HB240-280
Hardness of nitrogen treatment	HV950-1000
Depth of nitrogen layer	0.55-0.70
Nitride brittleness	Less than grade 1
Surface roughness	Ra 0.4
Screw straightness	0.015mm
Hardness after nitride	≥900HV
Chromium-plating depth	0.05-0.10mm
Alloy hardness	HRC55-62
Alloy Depth	1.5-2.0mm

Production Process as below:
01 Blanking-02 Quenching and Tempering-03 RoughTurning-04 Detecting-05 Semi Finishing Turning-06 Aging Treatment-07 Rough Grinding
08 Crossed Thread-09 Milling Cutter Roove-10 Turning Thread Groove-11 Tempering-12 Polishing Thread Groove-13 Fine Gringding-14 Milling Keyway-15 Fitter-16 Detecting-17 Nitriding or Bimetallic Treatment-18 Cut Off Process Allowance-19 Polishing Thread Groove-20 Detecting

Our Service
Warranty and service: 1years


Our Advantages
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly

---

>> Polished Natural Carved Stone Yellow Ornament Honey Calcite Pumpkin Sculpture for Halloween
>> iron window grill design aluminum windows doors design factory directly price aluminum bay window
>> Resolution 2m Smart Security Lens Customized Camera Lens Drone Lens Vr Panoramic Lens Ultra Clear Lens Wide-Angle Lens Ipc Lens Fish Eye
>> Hot Sale Fashion Holiday Disposable Christmas Paper Round Plate Forming Machine
>> White And Black Free Standing Tree Hanging Bag Hat Jacket Metal Clothes Hanger Stand With Shoe Rack
>> Wholesale Hot Sale Customized Bonnell Spring Mattress with Zipper
>> Professional Plastic Injection Mold Manufacturing Hardware Mold Production Plastic Products Processing
>> Pneumatic slitting cutter holder pneumatic round blade holder cutter housing slitting guide bearing cutter 76 * 17 19 22
>> Lty-3200 Plastic Injection Molding Machine for Thermoplastic
>> Custom Logo Printed Waterproof Eco Friendly Recycle Durable Yellow Non Woven PVC Wig Hairpiece Periwig Packaging Cover Dustproof Storage Garment Bag with Zipper
>> Digital Meat Thermometer for Food in Oven Grill Kitchen, with 1 Stainless Steel Probe
>> Original Authentic Security Custom Hologram Sticker for Cosmetic Packs
>> Full-Auto Pet Bottle Blow Machine
>> Reverse Osmosis Desalination Plant for Sea Water and Brackish Water
>> 2022 hand grip ajustable household hand grip hand grip exercise
>> Taijia Split Type flow meter Ultrasonic Doppler water flowmeter
>> Track Chain Giant Excavators Hydraulic Diesel Crawler Digger 15 Ton 18 Ton 23 Ton Large Crawler Excavator with CE Approval
>> Rubber&PU Lining Fire Hose
>> Black Prophecy P Crossbow Bag with Shoulder Strap Arrow Holder Wyz15434
>> Car Vehicle parts Lining of rear wheel Auto body parts fender inner Lining of rear wheel for byd f3