Pinned Screw for Rubber Process Recycling Line

Product Description

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

---

>> High-Intensity LED Headlamp with Waterproof 18650 Battery for Camping and Fishing
>> Tc 90/10 45*45 133*72 Poplin Grey Woven Fabric for Pocketing Lining
>> Y35 Material Block Ferrite Barium Magnet 150X100X25 Permanent Magnet
>> Explosion Proof LED Mining Light Torch
>> QC12K Series CNC Control Hydraulic Swing Beam Shearing Machine (QC12K-4X4000)
>> Hot Sale Cheap Common Wire Coil Nail Making Machine For Wooden Iron Nail
>> Bernard integrated control module GAMX-2013C electronic locator power board
>> High Quality Microfiber Car Towel with High Water Absorb Quality
>> Scooter children two wheels two wheels swing dragon skateboard two wheels Vitality board Balance snake board boys
>> Factory Selling Automatic Quantitative Down Quilt Filling Machine
>> Stainless Steel Woven Metal Decorative Crimped Wire Mesh
>> CNC Machining Gears and OEM Service
>> NTCF22---ABB brandnew in stock
>> NBR Sealing Ring Factory with Good Price and Good Quality
>> ISO9001 & Ce Certificated Plastic Crusher / Rough Pulverizer
>> Hanging Basket, Wall Hanging Basket, Small Handkerchief, Rack Wyz28330
>> Polyresin Artistic Personality Roots Flower Pots
>> SINOBI Creative Man Watch Unique Design Model Stainless Steel Mesh Band Rotating Dial Quartz Watches Custom Logo Watches S9703G
>> Factory Supply Pp TPR Handle Grater Stainless Steel Butter Promotional Travel Knife Cheese
>> 19200 PCS Eggs Full Automatic Hatchery Setter Incubators Poultry Farming Solar Energy Hatchery Equipment for Duck Chicken Goose