Rubber Machine Screw barrel, rubber extrusion screw barrel, plastic machinery screw barrel, rubber screw
Specification:
Diameter of pin screw and barrel: Φ 75mm-Φ 200mm
Diameter of cold feed or hot feed screw and barrel: Φ 30mm-Φ 300 mm
L/D ratio: 12-18
Technical Information
Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)4Cr5MoSi V1 (JIS SKD-61)
4)9Cr18MOV
5)HPT
Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide
Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: >=950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm
Warranty and service: 1 year
Our advantages:
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly
Experienced manufacture, we will be the best choice.
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Base Material |
1)38CrMoAlA(JIS SACM645)
2)Cr12MOV(JIS SKD-11)
3)4Cr5MoSiV1(JIS SKD-61) 4)42CrMo(AISI 4140)
5)9Cr18MoV |
|
Bimetallic Alloy Materials |
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide |
|
Bimetallic Alloy level |
Level A - containing Tungsten of 40%
Level B - containing tungsten of 25%
Level C - containing tungsten of 9.5% |
|
Designing |
Screw structure and compression
ratio can be designed according
to different products & different
clamping force requirement. |
|
Treatment Technology |
1)Longer time Gas Nitriding treatment
2)special anti-wear & abrasion alloy (bimetallic)
3)tungsten carbide
4)cobalt base alloy
5)stainless steel
6)Gh113 nickel based alloy
Treatment
Nitriding treatment(>100 Hours)
Depth of Nitrided Layer: 0.5-0.8 mm
Hardness of Nitrided Layer: >950Hv
Hard Chrome Plating treatment:
Thickness of Hard Chrome Plating Layer: 0.03-0.08mm
Hardness of Hard Chrome Plating Layer: ≥950HV
Nickel alloy plating.treatment:
Bimetallic Barrel Centrifugal Casting (Inlay Alloy)
Bimetallic Screw: Plasma Alloy Coating Spraying
Depth of Bimetallic Layer: >2mm
Hardness of Bimetallic Layer: HRC55°-65° |
|
Material Application |
1)General Plastics
2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc
3)PA + GF(Glass Fiber)
4)Flame-resistant Reinforced Plastics
5)Modified Engineering Plastics
6)All kinds of Mixed Recycled Material(in Scrap or Granule),etc |
|
Basic Infomation |
Surface Roughness :Ra0.4um
Linearity of the screw: ≤0.015mm
Linear axis limit: ≤0.02mm
Hardness after Hardening & Tempering: HB260-300
Fragility of Nitration:≤Two grade
Screw Diameter: 14mm-Φ300*8000mm
Technical Index: 15g-25000gram
Clamping force: 25KN-35000KN |
|
General Terms |
Means of transport: Ocean,Air,Express
Production time : About 20 days after we receive the deposit and lead time will different according to the order quantity. |
|
Warranty period |
2-4years(Depends on the plastic raw materials)
Bimetallic: much longer lifetime. |
|
Competitive Edge |
1 . Long lifetime,low energy consumption.
2. Wonderful plasticizing
3. Top-quality bimetallic screw and barrel
4. High wear resistance, resistance to corrosion
5. Fast and On time delivery
6. Best customer after-sale service! |
Zhejiang Zhongyang Screw Manufacturing Co., Ltd is a professional and dedicated designer, manufacturer, rebuilder and distributor of screws, barrels and assembly parts for plastic and rubber machines.
With our business philosophy of "quality oriented and customers foremost", Zhongyang keeps improving to offer excellent products and services to customers. Our commitment to customer satisfaction is priority number one at ZHONGYAG.
Till now, we have served more than 100 customers from 41 different countries all over the world. And we are very confident we will have more and more customers because our teams always strive to complement and meet our customers' needs in all aspects.
You can depend on us for:
Working Attitude: Every employee at ZHONGYANG is a good team player. We have enthusiasm on our jobs and we do our jobs seriously and responsibly, every employee wants to do the best to contribute to our company's growth at ZHONGYANG.
Factory Strength---- We are located in Jintang town, Zhoushan city of Zhejiang provice. Our factory occupies 10, 000M2 and is well equipped with kinds of advanced CNC processing machines. With 12 years' industrial know-how and experience, we have grown to be a specialist in the industry. We have our own professional teams in the sales, design, production, inspection and customer service areas. And we are always ready to help you with your specific needs.
Quick Response---- Our sales team is well-trained with good qualifications and is passionate and ambitious, we respond quickly and efficiently.
Technical Capabilities ----- We have a group of experienced and creative engineers, they help to solve customers' technical problems with their expertise and they do excellent jobs in designing new screw and barrel to achieve superior performance of the screw and barrel.
Good Products ----- As an ISO certified enterprise since 2006, we established complete quality control system and step by step, we implement the system thoroughly from the first production process to final products now. Every production process in under strict inspection to ensure that only qualified products are sent to our customers.
After Service-----We archive every customer from the beginning of our cooperation and we will follow up till customers receive our products and trial them with no problem. If by any chance you meet any problem on our products, our after service team will work out solution efficiently. And we could send engineer to your place under necessary circumstance no matter you are in China or abroad.
Our every team will work closely with you to provide you with the best possible solutions in timely manner.
We believe you will get good user experience working with us. And we welcome the opportunity to serve your needs.
