Rui'an Yumin machine screw co, ltd is professionally makeing screw barrel, filter, mould, gearbox and gearbox. We have 20years history working in the field. Our screw is based on 38CrMoAlA, through 7days nitriding process. The hardness can reach HV950-1100. All process is done by ourselves.
1. Size: Screw diameter: Φ 20-Φ 500mm
Maximum screw length: 10000mm
Barrel inner bore diameter: Φ 500mm
2. Materail: A. 38crmoala in high quality
B. Alloy steel in high quality
3. Technology: A. Nitriding treatment
B. Alloy coating spraying
C. Heating treatment
D. Screw fully hardening
E. Vacuum quenching
F: Electroplate hard chrome
4. Technical parameter: A: Depth of nitrition layer: 0.6-0.8mm
B: Nitriding treatment for 7 day and night, surface hardness HV>900
C: Fragility of nitriding: Less than grade 1
D: Surface roughness: Ra0.4um
E: Streightness of screw: 0.015mm
F: Depth of bimetallic layer>2mm
G: Hardness of alloy platig: HRC 62-72
H: Surface of hardness of chrome coating layer: HRC 62-72
I: Thickness of chrome coating layer: 0.03-0.06mm
5. Application
We can design and manufacture various kinds of screw barrels according to the customer's requirement
What is the packaging?
1) Wooden case package
2) Plastic film package
3) Suitable to transportation
4) As buyer request
5) One piece into one package
Payment: T/T, Western union, moneyGram and so on.
Our office:
1 Our Strength: We have an experience of more than 20 years of manufacturing and designing Plastic machines, varied Screws and Barrels and spares. We concentrate on improving quality, updating design, enhancing service and after service.
2 Our products: Screws Barrels for Injection, Extrusion, and Blow Molding applications; Relevant accessories(such as die head, gearbox, filter screen changer and so on); Plastic processing machinery.
3 Location advantage: Located in -Ruian Town in Wenzhou City, near to Ningbo Port and Shanghai Port.
4 Market areas: Global sales network reaching South America, Eastern Europe, Southeast Asia, Africa, Oceania and the Middle East etc. Welcome to visit our company.
FAQ:
Q1: What's your biggest concern?
A: Q------qulity more than 20 years' expierence + professional high technology production
Team + strict product inspection = high qulity
P------price large scale production + full set of independent production = reasonable price
Q2: Guarantee time and after-sale?
A: One year guarantee time, after one year, we have professional after-sales department
More question, pls feel free to contact us!
| 1. We have long history and experience working in the field |
| 2. We have the most advanced equipments and technique in our industry |
| 3. We have professional engineers and staffs |
| 4. We have 100% quality ensure system and 24hours after-sale service system |
| 5. We own two lands of workshop, covering 5000cbms. |
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