Ningbo WeiWo Electromechanical Tech Co.,Ltd.
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 500 sets per day |
| Delivery Time | 15-25days after PO confirmed |
| Packaging Details | 10-50 PCS in one carton or plastic blister tray, outside wooden pallet or wooden box. |
| Outer Diameter | 20MM |
| Total Length | 350MM |
| OD of one end | M12 X 1.25 |
| OD of another end | M10 X 1.25 |
| Material | S 45 C |
| HRC | > 48 |
| Surface roughness | Rz0.2~0.4 / Ra0.1max |
| Salt spray | 48hrs - 120hours(Chromed) |
| Brand Name | WEIWO |
| Model Number | K30-50-2035 |
| Certification | IATF16949:2016 |
| Place of Origin | NINGBO |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 500 sets per day |
| Delivery Time | 15-25days after PO confirmed | Packaging Details | 10-50 PCS in one carton or plastic blister tray, outside wooden pallet or wooden box. |
| Outer Diameter | 20MM | Total Length | 350MM |
| OD of one end | M12 X 1.25 | OD of another end | M10 X 1.25 |
| Material | S 45 C | HRC | > 48 |
| Surface roughness | Rz0.2~0.4 / Ra0.1max | Salt spray | 48hrs - 120hours(Chromed) |
| Brand Name | WEIWO | Model Number | K30-50-2035 |
| Certification | IATF16949:2016 | Place of Origin | NINGBO |
| High Light | hydraulic piston rod ，hollow piston rod | ||
20mm HRC 48 Hollow Piston Rod With Chrome Plated straightness 0.05mm used in shocks
Descriptions of Chrome Plating Piston Rod for Shock Absorber
| Product Type | Shock Absorber Hollow Piston Rod |
| Material | Stainless steel, steel alloy, copper, brass, titanium steel |
| Machining method | Turning, Milling, Drilling, threading, stampling, punching |
Surface finish | Polishing, Chrome plating, zinc plating, blackening, Nickel plating, Electrophoresis, Anodization, Oxidation |
| Color | Metal colors available |
| OEM & ODM | Available |
| ROHS Compliance | Available |
| Outer Diameter | Ø20(-0.01/-0.04) |
| Total Length | 350mm |
| Steel Material | CK45/ ST52/ 20MnV6/ 42CrMo4/ 40Cr/ bearing steel/ stainless steel |
| Tolerance | ISO f7 |
| Chrome thickness | 20~30micron |
| Hardness of the chrome layer | 950 HV Min |
| Roughness | Ra 0.2micron (max) |
| Straightness | 0.2/1000mm |
| Yield Strength | ≥350 MPa |
| Tensile Strength | ≥580 MPa |
| Elongation | ≥ 15% |
| 1. Hard Chrome Plated |
| 2. Induction Hardened | |
| 3.Quenched & Tempered | |
| 4.Induction hardened with Q&T |
Manufacturing Main Process description:
1. Hydraulic Steel Raw Material Cutting
2. CNC Machining + additional broaching and milling operations
3. Induction Hardening
4. Chrome Plating
5. Dehydrogenation and Tempering
6. Polish and Superfinish Polish
7. 100% Inspection
8. Craft Boxes and Wooden Case Packaging
Chemical Composition
| Material | C% | Mn% | Si% | S% | P% | V% | Cr% |
| Ck45 | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | |
| ST52 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.04 | ≤0.04 | 0.02-0.15 | |
| 20MnV6 | 0.17-0.24 | 1.30-1.70 | 0.10-0.50 | ≤0.035 | ≤0.035 | 0.10-0.20 | ≤0.30 |
| 42CrMo4 | 0.38-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.07-0.12 | 0.90-1.20 |
| 40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.80-1.10 |
Mechanical Properties
| Material | T.S N/MM2 | Y.S N/MM2 | E%(MIN) | CHARPY | CONDITION |
| CK45 | 610 | 355 | 15 | >41J | NORMALIZE |
| CK45 | 800 | 630 | 20 | >41J | Q + T |
| ST52 | 500 | 355 | 22 | NORMALIZE | |
| 20MnV6 | 750 | 590 | 12 | >40J | NORMALIZE |
| 42CrMo4 | 980 | 850 | 14 | >47J | Q + T |
| 40Cr | 1000 | 800 | 10 | Q + T |
Description:
| Surface treatment | Blackening, polishing, anodize, chrome plating, zinc plating, nickel plating, grinding… |
| Quality Assurance | IATF16949:2016 certified/SGS/TUV |
| Drawing formats | Solid works, Pro/Engineer, AutoCAD, UG, PDF |
| Japan 5-axis TSUGAMI-B-038T CNC turing machine |
| Japan 4-axis GAMA DMN-650 machining center | |
| Cylindrical Bore Grinders | |
| Wire EDM | |
| Magnetic grinding machine/ grinding Vibration machining | |
| Oven | |
| Ultrasonic cleaning machine | |
| Vacuum packing machine | |
| VMS2.5d measuring machine |
| Japan Mitutoyo tool microscope | |
| Japan Mitutoyo digimatic micrometer | |
| Japan Mitutoyo hardness tester | |
| Japan Mitutoyo calipers | |
| Japan Mitutoyo dial indicator | |
| Japan Mitutoyo height measuring tool | |
| Japan Mitutoyo tubular inside micrometer | |
| Japan Marble platform | |
| Go No Go gauge | |
| Electronic digital display caliper Ring gauges | |
| Machinery; heavy duty equipment; electronic device; Auto spare parts; optical telecommunication… |
Advantage of Product
1)Professional & skilled, reliable.
2)One-stop total solution
3)ready stock goods with fast delivery
4)Customizable: Non-standard sizes are also available
5)Small quantity is acceptable
6)Cash back: Refund or replacement for any product faulty
Application:
Precision instruments, Surgical equipments, Automotive parts, Optical products, LED flash lights, Electronics parts, precise tools etc…
Picture:
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Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Seller
Year Established:
2010
Total Annual:
8,000,000.00-12,000,000.00
Employee Number:
100~150
Ecer Certification：
Active Member
Our company was set up in a beautiful city Ningbo, which is closed to Ningbo seaport and airport. Weiwo is a specialized company that is engaged in producing auto spare parts, designing and manufacturing electromechanical & machinery spare parts, hydraulic motor and hydraulic valves with differe... Our company was set up in a beautiful city Ningbo, which is closed to Ningbo seaport and airport. Weiwo is a specialized company that is engaged in producing auto spare parts, designing and manufacturing electromechanical & machinery spare parts, hydraulic motor and hydraulic valves with differe...
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