• Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    We do business with each other for long time and will continue our cooperation. Quality partner!
  • Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    Alexiou Aris
    Good quality and competitive price, I'm sure we will go further and further!
  • Ningbo WeiWo Electromechanical Tech Co.,Ltd.
    Work together long time, we like friends each other, easy to get along with, very pleasant cooperation!
Contact Person : Leela
Phone Number : 86-13586885132
WhatsApp : +8613586885132

Chrome Plated HRC 48 Hollow Piston Rod piston rod cylinder 20um 950 HV

Place of Origin NINGBO
Brand Name WEIWO
Certification IATF16949
Model Number K25-50-1210-1
Minimum Order Quantity 150 sets
Price USD1.4 ~ 1.6 /set
Packaging Details 10-50 PCS in one carton or plastic blister tray, outside wooden pallet or wooden box.
Delivery Time 15-25days after PO confirmed
Payment Terms L/C, T/T, Western Union
Supply Ability 500 sets per day
Product Details
Outer Diameter 12.5MM Total Length 410MM
OD Of One End M8 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)
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20um hollow piston rod


HRC48 piston rod cylinder


950HV hollow piston rod

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Product Description

HRC 48 Hollow Mechanical Rod Shafts With Chrome Plated Thickness More Than 20 μm

Descriptions of Chrome Plating Mechanical Rod Shafts

Product Type Shafts
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 Ø12.5(-0.01/-0.03)
Total Length 270mm
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%

Supply condition

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

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


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

Equipment used

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
Ultrasonic cleaning machine
Vacuum packing machine

Inspection device

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

Industry used

Machinery; heavy duty equipment; electronic device; Auto spare parts; optical telecommunication…


Products we can produce:

roll Mandrel continuous casting roll Continuous casting roller A slender shaft Roller set
Cloth guide roller The straightening roll Mirror roll Pull roller masking bearing
The flange shaft Eccentric shaft To hole shaft Hydraulic shaft Large diameter shaft
Oil pump fittings Guide post Screw axis CNC milling machine shaft Solid steel shaft
Hollow shaft turboshaft The output shaft Linear optical axis Other shafts


Our Services

1). Drawing:
We can translate your original drawings, make manufacturing procedure, offer the best suggestions on the design.

2). Quality:
We have full set of quality control system to guarantee best product quality.
we can make different Item Testing Plan, Manufacturing procedure etc.

We have professional, qualified inspectors who will make sure that all the products are qualified.

Precision instruments, Surgical equipments, Automotive parts, Optical products, LED flash lights, Electronics parts, precise tools etc…

Chrome Plated HRC 48 Hollow Piston Rod piston rod cylinder 20um 950 HV 0