Piston Rod – 45# 4130 Hard Chrome Plated, Induction Hardened Steel Bar, Ø[OD] x [Length]mm

Our piston rods are precision-manufactured from high-strength steel (45# / 4130) and undergo induction hardening followed by hard chrome plating, providing:

Our piston rods are precision-manufactured from high-strength steel (45# / 4130) and undergo induction hardening followed by hard chrome plating, providing:

·Excellent wear resistance
·Corrosion protection
·High surface hardness (HRC 58–62)
·Mirror-like finish for smooth piston travel

Designed for hydraulic and pneumatic cylinders, these rods ensure long service life, minimal friction, and reliable performance in demanding applications.

 Typical Steel Grades

·45# Carbon Steel – high strength, good machinability
·4130 Alloy Steel – chromium-molybdenum alloy, higher toughness and fatigue resistance

Other grades are available on request depending on application-specific requirements.

 Common Sizes (Diameter × Length)

·Ø20 mm × 500 mm
·Ø25 mm × 1000 mm
·Ø32 mm × 1500 mm
·Ø40 mm × 2000 mm
·Ø50 mm × 3000 mm

Custom diameters and lengths are available on request for both metric and imperial sizes.

 Technical Specifications

·Surface Treatment: Hard Chrome Plating, Ra ≤ 0.2 μm
·Hardness: HRC 58–62 (after induction hardening)
·Straightness: ≤ 0.05 mm/m
·Roundness: ≤ 0.01 mm
·Material: 45# / 4130 steel
·Application: Hydraulic & Pneumatic Cylinder Piston Rods

 Manufacturing Process

1. Precision Steel Bar Selection – 45# or 4130 alloy steel
2. Turning / Machining – achieving accurate diameter and surface preparation
3. Induction Hardening – increases surface hardness for wear resistance
4. Hard Chrome Plating – ensures corrosion protection and ultra-smooth finish
5. Grinding & Polishing – final dimensional accuracy and mirror finish
6. Straightening & Inspection – ensures straightness, roundness, and hardness compliance

 Key Features & Benefits

·High wear resistance due to induction hardening
·Corrosion protection with hard chrome plating
·High dimensional precision for cylinder assembly
·Mirror-like finish for smooth piston movement
·Available in custom diameters and lengths for any hydraulic or pneumatic application

 Applications

·Hydraulic cylinders for construction, agriculture, and industrial machinery
·Pneumatic cylinder rods for automation and robotics
·Mobile machinery, press machines, and lifting equipment
·Heavy-duty and high-pressure cylinders