Product Introduction
Hydraulic Cylinder Hollow Chrome Bar is a chrome-plated, hollow piston rod made from high-strength alloy steel. Its surface is precision-ground and hard-chrome plated for enhanced wear resistance and corrosion protection. This design allows it to withstand high pressure while reducing weight in hydraulic cylinders, widely used in construction machinery, automation equipment, and hydraulic systems for precise linear motion control.
Product Advantages
High-Strength Alloy Steel Core
The Hydraulic Cylinder Hollow Chrome Bar uses high-strength alloy steel as its core material, with hardness reaching HRC 58-62-far exceeding standard carbon steel (HRC 20-30). This high hardness ensures resistance to frequent high-pressure impacts in hydraulic systems, minimizing surface deformation and preventing bending or cracking. Ideal for extreme conditions like mining and heavy machinery.
Multi-Layer Chrome Plating for Durability
The surface features a 3-layer chrome plating process, with a total thickness of 50-80μm. A nickel base layer enhances adhesion, a high-density chromium middle layer (HV 900-1100) improves wear resistance by 40%, and a micro-cracked top layer reduces friction to 0.12-0.15. This ensures smooth operation even in abrasive environments, extending service life beyond 30,000 hours.
Nano-Sealing for Water & Corrosion Resistance
A nano-sealed surface reduces porosity to below 0.8% (vs. 3-5% in standard plating), blocking moisture and chemicals. Salt spray tests confirm 300% longer lifespan than standard chrome rods, making it ideal for marine and chemical applications.
Hollow Design for Strength & Weight Reduction
Precision cold-drawn hollow construction reduces weight by 18-22% while maintaining strength. The design improves stress distribution, increasing compressive strength to 800MPa (23% higher than solid rods), preventing burst failures under sudden
pressure spikes.
Tight Tolerances Reduce Seal Wear
With **±0.01mm diameter tolerance** (ISO 286 standard: ±0.03mm) and Ra≤0.1μm surface finish, the Hydraulic Cylinder Hollow Chrome Bar minimizes seal friction by 90%, cutting leakage risks and lowering maintenance costs by 35%.
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