CK45 Chrome Plated Piston Rod 30-50μm Chrome Layer 7500MM
Chrome Piston Rod
Heavy Duty CK45 Hard Chrome Plated Rods | 7.5 Meters Extra-Long Precision Shafts (30-50μm Chrome Coating)
I. Technical Data
| Technical Item | Specifications & Standards |
| Material | CK45, 4140, 42CrMo4, ST52, Stainless Steel |
| Diameter Range | 16mm — 250 mm |
| Diameter Tolerance | ISO f7 |
| Surface Hardness | HRC 55 - 63 (Induction Hardened) |
| Chrome Layer Thickness | 20μm — 50μm+ (Customizable upon request) |
| Salt Spray Test | NSS 96 Hours (Up to 500H for specialized conditions) |
| Surface Roughness | Ra 0.2 - 0.4 μm (Mirror Polished) |
| Straightness | 0.2mm / M |
| Standard Length | 1,000 mm — 7500 mm |
II. Key Features
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Hardened Surface
Utilizing professional induction heat treatment, the surface hardness is stabilized at HRC 55-63. This provides exceptional wear resistance in extreme friction environments, significantly extending the full lifecycle of the hydraulic cylinder.
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High Precision
Strictly compliant with f7 tolerance and Ra 0.2-0.4 roughness standards. This ensures a perfect fit with seals, minimizing frictional resistance and effectively preventing system leakage.
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Superior Corrosion Resistance
The dense chrome layer formed by precision electroplating creates a durable antioxidant barrier against acidic mine water or marine salt spray, protecting the internal steel core.
III. Applications
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Mining Machinery: Boom cylinders for large excavators, deep-well hydraulic supports, and mining harvesters.
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Energy & Power: Offshore oilfield compensation systems, wind turbine hydraulic adjustments.
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Construction Machinery: Crane hydraulic systems, pile drivers, and tunnel boring machine (TBM) components.
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Automotive & Automation: High-performance engine piston components, precision transmissions for industrial robots.
V. International Export Packaging
Individual Protection: Each piston rod is equipped with an independent protective sleeve to prevent surface scratching during transit.
Dual-Layer Anti-Rust: Surfaces are coated with specialized anti-rust oil and hermetically sealed with vacuum-grade moisture-proof film.
Heavy-Duty Shipping: Packed in reinforced export-grade fumigated wooden cases with internal anti-shock supports to ensure "Zero Damage" during transoceanic shipping.
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f7 Tolerance Piston Rod
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HRC 55-60 Hardened Rod
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CK45 Chrome Plated Shaft
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90mm Large Diameter Chrome Rod
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Mirror Polished Ra 0.2 Rod
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Chrome Piston Rod
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Hard Chrome Plated Rod
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Hydraulic Cylinder Rod
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Precision Linear Shaft
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Induction Hardened Chrome Rod
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Mining Machinery Hydraulic Parts
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Heavy-Duty Excavator Piston Rod
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Oilfield Equipment Hydraulic Components
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Replacement Cylinder Rod for Mining
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Anti-corrosive Chrome Rod for Offshore
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.