Chrome-plated induction hardened (HFH) hydraulic rods are a critical component of hydraulic cylinders, designed to withstand high mechanical loads and exposure to various chemicals during operation. The reliability and performance of a hydraulic system directly depend on the quality of the HFH hydraulic rod’s manufacturing or repair process. A high-quality HFH rod not only resists strong mechanical loads but also offers excellent wear resistance, ensuring long-lasting durability even in harsh working environments.
Characteristics of HFH Hydraulic Rods
The surface of HFH hydraulic rods is treated with high-frequency induction hardening, creating a hardened layer that protects against minor damage, scratches, and chrome layer chipping caused by the mechanical impact of dirt and other foreign particles. These rods are primarily used in construction, quarrying, and road-building special equipment, making them ideal for heavy-duty loads and high-frequency operational cycles.
The standard length for HFH hydraulic rods typically ranges from 5.5 to 6.5 meters. LLC “EASTAI” manufactures HDTV hydraulic rods in diameters ranging from 16 to 300 mm, with a standard diameter tolerance of f7. Customized rods with a tolerance of h6 can be produced upon request.
- Steel Grades: Sc 45, C50, 45MnV1, 42CrMo4
- Manufacturing Standard: EN 10083
Advantages of HFH Hydraulic Rods from LLC “EASTAI”
The production and technological company “EASTAI” manufactures hydraulic cylinder rods at its own facility, adhering strictly to the EN 10305-1 standard (DIN2391). Our HFH hydraulic rods offer the following distinct advantages:
- Direct Manufacturer Pricing: Offering the most competitive prices on the market.
- Quality Assurance: All products come with the necessary quality certificates.
- Rigorous Quality Control: Multi-stage quality inspections at every stage of production.
- Reasonable Production Lead Times: Timely delivery according to both catalog specifications and custom orders.
- Customization Options: Capability to manufacture lifting hydraulic cylinder rods and other types according to individual specifications.
Technical Specifications
Before being installed in a hydraulic cylinder, each HFH hydraulic rod undergoes mandatory testing to verify its stated operational properties. All products come with quality certificates that detail the chemical composition and the mechanical properties proven during testing.
LLC “EASTAI” supplies and sells HFH hydraulic rods that meet European quality standards. A wide range of product sizes is always available in our warehouse, and customization is also possible based on client needs.
The HFH chrome-plated hydraulic rods provided following specifications:
Manufacturing Standard: EN 10305-1 (DIN2391)
Technical Parameters
- Outer diameter tolerance: f7
- Chrome Plating Thickness:
- < Ø 20 = minimum 15 μm
- Ø 20 = minimum 20 μm
- Straightness: Max 0.25 mm/1000 mm
- Ovality: Within 1/2 of the ISO f7 tolerance
- Surface Roughness: Ra 0.20 μm maximum
- Chromium Hardness: HRC 66-69 (HV 0.1/HV 850-1000)
- Standard Lengths: 5.0-7.5 m
Chrome Plated Hydraulic Rods with High-Frequency Induction Hardening (HFH)
Chrome-plated rods with HFH hardening are primarily used in construction, quarry, and road-building specialized equipment. The induction hardened steel layer prevents minor damage, scratches, and chips to the chrome surface caused by mechanical impacts from dirt and other foreign particles.
Standard lengths for HFH rods range from 5.5 to 6.5 meters. LLC “EASTAI” manufactures HDTV rods in diameters from 16 to 300 mm, with a standard tolerance for diameter being f7. On request, it is possible to produce rods with a tolerance of h6.
- Steel Grades: Sc 45, C50, 45MnV1, 42CrMo4
- Manufacturing Standard: EN 10083
By adhering to these stringent production standards and processes, LLC “EASTAI” ensures that its HFH hydraulic rods deliver superior performance and durability across various industrial applications.
Depth of hardening depending on diameter
Diameter, mm | Quenching depth, mm |
16-20 | 1.0 + 0.5 |
>20-40 | 1.5 + 0.5 |
>40-80 | 2.0 + 0.5 |
>80-140 | 2.5 + 0.5 |
Hardness of the hardened layer
Steel grade | Hardness value |
CK45 | 0.1HVHV 580-660 |
C50 | 0.1HVHV 700-750 |
45MnV1 | 0.1HVHV620-750 |
42CrMo4 | 0.1HVHV620-750 |
Certificates
All supplied products come with quality certificates, ensuring they meet the highest standards.
Marking
Each product is marked with identification details in a specific sequence according to the following criteria
- Brand
- Type
- Material Grade
- Manufacturing Standard
- Heat Number
Packaging
Products are packaged in wooden crates when shipped via transport companies. For shipments by other means, packaging arrangements can be customized based on mutual agreement.
Additionally, we also offer hydraulic chrome-plated solid rods for purchase.
If this information is helpful to you, feel free to contact me at: jeff@east-ai.cn.