Product Description
The hydraulic cylinder piston rod is a key transmission component that connects the piston and performs linear motion under hydraulic action. It is the core moving part that directly contacts the hydraulic oil and reciprocates within the cylinder barrel, converting hydraulic energy into mechanical work. The quality of the piston rod directly affects the service life, operational reliability, and sealing performance of the hydraulic cylinder.
Manufacturing Process and Materials
1. Raw Material Preparation: High-strength alloy steel round bars are selected.
2. Rough Machining/Straightening: The outer diameter is initially turned, ensuring the straightness of the material.
3. Heat Treatment: Quenching and high-temperature tempering are performed to achieve a combination of high strength and toughness in the rod body.
4. Finish Machining: Outer diameter grinding is performed to achieve precise dimensional tolerances and geometric accuracy.
5. Pre-plating Polishing: The surface is polished in preparation for electroplating.
6. Hard Chrome Plating: A thick and uniform layer of hard chrome is electroplated onto the surface.
7. Post-plating Polishing/Superfinishing: The chrome plating layer is finely polished to achieve the required surface finish (low roughness).
8. Cleaning and Inspection: After thorough cleaning, a comprehensive inspection is performed, including dimensions, hardness, roughness, straightness, and non-destructive testing (such as magnetic particle testing).
Main Features
1. High Strength and Wear Resistance: Piston rods are typically manufactured from high-strength steel and undergo special heat treatment processes, giving them excellent wear resistance and impact resistance.
2. Surface Treatment: To improve corrosion resistance and wear resistance, the surface of the piston rod is usually chrome-plated or coated with other surface treatments.
3. Precision Machining: Precision machining techniques ensure that the piston rod has high dimensional accuracy, a smooth surface, and good sealing performance.
4. Long Service Life: Due to high-quality materials and manufacturing processes, hydraulic piston rods have a long service life and stable performance.
Features
The function of a hydraulic cylinder piston rod is to transmit the force generated by hydraulic oil to the load moved by the hydraulic cylinder. As a critical component of the hydraulic cylinder, it must be designed to withstand the high stresses and forces generated during operation. Proper maintenance and regular inspections for signs of wear or damage are essential to ensure the hydraulic cylinder operates safely and reliably.
How to Choose the Right Hydraulic Cylinder Piston Rod Bar
1. Application Conditions: Load type (axial, lateral, impact), working speed, stroke.
2. Working Environment: Indoor, outdoor, humid, corrosive chemicals, high/low temperature, food-grade requirements.
3. Performance Requirements: Required thrust/pull force, wear resistance life, sealing requirements.
4. Dimensions and Connection Method: Rod diameter, length, thread specifications (internal/external thread).
5. Material and Process Standards: Select appropriate materials based on load and corrosion requirements, and confirm that heat treatment and chrome plating thickness meet industry or company standards.
Application areas
1. Construction machinery: such as excavators, bulldozers, etc.
2. Agricultural machinery: such as tractors, harvesters, etc.
3. Industrial equipment: such as hydraulic lifting platforms, hydraulic presses, etc.
4. Automotive industry: such as hydraulic braking systems, steering systems, etc.
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