Customized excavator linkage pin OEM 206-70-53143 bucket pin suitable for KOMATSU PC220
Raw material preparation
Material inspection: Purchase high-quality carbon structural steel and other steel materials that meet quality standards, check whether the hardness, chemical composition, metallographic structure and other indicators of the materials meet the requirements, and ensure the quality of raw materials.
Cutting: According to the size specifications of the connecting rod pin, use sawing machine, flame cutting machine or laser cutting machine and other equipment to cut the steel into appropriate billet length. The cutting size should take into account the subsequent processing allowance.
Mechanical processing
Rough processing: The forged billet needs to be rough processed. The outer circle and end face are rough-turned on the lathe, and the center hole is drilled, etc., leaving a processing allowance of 0.5-1mm for subsequent finishing. Rough processing can remove most of the allowance and improve processing efficiency.
Finishing: Use grinding machines and other equipment to grind the connecting rod pin to ensure that the outer circle size accuracy is within ±0.01mm and the surface roughness reaches Ra0.8-Ra1.6μm to meet the assembly and use requirements. At the same time, other processing procedures such as milling keyways and drilling may be required to ensure that the size and shape tolerance of each part meet the design standards.
Heat treatment
Quenching: The machined connecting rod pin is quenched by heating it to above the critical temperature, keeping it warm for a certain period of time and then cooling it rapidly. For example, oil cooling or water cooling is used to transform the structure of the steel, obtain strengthening phases such as martensite, and improve the hardness and strength of the connecting rod pin.
Tempering: The quenched connecting rod pin needs to be tempered to eliminate the internal stress of quenching, stabilize the structure and size, and improve the toughness. According to the product performance requirements, the appropriate tempering temperature and time are selected. The tempering temperature is generally between 550-650°C.
Surface treatment
Rust-proof treatment: In order to prevent the connecting rod pin from rusting during storage and use, electroplating, hot-dip galvanizing or blackening treatment are usually used to form a rust-proof protective film on its surface to improve corrosion resistance.
Lubrication treatment: Lubrication treatment is performed on the surface of the connecting rod pin, such as applying lubricating oil or using solid lubricating coating, which can reduce the friction coefficient, reduce wear, and improve its reliability and service life during operation.
FAQs
Q1: What is the typical lifespan of the Custom Steel Excavator Pin for Hitachi 200?
A1: Our hardened excavator pins are built for extended durability, offering high performance over time with proper maintenance.
Q2: Do you offer Custom Excavator Pins for other Hitachi models?
A2: Yes, we specialize in custom steel pins for a range of Hitachi models. Contact us to get the perfect match for your equipment.
Q3: How does the hardened steel pin shaft improve excavator performance?
A3: The hardened steel pin shaft enhances wear resistance and load-bearing capacity, improving performance in demanding construction and mining operations.
Q4: Can your Custom Excavator Pins be used for both construction and mining?
A4: Our custom steel pins are designed to handle heavy-duty tasks across industries such as construction, mining, and earth-moving.
Q5: How do I place a bulk order for the Custom Steel Excavator Pin?
A5: Get in touch with us for bulk orders, and we will provide a personalized quote and production timeline for your custom pin shafts.
Q6: What quality control measures do you implement for Custom Excavator Pins?
A6: Our custom pins go through rigorous quality control, ensuring strict adherence to specifications, material standards, and durability for optimal performance.
Q7: Can I choose specific materials for the Custom Steel Pin?
A7: Yes, we offer various materials such as 45C, 41Cr4, and 42CrMo4, allowing you to select the ideal material for your excavator pin requirements.
Q8: How can I ensure the Custom Steel Excavator Pin fits my Hitachi equipment perfectly?
A8: Our custom steel pins are made to precise dimensions, and we offer tailored solutions to guarantee a perfect fit for your Hitachi 200 excavator.
