4443885 Heavy duty bushings Excavator Bucket Bushing Suitable for Hitachi 240/240-3/240-3G/330

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Metal materials

Alloy steel: such as 40Cr, etc., has high strength, hardness and wear resistance, can withstand the large pressure and impact of the bucket during excavation, and has good toughness to prevent brittle fracture of the bushing during use.

Bearing steel: such as GCr15, etc., has high hardness, high wear resistance, good dimensional stability and contact fatigue strength, can ensure that the bushing maintains precise size and shape during long-term use, and is suitable for working conditions with heavy loads, high speeds and frequent starts and stops.

4443885 Heavy duty bushings Excavator Bucket Bushing Suitable for Hitachi 240/240-3/240-3G/330

Material selection: According to the performance requirements of the product, select suitable metal materials, such as alloy steel, bronze, bearing steel, etc., to ensure that the quality and performance of the materials meet the standards.

Inspection: Strict inspection of the purchased raw materials, including chemical composition analysis, mechanical properties test, hardness test, etc., to ensure the quality of the raw materials.

Cutting: According to the size and shape requirements of the bushing, use sawing machines, cutting machines and other equipment to cut the raw materials into suitable blanks, and the cutting size should consider the processing allowance.

Finishing: Use high-precision lathes, grinders and other equipment for finishing to ensure the dimensional accuracy and surface roughness of the bushing. The machining accuracy of the inner hole and outer circle can be controlled within ±0.01mm, and the surface roughness reaches Ra0.8-Ra1.6μm.

Drilling and tapping: According to the design requirements, the mounting holes, oil holes, etc. are processed on the bushing, and tapping operations are performed to ensure the accuracy and quality of the thread.

Quenching: Heat the processed bushing to above the critical temperature, keep it warm for a certain period of time, and then cool it rapidly to make the metal structure change, thereby improving the hardness and strength of the bushing.

Tempering: The bushing will produce internal stress after quenching. Tempering treatment can eliminate the internal stress, stabilize the structure and size, improve the toughness, and prevent the bushing from cracking during use.

Phosphating: A layer of phosphate chemical conversion film is formed on the surface of the bushing through chemical and electrochemical reactions, which can improve the corrosion resistance, lubricity and wear resistance of the bushing. The thickness of the phosphate film is usually 1-10μm.

FAQs

Q1: What is the typical application for the High Quality Excavator Bucket Cylinder Upper Pin Shaft?

A1: This pin shaft is specifically designed for excavator bucket cylinders, suitable for high-demand tasks in construction, mining, and heavy machinery operations.

Q2: Can you customize the pin shaft for other machine models?

A2: Yes, we offer full customization services for pin shafts based on your specifications, ensuring compatibility with a wide range of machinery models.

Q3: How do you ensure the durability of your excavator pin shafts?

A3: We use advanced heat treatment processes and high-quality materials to enhance the hardness and wear resistance of the pin shafts, ensuring long-lasting performance.

Q4: What materials are used for manufacturing the pin shaft?

A4: Our pin shafts are made from premium alloys such as 45C, 42CrMo4, and 41Cr4, selected for their durability and ability to withstand heavy-duty use.

Q5: Do you provide after-sales support for your excavator pin shafts?

A5: Yes, we provide comprehensive after-sales support, including product guidance, warranty services, and troubleshooting assistance to ensure continued operation.

Q6: How do I place a custom order for the pin shaft?

A6: Simply provide us with your design drawings or specifications, and we’ll create a customized pin shaft tailored to your exact requirements.

Q7: Can you ship to international locations?

A7: Yes, we can deliver our high-quality excavator pin shafts worldwide, offering efficient shipping and timely delivery to your location.

Q8: Are your pin shafts compatible with other excavator brands?

A8: Our pin shafts are designed for a wide range of excavators, including those from Sany Heavy Industry, but we can also customize them for other brands as needed.