A820202002973 High quality heavy equipment bushing excavator bucket bushing suitable for Sany 215

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SANY pin and bushing
OEM	NAME	OEM	NAME	OEM	NAME
11954088	PIN	14501324	PIN	11975455	BUSHING
A810312110021	PIN	14327798	PIN	A820202002975	BUSHING
12344208	PIN	A810303990035	PIN	11751558	BUSHING
11972669	PIN	A820301020461	PIN	A820202002972	BUSHING
13623374	PIN	A810312110015	PIN	11967354	BUSHING
13124497	PIN	A810312110019	PIN	60065325	BUSHING
13982405	PIN	14327797	PIN	60201101	BUSHING
11795851	PIN	14327781	PIN	60201102	BUSHING
A810312110014	PIN	13887021	PIN	60201104	BUSHING
11696987	PIN	A810303990032	PIN	A820202003320	BUSHING
11856384	PIN	13562518	PIN	11744971	BUSHING
A810312110017	PIN	14173258	PIN	10989145	BUSHING
11954086	PIN	14173260	PIN	11016612	BUSHING
11972607	PIN	150988000148A	BUSHING	13624387	BUSHING
11972528	PIN	150988000193A	BUSHING	11644425	BUSHING
A820202003321	PIN	150988000192A	BUSHING	11306936	BUSHING
A810303990033	PIN	14034760	BUSHING	A820202002974	BUSHING
14327796	PIN	A820202003323	BUSHING	A820202002973	BUSHING
A810303990037	PIN	61010752	BUSHING	A820202003017	BUSHING
13039467	PIN	61010753	BUSHING	11216201	BUSHING
13562517	PIN	14039205	BUSHING

    Excavator bushing    

    Excavator pin    

    Loader bushing    

    Loader pin    

    Construction machinery pins and bushings    

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>> Product Raw Material

Alloy steel

40Cr steel: has high strength and hardness, and can obtain good comprehensive mechanical properties after appropriate heat treatment process. It has good wear resistance and fatigue resistance, and can be used to manufacture excavator cylinder bushings that bear large loads and impact forces, and can ensure that the bushings are not easily deformed and damaged during operation.

42CrMo steel: It is a medium-carbon tempered steel with high strength, good toughness, and good hardenability. It can still maintain high strength and hardness at high temperatures, and is suitable for excavator cylinder bushings working under complex working conditions, and can withstand large pressures and dynamic loads.

A820202002973 High quality heavy equipment bushing excavator bucket bushing suitable for Sany 215

Raw material preparation

Base metal selection: According to the required performance of the sleeve, high-quality carbon steel or alloy steel is generally used as the base metal, such as common 45 steel, 40Cr, etc. These steels have good basic properties such as strength, toughness and wear resistance.

Machining: The forged sleeve blank needs to be machined to achieve the final size and precision requirements. First, rough machining is performed to remove most of the excess, and then semi-finishing and finishing are performed. Turning, boring, grinding and other processing processes are used to process the inner and outer cylindrical surfaces, end faces, oil grooves and other structures of the sleeve. During the processing, high-precision measuring tools are used for measurement to ensure that the dimensional accuracy is controlled within the specified range.

Heat treatment

Quenching treatment: Heat the machined sleeve to a quenching temperature of about 800℃ - 900℃, keep it warm for a certain period of time, and then quickly put it into a quenching medium such as oil or water for cooling. Quenching can make the sleeve obtain martensitic structure and improve its hardness and strength.

Tempering treatment: There is a large internal stress inside the sleeve after quenching, and tempering treatment is required. The tempering temperature is generally between 500℃ - 650℃, and the tempering time is determined according to the specific performance requirements. Tempering can eliminate internal stress, stabilize the organization and size, improve the toughness of the sleeve, and make the sleeve have good comprehensive mechanical properties.

Surface treatment

Phosphating treatment: In addition to hard chrome plating, phosphating treatment can also be performed. The sleeve is immersed in the phosphating solution to form a layer of phosphate protective film on its surface. This protective film can improve the corrosion resistance and lubricity of the sleeve, which is conducive to the smooth operation of the sleeve during operation.

Quality inspection

Appearance inspection: Check the surface of the sleeve for cracks, sand holes, pores, bumps and other defects with the naked eye or with the help of tools such as magnifying glasses. The surface should be smooth and without obvious flaws.

Dimensional accuracy measurement: Use precision measuring tools such as calipers, micrometers, and three-coordinate measuring instruments to measure the key dimensions of the sleeve, such as the inner diameter, outer diameter, length, and oil tank size, to ensure that the dimensional deviation is within the tolerance range required by the design.

Hardness test: Use a hardness tester to test the hardness of different parts of the sleeve to check whether the hardness meets the requirements after heat treatment to ensure that the sleeve has sufficient wear resistance and strength.

Metallurgical structure analysis: Cut a small amount of samples of the sleeve, perform metallographic preparation, and then observe its metallographic structure under a metallographic microscope to check whether the grain size, phase composition, and uniformity of the structure meet the standard requirements. The quality of the metallographic structure directly affects the performance of the sleeve.

Flaw detection: Use non-destructive testing methods such as ultrasonic flaw detection and magnetic particle flaw detection to detect whether there are defects such as cracks inside the sleeve to ensure the quality and safety of the sleeve.

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.