English ![]()
+86-17692703999
+86-17692703999 No. 6, West Side Auxiliary Road,
Sunshine Street, Linxi County, Xingtai
City, Hebei Province
Sunshine Street, Linxi County, Xingtai
City, Hebei Province
 |
| Quantity: | |
|---|---|
30890000009
Our Custom-Made 70*360 mm Loader Sub-Frame Pin, Bucket Pin, and Pin Sleeve are precision-engineered replacement components exclusively designed for the LG855N wheel loader (Model: 30890000009). These parts are built to match the original equipment’s specifications, enabling direct OEM replacement without additional machining or modifications. With a strict focus on durability and performance, they feature a surface-hardened structure and optimized dimensions—including an installation hole tolerance of ≤0.15mm—to ensure seamless integration with the LG855N’s bucket hinge system. Whether used in earthmoving, mining, or construction, these components deliver reliable performance, resisting wear and high-frequency impact from materials like gravel and concrete blocks. Crafted from premium alloys (45#/40Cr/42CrMo) and treated with advanced heat processes, they outperform standard carbon steel parts by 3-5 times in wear resistance, making them a long-lasting solution for heavy-duty loader operations.
The surface of each loader pin and pin sleeve undergoes carburizing and quenching treatment, forming a 1.5-2.0mm hardened layer. This treatment boosts wear resistance to 3-5 times that of ordinary carbon steel, allowing the parts to withstand repeated impact loads during bucket loading and unloading—critical for harsh worksites like mines or construction zones.
The transition between the shaft shoulder and shaft body uses a rounded chamfer design (R5-R8), which eliminates stress concentration points. Verified by finite element analysis, this optimization ensures a fatigue life of ≥100,000 load cycles, reducing the risk of premature breakage under continuous use.
Every component is manufactured to strictly match the LG855N loader’s bucket hinge structure. With an installation hole tolerance of ≤0.15mm, they directly replace original parts, saving maintenance time and avoiding the need for on-site machining.
We offer three high-performance materials to suit diverse working conditions:
42CrMo alloy structural steel: Tensile strength ≥1080MPa, ideal for heavy mining (withstands loads over 100kN).
45# quenched and tempered steel: Cost-effective (2/3 the cost of 42CrMo) for medium-load earthworks.
40Cr alloy steel: Balances strength and toughness for general construction tasks.
Using high and medium frequency induction equipment, the hardened layer depth is precisely controlled between 2mm-6mm, with a Rockwell hardness (HRC) of 52-60. This consistency guarantees uniform performance across every batch.
These sub-frame pins, bucket pins, and pin sleeves are tailor-made for the LG855N, supporting its core functions: bucket lifting, material loading, and dumping. They ensure smooth coordination between the loader’s arm and bucket, even under heavy loads.
Suitable for construction projects involving concrete blocks, bricks, or construction waste. The carburized surface resists wear from frequent contact with hard debris, extending the parts' service life.
Ideal for soil excavation, backfilling, and grading. The 45# steel option provides cost-effective durability for medium-load scenarios, while regular lubrication further minimizes wear.
Optional 316L stainless steel variants offer corrosion resistance (salt spray test ≥1000 hours) and withstand chloride ion concentrations ≤5000ppm, making them perfect for ports or coastal construction.
Our Custom-Made 70*360 mm Loader Sub-Frame Pin, Bucket Pin, and Pin Sleeve are precision-engineered replacement components exclusively designed for the LG855N wheel loader (Model: 30890000009). These parts are built to match the original equipment’s specifications, enabling direct OEM replacement without additional machining or modifications. With a strict focus on durability and performance, they feature a surface-hardened structure and optimized dimensions—including an installation hole tolerance of ≤0.15mm—to ensure seamless integration with the LG855N’s bucket hinge system. Whether used in earthmoving, mining, or construction, these components deliver reliable performance, resisting wear and high-frequency impact from materials like gravel and concrete blocks. Crafted from premium alloys (45#/40Cr/42CrMo) and treated with advanced heat processes, they outperform standard carbon steel parts by 3-5 times in wear resistance, making them a long-lasting solution for heavy-duty loader operations.
The surface of each loader pin and pin sleeve undergoes carburizing and quenching treatment, forming a 1.5-2.0mm hardened layer. This treatment boosts wear resistance to 3-5 times that of ordinary carbon steel, allowing the parts to withstand repeated impact loads during bucket loading and unloading—critical for harsh worksites like mines or construction zones.
The transition between the shaft shoulder and shaft body uses a rounded chamfer design (R5-R8), which eliminates stress concentration points. Verified by finite element analysis, this optimization ensures a fatigue life of ≥100,000 load cycles, reducing the risk of premature breakage under continuous use.
Every component is manufactured to strictly match the LG855N loader’s bucket hinge structure. With an installation hole tolerance of ≤0.15mm, they directly replace original parts, saving maintenance time and avoiding the need for on-site machining.
We offer three high-performance materials to suit diverse working conditions:
42CrMo alloy structural steel: Tensile strength ≥1080MPa, ideal for heavy mining (withstands loads over 100kN).
45# quenched and tempered steel: Cost-effective (2/3 the cost of 42CrMo) for medium-load earthworks.
40Cr alloy steel: Balances strength and toughness for general construction tasks.
Using high and medium frequency induction equipment, the hardened layer depth is precisely controlled between 2mm-6mm, with a Rockwell hardness (HRC) of 52-60. This consistency guarantees uniform performance across every batch.
These sub-frame pins, bucket pins, and pin sleeves are tailor-made for the LG855N, supporting its core functions: bucket lifting, material loading, and dumping. They ensure smooth coordination between the loader’s arm and bucket, even under heavy loads.
Suitable for construction projects involving concrete blocks, bricks, or construction waste. The carburized surface resists wear from frequent contact with hard debris, extending the parts' service life.
Ideal for soil excavation, backfilling, and grading. The 45# steel option provides cost-effective durability for medium-load scenarios, while regular lubrication further minimizes wear.
Optional 316L stainless steel variants offer corrosion resistance (salt spray test ≥1000 hours) and withstand chloride ion concentrations ≤5000ppm, making them perfect for ports or coastal construction.
