A210111000101 Bolt Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

A210111000101 Bolt Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

Bolt A210111000101 is an original equipment manufacturer (OEM) part number bolt specifically designed for the SANY SY1250H 125-ton mining excavator. This model is primarily used for earthmoving and ore loading operations in large open-pit mines and earthmoving projects. It boasts outstanding reliability and operational efficiency. The bolt integrates core features such as a high-strength alloy base material, precision thread machining, multiple anti-corrosion protections, and an anti-loosening locking design. It is mainly used in large open-pit coal mines and metal mines for excavation and topsoil stripping operations. Through its powerful fastening force, it ensures reliable connection of core components, resisting the severe vibrations and impact loads generated by heavy-duty excavation and rotation operations. It prevents loosening and displacement of connections, avoiding transmission jamming, component detachment, and other malfunctions. Adaptable to mining conditions characterized by high temperatures, high dust, strong vibrations, and large temperature differences, it is a key OEM part for reducing maintenance costs and ensuring operational continuity in mines.

Core technical parameters

Model: A210111000101, Special bolts for Sany SY1250H 125-ton mining excavators
Main body material: 40Cr alloy structural steel (high strength version) or Q235 carbon steel (general purpose version) are both available.
Operating temperature: -30℃ to 150℃; no brittleness or deformation at low temperatures; maintains good mechanical and locking properties at high temperatures.
Key operating parameters: Compatible with M16-M36 series bolts (common sizes: M16×80, M20×100, M24×120, M30×150, M36×180); thread specifications are designed according to national standards, marked as “nominal diameter × pitch”; pitch marking can be omitted for coarse threads; thread accuracy reaches 6g grade, with clear tooth profile, no burrs, smooth engagement, and torque coefficient controlled between 0.110 and 0.150; hexagonal head design.
Structural design: It adopts a hexagonal head + full/partial thread structure, and the thread profile is precision rolled; the transition between the head and the shank is designed with rounded corners.

Core functions and roles

As the “heavy-duty fastening core” of the Sany SY1250H 125-ton mining excavator, this model, a recipient of the “2023 China Construction Machinery Annual Product TOP50” Golden Finger Award, features bolt A210111000101. Its core function is to provide strong and stable locking force, ensuring reliable connection of core components such as the slewing platform, slewing device, and cover, transmitting operational loads, resisting heavy-duty vibrations and impacts, preventing loosening and detachment of connections, and guaranteeing the overall structural stability and operational safety. In large open-pit mines and water conservancy projects, it not only prevents bolt loosening and connection failure caused by heavy-duty vibrations but also works with washers (A210491000121) to distribute fastening pressure, protecting core component connections and preventing damage caused by bolt compression. Simultaneously, its high strength and fatigue resistance allow it to withstand 24-hour continuous heavy-duty operations, reducing bolt breakage, stripping, and other malfunctions, thus lowering downtime and maintenance costs.

Applicable Scenarios

Widely used in the heavy-duty connection parts of the entire machine of the Sany SY1250H 125-ton mining excavator, this model is designed for large open-pit mines and earthwork projects. The bolts are specifically adapted to the SY1250C2C3KH slewing device shaft system fixing, SSY008347233 slewing platform assembly, A820101117871 cover fixing, hydraulic pipeline flange connection, engine peripheral component fastening, travel gearbox end cover fixing, etc., especially adapted to M16-M36 series bolt connection scenarios [3][9]. It is an essential component for the heavy-duty connection of the whole machine, and can also be adapted to the corresponding connection links of other large mining excavators of the same specification from Sany. It is especially suitable for 24-hour continuous heavy-duty operation, harsh working conditions (high dust, strong impact, large temperature difference between day and night, high humidity) in open-pit mines and large earthwork projects. It is an essential heavy-duty fastener for equipment manufacturing, overhaul, old machine upgrade and fault repair.

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3. Power System
4. Pipeline
7. Air conditioning system
12 SSY004929649 Bushing 180×160×76
13 SSY004929650 Bushing 180×160×105
14 A820606030364 Sealing Gasket
15 A820101117871 Cover
16 A210491000121 Washer
17 A210111000101 Bolt

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