A210491000121 Washer Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

A210491000121 Washer Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

A210491000121 is a Sany original parts number gasket, specifically designed for the SY1250H mining excavator. This model operates under heavy loads and strong vibrations, making leaks prone to occur at pipe and component connections, thus necessitating stringent sealing and protection requirements. It integrates high-strength sealing materials, precise dimensional accuracy, oil and corrosion resistance, and cushioning and wear resistance as core characteristics, conforming to national and industry standards such as GB/T 95-2023 and GB/T 97.1-2002. It is compatible with core components such as the 150103150024A external gear pump, the SSY008119457 hydraulic oil tank assembly, and pump room piping. Suitable for open-pit coal mines and metal mines, it prevents oil leaks and wear on connecting surfaces, making it a crucial original parts for ensuring continuous operation of the entire machine in mines.

Core technical parameters

Model: A210491000121
Main body material: Stainless steel or butyl rubber are both available;
Operating temperature: -30℃ to 150℃, suitable for open-pit mines with large day-night temperature differences and high-temperature environments in hydraulic systems.
Key operating parameters: Suitable for inner diameters of 80-120mm, outer diameters of 100-140mm, and thicknesses of 3-5mm (compatible with SY1250H connection specifications); dimensional tolerance ±0.02mm, conforming to GB/T 97.1 standard specifications; hardness 60-80 Shore A (rubber type), Brinell hardness 180-220 HB (stainless steel type); compression set ≤15%; sealing pressure up to 35MPa, meeting the high-pressure sealing requirements of the entire machine; precision stamping forming, surface flatness ≤0.01mm, service life ≥6000 working hours.
Structural Design: Features a flat, ring-shaped structure, precision stamped or cut; smooth, burr-free surface; rubber version includes built-in reinforcing fibers; compatible with various connection methods such as bolts and flanges.
Shape and size: Standard ring structure, regular shape, no burrs or cracks, dimensions precisely matched to SY1250H hydraulic components and pipeline connection interfaces, inner diameter, outer diameter, and thickness customized according to original factory assembly standards.
Surface treatment: The stainless steel version undergoes a dual treatment of mechanical polishing and passivation to remove surface burrs and oxides, enhancing corrosion resistance.

Core functions and roles

As a “sealing and protective gasket” for the SY1250H, its core functions are to fill connection gaps, seal against leaks, distribute bolt pressure, protect connection surfaces, prevent hydraulic oil leakage, and avoid wear on connecting components caused by vibration and pressure. It can prevent hydraulic system failures and component damage caused by oil leakage, extend the service life of core components such as gear pumps, pipelines, and oil tanks, reduce maintenance costs, and work in conjunction with gear pumps, hydraulic oil tanks, and pipelines to form a complete machine sealing and protection system. It is a key sealing component ensuring stable and efficient mining operations.

Applicable Scenarios

Widely used in the hydraulic system of the SY1250H machine, it is compatible with the connection parts of components such as the 150103150024A external gear pump, SSY008119457 hydraulic oil tank, and pump room pipelines. It provides sealing and leak prevention, as well as buffering and wear protection. It can also be used with large mining excavators of the same specifications. Suitable for 24-hour continuous heavy-duty and harsh working conditions in open-pit mines and earthmoving projects, it is an essential sealing accessory for equipment manufacturing, overhaul, after-sales maintenance, and bulk procurement. It can reduce leakage losses and downtime costs, and improve operational efficiency.

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1. Pump chamber piping
2. Return oil pipeline
3 SSY009114936 Cooling Pipeline
4. Traveling Pipeline
5 Valve body installation
6-turn pipeline
7. Boom piping
8. Boom and Bucket Piping
9 SSY008119457 Hydraulic oil tank assembly
10 12921534 Sheath
11 12921535 Sheath

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