150103150024A External gear pump Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

150103150024A External gear pump Sany SY1350C1C3KH Tracked hydraulic excavator spare parts

150103150024A is a Sany original part number external gear pump, specifically designed for the SY1250H mining excavator. This model operates under heavy loads, and the hydraulic system has stringent requirements for the stability and wear resistance of the hydraulic fluid. It integrates high-strength wear-resistant gears, a precision meshing structure, a low-leakage sealing design, and vibration and shock resistance, meeting national and industry standards such as JB/T 8413.1-2010 and JB/T 9744-2010. It is compatible with core components such as the SSY008119457 hydraulic oil tank assembly, pump chamber piping, and SSY009114936 cooling piping. Suitable for open-pit coal mines and metal mines, it prevents oil leakage, flow fluctuations, gear wear, and other malfunctions, making it a crucial original part for ensuring continuous operation of the entire machine in the mine.

Core technical parameters

Model: 150103150024A
Main body material: The pump body is made of 40Cr alloy structural steel with quenching and tempering treatment, and the gears are made of high-chromium wear-resistant alloy.
Operating temperature: -30℃ to 150℃, suitable for open-pit mines with large day-night temperature differences and high pump body operating environments.
Core working parameters: working pressure 15-30MPa, meeting the hydraulic conveying requirements of SY1250H whole machine, pressure pulsation ≤±0.15MPa, outstanding operating stability[3]; flow rate 16-63m³/h, volumetric efficiency ≥90%, total efficiency ≥85%, can stably convey hydraulic oil, with no obvious flow loss[3]; speed 1450-2200r/min, adopts precision gear meshing design, strong self-priming ability, noise control at 62-77dB(A), service life ≥8000 working hours.
Structural Design: Employs an external meshing double gear structure, relying on gear meshing to create changes in working volume for oil delivery; features a built-in low-leakage sealing structure; and integrates the pump shaft and gears.
Surface treatment: The pump body adopts a dual protection process of phosphating and high-temperature anti-rust coating, and the gear surface is hardened to withstand salt spray for ≥800 hours.

Core functions and roles

As the “hydraulic transmission core” of the SY1250H, its core function is to transmit hydraulic oil through gear meshing, converting mechanical energy into hydraulic energy to stably supply pressure to the excavator’s traveling, rotating, and digging actuators. Simultaneously, its low-leakage design reduces oil loss, buffers vibration, and prevents leakage. This avoids machine stunting and efficiency reduction caused by oil leakage and flow fluctuations, extends the service life of core hydraulic system components, and reduces maintenance costs. Working in conjunction with the hydraulic tank, pump chamber piping, and cooling piping, it forms the entire machine’s hydraulic transmission system and is a key hydraulic component ensuring stable and efficient mining operations.

Applicable Scenarios

Widely used in the hydraulic system of SY1250H machine, it is compatible with the core link of oil conveying in the pump room, and connects the SSY008119457 hydraulic oil tank, pump room pipeline, and SSY009114936 cooling pipeline. It undertakes the functions of medium and high pressure hydraulic oil conveying and power transmission[3]. It can also be adapted to large mining excavators of the same specifications. It is suitable for open-pit mines and earthwork projects with continuous heavy load and harsh working conditions for 24 hours. It is an essential hydraulic core component for equipment manufacturing, overhaul, after-sales maintenance and bulk purchase. It can reduce leakage loss and downtime costs, and improve operating efficiency and return on investment.

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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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