SANY 750 hydraulic fan pump For SY750 excavator

SANY 750 hydraulic fan pump For SY750 excavator Featured Image
  • SANY 750 hydraulic fan pump For SY750 excavator

Short Description:

112-6564 (alternate part number 161-6634, 0R-7793) variable axial plunger pump is aftermarket replacement for Caterpillar 416,426,428,436,438C backhoe loaders.

Product Detail

Product Tags

description

SANY750 Hengli fan pump is dedicated cooling hydraulic power unit for SANY SY750 mining excavator. Driven by the engine, it converts mechanical power into variable hydraulic flow for fan motor closed cooling system. The built-in proportional control mechanism adjusts pump displacement in real time based on temperature signal. When temperature rises, it increases output flow to speed up cooling fan; when temperature is low, it reduces flow to save power and cut fuel consumption. Core internal parts including plungers, cylinder block, valve plate and slippers are manufactured by Hengli, made of high-strength alloy steel with precision grinding and nitriding hardening. The friction pair maintains stable volumetric efficiency under long-time high-temperature cyclic load. Reinforced cast iron housing eliminates casting residual stress via stress relief annealing, resisting strong vibration and heavy dust in open-pit mining sites.

product parameters

Part No：SANY750 Fan Pump (Hengli)
Product Type：Variable Displacement Axial Piston Fan Pump
Applicable Equipment：SANY SY750 Mining Excavator
Control Mode：Temperature Sensitive Proportional Variable Control
Nominal Working Pressure：25 MPa (250 bar)
Max Instantaneous Peak Pressure：29 MPa (290 bar)
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-25℃ ~ +110℃
Main Material：High-density cast iron housing, high-strength alloy steel core components, FKM fluorine rubber seal
Surface Treatment：Precision grinding, nitriding hardening, stress relief annealing, anti-rust coating
Shaft Specification：Original standard splined shaft
Interchangeability：1:1 OEM original interchangeable, direct installation without modification
Packaging：Independent anti-rust packaging + export wooden case
Storage Environment：Dry indoor storage, moisture-proof, impact-proof, anti-corrosive gas

advantage

- 1:1 OEM fully interchangeable, bolt-on installation without modification
Manufactured strictly according to Hengli original drawing for SANY SY750 cooling system. Mounting holes, oil ports and spline shaft fully match original unit. Direct replacement minimizes machine downtime and reduces site service cost.
- Hengli nitrided alloy steel friction pair, stable performance under high-temperature mining cycles
Plunger, cylinder block and valve plate adopt deep nitrided alloy steel. It maintains stable volumetric efficiency during long continuous mining operation, reduces internal leakage and extends service life under high temperature.
- Temperature proportional variable control, intelligent energy saving for cooling system
High-precision proportional control automatically adjusts pump output with oil and water temperature. Fan speed rises when overheating risk appears; reduces flow at low temperature to cut power loss and fuel consumption.
- Reinforced cast iron housing, strong anti-vibration and dust resistance for open pit mines
Thickened reinforced cast iron housing with stress relief treatment. It withstands continuous vibration and heavy dust in open pit sites, preventing pump housing deformation and cracking.

FAQ 

Q1: Which machine does SANY750 Hengli fan pump fit?
A1: This hydraulic fan pump is designed for SANY SY750 mining excavator, matched with Hengli fan motor for cooling circuit. It is not compatible with other SANY excavator models. Confirm machine serial number before purchase.

Q2: What is the function of this fan pump?
A2: It supplies variable hydraulic flow to drive cooling fan motor. It controls fan rotation speed according to engine coolant temperature and hydraulic oil temperature to keep machine within safe working temperature range.

Q3: What symptoms appear when the fan pump wears out?
A3: Common signs: fan speed cannot rise when temperature increases, machine overheats easily, fan runs unstable, abnormal noise from pump body, obvious oil leakage at shaft seal.

Q4: What items need inspection before installing the new fan pump?
A4: Inspect fan motor, temperature control proportional valve and filter assembly. Flush cooling hydraulic pipeline and tank thoroughly to remove metal debris. Replace contaminated hydraulic oil before assembly.

Q5: Why the excavator still overheats after replacing fan pump?
A5: The fault may not come from fan pump. Check temperature sensor failure, proportional valve stuck, clogged radiator, blocked filter or trapped air in cooling circuit. Air bleeding is required after installation.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

our warehouse

our warehouse

Pack and ship

Pack and ship


  • Previous:
  • Next:
    • Write your message here and send it to us

    Products categories