PHM20.27.8L5-32S5-LGD/GD-N-PV-DBVSA hydraulic fan motor For Sany SR360R rotary drilling rig

PHM20.27.8L5-32S5-LGD/GD-N-PV-DBVSA hydraulic fan motor For Sany SR360R rotary drilling rig Featured Image
  • PHM20.27.8L5-32S5-LGD/GD-N-PV-DBVSA hydraulic fan motor For Sany SR360R rotary drilling rig

Short Description:

KP30.31S0-A8K9-POF/OD-T-PV-HSC hydraulic fan pump is aftermarket replacement spare part for Lovol FR485 excavator, Casappa KP30 series.

Product Detail

Product Tags

description

PHM20.27.8L5-32S5-LGD/GD-N-PV-DBVSA external gear fan motor acts as cooling fan drive unit for Sany SR360R rotary drilling rig, powered by matched hydraulic fan pump. It converts hydraulic pressure energy into rotary mechanical power to drive radiator fan. Precision hardened gear pair maintains consistent torque output across wide flow range. During hard rock drilling, the motor increases fan speed to boost heat dissipation under heavy continuous load; under standby or light-load moving condition, fan speed drops automatically to reduce power consumption and fuel waste.
Alloy steel gear pair adopts surface hardening treatment to enhance wear resistance when hydraulic oil contains tiny solid contaminants. High-strength cast iron housing undergoes stress relief annealing to eliminate casting residual stress, resisting continuous thermal cycling and vibration shock generated by rotary drilling operation.High-performance FKM fluorine rubber sealing assembly delivers excellent high-temperature resistance and anti-aging property, reducing internal volumetric leakage and external oil seepage. Every fan motor passes full hydraulic bench inspection before shipment, including torque consistency, speed regulation and thermal endurance test.

product parameters

Part No：PHM20.27.8L5-32S5-LGD/GD-N-PV-DBVSA
Product Type：Fixed Displacement Hydraulic Gear Fan Motor
Applicable Equipment：Sany SR360R Rotary Drilling Rig
Control Mode：Fixed displacement external gear structure
Displacement：27.8 cc/rev
Nominal Working Pressure：23 MPa (230 bar)
Max Instantaneous Peak Pressure：27 MPa (270 bar)
Rated Rotation Speed：2400 rpm
Max Allowable Rotation Speed：3000 rpm
Working Medium：ISO VG46 Anti-wear Hydraulic Oil
Working Temperature Range：-20℃ ~ +110℃
Main Material：Cast iron housing, hardened alloy steel gear pair, FKM fluorine rubber seal
Surface Treatment：Precision grinding, surface hardening, stress relief annealing, anti-rust coating
Interchangeability：1:1 OEM interchangeable, direct bolt-on installation
Product Condition：Brand new aftermarket part, 100% hydraulic bench tested

advantage

- Built-in DBVSA pressure relief & anti-reverse valve integrated design
Integrated DBVSA valve module realizes overpressure protection and fan reverse rotation function. Reverse rotation can blow dust off radiator surface automatically, reducing manual cleaning frequency for pile foundation construction sites.
- High torque output under medium pressure for continuous rock drilling
Optimized gear tooth profile delivers stable high torque under medium working pressure, guaranteeing sufficient fan driving force during long-time hard rock drilling with high heat generation.
- Vibration-resistant heavy cast housing adapts to rig mast vibration
Stress-relieved thick cast shell withstands strong vibration transferred from drilling mast and rotary head, preventing housing deformation and seal damage under long-duration pile drilling.
- Low flow ripple design stabilizes temperature control during intermittent drilling
Reduced flow pulsation keeps fan speed steady during frequent start-stop of rotary drilling, avoiding repeated temperature fluctuation of engine and hydraulic system.
- Wide temperature adaptability for all-season pile construction
The sealing and gear material combination maintains stable performance in both low-temperature winter startup and high-temperature summer continuous drilling conditions.

FAQ 

Q1: Which machine does PHM20.27.8L5-32S5-LGD/GD-N-PV-DBVSA fan motor fit?
A1: This hydraulic fan motor fits Sany SR360R rotary drilling rig. Confirm machine serial number before purchase.

Q2: What hydraulic function does this fan motor support?
A2: It provides rotary power for radiator cooling system, dynamically adjusting fan speed to control engine water temperature and hydraulic oil temperature, used for pile foundation, bridge and large infrastructure drilling projects.

Q3: What are typical failure symptoms of worn fan motor?
A3: Typical symptoms: insufficient fan torque during rock drilling, fan speed cannot rise under heavy heat load, unstable rotating speed during drilling start-stop, radiator dust cleaning function fails, high oil temperature during long-time drilling, shaft seal oil leakage.

Q4: What inspections should be done before installing new fan motor?
A4: Inspect matched fan pump, cooling circuit control valve, hydraulic hoses and filter elements. Fully flush hydraulic tank and pipelines to remove metal debris. Replace degraded hydraulic oil before assembly.

Q5: Why rotary drilling rig still overheats after fan motor replacement?
A5: The fault may not come from motor. Check relief valve calibration, stuck valve spool, clogged filter, damaged seals or trapped air inside hydraulic circuit. Air bleeding must be completed 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.

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our warehouse

Pack and ship

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