PERMCO K3V140 Fan Pump + Main Pump for Rotary Drilling Rig
Fit for Sany SR280 SR285
Product Overview
PERMCO K3V140 integrated pump set includes a dedicated Fan Pump and main Hydraulic piston pump, specially matched for Sany SR280 and SR285 rotary drilling rigs. As the core power supply unit of the whole hydraulic system, this combined hydraulic pump provides stable high‑pressure oil flow for the drilling, lifting, rotation and cooling circuits of large foundation engineering Machine. The K3V140 series adopts swash‑plate axial piston structure, featuring high volumetric efficiency, strong overload resistance and low‑noise operation. The independent fan pump supplies hydraulic power for the cooling system, while the main pump drives all working actuators of the rotary drilling rig. Using PERMCO genuine matched hydraulic pump components can effectively ensure the continuous heavy‑load operation of the Machine and maintain the stability of the entire hydraulic system. It is widely applied for OEM matching, equipment overhaul and aftermarket spare‑parts replacement of foundation construction equipment.
Technical Specifications
- Brand: PERMCO
- Applicable Equipment: Sany SR280, SR285 Rotary Drilling Rig
- Product Type: K3V140 variable‑displacement axial Hydraulic piston pump, integrated with independent fan pump
- Main pump displacement: 140 cc/rev
- Rated continuous working pressure: 315 bar; Peak pressure: 350 bar
- Max rotating speed: 2200 rpm
- Control mode: Load sensing pressure compensation control
- Structure: Tandem combined design, one input shaft drives main pump and fan pump simultaneously
- Working medium: Anti‑wear hydraulic oil for heavy‑duty mobile hydraulic system
- Operating temperature: -20℃ ~ +85℃
- Feature: Compact integrated layout, high‑precision rotating group, excellent anti‑pollution performance, perfect dimensional matching with original rig, suitable for long‑time heavy‑load construction working conditions of foundation Machine
Working Principle
The engine drives the shared input shaft of the K3V140 Hydraulic piston pump. The main pump outputs large‑flow high‑pressure oil to supply the main working circuit of the rotary drilling rig, realizing drilling, hoisting and slewing actions. The independent fan pump provides stable hydraulic flow for the cooling fan, ensuring the temperature of the hydraulic system stays within a safe range during continuous operation. The built‑in load‑sensing control valve automatically adjusts the swash‑plate angle according to the load demand of the Machine, changing pump displacement to reduce energy consumption and heat generation. When internal friction pairs of the hydraulic pump are worn, faults such as insufficient drilling power, slow movement, high oil temperature and abnormal noise will occur. Replacing a qualified PERMCO K3V140 pump can fully restore the hydraulic power performance of the rig and keep the hydraulic system running stably.
Core Advantages
1. PERMCO precision manufacturing, K3V140 mature piston pump design, stable output under continuous heavy‑load conditions, greatly improving the reliability of the hydraulic system.
2. Integrated fan pump and main pump tandem structure, simplifies pipeline arrangement, reduces installation space and maintenance difficulty of the construction Machine.
3. Load‑sensing variable control, intelligently matches flow with working load, lowers energy loss and oil temperature rise of the hydraulic pump, prolonging service life of the whole system.
4. High‑precision valve plate and piston matching, strong contamination tolerance, adapts to harsh dusty construction sites, reduces failure rate of the Hydraulic piston pump.
5. Strictly follows original mounting dimensions, good interchangeability, direct replacement without secondary machining, convenient for on‑site overhaul and maintenance of rotary drilling rigs.
Application Range
PERMCO K3V140 Hydraulic piston pump is a key power component for the hydraulic system of large rotary drilling rigs. It is specially applied to Sany SR280, SR285 and similar foundation engineering Machine. Widely supplied for construction machinery OEM manufacturers, maintenance repair stations, engineering equipment leasing companies and global aftermarket spare‑parts trading business.
