WINMOST hydraulic pumps and directional control valves

Industrial hydraulics WINMOST (Guangzhou): high-pressure internal gear pumps WNIP, aluminum pumps EG-PA, variable vane pumps SF/DF, directional valves WD, and modular valves MRV.

WINMOST: precision hydraulic pumps and power units

Guangzhou Winmost Precision Machinery Co., Ltd. has developed high-pressure hydraulic pumps, control valves, and integrated power units since 1992. The facility houses automated machining centers and precision testing benches for industrial hydraulics.

Three decades of engineering development in precision hydraulic equipment
Dedicated manufacturing facility and assembly lines located in Guangzhou
Low-noise internal gear pumps and variable displacement vane pump assemblies
Technical selection of hydraulic components matching plant nameplate data

Internal gear pumps WNIP2 and WNIP3 series

High-pressure internal gear pump series WNIP2, WNIP3, and WINIP5 feature radial and axial pressure compensation. The robust design guarantees stable operating pressure up to 280-300 bar, quiet operation below 72 dB, and high volumetric performance.

Displacement range spanning from 10.3 to 125.6 cubic centimeters per turn
Continuous working pressure up to 280 bar with momentary peaks to 300 bar
Radial and axial pressure balance mechanism minimizing internal gear wear
Flexible rotational operating speed envelope reaching from 80 to 3000 rpm

External aluminum gear pumps EG-PA and EG-PB

External gear pump models EG-PA, EG-PB, and duplex assemblies EG-PBD are built with extruded aluminum alloy bodies and alloy covers. They sustain working pressures up to 210 bar and accommodate high drive speeds up to 6000 rpm with compact outlines.

Extruded aluminum alloy body combined with heavy-duty robust alloy end covers
Optimized gear teeth geometry delivering smooth flow and reduced vibration
Elevated shaft rotational speed tolerance operating reliably up to 6000 rpm
Single and tandem configurations providing separate independent output ports

Variable displacement vane pumps SF, DF, and DG

Variable displacement vane pump units SF, DF, and combined DG provide mechanical regulation of pressure from 8 to 70 bar and flow up to 40 l/min. Dual DF assemblies run on a shared shaft from one electric motor, minimizing machine footprint requirements.

Built-in direct mechanical regulator for agile hydraulic pressure tuning
Dual vane pumps on shared drive shaft powering two distinct hydraulic loops
Integrated DG units combining variable vane and external gear pump modules
Substantial reduction of electrical energy consumption in idle hold modes

Directional spool solenoid valves WD series

Solenoid-operated directional spool valve series WD comes in nominal bore sizes from G02 (1/4") up to G10 (1 1/4"). Engineered for pressures up to 315 bar, they feature sealed electrical solenoids running on direct or alternating control voltage sources.

Standard interface bore sizes ranging from Cetop 02 (1/4") to Cetop 10 (1.25")
Multiple spool flow arrangements with spring centering and detent positions
Interchangeable wet-pin coils operating on DC 12V/24V or AC 110V/220V power
Industry-standard DIN electrical plugs and integrated terminal wiring boxes

Modular stacked valves MRV and relief valves SRV

Modular sandwich plate valves MRV, MPC, MBR and relief valves SRV are mounted on Cetop 02, 03, and 05 subplates. They deliver precise pressure regulation up to 315 bar and accommodate circuit flow rates up to 400 l/min in compact multi-station manifolds.

Pressure reducing and relief valves MRV and MBR with fine regulating screws
Pilot-operated check valves MPC providing secure hydraulic cylinder locking
Solenoid relief valves SRV executing prompt pump unloading during idle runs
Vertical modular stacking assembly creating compact leak-free control blocks

Engineering heritage and fluid power innovations of WINMOST

Industrial manufacturer Guangzhou Winmost Precision Machinery Co., Ltd. has developed high-precision hydraulic pumps, directional control valves, and integrated power units for over thirty years.

Tracing its operational roots to 1992 as Taiwan Found Chang Machinery, the company unified precision machining expertise and modern production lines in Guangzhou.

The primary engineering objective of Winmost is delivering energy-efficient hydraulic components with low acoustic noise and extended endurance for machine tools, injection moulding equipment, and forming presses.

The manufacturing site maintains an ISO9001:2015 quality framework to ensure dependable hydraulic power transmission under heavy duties.

High-pressure internal gear pumps WNIP2 and WNIP3

High-pressure internal gear pump models WNIP2, WNIP3, and WINIP5 are tailored for demanding hydraulic circuits in servo-driven injection moulding machinery and sheet metal folding equipment.

A signature feature of this architecture is continuous radial and axial pressure compensation that eliminates fluid bypass under pressures up to 280-300 bar.

Specially designed internal gear teeth profiles minimize output flow ripple and reduce noise levels below 72 dB at rated rotational velocities.

The WNIP series delivers superior volumetric efficiency across drive speeds spanning from 80 to 3000 rpm, guaranteeing smooth actuator positioning during rapid production cycling.

Compact external aluminum gear pumps EG-PA and EG-PB

External gear pump series EG-PA, EG-PB, and tandem models EG-PBD combine lightweight design, structural rigidity, and compact dimensions. The main pump body is extruded from dense aluminum alloy, while the front and rear covers are precision-machined with rigid journals for bearing support.

These external gear pumps handle continuous operating pressures up to 180-210 bar while tolerating shaft speeds up to 6000 rpm. Accurate involute gear geometry guarantees uniform fluid delivery across mobile machinery, woodworking systems, and secondary cooling loops.

Energy-saving variable displacement vane pumps SF and DF

Variable displacement vane pump models SF, tandem assemblies DF, and combined DG modules deliver hydraulic fluid with automatic output adaptation to load demands. An integrated direct-acting mechanical regulator enables fine pressure tuning across 8 to 70 bar with consistent circuit stabilization.

Dual-circuit DF assemblies combine two independent pumping cartridges on a single drive shaft, powering separate machine circuits from one electric motor.

During pressure-holding stages, the pump decreases displacement toward zero, preventing oil overheating and trimming power consumption by up to 80%.

High-pressure directional spool solenoid valves WD series

Directional spool solenoid valve series WD is engineered to route hydraulic power flows across interface sizes from Cetop 02 (1/4") to Cetop 10 (1 1/4"). Heavy-duty iron housings with optimized fluid passages withstand working pressures up to 315 bar with negligible internal pressure drops.

The valves utilize wet-pin solenoids with interchangeable coils for DC 12V/24V or AC 110V/220V power featuring sealed DIN connectors. Rapid spool shift times within 20 milliseconds and diverse neutral configurations ensure accurate actuator sequencing on industrial presses.

Modular sandwich valves and compact hydraulic power units

Modular sandwich plate valves MRV, MPC, MBR and relief valves SRV allow technicians to build compact multi-station manifolds without external interconnecting pipework.

Vertical stack assembly according to Cetop standards eliminates external leakage paths and accelerates routine maintenance procedures.

To supply complete machinery drives, Winmost produces compact Power Unit hydraulic stations with oil reservoir capacities from 20 liters and electric motor ratings between 0.75 and 3.7 kW.

The units integrate Winmost pumps with filtration circuits to provide clean pressurized fluid to all plant actuators.

WINMOST and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of WINMOST and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.