Hydraulic System Components

　　Product Introduction

　　Xingda Filters has long focused on industrial filtration and hydraulic applications. Our full range of hydraulic system components includes hydraulic springs, valve covers, valve seats, valve plates, and spring assemblies. These components are widely used in construction machinery, industrial hydraulic power units, wind turbine hydraulic systems, and heavy vehicles. With industrial-grade precision and long service life, they are ideal replacements for original equipment manufacturer (OEM) parts and a reliable choice for equipment maintenance and upgrades.

　　Main Products

　　1. Hydraulic Spring Assemblies

　　These springs provide stable preload and rebound force for relief valves, check valves, and pressure reducing valves, ensuring stable pressure control and oil flow in hydraulic systems.

　　Made of high-quality alloy spring steel, professionally heat-treated and surface-treated for corrosion resistance.

　　Features high fatigue resistance and corrosion resistance, with stable performance within a temperature range of -40℃ to 120℃.

　　Strict dimensional accuracy, with spring force tolerance controlled within ±3%.

　　Zinc-plated passivated surface provides excellent rust prevention in various hydraulic oils.

　　Suitable for relief valves, check valves, pressure reducing valves, hydraulic pumps, and hydraulic cylinders.

　　2. Valve Cover and Seat

　　The valve cover and seat serve as the mounting base and sealing structure for the valve core and spring, maintaining structural strength and sealing performance.

　　Forged from high-strength alloy steel or aluminum alloy and precision CNC machined.

　　High flatness and coaxiality ensure tight sealing.

　　Standardized installation dimensions allow direct replacement of original parts.

　　Precision-machined sealing grooves are compatible with O-rings and support rings, effectively preventing leakage.

　　Suitable for cartridge valves, modular valves, standard plate valves, manifold valve blocks, and hydraulic power units.

　　3. Valve Plate and Disc

　　The valve plate is a key sealing component in check valves, one-way valves, and relief valves, controlling oil flow direction and system pressure.

　　Precision ground from stainless steel and alloy steel.

　　Extremely smooth sealing surface achieves zero leakage performance.

　　Rapid response, preventing jamming even at high-frequency operation.

　　High impact resistance and wear resistance extend service life.

　　Compatible with hydraulic valves, pumps, motors, and various hydraulic components.

　　4. Hydraulic Valve Repair Parts Kit

　　A complete set of small parts for valve maintenance, refurbishment, and modification, including valve seats, valve plates, nuts, washers, and positioning parts.

　　Standardized dimensions, highly interchangeable with most global valve brands.

　　All metal parts are defect-tested to ensure strength and reliability.

　　Customizable combinations available for different pressure ratings and valve models.

　　Factory direct sales, prices lower than original equipment manufacturer (OEM) parts.

　　Ideal choice for valve repair, hydraulic station retrofitting, and engineering machinery maintenance.

　　5. Integrated Spring and Valve Assembly

　　Pre-assembled unit including spring, valve seat, guide rod, and seals for direct installation.

　　Pre-assembled and factory-tested for pressure, fatigue, and sealing performance.

　　Linear spring force for precise pressure control.

　　Precision guide structure prevents spring deformation and jamming.

　　High-quality oil-resistant seals for durability.

　　Suitable for relief valves, sequence valves, pressure reducing valves, hydraulic pumps, and hydraulic motors.

　　Why choose our hydraulic components?

　　Premium Materials: Selected high-strength alloy steel, with full material traceability.

　　High Precision: CNC precision machining with extremely small tolerances ensures perfect fit and sealing.

　　100% Testing: Each part undergoes pressure, fatigue, sealing, and dimensional testing.

　　Long Lifespan: High wear resistance and fatigue resistance reduce replacement frequency.

　　Perfect Replacement: Directly interchangeable with original parts from most mainstream brands.

　　Customization Support: OEM and custom production services are available based on drawings or samples.

　　Cost-Effective: Factory direct supply results in shorter delivery times and lower overall costs.

　　Application Areas

　　Our hydraulic components are widely used in:

　　Construction Machinery: Excavators, loaders, cranes, road rollers

　　Industrial Equipment: Hydraulic power systems Force Units, Machine Tools, Metallurgical and Mining Machinery

　　Wind Energy: Pitch and Yaw Hydraulic Systems

　　Heavy Vehicles: Dump Trucks, Fire Trucks, Special Engineering Vehicles

　　Marine Applications: Steering Gears, Winches, Hoist Systems

　　Service and Support

　　Sample Testing: Free samples are provided for quality and compatibility verification.

　　Customized Solutions: Customized parts samples can be made based on your drawings, specifications, or original parts.

　　Technical Support: Professional hydraulic engineers provide advice on selection, installation, and maintenance.

　　Fast Delivery: Standard parts are in stock; customized orders are completed within 7-15 days.

　　Quality Assurance: 12-month warranty against manufacturing defects.

　   Please contact us if you require specific parameters, quotations, or customized services.

       Mail：jyx@xingdalqq.com