Product Overview

Hydraulic systems power critical industrial machinery and equipment through reliable fluid pressure transmission. We specialize in custom manufacturing of high-precision hydraulic components including pump housings, valve blocks, manifold bodies, actuator cylinders, and integrated hydraulic assemblies, utilizing advanced precision machining, surface finishing, and rigorous pressure testing to meet demanding industrial performance and safety standards. Our components serve construction equipment, mining machinery, agricultural equipment, material handling systems, and industrial automation platforms.

• Precision Range: ±0.01mm (critical pump/valve bores), ±0.05mm (functional dimensions)
• Surface Finish: Ra≤0.4μm (pressure-contact surfaces), Ra≤0.8μm (standard surfaces)
• Material Expertise: Ductile iron, aluminum alloys, stainless steel (316L), high-strength steel
• Pressure Rating: Up to 350 bar (5,000 psi) standard, 500+ bar custom designs
• Production Capacity: 100,000+ hydraulic components annually
• Quality Assurance: Pressure leak testing, flow rate verification, dimensional inspection, material certification

Main Industrial Hydraulic Component Types

Hydraulic Pump Housings

Precision-cast or machined pump housings (100-500mm dimensions) for gear, piston, and vane pump applications with ±0.01mm tolerance on critical bearing bore diameters and shaft interfaces. Features include integrated relief valve chambers, drain passages, and pressure compensation provisions. Pressure rating: 210-350 bar continuous operation. Material: ductile iron or aluminum alloy with optimized wall thickness for structural rigidity. Displacement range: 1-100 cc/rev accommodating diverse flow requirements.

Directional Control Valve Blocks

Precision-ported valve manifolds (100-400mm length, ±0.01mm tolerance on spool bore and port alignment) for 4/3, 4/2, 3/2 valve configurations. Features include integrated solenoid coil cavities, integrated electronics mounting surfaces, and sandwich module compatibility. Pressure rating: 210-350 bar with integral overflow protection. Spool stroke: 5-50mm with repeatable actuation performance across 1,000,000+ cycles.

Pressure Relief Valve Bodies

Compact relief valve housings (40-150mm overall length) with ±0.05mm tolerance on poppet seat bore (critical sealing diameter Φ8-Φ25mm) and spring guide surfaces. Features include pressure adjustment screw provisions, integral drain passages, and safety-rated venting. Cracking pressure: adjustable 50-350 bar with ±2% repeatability. Valve seat material: hardened steel or tungsten carbide for extended service life.

Hydraulic Cylinders & Actuators

Precision-bored cylinder tubes (50-500mm bore diameter, 1-5 meters stroke length) with ±0.01mm bore tolerance and mirror-polished internal surfaces (Ra≤0.4μm) for reliable piston seal performance and long service life. Features include integrated trunnion mounts, cushioning provisions, and ports with SAE or ISO thread standards. Pressure rating: 210-280 bar standard, 350 bar available. Materials: hard-anodized aluminum or honed steel tubes.

Flow Control Valve Cartridges

Compact cartridge-style flow control valves (Φ20-Φ35mm, ±0.02mm critical tolerance) for proportional or on-off flow regulation. Features include pressure-compensated design, integral adjustment screws, and cavity mounting provisions. Flow capacity: 5-100 LPM with accuracy ±2% across operating range. Spool design optimized for minimal hysteresis and stable flow control.

Manifold Block Assemblies

Large integrated manifold blocks (200-800mm dimensions, ±0.05mm tolerance on internal cavity alignment) consolidating multiple valve and pump functions into single precision-machined aluminum or ductile iron body. Features include multi-level internal passages, sandwich module mounting surfaces, and integrated solenoid mounting provisions. Custom flow distribution networks designed per customer system architecture.