Hydraulic Piston Pump Spare Parts - China Manufacturer
From our factory in China, I deliver Hydraulic Piston Pump Spare Parts that keep your hydraulic systems running smoothly and reliably. I’m a Manufacturer with global reach, and I know downtime costs money, so I insist on tight tolerances, durable seals, and corrosion‑resistant materials. My parts fit popular pump brands with minimal modification, and I back them with strict QA, including 100% dimensional checks and leak testing before shipping. You’ll enjoy quick lead times, ready‑to‑ship stock, and flexible customization to match your exact piston pump model. I offer competitive pricing, bulk discounts, and clear documentation for procurement. Whether you need standard components or bespoke assemblies, I tailor solutions to your hydraulic needs. Partner with me to minimize maintenance intervals and maximize uptime. Let's discuss your sizes, materials, and timelines to align with your China‑based manufacturing capacity.
Hydraulic Piston Pump Spare Parts Ahead of the Curve Where Service Meets Innovation
Ahead of the curve, service-driven innovation goes beyond stock. It combines engineering support, accurate fitment guidance, and modular kits that simplify maintenance and reduce inventory. Advanced materials, remanufacturing programs, and data-driven monitoring enable proactive replacement before failures. This approach lowers total cost of ownership, minimizes downtime, and ensures smooth operation of critical systems wherever they are in the world.
| Part Name | Part ID | Material | Function | Compatible Pump Types | Typical Service Interval | Common Failure Mode | Recommended Inspection Procedure | Expected Service Life (hours) |
|---|---|---|---|---|---|---|---|---|
| Piston (Sliding) | HP-AXP-01 | Hardened chromium steel (AISI 4140) | Primary pressure-transmitting element | Axial piston (swashplate), bent-axis | 2,000–4,000 hours | Surface wear, scoring | Visual inspection for scoring; measure diameter & ovality; check surface finish (Ra) | 8,000–12,000 |
| Cylinder Barrel | HP-CB-02 | Case-hardened steel (surface ≥58 HRC) | Houses pistons; forms fluid chambers | Axial and radial piston pumps | 4,000–8,000 hours | Bore wear, pitting, corrosion | Measure bore diameter & roundness; inspect bore for pitting and hardness retention | 10,000–15,000 |
| Swash Plate | HP-SP-03 | Hardened alloy steel (induction-hardened) | Converts rotation into axial motion | Axial piston swashplate pumps | 5,000–10,000 hours | Surface fatigue, cracking, wear on cam track | Check flatness, cam-track wear, angle control and bearing interface for scoring | 10,000–15,000 |
| Axial Bearing (Spherical) | HP-AB-04 | Bronze (CuSn) with PTFE overlay | Support for swash plate / shaft | Axial piston pumps | 2,000–5,000 hours | Wear, seizure due to contamination | Measure radial play; inspect for scoring, lubrication path and clearance limits | 5,000–12,000 |
| Valve Plate | HP-VP-05 | Hardened tool steel | Controls inlet/outlet timing; sealing face | Axial piston pumps | 3,000–7,000 hours | Sealing face wear, pitting, erosion | Check port flatness, sealing faces and surface finish (Ra <0.2µm advised) | 9,000–13,000 |
| Check Valve (Ball + Seat) | HP-CV-06 | Stainless steel ball (AISI 440C); PTFE seat | One-way flow control (inlet/outlet) | Various piston pumps | 2,000–6,000 hours | Seat wear, ball abrasion or corrosion | Inspect seat for leakage under nominal pressure; check spring tension and ball surface | 6,000–10,000 |
| Shaft Seal Kit (Dynamic) | HP-SK-07 | NBR primary lip, PTFE backup (Viton option for high temp) | Seal rotating shaft to prevent external leakage | Shaft-driven hydraulic pumps | 1,000–3,000 hours | Elastomer aging, extrusion, lip wear | Visual check for hardening/cracks; verify lip geometry and hardness; pressure test if possible | 2,000–5,000 |
| O-ring Assortment | HP-OR-08 | NBR (standard); Viton (high temperature) | Static sealing in ports and covers | All hydraulic components | 1,000–2,500 hours | Compression set, swelling, chemical degradation | Check for hardness change, cracks and compression set; verify groove dimensions | 1,500–4,000 |
| Poppet Valve | HP-PV-09 | Hardened stainless steel | Directional flow control within valve block | Radial piston pumps & control blocks | 3,000–8,000 hours | Seat wear, spring fatigue, sticking due to contamination | Inspect seat sealing, poppet travel and spring tension; check for debris | 8,000–12,000 |
| Drive Shaft | HP-DS-10 | Alloy steel, induction hardened | Transmit torque to internal pump assembly | Various driven hydraulic pumps | 5,000–10,000 hours | Keyway wear, misalignment, fatigue | Check runout, keyseat wear, bearing fits and straightness; verify coupling alignment | 15,000–30,000 |
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