Pompe hydraulique Nachi PVD-2B-40P-16G5 pour mini-pelle Hitachi ZX60-5G
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Coordonnées du vendeur
+86 189 289...
+86 189 2896 5241
Chine
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Roumanie
Allemagne, Limburg-Offheim
Product Overview
This OEM‑grade axial piston main pump serves as the core hydraulic power unit built for Hitachi ZX60‑5G compact crawler excavator. Integrated with auxiliary pilot pump structure, this assembly generates regulated high‑pressure hydraulic oil to drive boom lift, arm curl, bucket operation, crawler travel and upper‑structure slew movements. This 6‑ton class machine is widely engaged in residential site preparation, municipal pipeline laying, garden landscaping and small‑scale demolition jobs. Under long‑term mixed‑load working cycles, internal precision components including cylinder block, piston shoe assemblies, valve plate and drive shaft will suffer gradual abrasion triggered by hydraulic oil aging and particle contamination. Typical failure manifestations contain insufficient digging breakout force, laggy combined actions, distinct rattling noise around pump housing, continuous hydraulic oil temperature rise and external seal oil seepage. Manufactured strictly following original OEM drawing standards, dimensions and pressure‑flow parameters, this pump enables direct drop‑in replacement, helping repair centers and equipment owners restore full machine performance without extended machine downtime.
Core Advantages
1. Upgraded friction pair for varied compact‑excavator site conditions
Key matching parts such as cylinder block, piston shoes and valve plate adopt special alloy material and multi‑stage heat‑treatment craft. Tightly controlled fitting clearance effectively lowers internal leakage and unstable output fluctuation. Excellent anti‑cavitation property guarantees stable operation even when hydraulic fluid carries tiny impurity particles, slowing component aging under dusty, high‑temperature construction surroundings.
2. Factory pre‑calibrated load‑responsive regulator assembly
Every finished pump undergoes comprehensive pressure‑flow debugging on professional hydraulic test bench. Regulator parameters are finely tuned to match original OEM standards, delivering quick response toward real‑time load changes during digging cycles. Built‑in pilot pump maintains steady control pressure for joystick manipulation, avoiding operating jitter and slow response frequently seen on worn‑out main pumps.
3. Original‑equivalent mounting structure for efficient field maintenance
Mounting flange, spline shaft specification, oil port layout and regulator installation positions keep 1:1 consistency with original parts. Field service technicians can complete pump replacement directly without adjusting pipelines or resetting complicated hydraulic system parameters. For rental fleets and local repair workshops, it largely cuts equipment idle duration and reduces economic loss caused by machine halt.
4. Reinforced housing structure and comprehensive sealing protection
Integral high‑density cast iron housing absorbs pressure impulse and mechanical vibration produced during frequent excavation cycles. Premium multi‑group sealing kits prevent high‑pressure hydraulic oil outward leakage, and meanwhile block mud, sand and moisture from penetrating into pump interior, protecting internal precision parts from secondary abrasive wear.
5. Reliable OEM‑level alternative for small excavator maintenance projects
Genuine original pump has long procurement cycle and high purchasing expense. This OEM‑quality replacement pump delivers stable overall performance at favorable cost. It acts as an ideal sourcing option for repair garages, equipment rental operators and global compact excavator spare‑parts wholesalers.
Manufacturing & Quality Control
Our production workshop focuses on manufacturing OEM‑grade hydraulic pumps for Hitachi small‑tonnage excavators. Full‑process quality management runs from raw material incoming inspection to finished goods delivery, covering material composition verification, heat‑treatment hardness test, key dimension measurement, assembling inspection and hydraulic bench test including pressure‑holding, flow output, noise detection and cyclic load simulation. Only fully qualified products can enter packaging process. Finished pumps are coated with anti‑rust preservative oil, wrapped by shock‑absorbing cushion materials and packed in export‑standard fumigated wooden cases, defending against scratch, deformation and rust damage in long‑distance sea‑land transportation. We support bulk wholesale, stable batch supply, small trial orders are acceptable for global purchasers.
Frequently Asked Questions
Q1: What abnormal phenomena suggest main pump inspection or replacement?
A: If your Hitachi ZX60‑5G excavator shows poor digging power, sluggish compound movements, obvious abnormal noise near main pump, rapid hydraulic oil overheating, or metallic powder is discovered inside hydraulic filter element, please conduct system pressure test and pump disassembly check without delay.
Q2: Can this hydraulic pump fit other Hitachi excavator models?
A: This assembly is specially engineered for Hitachi ZX60‑5G. Compact excavator main pumps differ greatly in displacement, spline dimension and internal regulator setup. Please verify your original part number PVD‑2B‑40P‑16G5 before order placement to prevent installation mismatch.
Q3: What essential items should be noticed in installation procedure?
A: Fully clean hydraulic oil tank, pipelines and oil cooler, install brand‑new hydraulic oil and all filter cartridges. Keep assembling environment clean to prevent contaminants entering pump inner chamber. After installation completion, carry out hydraulic system air exhaust and low‑speed no‑load running test before putting machine into formal construction operation.
Q4: Warranty scope description
A: Our warranty is valid for defects caused by manufacturing flaws. Damage resulting from contaminated hydraulic oil, improper installation operation, cavitation corrosion and long‑time overload working will not fall within warranty coverage. Please strictly comply with Hitachi official service manual during overhaul work.