Kawasaki K7V63DTP-159R bomba hidráulica para Sumitomo SH120A5 SH130-5 SH130-6 excavadora midi
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Contactos del vendedor
+86 189 289...
+86 189 2896 5241
China
China
China
Product Overview
This aftermarket variable displacement axial piston main pump acts as the core power source for Sumitomo SH120A5, SH130‑5 and SH130‑6 excavator hydraulic circuits. It converts engine mechanical power into high‑pressure hydraulic oil flow, supplying power for boom lifting, arm crowding, bucket curling, track travelling and upper structure slewing. These excavators commonly work in earth excavation, site backfilling, road construction and municipal renovation projects. Under long‑time heavy‑duty cycles, internal components such as cylinder block, piston shoes and valve plate will suffer gradual abrasion. Typical failure manifestations include insufficient digging force, slow implement movement, high hydraulic system temperature, abnormal pump noise and obvious internal leakage. This aftermarket main pump is manufactured according to original hydraulic structure and installation dimensions, realizing direct replacement for worn original pump, effectively restoring machine overall working performance and preventing secondary damage to other hydraulic components.
Core Advantages
1. Optimized friction pair material adapts to continuous heavy‑load site operation
Key friction components including piston shoes, cylinder block and valve plate adopt high‑quality alloy raw material with special surface hardening treatment. It greatly improves anti‑wear performance when working under high pressure, reducing abrasion risk caused by tiny impurities mixed in hydraulic oil. The pump can keep stable output under long‑duration alternating load of digging and travelling.
2. Matched regulator assembly guarantees sensitive power response
The built‑in regulator strictly copies original pressure‑flow control logic. It can reasonably match engine output power and hydraulic flow. When excavator carries out compound actions, it avoids power overflow and system overheating, making boom, arm and bucket movements coordinated and smooth, improving operating efficiency for daily construction work.
3. Complete interchangeable mounting structure reduces on‑site overhaul period
Overall outer dimension, bolt hole position, high‑low pressure oil port and regulator connection interface are fully consistent with OEM pump. Maintenance technicians can finish disassembly and installation directly on the machine. There is no requirement for cutting, welding or extra pipeline adjustment, lowering machine downtime and construction project loss for repair shops and equipment owners.
4. Strict internal clearance control suppresses internal leakage
Each mating part is processed with high‑precision grinding technology. Assembling clearance is controlled within reasonable tolerance range. It effectively restrains internal leakage inside pump body, solving machine faults such as weak digging force and slow cylinder action caused by pump wear. It extends service cycle between two overhauls.
5. Cost‑effective solution for equipment fleet maintenance
Comparing with expensive original OEM hydraulic pump, this aftermarket unit reaches practical working performance for daily construction. It is a preferred replacement choice for repair workshops, rental machine fleets and global Sumitomo excavator spare‑parts dealers, helping users control equipment maintenance budget.
Manufacturing & Quality Control
Our production base focuses on research and production of excavator main hydraulic piston pumps. The whole quality flow includes raw material incoming inspection, component dimension checking, heat‑treatment hardness detection, semi‑finished product screening and finished‑product hydraulic bench test. Every finished pump will pass pressure, flow and noise simulation test before delivery, to eliminate unqualified products. After anti‑rust oil spraying, products are wrapped with shock‑proof cushion material and packed in standard export carton or wooden case, to resist collision and moisture erosion during cross‑border sea and land transportation. We support sample purchase, small‑batch trial order and large‑volume wholesale for global customers.
Frequently Asked Questions
Q1: What symptoms mean this main hydraulic pump needs to be replaced?
A: When your Sumitomo excavator appears obvious insufficient digging power, slow boom and arm movement, loud abnormal noise from pump chamber, continuous high hydraulic oil temperature, and these faults cannot be solved by adjusting regulator or replacing filter elements, you need to inspect or replace the main hydraulic pump.
Q2: Can this pump be installed directly on SH130‑6 excavator?
A: It is designed as direct aftermarket replacement for K7V63DTP‑159R. Please confirm your old pump model and part number before purchase. Even for same machine model, there may be different pump configurations for different production batches.
Q3: What precautions should be followed after hydraulic pump replacement?
A: Thoroughly clean hydraulic oil tank, replace all hydraulic filters and use qualified hydraulic oil. Discharge air inside hydraulic pipeline after installation. Perform low‑speed no‑load running‑in first, then gradually carry out load test, avoid full‑load violent operation at the very beginning.
Q4: About product warranty range
A: Our warranty covers manufacturing and raw‑material defects. Damage induced by hydraulic oil pollution, wrong oil type, foreign matter entering pump inner cavity, over‑load operation and wrong installation operation is not within warranty scope. Please operate and maintain in accordance with excavator official service manual.