Kawasaki YN10V00070F1 bomba hidráulica para Kobelco SK220SDLC excavadora midi

SK220SDLC Hydraulic Pump for Excavator spare parts YN10V00070F1 Axial Piston pump

Product Overview

This tandem variable axial‑piston main pump serves as the core hydraulic power assembly engineered for Kobelco SK220SDLC medium crawler excavator. Designed with built‑in pilot pump unit, this complete pump assembly delivers high‑pressure regulated oil flow to fulfill boom lifting, arm crowding, bucket breakout, track travelling and upper‑structure slewing operations. Widely deployed in large‑scale earth‑moving, quarry stockpile handling, roadbed construction and infrastructure foundation excavation projects. Under long‑term heavy‑load cyclic operation, hydraulic oil contamination together with continuous thermal stress will gradually wear internal precision components including cylinder block, piston shoe assemblies, valve plate and drive shaft. Obvious failure symptoms include insufficient digging breakout force, uncoordinated compound movements, distinct resonant whining noise emitted from pump housing, sustained rise of hydraulic oil temperature and persistent external seal oil seepage. Manufactured strictly according to original mounting dimension standards and hydraulic characteristic curves, this replacement pump supports direct drop‑in installation, helping repair depots and equipment operators restore full‑range machine performance without the high cost and lengthy lead‑time of genuine factory assemblies.

Core Advantages

1. Optimized friction pair for heavy‑duty medium excavator working conditions
Key mating components such as cylinder block, piston shoes and valve plate adopt premium alloy raw material and multi‑phase thermal‑treatment process. Strictly controlled fitting clearance effectively lowers internal leakage and unstable flow fluctuation. Excellent anti‑cavitation performance maintains steady output even if hydraulic fluid carries fine solid contaminant particles, slowing component fatigue under dusty, high‑intensity construction site surroundings.

2. Bench‑calibrated electronic proportional regulator for rapid dynamic load response
Each finished pump undergoes full‑range pressure‑flow debugging on professional hydraulic test bench. Regulator setting parameters keep highly consistent with OEM benchmarks, which can sensitively respond to real‑time load variation during digging and material‑loading cycles. Integrated pilot pump supplies stable pilot control pressure for joystick manipulation, efficiently eliminating operating jitter and movement lag caused by insufficient pilot pressure supply.

3. Duplicated original mounting layout to reduce project downtime losses
Mounting flange dimension, spline shaft specification, oil port arrangement and regulator installation positions are fully replicated from original spare parts. Field maintenance technicians can finish pump swapping directly without reworking pipeline layout or resetting complicated hydraulic system parameters. For large‑scale rental fleets and local repair centers, it greatly shortens machine stand‑still period and mitigates economic losses brought by construction project interruption.

4. Reinforced housing and multi‑layer sealing protection mechanism
Integral high‑density cast iron housing absorbs strong pressure impulse and mechanical vibration generated during frequent heavy‑load excavation cycles. High‑grade combined sealing assemblies prevent high‑pressure hydraulic oil outward leakage, meanwhile block construction silt, gravel and humid moisture from invading pump inner chamber, protecting internal precision components against secondary abrasive wear damage.

5. Cost‑competitive maintenance option for medium‑size excavator fleets
Genuine original main pump features high procurement expense and long order lead‑time. This aftermarket assembly delivers reliable comprehensive performance at competitive price level. It turns out to be an ideal sourcing selection for repair garages, equipment rental operators and global Kobelco medium excavator spare‑parts wholesalers.

Manufacturing & Quality Control

Our production workshop focuses on manufacturing aftermarket hydraulic pump assemblies for Kobelco 20‑ton‑class excavators. Full‑process quality supervision covers raw‑material incoming inspection, heat‑treatment hardness verification, critical dimension detection, assembling check and finished‑product hydraulic bench test, including pressure‑holding, flow output, noise inspection and cyclic load simulation. Only fully qualified products can proceed to packaging workflow. Completed pumps are coated with anti‑rust preservation oil, wrapped with shock‑absorbing cushion materials and packed in export‑compliant fumigated wooden cases, avoiding scratch, deformation and rust deterioration throughout long‑distance sea‑land logistics. We support bulk wholesale, stable batch supply, small trial orders are acceptable for worldwide purchasers.

Frequently Asked Questions

Q1: What abnormal phenomena indicate main pump inspection or replacement?
A: If your Kobelco SK220SDLC excavator presents weak digging breakout force, sluggish compound movements, obvious abnormal noise around main pump, rapid hydraulic oil overheating, or metallic powder is detected inside hydraulic filter element, system pressure test and pump disassembly inspection should be carried out in a timely manner.

Q2: Can this hydraulic pump fit other excavator models?
A: This assembly is mainly applied for Kobelco SK220SDLC, also compatible with partial SK200‑10 / SK210‑10 series machines with matching configuration. Internal regulator and pipeline interfaces differ among different machine versions. Please double‑confirm your original part number YN10V00070F1 before placing order to prevent installation mismatch.

Q3: Which critical points deserve attention during installation work?
A: Thoroughly clean hydraulic oil tank, pipelines and oil cooler, fit brand‑new hydraulic oil and all filter cartridges. Keep assembling environment clean to stop contaminants entering pump inner cavity. After installation completion, perform hydraulic system air exhaust and low‑speed no‑load running test before putting machine into formal construction operation.

Q4: Warranty scope explanation
A: Our warranty covers defects originating from manufacturing flaws. Damage induced by contaminated hydraulic oil, improper installation operation, cavitation corrosion and long‑time overload service will not fall within warranty coverage. Please strictly follow Kobelco official service manual during overhaul procedures.