مضخة هيدروليكية Kawasaki K3SP36B لـ حفارة صغيرة Kobelco SK60SR

SK60SR Hydraulic Main Pump | K3SP36B Axial Piston Pump | Kobelco Mini Excavator Aftermarket Spare Parts

Product Brief
This K3SP36B variable‑displacement axial piston pump serves as the core hydraulic power source for Kobelco SK60SR compact excavator. Optimized for narrow‑space construction tasks including municipal trenching, backyard excavation, pipeline laying and urban site cleanup, this compact main pump converts engine power into adjustable high‑pressure hydraulic flow to support bucket digging, boom movement, swing and combined multi‑function actions. Manufactured as aftermarket replacement accessory from professional pump manufacturer, this unit is widely stocked by overseas repair workshops, equipment rental firms and cross‑border spare‑part distributors for hydraulic system overhaul and direct pump swap.
Compact‑size excavators often operate under frequent start‑stop, short‑cycle loading and high‑dust working conditions. Over service time, the main pump suffers cylinder block scuffing, piston shoe abrasion, valve‑plate scratching and progressive internal leakage. Typical failure symptoms cover insufficient digging output, sluggish boom and arm response, weak traveling performance, continuous hydraulic oil overheating, obvious vibration and whining noise generated from pump housing, together with pressure drop after machine gets hot. Sudden pump breakdown will halt small‑scale construction jobs and bring extra emergency maintenance cost for end‑users.
Our aftermarket K3SP36B hydraulic pump strictly follows OEM specifications for mounting flange dimension, input‑shaft spline, valve‑group installation layout and factory pressure preset value. No cutting, drilling or extra adapter modification is needed for on‑site replacement, direct fit installation effectively cuts machine downtime. Compared with high‑cost genuine pump assemblies with long delivery lead‑time, this factory‑produced aftermarket pump delivers consistent hydraulic output performance, satisfying bulk‑order procurement demands for compact excavator spare‑part merchants.
passages

Unique Product Competitive Advantages
1. Precise overall parameter matching for Kobelco SK60SR compact excavator hydraulic system
Produced in accordance with original drawing standards, this main pump keeps consistent shaft spline parameters, oil port position and pressure setting values. Precisely lapped friction pairs greatly restrain internal leakage after assembly. No secondary machining work is required during field installation.
2. Reinforced friction‑pair processing to adapt to frequent short‑cycle operation
Many low‑cost substitute pumps face rapid performance attenuation under frequent start‑stop and load fluctuation. Our core internal components adopt mature quenching and fine‑grinding craftsmanship, improving wear‑resistance under cyclic variable‑load conditions. It helps fleet owners reduce pump replacement frequency for heavily‑used SK60SR compact machines.
3. Full‑set bench performance verification before shipment to eliminate hidden on‑site risks
Each finished hydraulic pump passes pressure endurance test, flow calibration and tightness leakage inspection on dedicated hydraulic test bench prior to packing. Defective products are screened out inside factory, lowering re‑work burden for maintenance technicians and avoiding unexpected jobsite shutdown losses.
4.Practical aftermarket solution to control compact‑excavator maintenance expenditure
Genuine OEM main pumps for SK60SR come with high purchasing expense and lengthy delivery cycle. Our factory‑direct‑supply aftermarket pump achieves comparable stability and system compatibility, cutting annual overhaul cost for enterprises running multiple mini‑excavator fleets.
5.Multiple flexible logistics options for global wholesale purchasers
In‑stock items can be dispatched quickly upon payment confirmation. Air freight supports urgent breakdown repair orders; consolidated sea freight and full‑container service provide cost‑saving choices for long‑term bulk importers.

Factory Production Strength
Our manufacturing plant specializes in R&D and mass‑production of aftermarket hydraulic main pumps, travel motors and swing motors for mini‑to‑medium excavator brands. We own complete production workflows: alloy‑steel forging, precision grinding, professional heat‑treatment and finished‑product hydraulic bench testing. Dedicated simulation equipment reproduces real‑world short‑cycle variable‑load working state of compact excavators to optimize component wear resistance and pressure stability. Our hydraulic spare‑parts are exported to multiple overseas regions and maintain long‑term stable partnerships with global construction‑machinery spare‑part wholesalers.

Frequently Asked Customer Questions
Q1: Can this K3SP36B main pump fit other Kobelco excavator models besides SK60SR?
A1: Cross‑model installation is not recommended. Different compact excavator main pumps differ in shaft spline, flange dimension and pressure calibration parameters. Please double‑confirm machine model and part number before placing orders.
Q2: What hydraulic failures can this main pump solve?
A2: It resolves faults caused by worn pistons, scratched valve plate and damaged internal components: weak digging power, slow compound movements, high hydraulic oil temperature, internal leakage and abnormal whining or vibrating noise of main pump.
Q3: Is quantity‑based discount available for bulk‑volume orders?
A3: Yes, tier‑based preferential price is offered according to purchase quantity. We can arrange full‑container sea shipment to reduce overall logistics cost.
Q4: What packaging solution is adopted for long‑distance overseas transportation?
A4: Anti‑rust oil is evenly coated on all metal surfaces. The whole pump is wrapped with waterproof shock‑proof PE film, then secured inside reinforced export‑grade plywood case, preventing collision deformation and moisture corrosion during long‑haul transit.