Hidraulinis siurblys Kawasaki K3V112DTP-9P12 31N6-10051 ekskavatoriaus Hyundai R225-9
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Product Brief
This K3V112DTP‑9P12 electronically controlled dual‑variable axial piston pump, part number 31N6‑10051, serves as the core power source for Hyundai R225‑9 22‑ton class excavator. Built for urban earth‑moving, road widening, foundation excavation and material stacking jobsites, it transforms engine mechanical power into adjustable high‑pressure hydraulic flow to drive digging, lifting, swing and travelling movements. This OEM‑grade replacement assembly is highly favored by equipment rental companies, field maintenance workshops and cross‑border spare‑part distributors across Africa, Central Asia and Southeast Asia for complete pump overhaul and direct component swap.
Under long‑duration variable‑load and high‑temperature operating conditions, the main pump will gradually suffer cylinder block galling, piston shoe erosion, valve plate surface scratching and rising internal leakage. Typical failure performances include weakened digging thrust, delayed combined action response, unstable travel speed, continuous hydraulic oil overheating, obvious metallic knocking noise from pump housing and power drop after machine warms up. Unpredicted pump failure will interrupt construction progress and bring high emergency repair costs for project operators and fleet owners.
Our OEM‑grade hydraulic pump strictly follows original drawing specifications for mounting flange dimension, spline tooth profile, proportional solenoid interface and system pressure calibration. No cutting, drilling or extra adapter modification is required during on‑site replacement, supporting direct drop‑in installation and minimizing equipment downtime. Comparing with long‑lead‑time genuine OEM units with high purchase cost, this factory‑produced OEM‑grade pump delivers matched system compatibility and stable output performance under wholesale price, well‑suited for bulk procurement for medium‑size excavator spare‑part merchants.
Unique Product Competitive Advantages
1. Full‑spec match for Hyundai R225‑9 electronic hydraulic control system, not universal for other excavator series
Manufactured according to OEM technical standards, this main pump keeps consistent oil port layout, solenoid mounting position and pressure setting parameters. Precisely lapped friction pairs effectively suppress internal leakage after assembly. No secondary machining work is needed for field installation.
2. Strictly‑selected friction pair raw materials to extend service life under cyclic medium‑heavy load conditions
Many low‑cost substitute pumps will produce obvious pressure attenuation after limited working hours due to inferior internal friction components. Our core functional parts adopt standardized quenching and fine‑grinding craft, improving anti‑wear capacity under frequent load fluctuation. It helps equipment fleet operators reduce overall pump replacement frequency for heavily‑utilized R225‑9 units.
3. Complete multi‑dimensional bench testing before shipment to eliminate hidden on‑site failure risks
Every finished hydraulic pump passes pressure endurance test, flow calibration and tightness leakage inspection on professional hydraulic test bench before packing. Defective products are screened out inside factory, avoiding maintenance rework burden and unexpected jobsite shutdown losses for end‑users.
4. OEM‑grade alternative solution to control medium‑size excavator maintenance budget
Genuine OEM main pumps for Hyundai R225‑9 carry high procurement cost and lengthy delivery cycle. Our OEM‑grade replacement pump achieves comparable working stability and system matching performance, cutting annual overhaul expenditure for enterprises managing multiple medium excavator fleets.
5. Flexible global logistics solutions for wholesale purchasers
In‑stock goods can be dispatched rapidly upon payment confirmation. Air freight supports urgent breakdown repair orders; consolidated sea freight and full‑container service provide cost‑saving options for long‑term bulk importers.
Factory Production Strength
Our manufacturing facility focuses on R&D and volume production of OEM‑grade & aftermarket hydraulic main pumps, travel motors and swing motors for mainstream excavator brands. We have complete production workflows covering alloy steel forging, precision grinding, professional heat‑treatment and finished‑product hydraulic bench test. Dedicated simulation test equipment reproduces real‑world construction variable‑load working status to continuously optimize component wear resistance and pressure stability. Our hydraulic assemblies are exported to multiple overseas regions and maintain long‑term stable cooperative relationships with global construction machinery spare‑part wholesalers.
Frequently Asked Customer Questions
Q1: Can this 31N6‑10051 K3V112DTP‑9P12 main pump fit excavator models other than Hyundai R225‑9?
A1: Cross‑model installation is not supported. Different excavator models adopt main pumps with different flange sizes, solenoid parameters and pressure calibration values. Please double‑check machine model and OEM part number before placing orders.
Q2: What hydraulic malfunctions can this main pump resolve?
A2: It fixes faults triggered by worn pistons, scratched valve plate and damaged internal components: weak digging power, sluggish compound movements, unstable travel speed, high hydraulic oil temperature, internal leakage and abnormal knocking noise of main pump.
Q3: Are tiered preferential prices available for large‑volume bulk orders?
A3: Yes, volume‑based discount policy applies according to purchase quantity. We can also arrange full‑container sea shipment to reduce comprehensive logistics costs.
Q4: What packaging measure is adopted for long‑distance ocean‑going transportation?
A4: Anti‑rust oil is evenly coated on all metal surfaces. The whole pump is wrapped by waterproof shock‑resistant PE film, then secured inside reinforced export‑grade plywood case, to prevent collision deformation and moisture corrosion during long overseas transit.