K3V140 Hydraulic Pump for Excavator spare parts

Short Description:

The K3V140 hydraulic pump is a large-displacement swash plate variable plunger pump, serving as the original core power component for 30–36 ton heavy-duty excavators.

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Product Detail

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description

The K3V140 hydraulic pump adopts an upgraded heavy-duty integral swash plate variable structure, with all core friction pairs including plunger, cylinder block and valve plate processed by ultra-precision grinding technology. The internal assembly clearance is strictly controlled within the factory standard range, ensuring extremely low friction loss and excellent wear resistance during long-hour high-load operation. The internal flow channel is optimized with fluid dynamic polishing treatment, which greatly reduces hydraulic oil circulation resistance and energy loss, effectively controlling working temperature rise and improving hydraulic response sensitivity and compound action coordination. The pump body is integrally cast with high-density ductile iron, featuring super compression resistance, impact resistance and vibration resistance, adapting to extreme harsh working environments such as quarry gravel impact, mud-water immersion, long-term high-frequency vibration and alternating heavy and light loads.

product parameters

Product Model: K3V140 Hydraulic Main Pump

Product Type: Swash Plate Variable Displacement Plunger Pump

Applicable Equipment: 30–36 Ton Heavy-Duty Excavators

Structural Features: Heavy-Duty Integral Casting, Ultra-Precision Friction Pair, Sensitive Variable Adjustment, Low Heat Generation, Impact Resistant

Core Material: High-Density Ductile Iron Shell + High Wear-Resistant Alloy Core Components

Working Performance: Super High Pressure Stability, Fast Hydraulic Response, Low Temperature Rise, Strong Anti-Fatigue

Core Functions: Provide Ultra-High Power Hydraulic Output, Support Full-Load Heavy-Duty Operations, Improve Mining and Large-Scale Earthwork Efficiency

Applicable Scenarios: Quarry Mining, Mountain Excavation, Large Foundation Pit, Mass Earthwork Backfilling, Key Municipal Projects

Matching Parts: Excavator Main Control Valve, Heavy-Duty Hydraulic Pipeline, Pilot Pump, Gear Pump Assembly

advantages

Super Large Displacement, Abundant Heavy-Load Power: With 140ml/r large displacement design, the K3V140 main pump provides ultra-large hydraulic flow and high-pressure output. It solves the power shortage problem of medium and small displacement pumps in mining stone breaking and hard soil deep excavation, ensuring continuous and powerful output for full-load heavy-duty operations of 30-ton class excavators.
High-Precision Variable Adjustment, Smooth Compound Action: Adopting mature heavy-duty variable control technology, the pump can adaptively adjust flow and pressure according to real-time load changes. The switching between light load and heavy load is smooth without stuttering, effectively improving the problems of slow response and uncoordinated linkage of large excavator booms and arms after long-term aging.
Excellent Heat Dissipation, Strong Sustained Operation Capacity: The optimized internal flow structure reduces hydraulic energy loss and heat accumulation. Even after long hours of non-stop full-load mining operations, the oil temperature rises slowly, avoiding power limitation, speed reduction and shutdown failures caused by hydraulic overheating protection.
Ultra-Wear-Resistant Core, Stable Pressure Holding: The core friction pairs are made of high-hardness wear-resistant alloy with precision grinding process, which minimizes internal wear. It effectively avoids system pressure drop and hydraulic drifting caused by internal leakage, keeping the whole hydraulic system stable under long-term cyclic heavy load.

FAQ

Q1: What kind of excavators does the K3V140 hydraulic pump fit?
A: The K3V140 hydraulic main pump is specially designed for 30–36 ton heavy-duty excavators. It is a mainstream large-displacement pump for heavy machinery, widely compatible with most 30-ton class mainstream excavators, and mainly used for heavy-load scenarios such as quarry mining and large-scale earthwork.
Q2: What symptoms mean the K3V140 main pump needs replacement?
A: If the excavator has weak mining digging force, slow full machine compound actions, weak traveling power, frequent pressure drop under heavy load, excessively high hydraulic oil temperature and jittery linkage, the original main pump is severely worn and loses pressure holding capacity, requiring timely replacement.
Q3: Is equipment modification required for K3V140 pump replacement?
A: No modification is needed. The K3V140 pump is strictly produced according to original factory standards with consistent hole positions and interface sizes, supporting direct plug-and-play installation to meet on-site rapid maintenance requirements.
Q4: What is the difference between K3V140 and K3V112 pumps?
A: The K3V140 has larger displacement and higher pressure resistance, designed for 30–36 ton ultra-heavy-duty excavators. The K3V112 is only suitable for 20–25 ton medium and large excavators with limited heavy-load performance and cannot adapt to large-tonnage mining working conditions.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.