Energy‑Saving Performance
Automatic displacement adjustment reduces energy and hydraulic oil waste while keeping the whole hydraulic system stable in operation.
APV-A10VNO-63
APV-A10VNO Series Axial Piston Variable Pumps
Size NG
63
Displacement
63 cm³/rev
Speed
2700 rpm
Flow
170 L/min
Nominal pressure
210 bar
Max. Pressure
250 bar
Weight (approx.)
18 kg
Products and performance
The APV-A10VNO series constant displacement axial piston pumps utilize advanced swashplate variable displacement technology, providing reliable and efficient hydraulic performance for heavy-duty industrial systems. By adjusting the swashplate angle to change the piston stroke, the pump can flexibly adjust its displacement and precisely adapt to the constantly changing hydraulic power and torque requirements under different operating conditions, thus achieving excellent controllability and operating efficiency. This series of pumps operates from 2700 to 3200 rpm, enabling flexible system-adaptive displacement adjustment for energy-saving flow control.
The NG63 pump has a displacement of 63 cm³/rev, a rated speed of 2700 rpm, and a maximum stable flow rate of 170 L/min. Its rated operating pressure is 210 bar, with a peak pressure reaching 250 bar, allowing for continuous high-pressure operation under harsh conditions.
The APV-A10VNO series pumps feature excellent high torque output and stable variable flow performance; flow rate is proportional to transmission speed and displacement. They are widely used in agriculture, industry, forestry, and other fields, providing efficient, stable, and energy-saving hydraulic support.
The NG63 pump has a displacement of 63 cm³/rev, a rated speed of 2700 rpm, and a maximum stable flow rate of 170 L/min. Its rated operating pressure is 210 bar, with a peak pressure reaching 250 bar, allowing for continuous high-pressure operation under harsh conditions.
The APV-A10VNO series pumps feature excellent high torque output and stable variable flow performance; flow rate is proportional to transmission speed and displacement. They are widely used in agriculture, industry, forestry, and other fields, providing efficient, stable, and energy-saving hydraulic support.
Specifications
APV-A10VNO-63 General Information
The optimized NG63 mounting specification ensures simple assembly, flexible layout and good compatibility with standard hydraulic installation interfaces.
63 cm³/rev displacement realizes sufficient oil delivery, supports flexible flow tuning and matches medium power demand for diversified working cycles.
The 2700 rpm rated rotating speed achieves quick dynamic response, adapts to frequent load changes and meets continuous operation requirements.
Consistent 170 L/min flow output feeds stable hydraulic oil to actuators, smoothens component movement and shortens overall working cycle time.
210 bar stable nominal working pressure provides steady continuous power, suitable for general heavy loads and extends service life of the whole system.
250 bar peak pressure resistance absorbs instantaneous load spikes, delivers reliable overload protection and improves system anti-impact capability.
Lightweight 18 kg structure reduces load on host equipment, facilitates manual handling and supports compact machine structural design.
With multi-scene adaptability for moderate working conditions, it serves hydraulic systems in agriculture, industry, forestry and other sectors.
Product Features of APV-A10VNO Series Variable‑Displacement Axial Piston Pumps
Energy-saving Operation：Adaptive displacement regulation cuts power consumption and hydraulic fluid loss effectively.
High Hydraulic Efficiency：Tuned power delivery helps lift the comprehensive working efficiency of the complete hydraulic system.
Precise Control：Sophisticated variable displacement technology enables high-accuracy regulation for hydraulic circuits.
Improved Equipment Stability：Optimized working characteristics boost the positioning precision and operational stability of host machines.
Strong Adaptability：Maintains dependable operation when exposed to various tough and complicated working environments.
High Operational Reliability：Supplies continuous, stable hydraulic power with outstanding long-term running consistency.
Stable System Performance：Dynamic displacement regulation keeps the whole hydraulic system operating in a balanced state.
Excellent Comprehensive Performance：Achieves a good balance of energy efficiency, control precision and service life for heavy-duty applications.
How to repair the mating pair of piston ball head and slipper inner ball socket.
- The factory assembly clearance between piston ball head and slipper ball socket is normally 0.015~0.025 mm.
- After prolonged service, the clearance enlarges. Parts can still be used if the clearance does not exceed 0.3 mm.
- Overlarge clearance will cause increased pulsation of pump outlet pressure and flow.
- In serious cases, loose slippers and slipper detachment may happen, further resulting in severe pump damage.
- Once signs of pressure and flow pulsation are detected, inspect slipper looseness in advance and conduct slipper re-clinching promptly.
How to repair the swash plate (thrust plate).
- After long-term operation, concave deformation will form on the flat surface of the swash plate.
- The workpiece can be surface-ground followed by nitriding treatment.
- If the removed material thickness (e.g. 0.2 mm) does not completely eliminate the original nitrided layer, re-nitriding may be omitted.
- Hardness inspection of the swash plate surface is mandatory in such cases.
What are the precautions for bearing replacement?
- Excessive bearing internal clearance will break the normal clearance of friction pairs and damage the oil film thickness of hydrostatic support, shortening the service life of piston pumps.
- The average service life of general bearings reaches 1000 hours (roughly more than two years). Bearings shall be replaced as appropriate after exceeding this service period.
- Replace with bearings of the identical model marked on the removed old bearing, or verified interchangeable alternatives.
- If grooves are scratched on the swash plate surface by piston ball heads (applicable to radial piston pumps), laser cladding with alloy powder is recommended for repair.
- Laser cladding ensures high bonding strength and hardness of deposited material without reducing the hardness of surrounding base metal.
- Manual overlay welding with chromium-type welding electrodes is an alternative method. The repaired swash plate surface requires re-heat treatment, preferably in a nitriding furnace.
- Regardless of the repair method adopted, the original dimensional accuracy, hardness and surface roughness of the swash plate must be restored.
Low oil Level Inclination Angle-Front Up
45 °
Low oil Level Inclination Angle-Back Up
45 °
Low oil Level Inclination Angle-Fuel Pump Side Up
45 °
Low oil Level Inclination Angle-Exhaust Side Up
45 °
Oil Sump Capacity-Upper Limit
14.2 L
Oil Sump Capacity-Lower Limit
12.4 L
Capacity of The Whole System
16.4 L
No Oil Suction / No Oil Discharge — Causes & Solutions
Main Causes and Troubleshooting Methods for Hydraulic Pump No Oil Suction / No Oil Discharge
- Damage to the hydraulic pump, pump motor, or coupling between motor and pump. Replace the faulty pump, motor or coupling in a timely manner.
- Too low oil level in the tank or excessively high pump installation position causes suction failure. Refill oil to the gauge level or adjust the pump height to keep the suction lift within the specified range.
- Oil impurities and increased viscosity block the suction filter and oil pipe. Clean pipes and filters regularly and replace with qualified hydraulic oil as required.
- Oil impurities and increased viscosity block the suction filter and oil pipe. Clean pipes and filters regularly and replace with qualified hydraulic oil as required.
Insufficient Pressure & Reduced Efficiency — Causes & Solutions
Main causes and troubleshooting methods for hydraulic pumps discharging oil but lacking pressure and exhibiting reduced efficiency.
- Severe wear of internal sliding parts leads to low volumetric efficiency and excessive axial/radial clearance. Replace the hydraulic pump or perform complete overhaul.
- Damaged oil pipes and poor suction-side sealing cause air intake. Check all connections, reseal joints or replace damaged pipelines.
- Blocked oil pipes and heavily contaminated filters. Clean pipelines and filters thoroughly to ensure full flow cleanliness.
- Incorrect variable pump adjustment and severely worn relief valve spool. Readjust flow parameters and replace worn relief valve components for stable pump operation.
- Motor speed below rated value and internal foreign impurities. Match the correct motor per specifications and clean internal impurities timely.
Severe Noise During Hydraulic Pump Operation — Causes & Solutions
Major Causes of Excessive Noise During Hydraulic Pump Operation and Methods for Troubleshooting
- Mostly caused by clogged filter, low oil level, air inhalation via oil seal and pipelines. Check tank oil level, repair pipelines, inspect pump seals, clean pipes and filters, and replace hydraulic oil periodically.
- Excessively high oil viscosity, low oil temperature and entrained air bubbles. Select suitable hydraulic oil according to seasons.
- Damaged coupling or misalignment between pump and motor leads to heavy vibration and loud noise. Inspect coupling wear, replace coupling and complete alignment strictly as installation requirements.
- Operating speed exceeds rated value and mismatched driving motor. Reduce pump speed and select a suitable motor.
- Worn shaft seal causes air intake; loose pump end cover bolts. Replace pump shaft seal and tighten cover bolts.
- Low gear precision, poor contact or damaged internal parts of gear pump. Replace or grind gears, renew damaged components.
- Insufficient axial clearance, out-of-tolerance perpendicularity or parallelism. Replace the gear pump entirely.
- Blockage inside relief valve. Clean or replace the relief valve.
- Vibration generated by unfixed pipelines. Secure all hydraulic pipelines firmly.
Hydraulic Pump Housing Oil Leakage — Causes & Solutions
Main Causes of Oil Leakage from Hydraulic Pump Bodies and Methods for Rectification
- Failure of the piston pump central spring breaks sealing between cylinder block and valve plate. Replace the spring and re-seal the mating surface.
- Damaged oil seals or worn/poorly fitted gaskets at pipeline connections. Replace all defective sealing parts.
- Severe wear of internal pump parts resulting in oversized operating clearances. Replace or refit the relevant components.
Excessive Temperature of Hydraulic Pump — Causes & Solutions
Main Causes of Hydraulic Pump Overheating and Troubleshooting Methods
- Excessively high or low oil viscosity, and accumulated impurities after long service. Replace hydraulic oil in a timely manner and adopt oil with proper viscosity.
- Heavy wear between pump side plates, shaft sleeves and gear end faces leads to overheating. Replace side plates, shaft sleeves or install a new hydraulic pump.
- Small tank volume restricts heat dissipation and triggers high oil temperature. Increase tank capacity and expand heat dissipation area.
Other Models
85cm³/rev
Speed
2700 rpm
Flow
230 L/min
Weight (approx.)
22 kg
Nominal pressure
210 bar
63cm³/rev
Speed
2700 rpm
Flow
170 L/min
Weight (approx.)
18 kg
Nominal pressure
210 bar
41cm³/rev
Speed
2900 rpm
Flow
119 L/min
Weight (approx.)
14 kg
Nominal pressure
210 bar
28cm³/rev
Speed
3200 rpm
Flow
90 L/min
Weight (approx.)
11.5 kg
Nominal pressure
210 bar
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With full ranges of emission standard from Euro 2 to Euro 7, Dongfeng Cummins producing 12 series automotive engines, started from 3.9 liter engine, to 15 liter engine, covering the power range of 125HP to 650HP.
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Even with same engine model, different SO number engine can have very different configuration with each other, with different prices. Some of SO-Shop Order is not available for commercial market, such as restricted models (Usually for military specifications).
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Power OutPut
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Max Torque
610 Nm
Displacement
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6 Inline
5.9L
Fuel System
Bosch Mechancial Pump
Emission Standard
Euro II
02. What's the Available Optional Items?
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04. Engine Parts & Recommended Wear and Tear Parts
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