Axial Piston Pump-Motor
NP-107A
Price on request
Axial Piston Pump-Motor
Out of stock
Description
NP-107A as an aircraft hydraulic pump-motor
The NP-107A is an aircraft axial piston hydraulic machine designed for high-pressure hydraulic systems. The unit can operate both as a pump and as a hydraulic motor, depending on the system connection and operating mode. In pump mode, it converts mechanical shaft rotation into hydraulic flow. In motor mode, it uses hydraulic energy to produce mechanical rotation. This dual-purpose design makes the NP-107A a specialized hydraulic unit for aircraft systems where reversible or power-transfer operation is required.
Pump and hydraulic motor function of NP-107A
In pump mode, the NP-107A generates working fluid flow under pressure for hydraulic system consumers. In motor mode, the unit receives pressurized fluid and converts it into torque at the output shaft. The working displacement is 56 cm³, and the nominal system pressure is 21 MPa / 210 kgf/cm². This makes the unit suitable for heavy-duty hydraulic circuits where compact size, high torque and high-pressure operation are required. Shaft rotation direction in pump mode is clockwise according to the supplied data.
NP-107A on An-124 and An-225 aircraft
The NP-107A is used in the hydraulic systems of heavy transport aircraft such as An-124 Ruslan and An-225 Mriya. In aviation use, it is associated with special equipment hydraulic circuits. One of its roles in hydraulic motor mode is to drive the cable-rope extension and retraction system used for special cargo or aircraft rope-handling equipment. Because these aircraft operate with large and heavy onboard systems, the hydraulic unit must provide stable torque and pressure under demanding load conditions.
Auxiliary scavenge pump function of NP-107A
The NP-107A includes an additional scavenge pump. This auxiliary pump provides circulation and removal of heated working fluid from the bodies of main hydraulic pumps through heat exchangers back to the hydraulic tank. Its approximate delivery is about 10 L/min according to the supplied description. This function helps protect the hydraulic system from overheating and supports stable fluid temperature. In practical maintenance, the scavenge section should be checked separately from the main pump-motor section.
Working fluid and temperature conditions for NP-107A
The NP-107A operates with aviation hydraulic fluid, typically AMG-10 in aircraft hydraulic systems where specified. The unit is designed for a wide temperature range from −60 to +125 °C. This is important for heavy aircraft that may operate in different climates and at high altitude. Fluid cleanliness, viscosity and temperature control directly affect the piston group, bearings, seals, regulator mechanism and auxiliary scavenge pump. Contaminated or overheated fluid can quickly reduce serviceability.
Industrial use of NP-107A
Outside aviation, the NP-107A is also used in industrial hydraulic systems because of its high pressure capability and robust design. It may be installed in hydraulic drives for forging presses, stamping machines, casting equipment, machine tools and volumetric hydraulic transmissions. In such applications, units are often taken from aircraft storage or surplus stock and adapted for industrial equipment. For non-aircraft use, connection dimensions, shaft rotation, working fluid, cooling and filtration must be checked carefully before installation.
Design and installation features of NP-107A
The NP-107A is a variable-displacement axial piston hydraulic machine with a regulated delivery mechanism. It has a drive shaft, hydraulic ports, drain connection and mounting surfaces for installation in the aircraft or industrial hydraulic system. The unit may include external fittings that affect overall installation dimensions. During inspection, attention should be paid to shaft condition, flange surfaces, port threads, seals, leakage, scavenge pump operation and any signs of overheating or contamination.
Supply and documentation for NP-107A
For supply or replacement, the full designation NP-107A / НП-107А should be used. It is also useful to specify whether the unit is required for aircraft use, industrial use, repair, overhaul or bench installation. Since the NP-107A can work both as a pump and as a hydraulic motor, the required operating mode, shaft rotation, hydraulic connection scheme and documentation must be confirmed before acceptance. Product passport, storage records and test documentation are recommended whenever the unit is intended for aviation installation.
Details
Product Type: Axial piston hydraulic pump-motor
Designation: NP-107A
Alternative Designations: НП-107А; НП107А; NP-107A
Function: Operation as hydraulic pump or hydraulic motor in high-pressure hydraulic systems
Application / Where Used: Aircraft hydraulic systems; special equipment hydraulic circuits; industrial hydraulic drives
System / Installation Area: Special equipment hydraulic system / onboard hydraulic system
Compatible Aircraft / Equipment: An-124 Ruslan, An-225 Mriya according to supplied data
Industrial Applications: Forging and stamping presses, casting machines, machine tools, volumetric hydraulic transmissions and special hydraulic equipment
Pump Type: Axial piston hydraulic machine
Control Type: Variable displacement / regulated delivery
Working Displacement: 56 cm³
Nominal System Pressure: 21 MPa / 210 kgf/cm²
Maximum Shaft Speed: 3780 rpm
Nominal Flow Rate in Pump Mode: 190 ±10 L/min
Torque at Shaft: 140 N·m at 1500 rpm according to supplied data
Shaft Rotation Direction: Clockwise in pump mode
Auxiliary Scavenge Pump: Built-in additional pump for fluid circulation and heat removal
Auxiliary Scavenge Pump Flow Reference: Approx. 10 L/min
Working Fluid: Aviation hydraulic fluid AMG-10 or system-approved equivalent
Operating Temperature Range: −60 to +125 °C
Typical Overall Dimensions: 275 × 250 × 200 mm
Overall Dimensions with Fittings Reference: 330 × 225 × 200 mm
Dry Weight: Approx. 17–20 kg
Manufacturer Reference: Volchansk Aggregate Plant, according to supplied data
Technical Documentation: Product passport and operational documentation
Inspection / Testing: Pressure check, flow check, motor torque check, regulator function check, auxiliary scavenge pump check, leakage, drain and shaft inspection
Payment & delivery
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.
- Description
- Details
- Payment & delivery
NP-107A as an aircraft hydraulic pump-motor
The NP-107A is an aircraft axial piston hydraulic machine designed for high-pressure hydraulic systems. The unit can operate both as a pump and as a hydraulic motor, depending on the system connection and operating mode. In pump mode, it converts mechanical shaft rotation into hydraulic flow. In motor mode, it uses hydraulic energy to produce mechanical rotation. This dual-purpose design makes the NP-107A a specialized hydraulic unit for aircraft systems where reversible or power-transfer operation is required.
Pump and hydraulic motor function of NP-107A
In pump mode, the NP-107A generates working fluid flow under pressure for hydraulic system consumers. In motor mode, the unit receives pressurized fluid and converts it into torque at the output shaft. The working displacement is 56 cm³, and the nominal system pressure is 21 MPa / 210 kgf/cm². This makes the unit suitable for heavy-duty hydraulic circuits where compact size, high torque and high-pressure operation are required. Shaft rotation direction in pump mode is clockwise according to the supplied data.
NP-107A on An-124 and An-225 aircraft
The NP-107A is used in the hydraulic systems of heavy transport aircraft such as An-124 Ruslan and An-225 Mriya. In aviation use, it is associated with special equipment hydraulic circuits. One of its roles in hydraulic motor mode is to drive the cable-rope extension and retraction system used for special cargo or aircraft rope-handling equipment. Because these aircraft operate with large and heavy onboard systems, the hydraulic unit must provide stable torque and pressure under demanding load conditions.
Auxiliary scavenge pump function of NP-107A
The NP-107A includes an additional scavenge pump. This auxiliary pump provides circulation and removal of heated working fluid from the bodies of main hydraulic pumps through heat exchangers back to the hydraulic tank. Its approximate delivery is about 10 L/min according to the supplied description. This function helps protect the hydraulic system from overheating and supports stable fluid temperature. In practical maintenance, the scavenge section should be checked separately from the main pump-motor section.
Working fluid and temperature conditions for NP-107A
The NP-107A operates with aviation hydraulic fluid, typically AMG-10 in aircraft hydraulic systems where specified. The unit is designed for a wide temperature range from −60 to +125 °C. This is important for heavy aircraft that may operate in different climates and at high altitude. Fluid cleanliness, viscosity and temperature control directly affect the piston group, bearings, seals, regulator mechanism and auxiliary scavenge pump. Contaminated or overheated fluid can quickly reduce serviceability.
Industrial use of NP-107A
Outside aviation, the NP-107A is also used in industrial hydraulic systems because of its high pressure capability and robust design. It may be installed in hydraulic drives for forging presses, stamping machines, casting equipment, machine tools and volumetric hydraulic transmissions. In such applications, units are often taken from aircraft storage or surplus stock and adapted for industrial equipment. For non-aircraft use, connection dimensions, shaft rotation, working fluid, cooling and filtration must be checked carefully before installation.
Design and installation features of NP-107A
The NP-107A is a variable-displacement axial piston hydraulic machine with a regulated delivery mechanism. It has a drive shaft, hydraulic ports, drain connection and mounting surfaces for installation in the aircraft or industrial hydraulic system. The unit may include external fittings that affect overall installation dimensions. During inspection, attention should be paid to shaft condition, flange surfaces, port threads, seals, leakage, scavenge pump operation and any signs of overheating or contamination.
Supply and documentation for NP-107A
For supply or replacement, the full designation NP-107A / НП-107А should be used. It is also useful to specify whether the unit is required for aircraft use, industrial use, repair, overhaul or bench installation. Since the NP-107A can work both as a pump and as a hydraulic motor, the required operating mode, shaft rotation, hydraulic connection scheme and documentation must be confirmed before acceptance. Product passport, storage records and test documentation are recommended whenever the unit is intended for aviation installation.
Product Type: Axial piston hydraulic pump-motor
Designation: NP-107A
Alternative Designations: НП-107А; НП107А; NP-107A
Function: Operation as hydraulic pump or hydraulic motor in high-pressure hydraulic systems
Application / Where Used: Aircraft hydraulic systems; special equipment hydraulic circuits; industrial hydraulic drives
System / Installation Area: Special equipment hydraulic system / onboard hydraulic system
Compatible Aircraft / Equipment: An-124 Ruslan, An-225 Mriya according to supplied data
Industrial Applications: Forging and stamping presses, casting machines, machine tools, volumetric hydraulic transmissions and special hydraulic equipment
Pump Type: Axial piston hydraulic machine
Control Type: Variable displacement / regulated delivery
Working Displacement: 56 cm³
Nominal System Pressure: 21 MPa / 210 kgf/cm²
Maximum Shaft Speed: 3780 rpm
Nominal Flow Rate in Pump Mode: 190 ±10 L/min
Torque at Shaft: 140 N·m at 1500 rpm according to supplied data
Shaft Rotation Direction: Clockwise in pump mode
Auxiliary Scavenge Pump: Built-in additional pump for fluid circulation and heat removal
Auxiliary Scavenge Pump Flow Reference: Approx. 10 L/min
Working Fluid: Aviation hydraulic fluid AMG-10 or system-approved equivalent
Operating Temperature Range: −60 to +125 °C
Typical Overall Dimensions: 275 × 250 × 200 mm
Overall Dimensions with Fittings Reference: 330 × 225 × 200 mm
Dry Weight: Approx. 17–20 kg
Manufacturer Reference: Volchansk Aggregate Plant, according to supplied data
Technical Documentation: Product passport and operational documentation
Inspection / Testing: Pressure check, flow check, motor torque check, regulator function check, auxiliary scavenge pump check, leakage, drain and shaft inspection
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.