90M 90M055 90M075 90M100 Hydraulic Displacement Piston Pump 90M075NC0N7N0S1W00NNN0000E6 90M055NCON8NOC6N00N000000

90 m075nc0n7n0s1w00nnn0000e6 is one of the 90 series axial variable piston pump, commonly used in closed hydraulic system, fit a variety of mobile machinery scenario, the following from you focus on the various dimensions of detailed introduction:
Model Analysis: This model is the detailed specification code for the 90 series plunger pump. The meanings of each key character are decomposed in combination with the series naming rules as follows:
Meaning of character segments
The 90 series logo represents the 90 series axial piston pumps. The core of this series is the variable displacement design, which is suitable for closed hydraulic systems
The M structure type code, corresponding to the parallel-arranged axial plunger slipper structure, is the signature structural design of this series
The 075 displacement parameter indicates that the pump’s displacement is 75cm³/r, meaning that the pump theoretically conveys 75 cubic centimeters of hydraulic oil per revolution
Intermediate characters such as N/C/0 are mostly encoded for compatibility and control methods. Among them, “N” often represents the conventional compatibility specification, “C” may be associated with the basic control type, and subsequent consecutive combinations of numbers and letters are used to distinguish detailed parameters such as sealing standards and installation interface specifications, to meet the assembly requirements of different equipment
The S1/W00 auxiliary function identification is presumed to be related to integrated accessories. For instance, “S1” might correspond to a specific sensor adapter interface, and “W00” could represent a standard oil replenishment circuit configuration
The E6 tail code is generally used to distinguish production batches, regional adaptation standards or after-sales accessory codes, ensuring product traceability and adaptation accuracy
Working principle: This pump follows the core working logic of the 90 series axial variable piston pump. It relies on the coordinated movement of the swash plate and the piston to achieve the suction, discharge and flow regulation of the oil. The specific process is as follows:
Power transmission: The engine drives the pump’s transmission shaft to rotate. The transmission shaft is coaxially connected to the cylinder block, thereby driving the cylinder block and the evenly distributed plungers inside to rotate synchronously. The sliding shoes at the plunger heads are closely attached to the surface of the tiltable swash plate.
Suction and pressure oil circulation: When the cylinder rotates, the inclination Angle of the swash plate forces the plunger to perform reciprocating linear motion in the cylinder hole. When the plunger rotates to one side of the swash plate along with the cylinder body and extends outward, the volume of the plunger chamber increases, creating a negative pressure, which sucks in hydraulic oil through the suction port of the oil distribution plate. When the plunger rotates to the other side of the swash plate and is squeezed inward by it, the chamber volume decreases, and the oil is pressurized and then output to the hydraulic system through the pressure port of the oil distribution plate.
Variable and reversing adjustment: By changing the inclination Angle of the swash plate, the reciprocating stroke of the plunger can be adjusted. The greater the inclination Angle and the longer the stroke, the greater the output flow of the pump; conversely, the flow rate will be smaller. If the tilt direction of the swash plate is adjusted in reverse, the output direction of the oil will change accordingly, thereby achieving the forward and reverse rotation switching of the output shaft of the hydraulic motor.
System oil replenishment guarantee: The oil replenishment pump integrated with the pump will continuously replenish hydraulic oil for the closed system, and at the same time undertake the tasks of oil cooling and pressure oil supply for the control oil circuit, preventing system failures due to oil loss or overheating.
High pressure and high efficiency, with lower energy consumption
Outstanding pressure resistance performance: This series of pumps has strong high-pressure adaptability. Some models can achieve a continuous working pressure of up to 420 bar, and some special specification models can even reach a maximum pressure of 480 bar, easily meeting the operational requirements of high-pressure hydraulic systems in construction, mining and other fields.
High energy conversion efficiency: By adopting an axial plunger slipper structure and an optimized swash plate control technology, it features high mechanical and volumetric efficiency, with an energy conversion efficiency exceeding 92%. This can reduce energy loss and fuel consumption in the hydraulic system, while also lowering oil heating and reducing the load on the cooling system.
Diverse control methods and precise adjustment
It supports multiple control methods such as manual, electro-hydraulic control, pressure compensation control, and load sensing control, and can be flexibly integrated into different hydraulic control systems. Moreover, the flow rate can be adjusted steplessly through the swash plate. The response time of some models is less than 50 milliseconds, which can precisely match the speed and torque requirements of the equipment under different working conditions, such as the low-speed and heavy-load switching during agricultural machinery harvesting and the high-speed and light-load switching during transfer.
The structural design is excellent and has wide adaptability
Compact, lightweight and easy to assemble: It adopts a modular compact design, with a small volume and light weight. Compared with similar products, its weight can be reduced by 50%, and it can be adapted to equipment with limited installation space such as loaders and small excavators. It is compatible with standard installation interfaces such as SAE and ISO flange and shaft configurations, and can be seamlessly integrated into the hydraulic systems of most equipment. It also supports single pump and series pump designs. The rear end cover can be optionally equipped with auxiliary installation flanges to meet the assembly requirements of series pumps.
The integrated make-up oil pump is more practical: The integrated make-up oil pump not only ensures positive pressure in the system and avoids cavitation problems, but also provides the power needed for cooling and filtration in the system, simplifies the external pipeline layout, and enhances the overall stability of the hydraulic system.
It is highly durable and easy to maintain
Outstanding anti-manufacturing capacity: It adopts high-strength alloy steel shell, hardened steel plunger and high-strength bearings and other wear-resistant components, with strong anti-pollution and anti-impact load capabilities. It can adapt to harsh working conditions with much dust and strong vibration in mines, forestry and other industries, with an average mean time between failures exceeding 10,000 hours.
Simple maintenance and repair: It adopts a modular design, allowing internal components to be quickly disassembled for inspection and repair without the need for complex disassembly of the overall structure. This can significantly shorten the time for fault detection and maintenance, reduce equipment downtime losses, and the low-noise and low-vibration design can also reduce equipment wear and tear during operation.
There are a wide range of displacement options and strong scene adaptability
This series features multiple models ranging from S90-042, S90-055 to S90-130, with a wide range of displacement coverage. It can meet the hydraulic system requirements of different power levels, from small agricultural machinery to large construction equipment. Whether it is the small hydraulic action of the harvester or the high-power walking drive of the paver and roller, corresponding suitable models can be found.
As a core component of closed systems, this pump is widely used in various mobile machinery and heavy equipment fields: in the agricultural field, it is suitable for driving the harvesting and conveying actions of equipment such as harvesters, combine harvesters, and lawn mowers. Control of the walking and working mechanisms used in the construction field for pavers, rollers, trenchers, etc. In addition, it can also be used in the hydraulic systems of material handling equipment, forestry machinery, lawn maintenance equipment and small mining machinery, providing power support for the core actions of various types of equipment.
Function and role
Power conversion: It converts the mechanical energy output by the engine into the pressure energy of the hydraulic oil, providing high-pressure oil for the hydraulic motor, hydraulic cylinder and other actuating components, driving the equipment to complete actions such as walking and working.
Flow regulation: Through variable design, the output flow is flexibly adjusted according to the changes in equipment load. For instance, a large flow is output when the equipment is moving rapidly under light load, and a small flow is output under high pressure during heavy-load operation, balancing efficiency and energy conservation.
System protection: The integrated oil replenishment pump not only replenishes the oil but also cools the oil temperature, preventing the system from being damaged due to overheating. At the same time, a stable pressure output can prevent excessive pressure fluctuations in the pipeline and protect valves, pipelines and other accessory components.
Directional control: By adjusting the Angle of the swash plate, the oil is output in the reverse direction, thereby controlling the movement direction of the actuator, meeting the bidirectional action requirements of the equipment such as forward and reverse rotation, forward and backward movement.
The 90 series includes multiple models with different displacements and compatible specifications, covering various working conditions. Some core models are as follows:
With similar displacement models: 90 m075nc0n8n0s1w00nnn0000e6, 90 m075nc0n8n0c6w00nnn000e6, consistent with the target core model parameters, only the middle fitment coding have differences, to fit different brand or type of host equipment.
Different displacement series models The 90M055 series (displacement 55cm³/r, suitable for small hydraulic equipment), 90M100 series (displacement 100cm³/r), 90M130 series (displacement 130cm³/r), and the 90M250 series (displacement 250cm³/r, suitable for heavy-duty scenarios such as mines) for large equipment.
Associated compatible model: 90M055NC0N8N0C6W00NNN000. As a medium and small-displacement model in the series, it is often used in light construction machinery and agricultural machinery. It belongs to the same 90 series as the target model and has exactly the same structure and control logic.