90R100HS1CD80R3F1F03GBA353524 Swash Plate Axial Piston Fixed Displacement Pump 90R 90L 90R100 90R075 90R055

I. Technical Parameters
Core performance parameters
– Pump type: Radial variable piston pump, heavy-duty compact structure, right-rotating steering, suitable for high-pressure closed/open hydraulic circuits, supports stepless displacement adjustment, providing high-pressure medium and small flow oil supply for single/multiple heavy-duty actuators.
– Displacement and pressure parameters: Rated displacement 100 mL/r (marked with model “100”); Rated working pressure: 31.5 MPa, maximum allowable pressure: 35 MPa (for a duration of ≤10 seconds); Rated speed: 1500 r/min, maximum speed: 2000 r/min (short time ≤5 minutes).
– Flow and efficiency parameters: Maximum flow at rated speed is 150 L/min, and the variable range is continuously adjustable from 0 to 150 L/min. Volumetric efficiency ≥94%, total efficiency ≥86%; The rotational speed is within the range of 1000-1500 r/min, and the flow regulation accuracy is ±2%.
– Operating characteristics: Continuous operating oil temperature ≤85℃, rated working condition inlet vacuum degree ≤ 0.02MPa; Noise value ≤80 dB (measured at 1 meter); The fault-free operating life is ≥ 15,000 hours (under rated conditions).
2. Structure and connection parameters
– Structural type: Radial plunger heavy-duty structure, integrating rotor, plunger, stator and constant power variable mechanism; The displacement is adjusted by an eccentric stator, and it is equipped with a built-in high-pressure relief valve and an oil replenishment valve. Flange installation, equipped with high-efficiency oil-absorbing filter screen and pressure compensation device.
– Core material: The plunger is made of stainless steel 17-4PH (quenched and tempered, hardness HRC40-44); The rotor is made of alloy cast iron QT600-3 (aged treatment, hardness HB280-320). The stator is made of bearing steel GCr15 (quenched treatment, hardness HRC62-66). The sealing part is a combination of high-pressure resistant polytetrafluoroethylene and fluororubber.
– Connection specifications: The oil suction port (S) is a DN65 flange, and the oil outlet port (P) is a DN50 flange. The drive shaft is spline connected (specification: 8×30×35). The installation flange dimensions comply with the ISO heavy-duty standard, and the center distance of the bolts is 180×120 mm. The weight of the pump body is approximately 120 kg, and its external dimensions (length × width × height) ≈550×320×360 mm.
3. Medium and Environmental requirements
– Medium requirements: Compatible with L-HM 68 anti-wear hydraulic oil (L-HM 46 can be selected in low-temperature environments), allowable medium viscosity 25-400 mm²/s, moisture content ≤0.03%, acid value ≤ 0.5mgKOH /g, strictly prohibit the use of media containing solid particles (particle size > 5 μm) or corrosive media.
– Cleanliness standard: The oil cleanliness must reach ISO 4406 15/12 grade. A 5 μm high-pressure fine filter must be placed in front of the oil suction port. The filter should be replaced immediately when the pressure difference of the filter is greater than 0.06 MPa.
– Environmental parameters: Operating environment temperature -25℃ to 90℃, relative humidity ≤95% (short-term condensation is allowed); With a protection grade of IP55, it is suitable for heavy-duty working conditions such as medium-sized construction machinery, mining equipment, and industrial hydraulic stations.Ii. Working Principle
This pump is a radial variable piston pump. Its core achieves high-pressure oil supply through the mechanism of “radial reciprocating volume change of the piston – adjustment of displacement by stator eccentricity”. The specific process is as follows:
1. Core process of oil suction and discharge
The drive shaft drives the rotor to rotate at high speed. Under the action of centrifugal force, the plunger on the rotor closely adheres to the inner surface of the stator. When the plunger rotates with the rotor to the side with the maximum eccentricity of the stator, it extends outward, increasing the volume of the plunger cavity and creating a negative pressure. The hydraulic oil is then sucked into the cavity through the oil suction port and the filter screen. When the plunger rotates to the side with the minimum eccentricity of the stator, the inner surface of the stator squeezes the plunger to retract inward, causing a sharp reduction in volume. The oil is then discharged from the oil outlet under high pressure, completing the oil suction and discharge cycle.
2. Variables and Safety Protection
– Stepless variable regulation: The stator eccentricity is changed through the hydraulic control variable mechanism (the eccentricity is adjustable from 0 to 10 mm). When the eccentricity increases, the plunger stroke increases, and the flow rate increases accordingly. A reduction in eccentricity leads to a decrease in flow rate, enabling stepless regulation from 0 to 150 L/min to meet the dynamic flow requirements of the load.
– Safety Assurance: Built-in high-pressure relief valve automatically unloads when the system pressure exceeds 33 MPa. Constant power control can automatically adjust the flow rate according to the load power to avoid overload of the power source. The oil suction chamber oil replenishment valve is combined with the check valve to prevent cavitation caused by excessive vacuum and extend the service life of the pump body.

Iii. Product Features and Advantages
– Strong adaptability to high pressure and medium and small displacement: 31.5MPa rated pressure + 0-150L /min stepless variable, precisely matching the working conditions of medium and heavy load systems (such as medium-sized excavator excavation, hydraulic press pressing), saving more than 30% energy compared to fixed displacement pumps, and suitable for equipment requirements of 50-100 tons.
– Stable flow regulation with precise precision: Maximum flow rate of 150 L/min, supports single-pump drive with dual actuators in parallel and combined flow, eliminating the need for multiple pumps to be stacked. The flow regulation accuracy is ±2%, and the pressure fluctuation under high-pressure conditions is ≤1%. It is suitable for multi-action coordination scenarios of medium-sized equipment.
– Wear-resistant, impact-resistant and long service life: The plunger and stator are precisely ground with an extremely small fit clearance, and the volumetric efficiency is ≥94%. The core components are made of reinforced materials, featuring excellent resistance to impact loads. The rated working condition fault-free life is ≥ 15,000 hours, which is 20% longer than that of ordinary plunger pumps.
– Compact, lightweight and easy to integrate: Heavy-duty compact design, weighing only 120 kg, 30% lighter than large-displacement pumps of the same pressure. The installation size is suitable for medium-sized equipment space, supports dual use of open and closed circuits, and is compatible with high-voltage systems in multiple industries.
– Intelligent control with wide adaptability: Integrates constant pressure, constant power, and remote proportional control, supports PLC or hydraulic pilot control, variable response time ≤0.3 seconds, suitable for automated production lines or intelligent medium-sized construction machinery.

Iv. Usage Functions and Purposes
1. Core usage functions
High-pressure variable oil supply: It provides adjustable flow rates ranging from 0 to 150 L/min for medium and heavy-duty systems, meeting the full requirements from rapid action of the actuator to high-pressure pressure holding (such as rapid mold closing and pressure holding of hydraulic presses).
– Multi-mode precise control: Constant pressure control ensures stable system pressure, constant power control prevents power overload, and remote proportional control enables automatic regulation, making it compatible with intelligent hydraulic systems.
– Single-pump multi-loop drive: As the core power of the system, it distributes oil through multi-way valves to drive 2-3 heavy-duty actuators to act in coordination (such as the linkage of the excavator bucket and boom), enhancing the system integration.
2. Main application fields
In the field of medium-sized construction machinery: 50-80 ton crawler excavators (main hydraulic circuit), 30-50 ton wheel loaders (lifting + bucket circuit), 100-200 ton truck cranes (telescopic boom + luffing circuit), suitable for heavy-load fieldwork.
– Industrial equipment field: 1000-2000 ton hydraulic presses (main cylinder drive), medium-sized metallurgical rolling mills (downward circuit), heavy-duty injection molding machines (mold closing + injection circuit), suitable for high-pressure molding scenarios.
– Mining and special fields: Medium-sized mining crushing stations (crushing hammer circuits), small tunnel boring machines (cutter head drive), medium-sized port cranes (hoisting + luffing circuits), suitable for continuous heavy-load working conditions.

V. Applicable Machines and Scenarios
1. Adapt to the core machine
Medium-sized construction machinery: 50-80 ton crawler excavators, 30-50 ton wheel loaders, 100-200 ton truck cranes, medium-sized hydraulic crushing stations.
– Industrial equipment: 1000-2000 ton hydraulic press, medium-sized metallurgical cold and hot rolling mill, 1000-2000 ton forging machine, 1000-2000 ton injection molding machine.
– Mining and special equipment: Medium-sized mining tunnel boring machines, small tunnel shield machines (main hydraulic systems), 10-40 ton gantry cranes for ports, medium-sized ship deck machinery.
2. Typical application scenarios
– Medium-sized excavator scenario: As the main pump of a 60-ton excavator, it provides 31.5MPa high-pressure oil. During excavation, it outputs a large flow rate of 150 L/min, and when rotating, it drops to 75 L/min, saving 35% of energy. It is suitable for mining operations.
– Hydraulic press scenario: For a 1500-ton hydraulic press, it can quickly close the mold and output a flow rate of 150 L/min. During pressing, it is reduced to 30 L/min for pressure holding (31.5MPa pressure), with a pressure holding accuracy of ± 0.3MPa, suitable for forging forming.
– Mining crushing scenario: Equipped with a medium-sized crushing station, it provides 31.5MPa high-pressure oil for each crushing hammer, and the flow rate is adjusted according to the hardness of the rock (50-120 L/min), suitable for continuous crushing operations.

Six. Similar models
1. Alternative models of the same series
– 90 r080hs1cd80r3f1f03gba353524: with small displacement model structure, the rated capacity of 80 mL/r, maximum flow 120 L/min, pressure parameters are consistent, adapter light overload system (e.g., 30 tons loaders), the cost is low 25%.
– 90 r125hs1cd80r3f1f03gba353524: in a range of displacement model, the rated capacity of 125 mL/r, 187.5 L/min, maximum flow rate pressure parameters, the same system (such as 80 tons of excavator) adaptation, and high cost of 30%.
2. Cross-series alternative models
– 90 r100ls1cd80r3f1f03gba353524: left rotation to the model, the structure parameters are consistent, sinistral power adapter (e.g., import diesel engine), the cost.
High temperature – 90 r100hs1cd80r3f1f03gba353524 – H: upgrade model, seals and heat-resistant 160 ℃, adapter metallurgy working condition of high temperature, high cost of 50%.
– 90 r100hs1cd80r3f1f03gba353524 – D: quantitative models, fixed displacement of 100 mL/r, adapter flow stabilizing system, the cost is low 18%.

Vii. Precautions for Use
1. Medium management
– Select L-HM 46/68 anti-wear hydraulic oil. Mixing oil is strictly prohibited. Before the first use of the new pump, flush the pump body and pipelines with clean oil in a circulating manner for ≥20 minutes to ensure that the cleanliness reaches ISO 4406 15/12 grade.
– Check the pressure difference of the oil suction filter weekly (replace if > 0.06 MPa), measure the moisture content of the oil monthly (≤0.03%), and measure the cleanliness quarterly. When the oil emulsifies, changes color or contains impurities, stop the machine, change the oil and clean it.
2. Installation and commissioning
When installing, the coaxiality of the drive shaft and the motor shaft should be no more than 0.04mm (elastic coupling + positioning sleeve), and the flange bolts should be tightened with a torque of 600 N·m. The diameter of the oil suction pipeline is ≥DN65, the length is ≤ 2.0m, and the number of elbows is ≤2.
Before debugging, add oil to the upper limit of the oil level and manually turn the wheel 3 to 5 times without any jamming. Jog to verify the steering. After running at a low speed (1000 r/min) for 15 minutes, the test variable adjustment was smooth and the pressure was stable.
The oil suction port is 600 mm lower than the oil level in the oil tank, and a 0-40 MPa high-pressure pressure gauge is installed at the oil outlet. For outdoor installation, add rain and dust covers, and shield the remote control lines to prevent interference.
3. Operation and Maintenance
During operation, monitor temperature (normal ≤80℃, maximum ≤90℃), pressure and noise. When the temperature rises sharply by more than 15℃, the pressure fluctuates by more than 1.2MPa, or the adjustment is abnormal, the machine should be shut down to check for wear of the plunger or jamming of the mechanism.
– Maintenance every 2000 hours: Clean the filter screen and relief valve, and check the plunger stator clearance (replace if > 0.01mm). Replace the seals and oil, and calibrate the pressure of the relief valve to 33 MPa.
– Do not run without oil (sintering for more than 3 seconds); It is strictly prohibited to exceed the rotational speed (> 2000 r/min) or to operate under long-term overpressure (> 35 MPa). Variable adjustment avoids sudden changes in flow rate and protects against shock.
4. Storage protection
For long-term storage, use high-pressure plugs to seal the oil suction port, fill the pump body with anti-rust oil, and apply high-temperature grease to the drive shaft. Store in a warehouse with a temperature ranging from 0 to 45℃ and a humidity of no more than 60%. Rotate the vehicle once a month.
Before being put into use after being idle for more than 18 months, clean the inner cavity and replace the sealing parts. Add new oil and run it at low speed for one hour. After the test shows no abnormalities, connect it to the system.