Hydraulic Oil Pump ABT1 ABT2 ABT3 Series ABT2-125-2L02-B50Z ABT2-100-2R00-B50Z Hight Pressure

ABT2-125-2L02-B50Z belongs to the ABT series of servo vane pumps
Parameter
General core technical parameters
Parameter category —– specific value
Pressure rating —– The conventional maximum pressure is 25-28 mpa, and some models can reach 32-35 mpa
Displacement range —– The displacement of a single pump covers 5.8-269.0mL/r, with a common mainstream range of 6-200mL/r; The displacement of the double pump is 11.6-459.5mL/r, and for some basic models, it is 32-224mL/r. There are also three-pump specifications with a displacement range of 59.2-559.5mL/r
Speed range —– the overall range is 40-3500r/min, and the commonly used range under normal working conditions is 50-2800r/min. Some models can achieve oiling as low as 85r/min, which is suitable for the low-speed start-up requirements of servo systems
The volumetric efficiency is —– in the conventional range of 86-94%. Among them, the ABT1-40 model has a volumetric efficiency of ≥95% under the working conditions of oil temperature 50℃, rotational speed 1500r/min and pressure 16MPa
Other performance parameters —– pressure swing at holding pressure ±0.1MPa (taking the ABT1-40 suitable for a 160-gram injection molding machine as an example, the rotational speed is approximately 100r/min at holding pressure of 17.5MPa); The operating noise is 62 to 84dB
Structure and material related —– adopts pin type blades, double-lip blades and leakage type structure, supporting forward and reverse rotation; Some models feature an aluminum alloy housing combined with SKF bearings, enhancing operational stability and service life
Working principle
This hydraulic pump operates in accordance with the core principle of volume variation of vane pumps. The rotor inside the pump is driven to rotate. The blades are embedded in the radial grooves of the rotor and can slide freely. During rotation, they closely adhere to the inner wall of the stator under the action of centrifugal force. Adjacent blades form sealed working chambers with the stator, rotor and oil distribution plate. During the rotation of the rotor, the volume of the sealed chambers changes periodically. When the volume increases, a local vacuum is formed, drawing in the oil in the tank. When the volume shrinks, the oil is compressed. After the pressure rises, it is discharged through the oil outlet. Through this cycle, the continuous transportation of the oil is achieved.
Core features
Excellent starting and energy-saving performance: It adopts a pin-type blade structure, featuring low starting torque and current, which can reduce energy consumption. It also supports low-speed oiling, with the minimum speed of 85 RPM being sufficient for oiling operation, meeting the start-up requirements of various working conditions.
Stable and efficient operation: The double-acting and forward-reverse structure design ensures smoother operation and enhances the response speed of the servo system. The high-pressure and high-speed structure, combined with the double-edge blade design, can achieve a maximum pressure of 32 megapascals and support a maximum speed of 3,500 revolutions per second. It has a wide speed range and strong anti-fouling ability, which extends the service life.
Easy temperature rise control: With an external leakage design and adjustable leakage volume, it can significantly reduce the temperature rise during the operation of the oil pump, avoiding the impact on the operation of the hydraulic system due to excessively high temperatures.
Easy maintenance: Compact structure, small installation space required, and simple operation for later maintenance, which can reduce equipment maintenance costs and downtime.
Key attributes
Attribute category —– specific content
Pump type category —– servo vane pump
Displacement related —– belongs to the 125 displacement specification, and this series of displacements covers the range of 6 to 200
Pressure rating —– The maximum working pressure can reach 32 megapascals
Speed range: —– minimum 85 revolutions per minute, maximum 3500 revolutions per minute
Structural features —– pin type blades, leakage type structure, supporting forward and reverse rotation
Function and Role
Function: The core is to provide continuous and stable high-pressure oil output for the hydraulic system, precisely control the flow and pressure of the oil, meet the dynamic regulation requirements of the servo system, and at the same time can adapt to the oil transportation under different working conditions, achieving a stable cycle of oil suction and discharge.
Function: As the core power component of the hydraulic system, it provides power for downstream actuating components (such as cylinders, hydraulic motors, etc.) to drive the mechanical movements of injection molding, die-casting and other equipment to complete. In addition, it can also participate in the operation of the equipment’s lubrication system, supply lubricating oil to mechanical components, and reduce component wear.
Installation and usage precautions
Installation specification: Install by bearing or flange, and share the rigid foundation bearing with the prime mover. Connect the pump to the output shaft of the prime mover through an elastic coupling. It is strictly prohibited to directly install pulleys or gears on the pump shaft. The suction pipe should be short, straight and thick. The suction port and the return pipe port should be located 200mm below the lowest oil level in the oil tank, and the suction pipe and the return pipe should be kept at a sufficient distance. The drain pipe should be connected to the oil tank separately.
Before use: Before starting, fill the oil with a filter of the specified filtration accuracy and check that the motor rotation direction is consistent with that of the pump. For pumps without an exhaust valve, the oil outlet pipe joint needs to be loosened for exhaust. Alternatively, the motor can be run in a few points to assist in exhaust, to prevent the pump from starting without oil inside. When starting under no-load conditions, adjust the relief valve to the minimum working pressure and run it no-load for at least 5 minutes before loading.
Operation and maintenance: The working oil temperature should be controlled between 15 and 65℃. Avoid starting when the oil temperature is too high or too low. During operation, pay attention to the changes in oil level height and equipment noise. When conducting maintenance, ensure that the equipment is in a pressure-free state. Avoid long-term operation at the highest pressure and highest speed to prevent shortening the service life of the pump.
Compatible model
This type of hydraulic pump is suitable for medium and low pressure hydraulic system related models, commonly found in injection molding machines, die-casting machines, rubber machinery, etc. It can also be used in large machine tools, Marine machinery related models that require servo hydraulic drive, as well as some supporting machinery in the metallurgy and oil refining fields.
Recommendation of complete models in the same series
This ABT series includes various specifications such as single and double units, catering to different displacement and working conditions. The relevant complete model recommendations are as follows:
Single unit models: ABT2-100-2R02-B50Z, ABT2-125-2R02-B50Z, ABT2-125-1L01-B50E, ABT2-100-2R00-B50Z;
Dual-unit model: ABT22T-125-125-1R03-D1.
The ABT series of hydraulic pumps cover various types such as single and double units, suitable for different displacements and working conditions. In addition to the models mentioned earlier, based on the common circulating models of this series, we recommend the following products of different specifications for you, as follows:
Single-circuit basic model: This type of model is mostly compatible with conventional single-circuit hydraulic systems and meets the power requirements of small and medium-sized equipment. Including ABT1-64-1R00-B5, ABT2-125-2R01-B50E, ABT2-125-2L00-B12E, ABT2-160-2R02-B50Z, and ABT3-160-2R00 – B50Z, etc. Among them, the ABT3-160-2R00-B50Z is a single-circuit model with a relatively large displacement, suitable for single-circuit scenarios with high requirements for oil output volume.
Single-belt T suffix model: This type of model may be structurally adapted to specific installation or transmission requirements, and is suitable for more targeted servo hydraulic scenarios. For example, ABT1T-50-1R02, ABT1T-64, ABT2T-125-2R02-C1. Like ABT1T-50-1R02, it is often used as a servo oil pump and is suitable for small servo hydraulic systems.
Dual-circuit type: Mainly used in complex hydraulic systems that require independent oil supply in two circuits, it can provide power for two actuating elements simultaneously and is commonly found in large-scale composite equipment. Including ABT22T-160-125-1R00-D1 and ABT22T-125-125-1R03-C1. This type of two pump bodies can provide oil of corresponding displacement, making it suitable for equipment such as large injection molding machines and die-casting machines that require multi-action synchronous operation.
Special working condition model: Suitable for high pressure, special installation angles and other special working conditions, such as ABT21T-160-5R02-Z21. This model is suitable for complex servo hydraulic scenarios with high requirements for pressure and flow regulation accuracy, and is commonly found in the hydraulic systems of large precision machinery.