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PW high pressure internal meshing water pump combination

Our company independently designed, developed and produced PW series high-pressure center outlet meshing gear pump set and cooling system, professional commitment to customers to solve the problem of deep hole processing cooling, the series of products working pressure up to 15MPa, the maximum displacement up to 63mL/r, can meet various specifications of deep hole and threaded hole cooling and chip discharge, widely used in a variety of processing equipment high and low pressure center outlet cooling treatment system.

Detail

Our company independently designed, developed and produced PW series high-pressure center outlet meshing gear pump set and cooling system, professional commitment to customers to solve the problem of deep hole processing cooling, the series of products working pressure up to 15MPa, the maximum displacement up to 63mL/r, can meet various specifications of deep hole and threaded hole cooling and chip discharge, widely used in a variety of processing equipment high and low pressure center outlet cooling treatment system.
The core of the system is high-pressure servo internal meshing gear pump, its main features are high pressure large displacement and high efficiency and energy saving, smooth liquid transportation, no pulsation, small vibration, low noise, with good self-priming performance, can transport a variety of liquid media (such as cutting fluid, lubricating fluid, water glycol and pure water, etc.), the system adopts an integrated, intelligent design, can be controlled by the system to run independently or can be connected to the CNC machine tool PLC control operation, according to the working conditions to provide different pressures and different displacement of the combined output.
This series of products is the first in China, breaking the decades-long monopoly in the field of high-pressure pumps in foreign centers, filling the domestic gap, and the technical indicators are at the leading level in China, which can completely replace similar products imported from abroad.

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Notes

1. The pump shaft is not allowed to bear the applied axial and radial load, the connection between the shaft and the motor adopts a winding connector to avoid bending torque or axial thrust, and the coaxiality error between the pump shaft and the motor shaft is less than 0.15mm when using the winding coupling, and it is required to leave space for axial expansion and contraction.

2. Reasonable piping passage, very important for the hydraulic system, the inlet and outlet piping diameter is not less than the diameter of the inlet and outlet of the pump body to ensure the best suction and discharge of liquid speed, the liquid outlet is recommended to use high-pressure hose, if you need to use steel pipe, it must be installed accurately, in order to eliminate the tension of the pump body connection port and pipeline.

3. Before the initial start of the pump body, the same liquid should be injected into the pump body to discharge the air in the pump, otherwise the vibration and noise of the pipeline system will affect the service life of the pump.

4. In order to improve the service life of the pump body, it should be regularly checked whether there is leakage in the liquid path system and whether the connecting nails are kept tight, whether the cleanliness and viscosity of the oil in the lubrication part are within the acceptable range, and timely maintenance if problems are found.

5. A filtration system should be installed before the inlet of the pump body to prevent particles from entering the pump body and causing gear jamming and damage in the pump, so as to meet the liquid filtration accuracy entering the pump body to meet less than 30um, and the filtration system flow rate is greater than 130% of the pump flow of the use model.

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Transportation and storage

1) When transporting the motor, all lifting and handling must be used with all lifting rings Before handling the motor, please make sure that all the lifting rings are installed correctly and firmly, but never use the motor shaft and fan cover to handle the motor. In addition, care must be taken to avoid shaking and vibration when lifting the motor to prevent bearing damage.
2) If the motor is equipped with a rotor fixture, the device should always be used when transporting the motor. It must remain fixed and cannot be moved throughout the transport. If the customer has already retrofitted some parts, such as couplings or pulleys, the bearing may be damaged during transportation. In this case, the customer needs to prepare the rotor fixture himself.

Storage requirements

Stacking is not allowed when the motor is stored. For motors with a box, follow the signs on the package.

Outdoor storage

Choose a horizontal, non-shaky, dry storage location. If it is necessary to follow the storage requirements, repair the damaged packaging before storage. Place motors, equipment, and boxes on base frames, generous timbers, or pedestals to prevent moisture on the ground. Prevents the motor from falling into the ground. Cover or rain cloth for moisture protection must not come into contact with the surface of the stored item. Spacer pads are placed to ensure adequate air circulation

Indoor storage

The storage room should be protected from extreme weather, and the storage room should be kept dry, well ventilated and dust, freezing, collision and earthquake resistant.

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Installation Requirements

The pump shaft is not allowed to withstand external axial and radial loads. The connection between the shaft and the motor should use flexible connectors as much as possible to avoid bending torque or axial thrust. When using flexible couplings, the coaxiality error between the pump shaft and the motor shaft should not exceed 0.15m. If non linear couplings are used, the coaxiality error between the pump shaft and the motor shaft should not exceed 0.05mm, and it is required to leave space for axial expansion and contraction.
A reasonable piping diameter is crucial for the hydraulic system. The piping diameter at the suction port should not be less than the suction diameter of the pump to ensure the average optimal suction speed. It is recommended to use hoses at the inlet and outlet. If steel pipes are needed, they must be accurately installed to eliminate tension at the pump oil outlet and pipeline connection.

Common Installation Forms

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Precautions For Use

·Working medium
Oil based mineral oil with a viscosity range of 10-300m/s can be used, and ISOVG6 anti wear hydraulic oil is recommended. The working temperature can reach up to 100 ° C to ensure the long-term reliable operation and lifespan of the pump. The temperature should not exceed 80 ° C under continuous working conditions. The working medium should be kept clean, and the cleanliness level should not exceed level 9 (NAS1638) or 19/17/14 (ISO4406). It is recommended to install suitable oil filters in the suction and return oil circuits.
·Exhaust
Before the initial start of the pump, methods such as injecting oil into the pump or adding an exhaust device should be used to exhaust the air in the pump and oil circuit, otherwise it will cause vibration and noise in the oil circuit system, affecting the service life of the pump.
·Maintenance
To improve the service life of the pump, it is necessary to regularly check the oil system for leaks, ensure that all connecting screws are tightened, and ensure that the cleanliness and viscosity of the oil are within an acceptable range. If problems are found, maintenance should be carried out in a timely manner.

Special Precautions

The oil pump is not allowed to withstand any form of axial force!
Do not knock when installing the coupling!
Do not push or press with force!

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