Product Description:
Advantages and features of Rexroth gear pumps
Simple and compact structure: The basic structure of Rexroth gear pumps is simple, consisting of two gears of the same size meshing and rotating in a tightly fitting housing. This structure makes the pump small in size, light in weight, and easy to install and maintain.
High efficiency and low noise: Through precision production processes and pressure-sensitive gap seals, Rexroth gear pumps can achieve higher efficiency and avoid unnecessary heat generation. At the same time, it optimizes pressure pulsation and reduces noise emissions and vibration input sources of the system.
Strong self-priming ability: Rexroth gear pumps have strong self-priming ability and can work normally at lower suction pressures. This allows it to operate stably in some occasions with high requirements for suction conditions.
Resistant to oil contamination: The pump is not sensitive to oil contamination and can work normally under a certain degree of oil contamination, which has great advantages in some industrial environments and reduces failures caused by oil contamination.
Wide speed range: The speed range of Rexroth gear pumps is large and can adapt to different working requirements. This allows it to perform well in a variety of application scenarios.
Long service life: The service life of Rexroth gear pumps has been extended by the reinforced design of the shaft and the optimization of the pump cover material. At the same time, its large-scale production also ensures the stability of product quality.
Multiple configurations available: Rexroth gear pumps can provide a variety of configuration variants to meet the needs of different users. For example, it can realize the combination of multiple pumps to meet greater flow requirements.
Precautions for the use of Rexroth gear pumps
Selection and use of hydraulic oil:
It is strictly forbidden to add diesel to the gear oil for dilution, and do not bake the rear axle and transmission due to the impact of winter starting, so as to avoid serious deterioration of the gear oil. If this happens, low-viscosity multi-grade gear oil should be used instead.
Do not confuse the classification number of engine oil and oil pump. The viscosity level of gear oil and engine oil is not related, and the same model cannot be used interchangeably.
Reasonable use of oil pumps is conducive to gear maintenance. Gear oil has a long service life. If single-grade oil is used, a different viscosity number should be used during seasonal maintenance. Old oil should be properly stored to prevent moisture, mechanical impurities and waste oil pollution.
Change oil in time. The new oil should be replaced according to the specified oil change index. If there is no oil quality analysis method, the oil can be changed according to the specified period. The oil change period recommended by the automobile manufacturer is 30,000-48,000 km. When changing the oil, the old oil should be released while it is hot, and the gears and gearbox should be cleaned before adding new oil. When refueling, moisture and impurities should be prevented from mixing.
The amount of oil should be appropriate, not too much or too little.
Installation and connection:
The oil suction height of the pump shall not be greater than 0.5m.
The transmission device should ensure that the force of the driving shaft of the pump is within the allowable range.
The rotation direction of the pump cannot be wrong, that is, the position of the oil inlet and outlet of the pump cannot be wrong. When disassembling and assembling the pump, it must be strictly carried out according to the factory instruction manual.
The installation between the pump drive shaft and the output shaft of the prime mover adopts an elastic coupling, and its coaxiality deviation should be less than 0.1mm, and the coaxiality deviation of the sleeve coupling should be less than 0.05mm.
Tighten the screws of the pump inlet and outlet pipe joints, and the sealing device should be reliable to avoid suction and oil leakage, which will affect the working performance of the pump.
The inlet and outlet diameters of the pump should not be smaller than the inlet and outlet diameters of the pump. The oil inlet pipe should use a slightly larger diameter, the shorter the better, the elbow should use a relatively large bending radius, and the valve on the pipeline should use a gate valve to reduce resistance.
Before installation, check whether the pump body and the motor are damaged during transportation, such as whether the motor is damp, and whether the dust cover of the pump inlet and outlet is damaged to allow dirt to enter the pump cavity.
The installation should be selected in a dry and bright place so that the management personnel can observe the gear pump during operation. If it is necessary to install it near the wall, an open space must be reserved for easy disassembly and maintenance. Do not install the pump in a humid, sunny, windy and rainy place. If the installation site is likely to be flooded, the oil pump must be located above the highest water level.
Operation and maintenance:
Before starting, it is necessary to check whether the overflow valve (safety valve) in the system is at the set allowable pressure.
A mesh filter is often installed at the pump's oil suction port, and its filter accuracy should be less than 40μm. The filter installed on the system's oil return line should have an accuracy of less than or equal to 20μm.
If the pump is not used for a long time, the pump should be separated from the prime mover.
| Mounting Type | Base, Flange, Foot |
| Pressure | Up to 3,000 PSI |
| Feature | High pressure,Wide speed range |
| Motor | DC motor |
| Viscosity | Up to 1,000,000 cSt |
| Voltage | 220V or 380V |
| Seal Type | Mechanical Seal, Packing Seal |
| Lead Time | in stock |
| Fuel | DC power, Battery |
| Displacement Type | constant |
FAQ
Q1: Wonder if you accept small orders?
A1: Do not worry. Feel free to contact us .in order to get more orders and give our clients more convener ,we accept small order.
Q2: Can you send products to my country?
A2: Sure, we can. If you do not have your own ship forwarder, we can help you.
Q3: What's your payment terms ?
A3: By T/T,LC AT SIGHT,100% full payment.
Q4: How long is your production lead time?
A4:It depends on product and order qty. Normally, it takes us 15 days for an order with MOQ qty.
Q5: When can I get the quotation ?
A5: We usually quote you within 24 hours after we get your inquiry. If you are very urgent to get the quotation.Please call us or tell us in your mail, so that we could regard your inquiry priority.
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