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Hydraulic piston pump troubleshooting

Introduction of hydraulic piston pumps

Hydraulic piston pumps are widely used in various industries, including agriculture, construction, mining, and manufacturing. They are crucial components of hydraulic systems as they provide the necessary pressure to power hydraulic machinery. However, like all mechanical equipment, hydraulic piston pumps can experience issues that require troubleshooting. By understanding the symptoms, causes, and solutions to hydraulic piston pump problems, you can keep your hydraulic system running efficiently.

What is a hydraulic piston pump?

A hydraulic piston pump is a type of positive displacement pump that works by using reciprocating pistons to displace fluid. The pump has a series of cylinders with pistons that move back and forth to create a vacuum that draws fluid into the cylinder. As the piston moves forward, it compresses the fluid, which then flows out of the pump at high pressure.

Symptoms of a failing hydraulic piston pump

The following are some of the most common symptoms of a failing hydraulic piston pump:

*Low flow rate

*Noisy pump

*Overheating pump

*Leaking pump

*Pump cavitation

Causes of hydraulic piston pump failure

Hydraulic piston pumps can fail for several reasons, including:

*Contamination: Dirt, debris, and other contaminants can clog the pump's filters and cause damage to the pump.

*Wear and tear: Over time, the pump's components can wear out, leading to leaks and reduced performance.

*Overloading: Running the pump beyond its recommended capacity can cause damage to the pump's components.

Incorrect installation: Poor installation practices can cause misalignment of the pump, leading to premature wear and tear.

Troubleshooting hydraulic piston pump issues

Low flow rate

If you notice a decrease in the flow rate of your hydraulic system, there are a few things that you can check:

*Check the pump's inlet line for clogs or restrictions.

*Inspect the pump's filters and clean or replace them if necessary.

*Check for air leaks in the system.

Noisy pump

If your hydraulic piston pump is making unusual noises, it could be due to:

*Air in the system: Bleed the air out of the system to eliminate the noise.

*Low oil level: Check the oil level and add oil as needed.

*Worn pump components: Inspect the pump's components and replace any damaged parts.

Overheating pump

An overheating hydraulic piston pump can be caused by:

Low oil level: Check the oil level and add oil as needed.

Dirty or clogged filters: Clean or replace the filters.

Overloading: Reduce the load on the pump or upgrade to a larger pump.

Leaking pump

If you notice a leak in your hydraulic system, you should:

*Check the pump's seals for damage and replace them if necessary.

*Inspect the pump's fittings and connections

Hydraulic piston pump supplier - Lexmua Hydraulic

Guangdong Lexmua Hydraulic Technology Co., Ltd. mainly supplies high-quality hydraulic products such as Gear Pumps, Piston Pumps, and Vane Pumps for different purposes and different displacements. Products are widely used in forklifts, dump trucks, injection molding machinery, rubber machinery, die-casting machinery, construction machinery, and other industrial equipment, as well as hydraulic systems such as automobiles, ships, and construction machinery. Axial Piston Pump PV plus Variable Displacement is a hot selling product in our Parker Piston Pumps series, which has the following features:

•Low noise level

•Fast response

•Service-friendly

•High self-priming speed

•Compact design

•Thru drive for 100% nominal torque

If you are interested in hydraulic piston pump or other hydraulic products, please contact us to know more information.

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The Development Trend of Hydraulic Motors

Hydraulic motors are a type of motor that convert hydraulic pressure into mechanical power. They are widely used in various industries, including construction, agriculture, and manufacturing. Over the years, hydraulic motors have undergone several changes, and this article will explore the development trends of hydraulic motors.

Introduction of Hydraulic Motors

Hydraulic motors are essential components of hydraulic systems. They are used to power a wide range of equipment, including excavators, cranes, and conveyor belts. Hydraulic motors are preferred over electric motors in some applications because they can deliver higher torque and are better suited for heavy-duty operations.

Types of Hydraulic Motors

There are three main types of hydraulic motors: gear motors, vane motors, and piston motors. Gear motors are the simplest type of hydraulic motor and are used in low-speed, high-torque applications. Vane motors are more efficient than gear motors and are commonly used in industrial applications. Piston motors are the most complex type of hydraulic motor and are used in high-speed, high-torque applications.

The Development Trend of Hydraulic Motors

Increasing Efficiency

One of the main development trends of hydraulic motors is increasing efficiency. As industries continue to demand higher performance and lower energy consumption, hydraulic motors must keep up with these demands. Manufacturers are developing hydraulic motors that can deliver higher power output with lower energy consumption. This is achieved by improving the design of hydraulic motors, reducing internal friction, and improving the efficiency of the hydraulic fluid.

Adoption of Smart Features

Another development trend of hydraulic motors is the adoption of smart features. With the increasing demand for automation and control, hydraulic motors are being integrated with sensors and control systems. This allows for more precise control over the motor's speed and torque, reducing energy consumption and improving performance.

Integration with Electronics

Hydraulic motors are also being integrated with electronics. This allows for better communication between the motor and other components in the hydraulic system. Manufacturers are developing hydraulic motors that can communicate with other components, such as pumps and valves, to optimize the performance of the system.

Environment-Friendly Technologies

Hydraulic motors are being developed with environment-friendly technologies. As the world becomes more conscious of the impact of industrial activities on the environment, manufacturers are developing hydraulic motors that use biodegradable hydraulic fluids. This reduces the risk of hydraulic fluid leaks and reduces the environmental impact of hydraulic systems.

Challenges in the Development of Hydraulic Motors

Despite the development trends of hydraulic motors, there are some challenges that manufacturers face. One of the main challenges is the high cost of development. Developing hydraulic motors with smart features and electronics requires significant investment in research and development. Additionally, the limited adoption of hydraulic systems in some industries, such as the automotive industry, makes it difficult for manufacturers to justify the investment in the development of hydraulic motors.

Another challenge facing hydraulic motors is competition from electric motors. Electric motors are becoming more efficient and cost-effective, making them a viable alternative to hydraulic motors in some applications. However, hydraulic motors still offer several advantages over electric motors, such as higher torque and better performance in extreme environments.

Hydraulic Motors supplier - Lexmua Hydraulic

Guangdong Lexmua Hydraulic Technology Co., Ltd. mainly supplies high-quality hydraulic products such as Gear Pumps, Piston Pumps, Vane Pumps and Hydraulic Motors. Products are widely used in forklifts, dump trucks, injection molding machinery, rubber machinery, die-casting machinery, construction machinery, and other industrial equipment, as well as hydraulic systems such as automobiles, ships, and construction machinery. Orbit Motor is our hot selling product series, Hydraulic Motor OMP is one of the hot products, the features are as follows:

Constant operating torque over a wide speed range

Long life under extreme operating conditions

High return pressure without the use of drain line (High pressure shaft seal)

High efficiency

High starting torque

Robust and compact design

High radial and axial bearing capacity

For applications in both open and closed loop hydraulic systems

Suitable for a wide variety of hydraulics fluids

If you are interested in hydraulic motors or other hydraulic motors, please contact us to know more information.

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Caproni gear pump

Lexmua is a professional gear hydraulic pumps manufacturer, we can provide you with different brands of gear hydraulic pumps, such as Salami gear pump, Casappa gear pump and Sauer gear pump.

In addition to Gear Pumps, we also have other high-quality hydraulic products such as Piston Pumps. If you do not find hydraulic products that meet your needs on the website, you can click the Contact us button to express your needs by phone, email or fill in the form. We look forward to your consultation.

Caproni gear pump characteristics

Displacement range 0.16-199cc/r, single to multiple gear pumps

Axial backlash automatic compensation function

Adopt high-end imported CNC processing equipment

Cleanliness up to EU standards

Reliable quality and stable performance

Features of Caproni gear pump Group 00/10/20/30

LEXMUA Caproni gear pump Group 30 : High performance aluminum body single pump with cast iron flange and cover. This range of pumps can be used in heavy duty systems. Single rotation and reversible.

LEXMUA Caproni gear pump Group 20: The pump body, flanges and end covers are die-cast from a special pressure-resistant aluminum alloy. Available with threaded or flanged ports, tapered or G-shaft.

LEXMUA Caproni gear pump Group 10: The pump body, flanges and end covers are die-cast from a special pressure-resistant aluminum alloy. Available with threaded or flanged ports, tapered or G-shaft.

LEXMUA Caproni gear pump Group 00: plain bearings for heavy-duty applications, designed for long service life through reinforced shaft and gray cast iron cover.

Caproni gear pumps with valves: technical characteristics correspond to 10, 20 and 30 pump sets.

Caproni gear pump in series: technical characteristics determined by compound gear pumps.

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Atos gear pump

Lexmua is a professional gear hydraulic pumps manufacturer, we can provide you with different brands of gear hydraulic pumps, such as Caproni gear pump, Salami gear pump and Casappa gear pump.

We also have many more products. If you don't find the product you need on the website, you can click the Contact us button to express your needs by phone, email or fill in the form. We look forward to your consultation.

Let LEXMUA introduce PFG series Atos gear pump:

Atos Gear Pump has PFG-1, PGP-2, PFG-3 three series

The PFG-1 and PGP-2 series of Atos Gear Pumps offer flexibility, a variety of displacements, features and shaft/port options.

The PFG-1 PGP-2 pump offers flexibility, a variety of displacements, features and shaft/port options.

The PFG-1 Series The PGP-2 Series have earned an excellent reputation for rugged, reliable performance under continuous pressure and speed.

The PFG-3 Series Atos Gear Pumps are peak performance fixed displacement gear pumps constructed of a high strength extruded aluminum body with aluminum covers and flanges, all pumps are pressure balanced for exceptional efficiency.

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Galtech Gear Pump

Lexmua is a professional hydraulic gear pump manufacturer, we can provide you with different brands of hydraulic gear pumps, such as Galtech gear pump, Atos gear pump, Caproni gear pump, and Salami gear pump. We have many more products.

If you don't find the product you need on the website, you can click the Contact us button to express your needs by phone, email or fill in the form. We look forward to your consultation.

Let's talk about Galtech Gear Pump:

Galtech hydraulic pump replaces the traditional heavy and dull mechanical transmission mechanism, and constantly improves the quality and technology, strives for "excellence" and improves customer satisfaction. Galtech hydraulic pump obtained ISO 9001 certification in 1995 and holds IQNet certification from the International Certification Alliance. Galtech hydraulic pumps are widely used in automobiles, tractors, construction machinery, agricultural machinery and other mechanical hydraulic systems.

Galtech hydraulic pump features:

1. Compact structure, small size and light weight

It is composed of front cover, intermediate body and back cover made of aluminum alloy, gears made of alloy steel and pressure plate made of aluminum alloy. Two DU bearings are pressed in each of the front and back covers. DU material is ideal for gear pumps. Bearing materials can greatly increase the life of the gear pump.

2. work reliably

The pressure plate is the main component of radial and axial pressure compensation, which can reduce the bearing load and automatically adjust the axial clearance of the gear pump, thus effectively improving the performance index and working reliability of the gear pump;

3. High speed and high pressure

The rotation speed of Galtech hydraulic pump is as high as 3000~4000 rpm, and the theoretical torque is 17N.m (Newton.meter)~64N.m, which can reach 20-25MPa.

4. The connection method is suitable for imported machinery and construction machinery

Comply with SAE and national standard GB installation flange, shaft extension, oil inlet and oil outlet connection line.

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Marzocchi Gear Pump

Lexmua is a professional hydraulic gear pump manufacturer, we can provide you with different brands of hydraulic gear pumps, such as Galtech gear pump, Atos gear pump, and Caproni gear pump. We have many more products.

If you don't find the product you need on the website, you can click the Contact us button to express your needs by phone, email or fill in the form. We look forward to your consultation.

Let's talk about the Marzocchi Gear Pump:

Marzocchi gear pumps are characterized by good hydraulic function, mechanical and volumetric efficiency, low noise level and not only that, but also compact dimensions with low weight/power ratio.

Lexmua offers marzocchi gear pumps of the ALP and GHP series, suitable for a variety of different applications in industrial and mobile areas.

ALP series marzocchi gear pump includes: ALP1, ALP2, ALP3, ALP4

GHP series marzocchi gear pump includes: GHP1, GHP2, GHP3

Besides, we also have 0.25-0.5 Hydraulic Micro pumps

The product range of Marzocchi gear pumps is: suitable for a variety of different applications in industrial and mobile fields. Usually these gear pumps usually consist of two aluminum bushings, the body, special bushing compensation band, insulated by special pre-formed seals anti-extrusion rings, allowing complete freedom of axial and radial movement of the bushing, which is The working pressure of the pump is adjusted proportionally. In this way - the same - series, can provide different flanges, forms and other shaft extension oil port.

Marzocchi gear pumps are characterized by: good hydraulic function, mechanical and volumetric efficiency, low noise level and not only that, but also compact dimensions with low weight/power ratio.

The product range of Marzocchi gear pumps is GHP series: GHP1, GHP2, GHP3 suitable for various applications in industrial and mobile fields. Usually these gear pumps usually consist of two aluminum bushings, the body, special bushing compensation band, insulated by special pre-formed seals anti-extrusion rings, allowing complete freedom of axial and radial movement of the bushing, which is The working pressure of the pump is adjusted proportionally. In this way, the same series can provide different flanges, forms and other shaft extension oil ports.

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Parker Gear Pump

Parker gear pumps provided by Lexmua include: PGP505 / PGP511 / PGP517, and PGP315 / PGP330 / PGP365 / PGP620 / PGP640 series gear pumps. We also have other brands of gear pumps, such as Marzocchi, Galtech, Atos, etc. More brands of hydraulic gear pumps are not shown, if you want to consult more products, please contact us.

Let's take a closer look at the Parker gear pump:

PGP series Parker gear pump features

1. High pressure

The continuous working pressure of PGP series Parker gear pump is as high as 275bar. The high-strength material and large shaft diameter reduce the bearing load and are suitable for working under high-pressure conditions.

2. Low noise

Among the Parker gear pumps, PGP 503 is a 9-tooth gear, PGP 505 and PGP 517 are 13-tooth gears, and PGP 511 is a 12-tooth gear. The flow distribution structure is optimized to reduce pressure pulsation, and the operation is extremely smooth and quiet.

3. High efficiency

Under all working conditions, the pressure-balanced floating sleeve structure can ensure the highest efficiency of the Parker gear pump.

4. Application flexibility

Parker gear pumps have international installation and connection dimensions, the ability to integrate and install various valves, and the configuration of multiple pumps with a common inlet, providing unparalleled flexibility in system design and application.

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Hydromax Gear Pump

Lexmua is a professional external hydraulic gear pump manufacturer, we can provide you with different brands of hydraulic gear pumps, such as Parker gear pump, Marzocchi gear pump and Galtech gear pump.

Hydromax HGP gear pumps provided by Lexmua include: HGP1A, HGP2A and HGP3A series gear pumps.

Due to too many product models, the website can only list some product information. If you can't find the model you need, you can click the Contact us button to express your needs by phone, email or fill in the form. We look forward to your consultation.

Next, let's talk about Hydromax HGP hydraulic pump:

Hydromax Gear Pump/HGP1A 2A 3A Features:

1. High efficiency: the axial and radial clearance automatic compensation mechanism enables the oil pump to maintain high volumetric efficiency and high mechanical efficiency for a long time

2. Long service life: excellent performance and high abrasion resistance, the bearing will not be burned when it is operated under high pressure and high speed

3. This type of pump is a high-pressure and high-performance pump specially developed for low noise. It is a stable power source for the hydraulic system and the product performance is stable.

4. The shell is made of aluminum alloy, hard chrome plated, finely ground, with good anti-rust and wear-resistant properties

5. DU composite material bearings and high-performance sealing elements, small starting torque, good sealing performance, and can work under harsh conditions

6. Suitable for a wide range of equipment, such as civil construction machinery, industrial vehicles, handling machinery, agricultural and fishery machinery, etc.

7. Product execution standard: JIS 4-bolt standard

Benefits of using Hydromax HGP gear pumps:

1. The energy consumption is reduced, and the control of numerical control proportional backup pressure can be realized

2. Alloy steel hard surface gear transmission, stable transmission;

3. Using SP series gears, small fluctuation, high pressure and low noise

4. Simple structure, light weight, easy to operate and suitable for different working environments.

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Shimudzu Gear Pump

Lexmua is a professional external hydraulic gear pump manufacturer, we can provide you with different brands of hydraulic gear pumps, such as Hydromax gear pump, Parker gear pump and Marzocchi gear pump.

Shimudzu SGP gear pumps provided by Lexmua include: SGP1 and SGP2 series gear pumps.

Due to too many product models, the website can only list some product information. If you can't find the model you need, you can click the Contact us button to express your needs by phone, email or fill in the form. We look forward to your consultation.

Next, let's talk about Shimudzu SGP hydraulic pump:

Shimudzu Gear Pump/SGP1 SGP2 Product Features

1. Excellent durability, under the condition of 24.5MPa, it has passed one million impact fatigue tests.

2. High efficiency: Through precise and meticulous structural design, this series of gear pumps maintains high volumetric efficiency and high mechanical efficiency.

3. Long service life: high-performance high-wear-resistant bearings and high-pressure, high-speed applications will not burn out.

4. Light weight, compact and delicate structure.

5. The body is made of aluminum alloy, with high precision design and low noise.

6. Wide range of application: widely used in civil construction machinery, industrial vehicles, handling machinery, agriculture, forestry and fishery machinery and other devices.

7. Both economy and reliability can meet the requirements of customers.

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Rexroth Gear Pump

The Rexroth gear pumps that Lexmua can provide include: AZPB, AZPF, AZPN and AZPG standard Rexroth gear pumps, and AZPT and AZPU series silent gear pumps; where the displacement is graded according to different tooth widths. Further configuration variants are also possible through different arrangements of flanges, shafts and valves, as well as various combinations of multistage pumps.

Our duplex Rexroth gear pump includes AZPFF, AZPNF, AZPFB, AZPGF hydraulic pumps;

Our triple Rexroth gear pump includes AZPFFF, AZGGF hydraulic pump

In addition to Rexroth gear pumps, we also have Shimudzu, Hydromax, Parker, Marzocchi and other brands of gear pumps for sale. If you need to buy gear pumps wholesale, you can contact us by filling out the form below to express your needs.

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Rexroth Rexroth internal gear pump series product maintenance

Let's take a look at the precautions for the Rexroth Rexroth internal gear pump series product maintenance, as well as Rexroth internal gear suppliers.

Rexroth Rexroth internal gear pump series product maintenance

For the safe operation and long service life of the internal gear pump, a maintenance plan for the hydraulic station, machine or system is necessary. Pay close attention when the following points go wrong

1. Desired oil cleanliness level

2. Operating temperature range

3. The grade of the working medium

4. The temperature difference between the pump and hydraulic oil in the oil reservoir and the formation of foam in the oil reservoir

Changes in these parameters indicate component wear. The cause must be determined immediately and the fault corrected.

Rexroth gear pump supplier - LEXMUA

LEXMUA Gear pumps have three basic parameters: displacement, speed and pressure.

The choice of gear pump should meet the basic needs of the actuator. For mixing, the product of gear pump displacement and speed should be sufficient to meet the hydraulic flow required to reach maximum speed. The working pressure of the gear pump is usually below 20MPa. The maximum working pressure of lexmua gear pump should be within 30MPa.

The LEXMUA Gear pump has a mature structure and an affordable price. In the production of gear pumps, it has been recognized by many world-renowned OEM manufacturers. Among similar products, Lexmua gear pumps have the advantages of low noise, high mechanical efficiency/volumetric efficiency, and good product consistency. LEXMUA products can replace most imported gear pumps such as Rexroth, parker, shimadzu, marzocchi, capromi, salami, galtechi, etc.

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AZPF External Hydraulic Gear Pump

Displacements 4 cc - 28 cc

Nominal pressure 280 bar

Slide bearings for heavy duty applications

Drive shafts to SAE or ISO

Ports: threaded or flange

Wide range of configurations

Tandem and multi-pump configurations

If you want to wholesale  aluminum gear pump, please contact us.

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Aluminum Hydraulic Gear Pump 1.5PE\2PE\2.5PB\3PE

•Axial compensation achieved by the use of floating bushes that allow high volumetric efficiency throughout the working pressure range. •DU bearings to ensure high pressure capability. •12 teeth integral gear and shaft. •Aluminium body. •Cast iron flange and cover. •Double shaft seals.

If you want to wholesale high pressure external gear pumps, please visit our website.

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Hydraulic External Gear Pumps Type PFG-1 PFG-2 PFG-3

PFG-1 PGP-2 pumps provide flexibility, numerous displacements, features, and shaft/port options. The PFG-1 series PGP-2 series has earned an excellent reputation for rugged, dependable performance at continuous pressures and speeds. PFG-3 is a range of peak performance fixed-displacement gear pumps. Constructed of a high-strength extruded aluminum body with aluminum cover and flange, all pumps are pressure- balanced for exceptional efficiency.

If you want to wholesale Triple gear pump, please visit our website.

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GHY Gear Hydraulic Oil Pump High Pressure Gear Pump

1.  High precision gears 2. High strength aluminium alloy shell 3. lighter,compact,high efficiency,low noise. 4. weight: 1.20-1.40kg 5. widely used in truck, engineer machine,Hoisting and Conveying machine, mining machine,agriculture machine, etc.

If you are interested in Hydraulic Oil Pump, please contact us.

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Gear Pump Manufacturer Internal Pump EIPC3 EIPC5 EIPC6

• Internal gear pump with axial and radial gap compensation • Radial compensation with segments • Suction and pressure port radial • Field of application: Industrial hydraulic • Low noise • Long time life • Low pulsation (pressure pulsation~2 %) • Multi flow combinations

If you are interested in Internal Gear Pump, please click here,

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Marzocchi gear pump

GHP1A GHP2A high pressure gear pump provides SAE standard flange connection surface, G threaded oil port. GHP3A high pressure gear pump provides SAE standard flange connection surface, also can provide tapered shaft and G thread oil port. ALP1A ALP2A ALP3A ALP4A series gear pump has the characteristics of high working pressure, high speed, high volumetric efficiency and low noise. The pump body, flange and end cover are made of special pressure-resistant aluminum alloy die-casting. Various displacements and other series can be composed of duplex pumps and multi-pumps.

If you are interested in marzocchi hydraulic pump, please click here.