Rexroth Internal Gear Pump from Germany

Rexroth Internal Gear Pump from Germany

There is actually a limit to the speed of a pump, which mainly depends on the process fluid. If oil is being transported, the pump can rotate at a high speed. However, when the fluid is a high viscosity polymer melt, this limit is greatly reduced.
It is very important to push high viscosity fluid into the two tooth space on one side of the suction port. If this space is not fully filled, the pump cannot discharge accurate flow, so PV value (pressure x flow rate) is also another limiting factor and a process variable. Due to these limitations, gear pump manufacturers will offer a range of products in different specifications and displacements (the amount discharged per revolution). These pumps will be matched with specific application processes to achieve system capacity and price.
The gear and shaft of PEP-II pump are integrated, using a whole body quenching process, which can achieve a longer working life. The "D" type bearing combines a forced lubrication mechanism, allowing the polymer to pass through the bearing surface and return to the inlet side of the pump to ensure effective lubrication of the rotating shaft. This feature reduces the possibility of polymer retention and degradation. The precision machined pump body can match the "D" type bearing with the gear shaft, ensuring that the gear shaft is not eccentric to prevent gear wear. The Parkool sealing structure and PTFE lip seal together form a water-cooled seal. This seal does not actually touch the surface of the shaft, and its sealing principle is to cool the polymer to a semi molten state to form a self seal. Rheoseal sealing can also be used, which has reverse spiral grooves machined on the inner surface of the shaft seal to allow the polymer to be back pressed back to the inlet. For ease of installation, the manufacturer has designed a circular bolt mounting surface to match the flange installation of other equipment, making the manufacturing of cylindrical flanges easier.
The PEP-II gear pump is equipped with heating elements that match the specifications of the pump, which can be optionally selected by users to ensure rapid heating and heat control. Unlike the heating method inside the pump, the damage to these components is limited to one board and is not related to the entire pump.
driving device
gear pumpDriven by an independent motor, it can effectively block upstream pressure and flow fluctuations. The pressure pulsation at the outlet of the gear pump can be controlled within 1%. Using a gear pump on the extrusion production line can increase the flow output speed and reduce the shear and residence time of materials inside the extruder

Rexroth Internal Gear Pump from Germany
External gear pumpIt is a widely used gear pump, usually referring to an external gear pump. Its structure is shown in Figure 5-14, mainly composed of a driving gear, a driven gear, a pump body, a pump cover, and a safety valve. The sealed space formed by the pump body, pump cover, and gear is the working chamber of the gear pump. The axles of the two gears are respectively installed in the bearing holes on the two pump covers, and the driving gear shaft extends out of the pump body and is driven to rotate by the electric motor. The external gear pump has a simple structure, light weight, low cost, reliable operation, and wide application range.
When the gear pump is working, the driving wheel rotates together with the electric motor and drives the driven wheel to rotate accordingly. When the meshing teeth on one side of the suction chamber gradually separate, the volume of the suction chamber increases, the pressure decreases, and the liquid in the suction tube is sucked into the pump; The inhaled liquid is divided into two paths and pushed into the discharge chamber by the gear in the tooth groove. After the liquid enters the discharge chamber, due to the continuous meshing of the teeth of the two gears, the liquid is squeezed and enters the discharge pipe from the discharge chamber. The driving gear and the driven gear continuously rotate, allowing the pump to continuously suck in and discharge liquid.
The pump body is equipped with a safety valve. When the discharge pressure exceeds the specified pressure, the conveying liquid can automatically open the safety valve, allowing the high-pressure liquid to return to the suction pipe.
Our main products include imported brands such as Bosch Rexroth, Aventis, AIRTEC, ASCO, Atos, Parker Parker, B&R, Bentley Bently, Duplomatic, VICKERS, and Eaton Vickers from the United States.

R900932162 PGH4-21/040RE11VE4
PGH4-2X/063RE07MU2
PGH4-2X/040RE11VE4
PGH4-2X/025RE11VU2
PGH4-2X/100RE07VE4
PGH4-21/025RE11VU2
PGH4-2X/050RE11VU2
PGH4-2X/040RE11VE4
PGH4-2X/040RE11VE4
PGH4-21/050RE11VU2=R90932159
PGH4-2X/050RE11VU2
PGH4-21/020RE11VU2
PGH4-21/020LE11VU2
PGH4-21/040RE11VU2
PGH4-21/040RE11VE4
PGH4-21/020RE11VU2

Rexroth gear pump | Rexroth plunger pump | Rexroth gear pump | Bosch hydraulic pump | Rexroth gear pump in stock supply
German Rexroth Gear Pump * Supply Center welcomes orders
Rexroth Bosch Group in Germany supplies a large amount of spot goods to Bosch Rexroth gear pumps in Germany

Professional agent and distributor of German BOSCH REXROTH hydraulic components:
REXROTH plunger pump A10VSO, REXROTH directional valve 4WE, REXROTH overflow valve DBW
REXROTH throttle valve Z2S, REXROTH vane pump PV7, REXROTH pressure relay HED
BOSCH amplifier proportional valve 0811, BOSCH gear pump 0510 and other series are supplied in large quantities

Three major commitments:
1. Guaranteed brand new * German BOSCH REXROTH
2. Ensure safe and timely delivery
3. Ensure the quality of after-sales service

As a manufacturer of gearboxes and hydraulic systems, transmission and control expert Rexroth provides system solutions for wind turbine manufacturers
Bosch Rexroth is an expert in transmission and control technology. With rich experience in transmission, control, and walking machinery, Bosch Rexroth serves over 80 countries,
More than 500000 customers provide customized solutions, which are in the global market for industrial and factory automation, mobile machinery applications, and renewable energy applications.

In 2008, Bosch Rexroth had sales of nearly 5.9 billion euros and had over 35300 professional employees.
Since 1978, Bosch Rexroth has been operating in China and has established factories in Shanghai, Beijing, Changzhou, and Shenzhen.

Classification of hydraulic components
Power components: gear pump, vane pump, plunger pump, screw pump;
Execution components: hydraulic cylinder, piston hydraulic cylinder, plunger hydraulic cylinder, swing hydraulic cylinder, combination hydraulic cylinder;
Hydraulic motors: gear hydraulic motors, blade hydraulic motors, plunger hydraulic motors;
Control components: directional control valve, one-way valve, directional valve;
Pressure control valves: overflow valves, pressure reducing valves, sequence valves, pressure relays, etc;
Flow control valves: throttle valve, speed regulating valve, diversion valve;

Sales BOSCH-REXROTH Dr. - Rexroth Hydraulic Components: Electronic Units, Pressure Switches, Pressure Relays, Hydraulic Motors, Gear Pumps, Pressure Reducing Valves, Directional Valves, Vane Pumps, Electromagnetic Valves,
Variable displacement pump, pilot operated pressure reducing valve, plunger pump, solenoid valve, superposition valve, relief valve, proportional valve ..