German INTEGRAL HYDRAULIK pump INTEGRAL HYDRAULIK model INTEGRAL HYDRAULIK price

INTEGRAL HYDRAULIK pumps are also known as positive displacement devices. Like a piston in a cylinder, when a tooth enters the fluid space of another tooth, the liquid and the tooth cannot occupy the same space at the same time because the liquid is incompressible. Thus, the liquid is mechanically squeezed out. Due to the continuous meshing of the teeth, this phenomenon occurs continuously, providing a continuous discharge volume at the pump outlet. The discharged volume is the same for each revolution of the pump. As the drive shaft rotates continuously, the pump discharges fluid continuously. The pump flow rate is directly related to the pump speed.

INTEGRAL HYDRAULIK pump motor features

1) Compact structure, small size, and light weight: Composed of an aluminum alloy front cover, intermediate body, and rear cover, along with alloy steel gears and aluminum alloy pressure plates. Two DU bearings are press-fitted into the front and rear covers respectively. DU material is an ideal bearing material for gear pumps, significantly extending the gear pump's service life. 2) Reliable operation: The pressure plate is the main component for radial and axial pressure compensation. It reduces bearing load and automatically adjusts the axial clearance of the gear pump, thereby effectively improving the performance indicators and operational reliability of the gear pump. The GM5 and GPC4 series gear motors offer four structural configurations: single rotation without front bearing, double rotation without front bearing, single rotation with front bearing, and double rotation with front bearing. Gear motors with front bearings can withstand radial and axial forces. 3) High speed and high pressure: Speed ranges from 3000 to 4000 rpm. Theoretical torque ranges from 17N.m to 64N.m, with pressures reaching up to 20-25MPa. 4) Connection methods suitable for imported machinery and engineering equipment: Complies with SAE and national standard GB for mounting flanges, shaft extensions, and inlet/outlet port connections. Widely applicable to hydraulic systems in automobiles, tractors, engineering machinery, agricultural machinery, and other mechanical equipment.

INTEGRAL HYDRAULIK pump working principle

The concept of a gear pump is simple. Its most basic form consists of two gears of identical size meshing and rotating within a closely fitted housing. The interior of this housing resembles a figure "8", with the two gears installed inside. The outer diameter of the gears and their sides fit closely with the housing. Material from the extruder enters the space between the two gears at the suction inlet, filling this space. As the teeth rotate, the material moves along the housing and is finally discharged when the two teeth mesh. Gear pumps are also known as positive displacement devices. Like a piston in a cylinder, when a tooth enters the fluid space of another tooth, the liquid and the tooth cannot occupy the same space at the same time because the liquid is incompressible. Thus, the liquid is mechanically squeezed out. Due to the continuous meshing of the teeth, this phenomenon occurs continuously, providing a continuous discharge volume at the pump outlet. The discharged volume is the same for each revolution of the pump. As the drive shaft rotates continuously, the pump discharges fluid continuously. The pump flow rate is directly related to the pump speed. In practice, there is a small amount of fluid loss within the pump because this fluid is used to lubricate the bearings and the sides of the gears. Furthermore, the pump body cannot have a gap-free fit, so it is impossible for the fluid to be discharged 100% from the outlet. Therefore, a small amount of fluid loss is inevitable, preventing the pump's operating efficiency from reaching 100%. However, the pump can still operate well, achieving efficiencies of 93% to 98% for most extruded materials. This pump is not significantly affected by changes in fluid viscosity or density during the process. If a damper, such as a filter screen or restrictor, is placed on the discharge side, the pump will push the fluid through them. If this damper changes during operation—for example, if the filter becomes dirty or clogged, or if the back pressure of the restrictor increases—the pump will maintain a constant flow until the mechanical limit of the weakest component in the system is reached (usually equipped with a torque limiter). There is actually a limit to the pump's speed, which mainly depends on the process fluid. If pumping oil, the pump can rotate at high speeds; however, if the fluid is a high-viscosity polymer melt, this limitation increases significantly. It is crucial that the space between the two teeth on the suction side is fully filled with high-viscosity fluid. If this space is not completely filled, the pump cannot discharge the accurate flow rate. Therefore, the PV value (pressure × flow velocity) is another limiting factor and a process variable. Due to these limitations, gear pump manufacturers offer a range of products with different specifications and displacements (volume discharged per revolution). These pumps are matched to specific application processes to optimize system capacity and price.

INTEGRAL HYDRAULIK pump trapped oil phenomenon

For stable operation of a gear pump, the contact ratio of gear meshing must be greater than 1. Consequently, there are always two pairs of gears meshing simultaneously, trapping a portion of oil in the closed cavity formed between these two pairs of teeth. The volume of this closed cavity gradually decreases as the gears rotate, and then gradually increases. The reduction in the closed cavity volume compresses the trapped oil, generating high pressure. This causes the oil to squeeze out through gaps, leading to oil heating and imposing additional loads on components. Conversely, the increase in closed cavity volume creates a local vacuum, causing dissolved gases in the oil to separate and resulting in cavitation. These effects produce strong vibration and noise, known as the trapped oil phenomenon in gear pumps. 1) Hazards: Significant radial unbalanced forces can cause shaft bending, contact between the gear tips and the housing, accelerated bearing wear, and reduced bearing life. 2) Elimination method: To eliminate trapped oil, relief grooves are typically machined into the side cover plates. When the closed cavity volume decreases, it connects to the pressure chamber via the left relief groove. When the volume increases, it connects to the suction chamber via the right relief groove.

Weidou Intelligent Technology specializes in selling German INTEGRAL HYDRAULIK gear pumps, INTEGRAL HYDRAULIK gear pumps, INTEGRAL HYDRAULIK diaphragm pumps, INTEGRAL HYDRAULIK centrifugal pumps, INTEGRAL HYDRAULIK piston pumps, INTEGRAL HYDRAULIK vacuum pumps, INTEGRAL HYDRAULIK screw pumps, INTEGRAL HYDRAULIK submersible pumps, INTEGRAL HYDRAULIK peristaltic pumps, INTEGRAL HYDRAULIK lubrication pumps, INTEGRAL HYDRAULIK vane pumps, INTEGRAL HYDRAULIK metering pumps, INTEGRAL HYDRAULIK hand pumps, INTEGRAL HYDRAULIK drum pumps, INTEGRAL HYDRAULIK lobe pumps, INTEGRAL HYDRAULIK booster pumps, INTEGRAL HYDRAULIK liquid pumps, and INTEGRAL HYDRAULIK air pumps. Original imports from Germany. Welcome inquiries and orders from users.