German dynaset pump dynaset model dynaset price

The most basic form of the dynaset pump consists of two gears of identical size meshing and rotating within a closely fitted housing. The interior of this housing resembles the shape of the number "8", with the two gears installed inside; the outer diameters and sides of the gears fit tightly against the housing. Material from the extruder enters between the two gears at the suction inlet, filling this space. It then moves along the housing as the teeth rotate and is finally discharged when the two gears mesh.

dynaset pump motor features

1) Compact structure, small size, and light weight: Composed of an aluminum alloy front cover, intermediate body, and rear cover, alloy steel gears, and aluminum alloy pressure plates. Two DU bearings are press-fitted into the front and rear covers respectively. DU material is the ideal bearing material for gear pumps, significantly extending the service life of the gear pump. 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 equipped with front bearings can withstand both radial and axial forces. 3) High speed and high pressure: Rotational 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 in hydraulic systems for automobiles, tractors, engineering machinery, agricultural machinery, and other mechanical equipment.

dynaset pump working principle

The concept of a gear pump is straightforward. 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 the shape of the number "8", with the two gears installed inside; the outer diameters and sides of the gears fit tightly against the housing. Material from the extruder enters between the two gears at the suction inlet, filling this space. It then moves along the housing as the teeth rotate and is finally discharged when the two gears mesh. Gear pumps are also known as positive displacement devices. Similar to a piston within a cylinder, when one tooth enters the fluid space of another tooth, the incompressible nature of the liquid prevents the liquid and the tooth from occupying the same space simultaneously. Consequently, the liquid is mechanically squeezed out. Due to the continuous meshing of the teeth, this phenomenon occurs continuously, providing a constant discharge volume at the pump outlet. The discharged volume per revolution remains consistent. As the drive shaft rotates uninterrupted, the pump discharges fluid without interruption. The pump's flow rate is directly related to its rotational speed. In practice, there is a minimal loss of fluid within the pump, as some fluid is used to lubricate the bearings and the sides of the gears. Furthermore, since a gap-free fit within the pump body is impossible, the fluid cannot be discharged from the outlet 100%. Therefore, a small amount of fluid loss is inevitable, preventing the pump's operating efficiency from reaching 100%. Nevertheless, the pump operates effectively, achieving efficiencies of 93% to 98% for most extruded materials. This pump is minimally 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 the damper conditions change during operation—for instance, if the filter becomes dirty or clogged, or if the back pressure of the restrictor increases—the pump will maintain a constant flow rate until the mechanical limit of the weakest component in the system is reached (a torque limiter is typically installed). There is actually a limit to the rotational speed of a pump, which primarily depends on the process fluid. If transferring 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 to fully fill the space between the two teeth on the suction inlet side when pushing high-viscosity fluids. If this space is not completely filled, the pump cannot discharge an 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 capability and cost.

dynaset pump maintenance and overhaul

(1) Inspect the plunger for scratches and corrosion; replace with new parts if necessary. (2) Check the mating condition of the plunger assembly. Insert the plunger end into the plunger sleeve and tilt it approximately 60°. If the plunger slides down slowly under its own weight, the mating is good. (3) Check the sealing performance of the plunger assembly. Hold the plunger sleeve with one hand, blocking the oil inlet at the top and side of the plunger with two fingers. Pull out the plunger with the other hand. If significant suction is felt and the plunger immediately retracts to its original position upon release, the plunger assembly seals well; otherwise, replace the plunger assembly. (4) Inspect the decompression band of the delivery valve assembly for wear, steps, or scratches; replace if necessary. (5) Check the mating condition of the delivery valve assembly. Block the lower hole of the delivery valve with one finger and gently press the delivery valve downward with another finger. When the finger is removed from the top of the delivery valve, if it automatically springs back to its original position, the delivery valve assembly seals well; otherwise, replace the delivery valve assembly. (6) Inspect the tappet body. The standard clearance between the fuel injection pump body and the tappet body is 0 to 0.03mm. If it exceeds 0.2mm, replace the parts. (7) Check the clearance between the plunger flange and the groove of the control sleeve. It should be 0.02 to 0.08mm. If it exceeds 0.12mm, the control sleeve must be replaced.

Weidou Intelligent Technology specializes in selling German dynaset piston pumps, dynaset gear pumps, dynaset diaphragm pumps, dynaset centrifugal pumps, dynaset piston pumps, dynaset vacuum pumps, dynaset screw pumps, dynaset submersible pumps, dynaset peristaltic pumps, dynaset lubrication pumps, dynaset vane pumps, dynaset metering pumps, dynaset hand pumps, dynaset barrel pumps, dynaset cam pumps, dynaset booster pumps, dynaset liquid pumps, and dynaset air pumps. Original imports from Germany. Welcome inquiries and orders from customers.