Technomech Engineering

Hydraulic Pumps

What is a gear pump and for which hydraulic application do you need it?

A gear pump is used in many hydraulic systems because of the simple design and widespread availability. It has only few moving parts, works smoothly, and operates very well at pressures around 210 bar. In a gear pump, the displacement chambers are formed between the housing of the hydraulic pump and the rotating gear wheel (or gear wheels, depending on model or hydraulic pump design). Gear pumps are hydraulic pumps that are available in many different types.

Use external gear pumps as cost effective solution or internal gear pumps for high volumetric efficiency.

The most common gear pump in the hydraulic market is the external gear pump. It is popular because of the low weight and wide speed range at a relatively low cost. internal gear pump are used when high efficiency or low operating noise is of importance. A gear ring pump works with a stator and a rotor where planetary movement of the rotor results in flow. screw pump work with worm gears within the housing and possess an extremely low operating noise level.

Types Of Gear Pumps:

What are vane pumps and for which hydraulic application do you need these supplies?

Vane pumps are hydraulic pumps that operate at very low noise levels, and you can buy them through our hydraulic system services. Hydraulic vane pumps operate with much lower flow pulsation, meaning constant flow. Therefore, vane pumps produce less noise while maintaining a relatively high speed of up to 3,000 rpm. Small hydraulic vane pumps like the Parker Denison T7A or T7B, with higher displacement volume of 50 cc, have a maximum speed of 3,600 rpm at hydraulic system pressures of up to 300 bar intermittent.

Vane pumps are hydraulic supplies that operate with much lower flow pulsation to reduce noise levels

The hydraulic vane pump finds its use in die casting and injection molding machines in industry, as well as in land and road construction machinery. The operating pressure of this hydraulic equipment does normally not exceed 180-210 bar. However, in specially designed vane pumps the operating pressure may go well over 200 bar and up to 300 bar. Parker Hannifin has Denison vane technology to provide us with the best solution in the market of fixed displacement balanced vane pumps.

Types Of Vane Pumps:

What is a piston pump and for which hydraulic application do you need it?

Hydraulic piston pumps can handle large flows at high hydraulic system pressures. The piston pump is a hydraulic pump that delivers optimum efficiency and reliability while maintaining a compact size with a high power density. In these pumps, the pistons accurately slide back and forth inside the cylinders that are part of the hydraulic pump. The pistons’ sealing properties are excellent, making it possible to operate at high pressures with low fluid leakage.

Piston pumps are the hydraulic pumps with the highest pressure rating and best overall efficiency.

Due to low fluid leakage, hydraulic piston pumps operate at very high volumetric efficiency levels. The plungers may consist of valves at the suction and pressure ports or with input and output channels. Piston pumps with valves at the ports are better suited to operate at higher system pressures due to better sealing characteristics. Applications are mobile and construction equipment, marine auxiliary power, metal forming and stamping, machine tools and oil field equipment.

Types Of Accumulators Accessories:

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