Bucher Hydraulics New Series External Gear Pumps and Motors

Bucher Hydraulics – New Series External Gear Pumps and Motors

Recently, Bucher Hydraulics has developed a new series of external gear pumps and motors: AP/APM212

With improvements in design, manufacturing techniques, and manufacturing control based on the latest technology, Bucher Hydraulics has achieved high operating pressures, excellent volumetric and mechanical efficiency, minimal noise, reduced vibration, and low flow pulsation. This series includes a specially developed unit, Low Noise (LN), with even less operating noise.

The new AP/APM212 series of external gear pumps and motors reflects the ECOdraulics concept developed by Bucher Hydraulics. The goal of ECOdraulics is to reduce the burden on the environment by manufacturing products that meet the following criteria: reduced energy consumption, less noise or heat loss, and optimized efficiency through system design. The low pulsation design of the new AP/APM212 reduces both power unit noise and vibration in the entire hydraulic system. In addition, the new design meets customer needs for long life expectancy.

Product Advantages:

Lower pressure pulsation and less noise thanks to a higher number of teeth and new profile

Longer working lifetime due to high-performance material and innovative heat treatment

Larger and stronger shaft for increased transmitting torque

Integrated valves in the cover to save space and reduce assembly costs

Technical Specifications:

Displacement: 4.4–27.1 cm³/rev

Maximum continuous pressure: 250 bar

Fluid temperature range: -20 to +80°C

Recommended fluids: Hydraulic mineral oil-based

Viscosity range (recommended): 20–120 mm²/sec (cSt)

Permitted viscosity: up to 700 mm²/sec (cSt)

Permitted viscosity for starting: 2000 mm²/sec (cSt)

Cleanliness:

For operating pressure >170 bar: 21/18/15 (ISO 4406)

For operating pressure <170 bar: 22/19/16 (ISO 4406)

Standard sealing material: NBR + HNBR