Rexroth is a leading manufacturer of high-quality hydraulic pumps used in a wide range of industrial applications. They recently unveiled three new series of variable displacement axial piston pumps that offer improved performance, efficacité, and reliability compared to previous models. Dans cet article de blog, we’ll take a closer look at the key features and benefits of the Rexroth A6VM Series 71, A4VG Series 40, and A4VG Series 32 pump ranges.
A6VM Series 71 Pumps
The A6VM Series 71 from Rexroth represents the latest generation of their proven A6VM variable displacement axial piston pumps. With a maximum rated pressure of 5,075 psi, these pumps are ideal for demanding hydraulic applications that require high power density in a compact, rugged package.
Some of the notable features of the A6VM Series 71 include:
- Flow rates up to 215 gpm
- Displacements offered from 1.3 à 4.8 cubic inches
- Improved efficiency resulting in up to 15% reduction in power loss
- High-strength cast iron housing, valve plate, and bearing plate
- New end cap and seal designs enhance service life
- Lower noise emission and vibration
The A6VM71 incorporates the latest technologies to optimize performance and efficiency. Rexroth redesigned the valve plate, swashplate pistons, and slipper pads using computational fluid dynamics and finite element analysis. This helps reduce power loss while enhancing strength and wear resistance.
By fine-tuning the pump’s internal geometry, Rexroth was able to minimize noise and vibration levels. This makes the A6VM71 well suited for use in machinery and equipment where quiet operation is beneficial.
Overall, the upgrades in the A6VM Series 71 translate to more reliable and economical operation under demanding conditions. The pumps can help reduce downtime and operating costs in industrial hydraulics applications ranging from metalworking presses to injection molding machines.
A4VG Series 40 Pumps
For medium-pressure hydraulic needs, Rexroth offers the A4VG Series 40 range of swashplate axial piston pumps. With maximum pressures between 2,900 et 4,350 psi, these highly flexible pumps can tackle a wide scope of duties.
Key features of the A4VG40 line include:
- Déplacements de 0.83 à 5.5 cubic inches available
- Pressure options from 2,900 à 4,350 psi
- Suitable for closed and open circuits
- Excellent efficiency with reduced internal losses
- Rugged construction with cast iron housing
- Designed for long service life with minimal maintenance
Rexroth optimized the A4VG40 pumps for on/off machine duty cycles and intermittent operation while retaining excellent full-load performance. This was achieved by focusing on attributes like friction reduction, wear resistance, increased strength, and thermal management.
The A4VG40 series utilizes advanced computational modeling and simulation techniques to maximize efficiency. Improvements include redesigned kidney ports, optimized piston and slipper geometry, and reduced internal leakage. This can lead to substantial energy savings over older and competitor pump designs.
With its modular configuration, performance options, and broad flexibility, the A4VG Series 40 pumps can satisfy the needs of many medium-pressure hydraulic applications. They provide an efficient and reliable pumping solution across industries.
A4VG Series 32 Pumps
At the smaller displacement end of Rexroth’s new A4VG pump range is the A4VG Series 32. With ten models offering displacements from 0.57 à 2.6 cubic inches, these more compact pumps still pack impressive performance.
Here are some of the key attributes of the A4VG32 line:
- Maximum rated pressures up to 5,075 psi
- High power density in a smaller package
- Flow rates up to 34 gpm depending on model
- Designed for noise-sensitive applications
- Direct mount versions for motor or engine drives
- High-efficiency operation with reduced internal friction
Rexroth engineered the A4VG32 pumps to provide the right balance of size and performance. While more compact than larger A4VG models, they retain key features for quiet, efficient operation. This includes the use of computational fluid dynamics to optimize internal geometries.
The A4VG32 series employs a similar modular platform as the larger A4VG pumps. This allows the pumps to be tailored with different displaced volumes, mounting configurations, controls, vannes, and other options.
With their versatile mounting and drive arrangements, the A4VG32 pumps can be integrated into tight hydraulic power unit designs across industries. Their high efficiency helps minimize operating costs over the long run.
A Complete Pump Range For Modern Hydraulic Systems
Rexroth’s new A6VM Series 71, A4VG Series 40, and A4VG Series 32 pump ranges offer solutions for the full spectrum of hydraulic system pressures and power needs. Supported by Rexroth’s extensive application and design expertise, these pumps provide superior performance and reliability to reduce downtime and costs over the life of the machinery.
The innovative designs of these next-generation axial piston pumps from Rexroth represent the state-of-the-art in hydraulic pumping technology. With their optimized efficiency and controllability, they can improve the overall effectiveness of modern hydraulic drives and control systems.