When it comes to hydraulic components, Bosch Rexroth and Parker Hannifin are two of the most well-known and trusted brands. Rexroth’s A4VG series 40 axial piston pumps and A6VM series motors as well as Parker’s PV080 series piston pumps are widely used in mobile and industrial applications where high power density, efficiency and reliability are key. In blog post, we’ll take a closer look at these popular hydraulic pump and motor series and discuss their key features and applications.
The Серия Рексрот A4VG 40 Variable Displacement Axial Piston Pumps
They are as known for their robust design and ability to handle high pressures. With displacements from 40 к 250 куб.см/об, these pumps can deliver flow rates up to 250 L/min and pressures up to 5,000 psi depending on the specific model. A unique feature of the A4VG pumps is the through-drive shaft design which eliminates the need for a splined shaft coupling on the input side. This improves balance and alignment during operation. The A4VG40 makes use of a tilting swashplate design to vary displacement, allowing flow rate and direction to be controlled precisely. Applications for these pumps include construction equipment, agriculture machinery, mining trucks, material handling systems, forestry equipment and more. The rugged A4VG design allows them to stand up to challenging environments and dusty, dirty conditions.
Complementing the A4VG axial piston pumps are Rexroth’s A6VM series external gear motors. Available in a wide range of displacements from 33 к 250 куб.см/об, these high-torque, low-speed motors work well in combination with the A4VG pumps for hydraulic drive systems. Key features of the A6VM motors include pressure compensation to prevent overspeeding, low noise levels, and multiple mounting options. The monoblock housing design improves stiffness and allows for higher radial forces. Rexroth A6VM motors are commonly used on conveyors, winches, rollers, augers, краны, presses and more. Being able to source both the pump and motor from Rexroth allows for an integrated hydraulic system with optimized efficiency.
Паркер Ханнифин, The PV080 Series
Moving over to Parker Hannifin, the PV080 series variable displacement piston pumps offer similar capabilities to the Rexroth A4VG line. Displacements range from 45 к 250 cc/rev with pressures up to 5,800 пси. The PV080 uses a yoke-style design which provides a compact envelope and lower installed height that is suited for equipment with tight packaging requirements. These pumps also feature a through-shaft design ideal for direct mounting to power sources. Key applications of the parker pv080 piston pumps include off-highway equipment, oil and gas machinery, mining trucks and excavators, agricultural equipment, лесозаготовительные машины, and construction equipment.
To dive deeper on the Parker PV080, some of its notable design elements include:
- Pressure compensation for stability and safety even during cold startups
- Dynamic balancing to minimize noise and vibration
- Integral charge pump for replenishing low pressure fluid
- Heavy duty bearings sized for 100,000 hour life
- Heat treating on critical components for fatigue resistance
- Optional porting configurations for installation flexibility
When it comes to service and repair of these Rexroth and Parker hydraulic components, having access to replacement parts is critical. Rexroth A6VM parts lists and service manuals allow for easier identification of required seals, shafts, bearings, and other wear items. For the PV080 pumps, Parker offers seal kits and individual parts for rebuilds and maintenance. Sourcing genuine OEM Rexroth and Parker parts ensures proper fit and performance.
For equipment operators and maintenance teams, understanding which components are installed on specific machines, having access to parts lists, and developing a relationship with a trusted hydraulic supplier are important. Companies like Оборудование Делфи can assist by providing repair and field service capabilities for Rexroth, Паркер, and other major hydraulic brands. Their experienced technicians and extensive replacement part inventory help customers minimize downtime and keep production moving.
Delphi Equipment Supply Quality Hydraulic Power Units
Whether you are spec’ing hydraulic power units for new equipment or maintaining existing systems with A4VG, A6VM, and PV080 components, relying on brands like Rexroth and Parker backed by support from suppliers like Delphi Equipment helps ensure optimal uptime and performance. With robust pump and motor designs capable of handling tough duties and replacement parts readily available, these hydraulic lines offer value for the most demanding applications.