Servo hydraulics

Servo hydraulic power pack type HS

The servo hydraulic power pack type HS contains a very compact and powerful servo electric motor. Due to "Power on Demand" it impresses with high energy efficiency and can do without additional cooling. With the servo unit type HS, reversing operation can be realized without additional valve technology. It is also characterized by its small footprint, compact design and low noise emission. The unit is used in injection molding machines, machine tools, punching and bending machines, and straightening machines, among others. Discover our solutions for press lines in the video: Thanks to hydraulics - Solutions press feeding

Technical data

• Operating pressure pmax: 150 bar
• Displacement volume Vmax: 3.2 cm³/rev
• Usable volume Vuse max: 0.3 l

Data sheet: D 6347

Electro-hydraulic drive type ePRAX® modular

The patented ePRAX® modular electro-hydraulic drive is tailored to the special requirements of drives for CNC press brakes. All required components can be assembled using a modular design, ensuring optimal use of the installation space through a flexible layout. The ePRAX® modular complies with the valid accident prevention regulations and is certified with concept assessment no. 18003.

Technical data

• Operating pressure p_max: 320 bar
• Flow rate Q_max: 50 lpm
• Rated power: 24.3 kW (per axis)
• Installation position: horizontal (cylinder module, tank module) or as necessary (servo power module)

Data sheet: D 6340

Electro-hydraulic drive type ePRAX® max

The patented ePRAX® electro-hydraulic drive combines the advantages of both drive technologies in a single, powerful and ready-for-connection system. Thanks to its hydraulics, it is powerful and durable, and it does not need any external oil lines due to its integrated design. Speed control takes place independently for each axis via the ePRAX controller. This drive has been specially optimized for press brakes and, through the targeted use of stored drop energy for the return stroke, it provides an extremely high level of dynamics while also achieving significant energy savings. The ePRAX® max complies with the valid accident prevention regulations and is certified with certificate of unit approval no. 13005.

Technical data

• Nominal force per machine: 1,100 to 1,700 kN (with two ePRAX max)
• Rapid speed: up to 230 mm/s
• Positioning accuracy: 5 µm
• Working stroke: 280 mm (standard)

Data sheet: D 6341

Power module type MPLM

Motor pump unit as link between electrical and hydraulic system.

In HAWE's motor-pump units, an electric motor and the hydraulic pump are directly connected via a flange. Different motor types and pump types can be combined. This makes it possible to generate emission-free hydraulic power from an electric drive train

Technical data

• Nominal force per machine: 1,100 to 2,500 kN (with two ePRAXs)
• Rapid speed: up to 230 mm/s
• Positioning accuracy: 5 µm
• Working stroke: 280 mm (standard)

Data sheet: D 6334

Proportional amplifier type EV2D

The electronic proportional amplifier EV2D is a multi-channel amplifier for controlling or regulating up to six actuators. Various adjustable parameters allow an optimal adaptation to the respective application. Due to the current feedback measurement at the valve outputs, influences of temperature and voltage supply are detected and regulated out. Sensor signals and setpoints can be read analog or via CAN interface. Optionally, the EV2D is available with LAN interface. An integration into the machine control via EtherCAT is possible.

Technical data

• Supply voltage: 19..30 V DC
• Output current: 4 A

Data sheet: D 7821

Suitable electronics downloads