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Power units

completely equipped power units as well as

basic power units that will be equipped as per customer's specification.

with gear pumps or radial piston pumps

flow rate: 0.82…24 l/min
operating pressure: 30 .. 500 bar
oil volume of the reservoir: 5 .. 63 l
motor: 0.15 .. 7,5 kW – 400 VAC

Series Data sheet Technical data
D8.026
D8.026
 
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D8.026 Power Units in Modular Design

 

Operating pressure 30 to 500 bar

flow rate 0.9 to 12 l/min

reservoir sizes 11 l, 27 l, 40 l, 63 l

The power units of this series consist of individual modules that are selected depending on the application and are assembled on the basis of a type code to a power unit ready for use.
Modules
- power unit (reservoir, pump, motor)
- connecting block basic functions
- valve block with up to 4 control circuits
- electronics

D8.010
D8.010
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D8.010 Hydraulic power units

 

energy-saving intermittent cycling

max. flow rate 0.5, (0.8) l/min

max. operating pressure 200 bar

flow rate: 0.52 l/min
operating pressure: 30 / 200 bar bar
reservoir volume: approx. 3.5 l
usable oil volume: approx. 1.5 l
continuous duty: up to 60 s
motor rating: 0.15 kW
motor voltage: 400 VAC 50 Hz

D8.0115
D8.0115
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D8.0115 Hydraulic power units

 

ready for connection

energy-saving intermittent cycling

max. flow rate 0.82/2,1/3.5 l/min

max. operating pressure 500/250/160 bar

flow rate: 0.82 .. 3.51 l/min
operating pressure: 160 .. 500 bar
reservoir volume: approx. 5 l
usable oil volume: approx. 3.2 l
continuous duty: up to 120 s
motor rating: 0.75 .. 1.1 kW
motor voltage: 400 VAC 50 Hz

D8.013
D8.013
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D8.013 Power units

 

with two-hand operator console

max. operating pressure 500/250/160 bar

flow rate: 0.9 .. 4.5 l/min
operating pressure: 160 .. 500 bar
reservoir volume: approx. 11 l
usable oil volume: approx. 6 l
connections: G 1/4
motor: 0.75 .. 1,1 kW – 400 VAC

D8.015
D8.015
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D8.015 Power units

 

with manual or programmable proportional pressure adjustment

flow rate: 0.9 l/min
operating pressure: 50 .. 500 bar
reservoir volume: approx. 11 l
usable oil volume: approx. 6 l
connections: G 1/4
motor: 0.75 – 400 VAC

D8.021
D8.021
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D8.021 Power units

 

basic version

flow rate: 0.9 .. 6.2 l/min
operating pressure: 50 .. 500 bar
reservoir volume: approx. 11 l
usable oil volume: approx. 6 l
motor: 0.75 .. 1,5 kW – 400 VAC

D8.031
D8.031
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D8.031 Power units

 

Oil reservoir V = 27 l, 40 l and 63 l

flow rate: 4.5 .. 24 l/min
operating pressure: 50 .. 500 bar
reservoir volume: approx. 27, 40 and 63 l
usable oil volume: approx. 14, 20 and 32 l
motor: 0.75 .. 7,5 kW – 400 VAC

show
figure 1: power unit D8.010













 
show
figure 2: power unit D8.0115
 
show
figure 3: power units with two-hand operator console D8.013





















 
show
figure 4: power unit D 8.015













 
show
figure 6: power unit D 8.021 and D 8.031


 
show
figure 7: Power Units in Modular Design





















































 

Power units D8.010 (figure 1)
with energy-saving intermittent cycling

Application
These power units are especially suitable for the operation of small and simple hydraulic clamping fixtures.
One clamping circuit for double acting cylinders is available.
The low weight also allows mobile use.

Energy-saving intermittent cycling
The electric motor is only running, as long as hydraulic oil is really required, that means to
• extend and retract the clamping cylinders
• build up the operating pressure

Further description, technical data, hydraulic and electric circuit diagrams
data sheet D8.010

Power units D8.015 (figure 2)
with energy-saving intermittent cycling

Application
These power units are especially suitable for the operation of small to medium-sized hydraulic clamping fixtures.
Maximally 2 clamping circuits for single or double-acting cylinders are available, that can be controlled independently of each other. Thereby also "shuttle machining" is possible, i.e. that during machining of the workpiece in one fixture, workpiece change on the second fixture can be made.

Further description, technical data, hydraulic and electric circuit diagrams
data sheet D8.0115

Power units with two-hand operator console D8.013 (figure 3)

Two-hand operator console
The two-hand operator consoles are required for fixtures and installations with dangerous applications,
in order to keep hands from the effective area of the dangerous movement.
Both mushroom push-buttons have to be operated simultaneously within 0.5 seconds.The basic housing of the two-hand operator console is made of plastics (Lexan 503R colour RAL 7035) and equipped with two mush-room push-buttons and one emergency palm button. The console is connected with a 3m long cable to the electric control.
The two-hand operator consoles correspond to the demands as per EN 574.

Electric control
The electric control is installed in a control box 380x380x210mm, which is connected by a mounting frame to the power unit.
The electric control corresponds to VDE 0100.

Hydraulics
The hydraulic control of these power units is adapted to the function safety of the two-hand operator console and the electric control.
The control is designed for double-acting cylinders.
A cylinder motion by the 4/3 directional control valve is only possible, if the valve solenoid is energized. In case of voltage drop the cylinder motion will be interrupted.In connection with the two-hand operator console and the electric control the power unit corresponds to UVV for power-operated clamping fixtures.

Further description, technical data, hydraulic and electric circuit diagrams
data sheet D8.013

Power unit D 8.015 (figure 4)
with manual or programmable proportional pressure adjustment

Application
Hydraulic power units are used for clamping several fixtures with different clamping pressures.
When using sensitive components, the clamping pressure or clamping force has to be optimised.
For such applications a hydraulic power unit with proportional pressure adjustment is required, particularly if the pressures are frequently to be readjusted.
Positioning, supporting and clamping of workpieces on machine tools are part of the machining cycle.
In most cases the sequence of the machining steps is determined by the N/C programme.
The programmable pressure adjustment allows to adjust the clamping pressure by means of the programme to the corresponding pressure of the machining step; therefore the M-functions of the machine control are used.
The power unit is particularly suited for applications where pressure adjustments are quite often adjusted manually.Power units for double-acting cylinders and for shuttle machining are available.

Further description, technical data, hydraulic and electric circuit diagrams
data sheet D8.015

Power units D8.021 and D8.031 (figure 6)

Control variants
By mounting different valve groups hydraulic controls as needed can be delivered.

Design
Design of the hydraulic as well as the electric control as per customer's requirements.
Please contact us.

Further description, technical data, hydraulic and electric circuit diagrams
data sheet D8.021
data sheet D8.031

Power Units in Modular Design D8.026 (figure 7)
Operating pressure 30 to 500 bar, flow rate 0.9 to 12 l/min
reservoir sizes 11 l, 27 l, 40 l, 63 l

Application
For the operation of hydraulic clamping fixtures and other handling and clamping systems on machine tools.

Description
The power units of this series consist of individual modules that are selected depending on the application and are assembled on the basis of a type code to a power unit ready for use.

Modules
• power unit (reservoir, pump, motor)
• connecting block basic functions
• valve block with up to 4 control circuits
• electronics

Characteristics
• for single and double-acting cylinders
• continuously adjustable operating pressure
• expandable to up to 8 pressure circuits
• constant flow rate
• wide range of valves
• wide range of hydraulic functions
• energy-saving mode S3 (intermittent mode) or S6 (unpressurised cycle)
• supplied ready for connection

Equipment - Standard
• connecting block with pressure relief valve
• pressure filter 10 μm
• oil level gauge
• stick thermometer
• design without piping

Equipment - Options
• electronic system pressure switch (with teach-in function)
• system pressure switch or machine tool interlock, mechanical or electronic
• electrical oil level control
• electrical temperature control
• return filter
• electrical filter control
• electric control
• terminal box
• foot switch or manual switch
• key switch

Further description, technical data, hydraulic and electric circuit diagrams
data sheet D8.026

 

for power units D8.010

  • terminal box or electric control
  • pressure switch, mechanical or electronic
  • machine tool interlock
  • external release
  • foot switch or manual switch
  • handle
  • discharge valve
  • temperature and oil level control

data sheet D8.010

for power units

  • terminal box or electric control
  • pressure switch, mechanical or electronic
  • machine tool interlock
  • foot switch or manual switch
  • handle
  • temperature and oil level control

data sheet D8.0115

For power units D8.021 and D8.031

  • High-pressure filters
  • Filter control
  • Temperature and oil level control
  • Equipment as per customer's request