Flexible
Clamp System

EVK with HEE

  • For medium and large presses
  • For various die dimensions
  • For clamping upper dies
  • For dies with straight clamping edge
  • Suitable for retrofitting

Mode of operation

  • The electric positioning unit moves the T-slot clamp along the T-slot.
  • A single-acting hydraulic cylinder generates the clamping force.
  • Unclamping of the hydraulic cylinder is effected by spring load with the operating pressure switched off.

Description

The electric positioning unit moves the hydraulic T-slot clamp by means of a chain. Hydraulic pressure is applied to the T-slot clamp to generate the clamping force. The hydraulic pressure must be maintained to secure the clamping force (e.g., with pilot-controlled check valves). Therefore, pressure control by means of a pressure switch on the hydraulic power pack is necessary. The electric positioning units may be switched off individually by the machine control so that these clamp units remain in their park position.

  • Clamping of different die sizes
  • Large clamping dimension tolerance
  • Short clamping time
  • Displacement path up to 1000 mm available
  • All important functions electrically monitored
  • High automation level
  • Central operation

  • Pilot-controlled check valves
  • Fittings
  • Hydraulic hoses / hydraulic accessories
  • Hydraulic power packs
  • Limit switches / cable
  • Plug connectors

Technical data

Positioning Unit EVK    
Motor: Type
Supply voltage		 DC
24V		 alternatively three-phase
400V 50 HZ
Motor power [W] 8   90
Positioning speed [mm/s] 150   145
Limit switches: Type
Switch voltage
Designation		 • Inductive proximity switches
• PNP normally open; 10-30V DC
• Clamp unit in park position S1
• Clamp unit at the die S2
• End of displacement path (optional)S5
Plug connector Han® 25 D
Han® 6Eadditionallyforthree-phasedrive)

 

Clamp Unit HEE 63 HEE 85
Clamping force [kN] /
at operating pressure [bar]		 63 / 400 85 / 400
max. loading force [kN] 1) 80 100
max. operating pressure[bar] 400
Clampingdimensiontolerance[mm] +/- 4
Stroke [mm] 12
Oil volume: Clamp [cm³] 19 25,5
max.  operating temperature [°C] 70
Weight [kg] 16 19

 

1)  Mechanical damage may occur at higher load.

Fixing is achieved with four hexagon head screws with flange (DIN 6921) M10x30, strenght class 8.8 (not included)