Flexible
Clamp System

EVK with DHKZ

  • For medium and large presses
  • For various die dimensions
  • For clamping upper dies
  • For dies with U-recess
  • Suitable for retrofitting

Mode of operation

  • The electric positioning unit moves the self-locking clamp unit along the T-slot.
  • A double-acting hydraulic cylinder generates the clamping force via a wedge mechanism

Description

The electric positioning unit moves the self-locking clamp unit by means of a chain. The clamping force is generated hydraulically by a wedge mechanism. The clamp unit is mechanically self-locking. Hydraulic pressure is only required for clamping and unclamping. 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, where they are clamped.

  • Clamping of different die sizes
  • Short clamping and unclamping time
  • Clamping force is maintained by mechanical self-locking
  • Displacement path up to 1000 mm available
  • Clamping in the park position possible
  • 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® 6 E (additionally for three-phase drive)

 

Clamp Unit MHKZ 100
Clamping force [kN]/
at operating pressure [bar]		 100 / 80
max. loading force [kN] 1) 125
Clamping dimension tolerance [mm] +/- 2
Stroke [mm] 7
Pressure: Clamp / unclamp [bar] 80 / 120
Oil volume: Clamp / unclamp [cm³] 260 / 260
max. operating temperature [°C] 70
Weight [kg] 20

 

1) Mechanical damage may occur at higher load.

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