Hydraulic Block
Clamp Unit

HBSF

  • For medium and large presses
  • For clamping moving bolsters as well as upper and lower dies
  • For dies with straight clamping edges
  • Fixed installation to the sides of the press columns, on the press bed or slide

Mode of operation

  • A double-acting hydraulic cylinder pushes a wedge onto the clamping edge of the die.
  • The clamping force is generated by the angle of the wedge.
  • The clamp unit is unclamped by reversing this sequence.

Description

The hydraulically driven wedge clamp unit generates the required clamping force by means of the wedge mechanism. In order to secure the clamping force, hydraulic pressure must be maintained (with pilot-controlled check
valves, optional). Pressure sensing by the pressure switch on the hydraulic power pack is required. A spring holds the clamping wedge in clamping position and ensures that the die weight is held even in case of pressure fall.

In its park position, the clamping wedge is fully retracted into the housing and therefore protected against damage. To ensure that the clamping wedge remains in the park position during die change, the operating pressure must
be maintained or a pilot-controlled check valve must be integrated into the unclamping line. Park and clamping positions can be monitored by limit switches (optional).

  • Low space requirements due to compact dimensions
  • Large clamping dimension tolerance
  • Minimal installation investment
  • Central operation
  • Continuous clamping force monitoring possible (pressure sensing)
  • Monitoring of clamping and unclamping positions possible (optional)
  • High mechanical load capacity
  • Holding function without hydraulic pressure

  • Pilot-controlled check valves
  • Flow-control valves
  • Fittings
  • Hydraulic hoses / Hydraulic accessories
  • Hydraulic power packs

Technical data

Type HBSF 10
Clamping force [kN] 100
max. loading force [kN] 1 ) 150
max. holding force of the spring [kN] 1 ) 8
max. operating pressure clamp [bar] 60
Operating pressure: Unclamp [bar] 120
Clamping dimension tolerance [mm] +/- 0,5
Stroke [mm] 33
Oil volume: Clamp / unclamp [cm3] 200 / 176
max. oil volume flow [l/min] 2 10-12
Limit switch:Number / type (optional)
Supply voltage
Connection type
Designation		 • two inductive proximity switches
• 10-30 V DC
• Plug-in type (M8 x 1)
• Clamping wedge in park position S1
• Clamping wedge in clamping position S2
max. operating temperature [°C] 70
Weight [kg] 31

 

1* Mechanical damage may occur at higher loads
2* If a pump with a greater output is used, the oil flow must be reduced by means of flow control valves or one-way restrictors.

Fixing is achieved with two screws, DIN EN ISO 4762 , strength class 10.9 (not included).