Hinge clamps

Clamping elements with hydraulic operation of a clamping lever

double acting
single acting

Series  (9)

Items  (340)

  1. cartridge type – max. clamping force 1.3 kN – max. operating pressure 200 bar – as per data sheet B1.8271
  2. 2,5 kN, with cover – with short clamping lever – with pneumatic clamping monitoring – 250 bar, as per data sheet B1.827
  3. 2,5 kN, with cover – with short clamping lever – with pneumatic unclamping monitoring – 250 bar, as per data sheet B1.827
  4. 2,5 kN, with cover – with short clamping lever – without position monitoring – 250 bar, as per data sheet B1.827
  5. 2,5 kN, without cover – with short clamping lever – with pneumatic clamping monitoring – 250 bar, as per data sheet B1.827
  6. 2,5 kN, without cover – with short clamping lever – with pneumatic unclamping monitoring – 250 bar, as per data sheet B1.827
  7. 2,5 kN, without cover – with short clamping lever – without position monitoring – 250 bar, as per data sheet B1.827
  8. 2,5 kN, with cover – with long clamping lever (blank) – with pneumatic clamping monitoring – 250 bar, as per data sheet B1.827
  9. 2,5 kN, with cover – with long clamping lever (blank) – with pneumatic unclamping monitoring – 250 bar, as per data sheet B1.827
  10. 2,5 kN, with cover – with long clamping lever (blank) – without position monitoring – 250 bar, as per data sheet B1.827
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Description

Hinge clamps
B1.8251: max. operating pressure 250 bar
B1.8268: max. operating pressure 70 bar, with throttle valve

The hinge clamp is a low-cost hydraulic clamping element with many installation and connecting possibilities. If the clamping lever is completely retracted, unimpeded loading and unloading of the fixture can be effected.
A clamping recess in the workpiece a little bit wider than the clamping lever is sufficient as clamping surface. The special kinematics allow clamping nearly without side loads of workpieces which are very sensitive against deformation.
The line B1.8268 is designed for the direct connection to the machine hydraulics with a maximum operating pressure of 70 bar.

When pressurising the element, the piston moves upwards and swivels the clamping lever over the hinges forwards and at the same time downwards onto the workpiece. The piston force is deviated by 180° and is available as clamping force with virtually no loss of efficiency.
If the level of the clamping surface is exactly in the centre of the clamping range, no side loads are introduced into the workpiece.

The bodies are recessible in the fixture up to the flange. Alternatively intermediate plates are available for height adjustment.
All versions are optionally available with extended piston rod and with inductive or pneumatic position monitoring.

Hinge clamp B1.8251

Compact clamps
B1.827: Cartridge type
B1.828: Manifold-mounting type

Due to the minimum space required the compact clamp is especially suitable for clamping fixtures with little space for the installation of hydraulic clamping elements.
A clamping recess in the workpiece a little bit wider than the clamping lever is sufficient as clamping surface.
The hydraulic compact clamp is a double-acting pull-type cylinder where a part of the linear stroke is used to swing the clamping lever onto the workpiece. In unclamping position the clamping lever is swung up so that the workpiece can be unloaded without problems.

Compact clamps can be optionally equipped with different pneumatic position monitorings:
1. Clamping monitoring
2. Unclamping monitoring
3. Clamping and unclamping monitoring


Beside the short clamping lever, also a long clamping lever is available, that is provided for reworking to the desired length and contour.

Compact clamp B1.827

Application videos:

Mini compact clamp B 1.8271

Mini compact clamps are designed for application in hydraulic clamping fixtures where oil supply is effected through drilled channels in the fixture body.
Thanks to the small housing diameter of only 22 mm, the mini compact clamp can be installed in places where up to now there was insufficient space for a hydraulic clamping element. In multiple clamping fixtures, the minimum distance between cylinders is 28 mm. A clamping recess in the workpiece a little bit wider than the clamping lever is sufficient.
The hydraulic mini compact clamp is a double-acting pull-type cylinder where a part of the linear stroke is used to swing the clamping lever onto the workpiece. In order to minimise the dimensions, the usual flange for screw fixing is omitted. Instead 2 clamp pieces engage in a radial slot in the cartridge-type hole. When mounting, these clamp pieces are radially expanded by set screws accessible from above. Thus, the clamping force is compensated by form fit and without clearance.
The mini compact clamp can be turned by 360° in the cartridge-type hole.

Mini compact clamp B 1.8271

Application videos:

Mini hinge clamp B1.8252 and B1.8262

The mini hinge clamp is a low-cost hydraulic clamping element for thin-walled workpieces and reduced space. The special kinematics allow clamping nearly without side loads of workpieces which are very sensitive against deformation.
A clamping recess in the workpiece a little bit wider than the clamping lever is sufficient as clamping surface.

When pressurising the element, the piston moves upwards and swivels the clamping lever over the hinges forwards and at the same time downwards onto the workpiece. The piston force is deviated by 180° and is available as clamping force with virtually no loss of efficiency.
During unclamping the clamping lever with swivel contact bolt will be swivelled behind the front edge of the flange, thereby unimpeded loading and unloading of the workpiece is possible. Workpieces which are very sensitive against deformation are clamped nearly without any side loads, if the clamping surface is exactly in the centre of the clamping range.
The optionally available long clamping lever is provided for customer-specific adaptations.
The line B 1.8262 is designed for the direct connection to the machine hydraulics with a maximum operating pressure of 70 bar.

Mini hinge clamp B1.8252

Hinge Clamps with Flat Clamping Lever B1.829

The hinge clamp is a single-acting hydraulic cylinder with spring return. When pressurising the hinge clamp, the piston moves against the clamping lever and swivels the clamping lever to the clamping position. The piston force is deviated by 180° onto the workpiece.
In case of pressure relief, the piston returns by means of the incorporated pressure spring to the off-position. The clamping lever is swivelled back by means of a leg spring. Optionally, the position of the clamping lever can be controlled pneumatically.
The lower part of the housing is inserted into the location hole of the fixture body. The hydraulic oil supply is made through a drilled channel that can end in the location hole from different directions. 

Hinge Clamps with Flat Clamping Lever B1.829

PDF Data sheets

PDF

Hinge clamps with metallic wiper edge and optional position monitoring – double acting – max. operating pressure 250 bar

Catalogue sheet B1.8251
PDF

Mini hinge clamps with metallic wiper edge – double acting – max. operating pressure 250 bar

Catalogue sheet B1.8252
PDF

Mini hinge clamps 70 bar with metallic wiper edge – double acting – max. operating pressure 70 bar

Catalogue sheet B1.8262
PDF

Hinge clamps 70 bar with throttle valve – metallic wiper edge and optional position monitoring – double acting – max. operating pressure 70 bar

Catalogue sheet B1.8268
PDF

Compact clamps cartridge type, with optional position monitoring – double acting – max. operating pressure 250 bar

Catalogue sheet B1.827
PDF

Mini compact clamps cartridge-type – clamping force 1.3 kN – double acting – max. operating pressure 200 bar

Catalogue sheet B1.8271
PDF

Compact clamps manifold-mounting type, – pneumatic position monitoring optional – double acting – max. operating pressure 250 bar

Catalogue sheet B1.828
PDF

Hinge Clamps with Flat Clamping Lever with pneumatic position monitoring – single and double acting – max. operating pressure 250 bar

Catalogue sheet B1.829

Application examples

Application videos:

Compact clamp B1.827

Clamping of a cast part

Compact clamp B1.827

Compact clamp B 1.828

Clamping of a cast part with special clamping lever

Compact clamp B 1.828

Mini compact clamp B 1.8271

Clamping of a cast part

Mini compact clamp B 1.8271

Application videos:

Mini hinge clamp B1.8252

Double clamping fixture

Mini hinge clamp B1.8252