Hinge clamps
Clamping elements with hydraulic operation of a clamping lever
double acting
single acting
Series (10)
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cartridge type – max. clamping force 1.3 kN – max. operating pressure 200 bar – as per data sheet B1.8271 -
2,5 kN, with cover – with short clamping lever – with pneumatic clamping monitoring – 250 bar, as per data sheet B1.827 -
2,5 kN, with cover – with short clamping lever – with pneumatic unclamping monitoring – 250 bar, as per data sheet B1.827
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2,5 kN, with cover – with short clamping lever – without position monitoring – 250 bar, as per data sheet B1.827
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2,5 kN, without cover – with short clamping lever – with pneumatic clamping monitoring – 250 bar, as per data sheet B1.827
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2,5 kN, without cover – with short clamping lever – with pneumatic unclamping monitoring – 250 bar, as per data sheet B1.827
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2,5 kN, without cover – with short clamping lever – without position monitoring – 250 bar, as per data sheet B1.827
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2,5 kN, with cover – with long clamping lever (blank) – with pneumatic clamping monitoring – 250 bar, as per data sheet B1.827
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2,5 kN, with cover – with long clamping lever (blank) – with pneumatic unclamping monitoring – 250 bar, as per data sheet B1.827
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2,5 kN, with cover – with long clamping lever (blank) – without position monitoring – 250 bar, as per data sheet B1.827
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
Flat Lever Clamps B1.829 and B1.8291
Application
The flat lever clamp is a compact hydraulic clamping element for fixtures with oil supply through drilled channels.
Due to the minimum space required, the flat lever clamp is especially suitable for fixtures with little space for the installation of hydraulic clamping elements.
The flat clamping lever allows machining of surfaces that are only a few millimetres above the clamping point.
Double-acting versions are advantageous for time and cycle-dependent installations, since the return stroke is effected in a precisely defined time and the pneumatic position monitoring of the clamping lever is possible.
Advanced Link System
The newly developed lever kinematics enable trouble-free, process-safe operation.
Description
When pressurising the flat lever clamp, a piston moves upwards against the rear edge of the clamping lever and swivels the clamping lever to the clamping position. The piston force is deviated by 180 ° onto the workpiece.
The clamping force depends on the operating pressure and the length of the clamping lever.
When unclamping the flat lever clamp, the clamping lever is swivelled back to the off-position by means of a hook-shaped carrier on the piston.
Unclamping is made either hydraulically or when using a single-acting element with spring force.
The pneumatic position monitoring allows the monitoring of both final positions of the clamping lever.
Flat Lever Clamp B1.829
PDF Data sheets
Hinge clamps double acting – max. operating pressure 200 bar
Catalogue sheet B1.825Hinge clamps with metallic wiper edge and optional position monitoring – double acting – max. operating pressure 250 bar
Catalogue sheet B1.8251Mini hinge clamps with metallic wiper edge – double acting – max. operating pressure 250 bar
Catalogue sheet B1.8252Mini hinge clamps 70 bar with metallic wiper edge – double acting – max. operating pressure 70 bar
Catalogue sheet B1.8262Hinge clamps 70 bar with throttle valve – metallic wiper edge and optional position monitoring – double acting – max. operating pressure 70 bar
Catalogue sheet B1.8268Compact clamps cartridge type, with optional position monitoring – double acting – max. operating pressure 250 bar
Catalogue sheet B1.827Mini compact clamps cartridge-type – clamping force 1.3 kN – double acting – max. operating pressure 200 bar
Catalogue sheet B1.8271Compact clamps manifold-mounting type, – pneumatic position monitoring optional – double acting – max. operating pressure 250 bar
Catalogue sheet B1.828Flat Lever Clamps Advanced Link System, pneumatic position monitoring - optional single and double acting, max. operating pressure 250 bar
Catalogue sheet B1.829Flat Lever Clamps Advanced Link System, pneumatic position monitoring - built-in and block-type, double acting, max. operating pressure 120 bar
Catalogue sheet B1.8291General characteristics of Hydraulic Equipment
Catalogue sheet A 0.100Application 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
