Filter
Product range

Hinge clamps

Clamping elements with hydraulic operation of a clamping lever

double acting

single acting

max. clamping force: 1,3 .. 21,5 kN
clamping stroke/clamping range: 2.0 .. 9.0 mm
max. operating pressure: 70 to 250 bar

Series Data sheet Technical data
B1.825
B1.825
show
B1.825 Hinge clamps

 

double acting

max. operating pressure 200 bar

max. clamping force: 18 kN
usable clamping stroke: 6 mm

B1.8251
B1.8251
show
B1.8251 Hinge clamps

 

with metallic wiper edge and optional position monitoring

double acting

max. operating pressure 250 bar

max. clamping force: 4 .. 21.5 kN
usable clamping stroke: 4.0 .. 9.0 mm
adm. flow rate 15.7 .. 55 cm³/s

B1.8252
B1.8252
show
B1.8252 Mini hinge clamps

 

with metallic wiper edge

double acting

max. operating pressure 250 bar

max. clamping force: 2.2 kN
usable clamping stroke: 3 mm
adm. flow rate 8 .. 15 cm³/s

B1.8262
B1.8262
show
B1.8262 Mini hinge clamps 70 bar

 

with metallic wiper edge

double acting

max. operating pressure 70 bar

max. clamping force: 2.2 kN
usable clamping stroke: 3 mm
adm. flow rate 45 ..50 cm³/s

B1.8268
B1.8268
show
B1.8268 Hinge clamps 70 bar

 

with throttle valve

metallic wiper edge and optional position monitoring

double acting

max. operating pressure 70 bar

max. clamping force: 2,6 .. 12,1 kN 1.3 ..
max. clamping force: 2.1 .. 4.1 mm
adm. flow rate: 16 ..150 cm³/s

B1.827
B1.827
show
B1.827 Compact clamps

 

cartridge type, with optional position monitoring

double acting

max. operating pressure 250 bar

max. clamping force: 2.5 .. 10.5 kN
usable clamping stroke: 4.5 .. 8.5 mm
adm. flow rate 4 .. 25 cm³/s

B1.8271
B1.8271
show
B1.8271 Mini compact clamps

 

cartridge-type

clamping force 1.3 kN

double acting

max. operating pressure 200 bar

clamping force at 200 bar: 1.3 kN
usable clamping stroke: 5 mm
adm. flow rate 5 cm³/s
minimum pressure 20 bar

B1.828
B1.828
show
B1.828 Compact clamps

 

manifold-mounting type,

pneumatic position monitoring optional

double acting

max. operating pressure 250 bar

max. clamping force: 2.5 .. 10.5 kN
usable clamping stroke: 4.5 .. 8.5 mm
adm. flow rate 4 .. 25 cm³/s

B1.829
B1.829
show
B1.829 Hinge Clamps with Flat Clamping Lever

 

with pneumatic position monitoring

single and double acting

max. operating pressure 250 bar

max. clamping force: 2,5 .. 12 kN
piston-Ø: 16 .. 36 mm
clamping height: 23 +1,5/–1,2 .. 41 +2,8/–2,3 mm
clamping range: ± 1,5 .. 3 mm

show
figure 1: Hinge clamp B1.8251
















 
show
figure 2: Compact clamp B1.827


































 
show
figure 3: Mini compact clamp B 1.8271






























 
show
figure 4: Mini hinge clamp B1.8252












 
show
figure 5: Hinge Clamps with Flat Clamping Lever B1.829
 

Hinge clamps (figure1)
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.

Compact clamps (figure 2)
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.

Application videos:

Mini compact clamp B 1.8271 (figure 3)
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.

Application videos:

Mini hinge clamp B1.8252 and B1.8262 (figure 4)
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.

Hinge Clamps with Flat Clamping Lever B1.829 (figure 5)
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.

 

Seal kits
for hydraulic elements

data sheet S0.001

show
figure 1: Pressure oil connector
 
show
figure 2: Intermediate plates
 
show
figure 3: Inductive or pneumatic position monitoring
 
show
figure 4: Mounting body for compact clamps B1.827
 
show
figure 5: Mounting body for mini compact clamps B 1.8271
 

Pressure oil connector (figure 1)
for hinge clamps B 1.8251
data sheet B1.8251

 

 

 

 

Intermediate plates (figure 2)
for hinge clamp B 1.8251
data sheet B1.8251

 

 

Inductive or pneumatic position monitoring (figure 3)
for hinge clamps B 1.8251 and B 1.8268
data sheet B1.8251
data sheet B1.8268

 

 

 

 

 

 

 

Mounting body for version with pipe thread and cover  (figure 4-5)
for compact clamps B1.827 (figure 4)
data sheet B1.827

 

 

 

 

for mini compact clamps B1.8271 (figure 5)
data sheet B1.8271

 

 

 

 

Swivel contact bolt M 10 with ball flat topped
for hinge clamp B1.825
data sheet G3.800

 
show
figure 1: Compact clamp B1.827















 
show
figure 2: Compact clamp B.1828
 
show
figure 3: Mini compact clamp B 1.8271










 
show
figure 4: Mini hinge clamp B1.8252
 

Application videos:

Compact clamp B1.827 (figure 1)
Clamping of a cast part

Compact clamp B 1.828 (figure 2)
Clamping of a cast part with special clamping lever

Mini compact clamp B 1.8271 (figure 3)
Clamping of a cast part

Application videos:

Mini hinge clamp B1.8252 (figure 4)
Double clamping fixture