Workpiece Clamping Elements

ROEMHELD B1.730 Clamping and Supporting Element: self-locking, double acting

OBSOLETE ITEM - CONTACT HYQUIP

• Maximum clamping force ranges from 5 to 18 kN
• Maximum operating pressure 300 bar
• Stroke ranges from 5 to 12 mm
• Diameter of the clamping bolt: 12 - 22 mm

The clamping and supporting element is a hydraulic clamping cylinder with mechanical locking according to the wedge principle. Forces which are directed against the clamping force, e.g. machining forces will be supported with a negligible elasticity of the wedge-shaped piston. The counter force must not exceed the maximum clamping force.  

ROEMHELD B1.4842 Bore Clamps: Flange type, without centring function, double acting, for bore diameter 7.8 - 17.7 mm, max.operating pressure 250 bar

OBSOLETE ITEM - CONTACT HYQUIP

• Double acting
• Operating pressure 250 bar maximum
• Bore hole diameter ranges from 7.8 to 17.7 mm
• Maximum low-clamping force ranges from 5.1 to 9.8 kN
• Expansion force , radial: 9 - 14 kN

This bore clamp is a double-acting pull-type cylinder. An exchangeable clamping bushing is fixed to the piston. The four segments of the clamping bushing are radially expanded with spring force by a pyramid- shaped clamping bolt. Thus the expansion force is always the same and independent of the hydraulic clamping pressure. 

ROEMHELD B1.8268 Hinge Clamps 70 bar: with throttle valve, metallic wiper edge and optional position monitoring double acting

• Maximum operating pressure 70 bar
• Maximum clamping force: 2,6 - 12,1 kN - 1.3
• Maximum clamping force: 2.1 - 4.1 mm
• Adm. flow rate: 16 - 150 cm³/s

The hinge clamp is a double acting hydraulic cylinder with integrated clamping lever. 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, depending on the lever length, the force is available as clamping force.

ROEMHELD B1.950 Single Acting Threaded Body Work Supports

• Maximum operating pressure 500 bar
• External thread: M45 - M90
• Maximum load force: 16.8 - 102 kN
• Plunger diameter: 20 - 50 mm
• Plunger stroke: 12 - 20 mm
• Maximum flow rate: 25 - 100 cm³/s
• Elastic deformation: 1.8 - 4.5 µm/kN

Hydraulic work supports are used to provide a self-adjusting rest for the workpiece during the machining operations. They compensate the workpiece surface irregularities, also deflection and vibration under machining loads.

ROEMHELD B1.852 Swing Clamps with Sturdy Swing Mechanism: Cartridge type, position monitoring optional, double acting

• Maximum operating pressure 350 bar
• Maximum clamping force: 6 - 22 kN
• Rod diameter: 16 - 32 mm
• Piston diameter: 23 - 45 mm
• Clamping stroke: 12 - 15 mm
• Maximum flow rate: 10 - 57 cm³/s

The hydraulic swing clamp is a pull-type cylinder where a part of the total stroke is used to swing the piston. The favourable area ratio (piston/piston rod) allows high clamping forces already at relatively low oil pressures. For high flow rates the swing speed is limited by an orifice in the clamping port. Thus, uniform clamping of several swing clamps is also possible when oil supply is effected through a common bore.

ROEMHELD 1.7301 Clamping and Supporting Element: cartridge-type version, self-locking, double acting

• Max. operating pressure 300 bar

ROEMHELD B1.4843 Bore Clamps: Cartridge type, without centring function, double acting, for bore diameter 7.8 - 17.7 mm, max.operating pressure 250 bar

• Double acting
• Operating pressure 250 bar maximum
• Bore hole diameter ranges from 7.8 to 17.7 mm
• Maximum low-clamping force 5.1 - 9.8 kN
• Expansion force , radial: 9 - 14 kN

This bore clamp is a double-acting pull-type cylinder. An exchangeable clamping bushing is fixed to the piston. The four segments of the clamping bushing are radially expanded with spring force by a pyramid-shaped clamping bolt. Thus the expansion force is always the same and independent of the hydraulic clamping pressure.

ROEMHELD B1.485 Bore Clamp: Block-type eccentric, for bore diameter 6.6 to 13.8 mm, double acting, max. operating pressure 250 bar

• Double acting
• Operating pressure 250 bar maximum
• Clamping ranges from 6.6 to 13.8 mm
• Maximum pull force 3.8 - 6.3 kN
• Axial clamping force 210 - 720 N

In the body of the bore clamp a double-acting hydraulic cylinder is mounted. By screwing in the clamping screw the piston actuates via a dowel pin a drive pin that is eccentrically arranged at the edge of the housing. The clamping ring is centred on a taper sleeve and hold by the head of the clamping screw. The clamping screw is secured by means of a thread coating against loosening. Penetration of liquids and swarf is avoided by the connection of positive air pressure protection.

ROEMHELD B1.942 Threaded Body Work Support: M 40 x 1.5, with metallic wiper edge, single acting

• Maximum operating pressure 500 bar
• External thread: M40
• Maximum load force: 15 - 20 kN
• Plunger diameter: 20 mm
• Plunger stroke: 10 - 15 mm
• Maximum flow rate: 25 cm³/s
• Elastic deformation: 2.7 µm/kN

ROEMHELD B1.853 Swing Clamps with Sturdy Swing Mechanism: Top flange type, with optional position monitoring, double acting

• Maximum operating pressure 350 bar
• Maximum clamping force: 6 - 30 kN
• Rod diameter: 16 - 40 mm
• Piston diameter: 23 - 55 mm
• Maximum flow rate: 10 - 87 cm³/s

The hydraulic swing clamp is a pull-type cylinder where a part of the total stroke is used to swing the piston. The favourable area ratio (piston/piston rod) allows high clamping forces already at relatively low oil pressures. Due to the sturdy swing mechanism the angle position of the clamping arm remains the same after a slight collision with the workpiece during loading or unloading.

ROEMHELD B1.827 Compact Clamps: Cartridge type, pneumatic position monitoring optional, double acting

• Maximum 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

The hydraulic compact clamp is a doubleacting pull-type cylinder where a part of the linear stroke is used to swing the clamping lever onto the workpiece. The version with cover is inserted in open bore holes and enables the smallest possible building height. The version without cover requires a closed pocket hole.

ROEMHELD B1.372 Low-Block Clamping Cylinder: single acting with spring return

OBSOLETE ITEM - CONTACT HYQUIP

• Operating pressure 500 bar maximum
• 3 sizes with maximum clamping forces ranging from 8.5 to 40 kN
• Piston diameter ranging from 16 to 36 mm
• Piston stroke 8 and 10 mm

The preferred application of low-block clamping cylinders are clamping situations where work holding from above is not possible or necessary. The low-clamping effect is caused by the downward motion of the clamping point while the high vertical force guarantees that the workpieces are safely held down.