FresmakArnold Twin Pneumo-Hydraulic Machine Vises

Arnold Twin Pneumo-Hydraulic Machine Vises


Manual With presetting Automatic
Hydraulic   Oleo-Dynamic


Possibility of working with machined soft jaws according to the shape of the work piece.

Download Manual


- Base body
- Pneumo-hydraulic spindle
- Valve assembly
- 1 set of jaw
· 2 x side jaws
· 1 central jaw I (stepped)
· 1 central jaw II (block)
- 4 End clamps
- Service manual

High pressure ARNOLD TWIN vises are capable of clamping two pieces simultaneously.

- Accuracy of 0.01 mm in clamping repeatability.

- Suitable for working in horizontal and vertical machining centers.

- Grinding of all surfaces with a parallelism and perpendicularity of 0.02 mm.

- Possible working positions: supported on the base, on the side or on the head vertically.

- Side windows for quick cleaning of the inside of the vises.

- Clamping force is 25/50 kN, depending on the size.

- Designed to automate processes and robotize them.

- Fitted with a pneumo-hydraulic high pressure single acting intensifier, fed by compressed air at 6 bars.

- Clamping force adjustable by air pressure input (see manual).

- Automatic stroke for closing and opening up to 4 mm.

- The vise operation may be manual (used with a valve unit supplied with the vise), by using a pedal located near the machine or may be controlled by CNC using a solenoid valve.


- The air must be filtered (dry air).

- Should the control pedal be used, the set of valves supplied with the vise must be placed between the compressor and the pedal, not between the pedal and the vise.


- Connection of the compressor to the vise.

- Filter unit, gauge and lubricator of the air inlet.


Two workpieces can be clamped at the same time, with a difference in size of 3 mm between them or just one workpiece.

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