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Electromechanical NC systems accommodate various force-displacement-monitored press-fitting, joining tasks

Kistler's NCFH electromechanical NC joining modules, such as Type 2151B, are compact systems designed for a variety of force-displacement-monitored press-fitting and joining tasks.

The systems are suitable for mounting under a bench. Despite an overall height of only 18.7 in. or 31.3 in., the modules offer strokes of 7.87 in. or 15.75 in., which allows them to reach deep end points, such as bearings in half-shell gearboxes. A speed of up to 11.8 IPS offers a quick return stroke and short machine cycle, even for a long idle stroke, according to the manufacturer. They feature standard availability of both tension and compression forces. The force signal employed by the force-displacement monitoring system is used to control movement in highly specialized operations.

The force control system increases the joining modules' application range. Spring elements, for example, can be loaded to specific values, or their settlement can be controlled continuously. Two central lubrication connections for guide and bearing help ensure low-maintenance operation, and the threaded spindle drive is permanently lubricated.

Because the active buckling compensation system eliminates the effect of bending of the assembly, the positional accuracy is no longer influenced by the force. The standard holding brake allows the use of heavy tools and prevents the ram from dropping when the module is switched off.