Specifications:
The document describes a numerically driven welding head, type RN, used in resistance welding processes. Key features include a brushless servomotor for consistent welding force, torque monitoring, and a piezo sensor for force checking during the welding cycle. The welding current can be switched off upon reaching a defined position, and the system includes direct driving through a ball screw with an integrated position measuring device.

Procedures:
The welding head features double welding slides guided through rails and ball blocks. Electrode movement is symmetrical and synchronized via rack and pinion feed, with options for asymmetrical movement to center electrodes according to the part being welded. The electrode holder is mounted on a moving, current-conductive block, allowing for easy adjustment outside the machine.

Components and Maintenance:
Components are designed for quick interchangeability without stopping water flow. The head is intended for mounting into assembly machines.

Technical Data:
The document includes a table summarizing the maximum welding force, electrode gap, and electrode section for different head types:

• RNB 20: 20 daN, 20mm gap, 6 x 6 mm electrodes
• RNC 60: 60 daN, 30mm gap, 8 x 8 mm electrodes
• RND 150: 150 daN, 40mm gap, 12 x 12 mm electrodes