VR 4/20 B
VR 4/20 B – gang designed. Combine heavy duty frame with operational reliability. They are designed for drilling, reaming and thread cutting in single-part or series production. The frame is formed by a cast-iron baseplate with a firm steel pillar.
The drive of gearbox is realised by means of a V-belt (can be tightened). The machine is equipped with 15 speed-steps. The speed changes are realised by two hand-reverse in combination with the V-belt. The four power feeds are shifted by a hand lever, switched on and off by the lever of the automatic coupling. The spindle seated in ball bearings returns into the upper position by a spiral spring.
The headstock is lubricated by a circulation pump installed in the headstock. The angular table enables camping of the workpiece in both planes – the vertical as well as horizontal. The electric equipment is concetrated in a box on the side of the machine. This protects the motor against short-circuit and the whole machine against the spontaneous voltage loss after the start.
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