UCM - Automatic Undercutting Machines

Whitelegg offer a wide range of dedicated and combination machines for the processing of DC armatures. Undercutting machines can be fitted with turning and TIG welding for example to provide a multiple purpose machine. Only the latest technologies are used for fast and very accurate processing.

Fully automatic undercutting process.

Oscillating spindle to follow the bar skew (for commutator overhaul)

Special program to follow the bar skew (for new commutators)

Bar indexing by high precision laser unit+ camera and 15”LCD screen for commutator magnifying

CNC controlled cutting axis + transversal axis for depth control and commutator diam. adjustment

Armature rotation by stepper motor with adjustable speed and drive chain

Automatic cutter lift during return

Automation by PLC and LCD display with memory for 99 armature programs

Automatic diagnosis of faults for easy troubleshooting

Bar deburring, by special “V” shaped cutters type T-21

Dust exhauster type T-20

Bearing supports for small armatures up to 150 kg .

Fiber optic equipment for bar index on front side of commutator. (Optional)

Brushing unit for rounding bar edges (Optional)

Armature diameter100-600 mm150-1000 mm150-1500 mm
Commutator diameter80-500 mm100-900 mm150-1300 mm
Undercutting length0 -300 mm0-400 mm0-500 mm
Max height of comm. riser
Max distance between rollers500-15400 mm500-1800 mm500-3000mm
Max. Armature weight2000 kg5000 kg6000 kg
Cutter rotation0-5000 rpm0-5000 rpm0-5000 rpm
Indexing Speed0-2 mm/sec0-2 mm/sec0-2 mm/sec

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