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Manufacturing technologies for commutators

V-Ring technology

The V-Ring or dovetail technology is one of the oldest and most common manufacturing technologies for commutators. This technology has been described in electrical engineering manuals both simply and in great detail. But getting the right result is quite another matter. Not many other companies have managed as PLD Collettori has, to bring continuity and development to this method, combining dated concepts with the most modern manufacturing techniques. The skills of our young technicians, their precision and versatile approach combined with experience lead to excellent results.
1. STANDARD
2. WITH FLAG RISERS
3. JOINED COPPER SEGMENTS
Manufacturing technologies for commutators

V-Ring technology

The V-Ring (dovetail) technology is one of the oldest and most common manufacturing technologies for commutators. This technology has been described in electrical engineering manuals both simply and in great detail. But getting the right result is quite another matter. Not many other companies have managed as PLD Collettori has, to bring continuity and development to this method, combining dated concepts with the most modern manufacturing techniques. The skills of our young technicians, their precision and versatile approach combined with experience lead to excellent results.
1. STANDARD
2. COMMUTATORS WITH FLAGS
3. COMMUTATORS WITH COPPER BLOCK INSERTED
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V-Ring Commutators

1. Standard

This construction is the most common type. The trapezoidal section segments are procured on the market, or drawn directly in the company starting from raw copper, to get the desired section and hardness. The commutator copper segments are monolithic and the riser is obtained by CNC machining, or turning, to achieve the requested dimensions.

V-Ring Commutators

1. Standard

This construction is the most common type. The trapezoidal section segments are procured on the market, or drawn directly in the company starting from raw copper, to get the desired section and hardness. The commutator copper segments are monolithic and the riser is obtained by CNC machining, or turning, to achieve the requested dimensions.

V-Ring Commutators

2. With flags risers

This version is obtained thanks to the process of silver brazing of copper flags of various types and geometries, depending on the customer's request, with the original monolithic copper segments, in order to achieve the required crown diameter.

This technology is usually helpful when the gap between brush track and riser diameters is significant, which would result to the impossibility of a full segment realization or to expensive production costs.

V-Ring Commutators

2. With flags risers

This version is obtained thanks to the process of silver brazing of copper flags of various types and geometries, depending on the customer's request, with the original monolithic copper segments, in order to achieve the required crown diameter.

This technology is usually helpful when the gap between brush track and riser diameters is significant, which would result to the impossibility of a full segment realization or to expensive production costs.

V-Ring Commutators

3. Joined copper segments

The manufacturing with joined copper segments is a hybrid that has the advantages of the flag risers version, when the gap between the brush track and riser diameters is significant, but it does not have flexible flags, as full copper extension segments are used, joined to the original copper segments by means of silver brazing.

This solution helps when the requested geometry is not reachable with the standard full copper segment version, because of manufacturing issues, or to contain the costs. The commutator copper body is then turned and manufactured a standard version one.

V-Ring Commutators

3. Joined copper segments

The manufacturing with joined copper segments is a hybrid that has the advantages of the flag risers version, when the gap between the brush track and riser diameters is significant, but it does not have flexible flags, as full copper extension segments are used, joined to the original copper segments by means of silver brazing.

This solution helps when the requested geometry is not reachable with the standard full copper segment version, because of manufacturing issues, or to contain the costs. The commutator copper body is then turned and manufactured a standard version one.

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