Axial Airgap Motors from 100 W to 2.2 kW
The axial airgap motor has been developed by ATB Special Products based in the midlands. The motor concept is different from a conventional totally enclosed motor in that it has a very short length, but is larger in diameter. It is an ideal solution for equipment manufacturers requiring compact motors in large batches. The manufacture of the motor required a totally different approach to different methods.
Essentially the airgap motor consists of a wound stator and rotor unit which is developed individually to the customers' requirements. These units are then inmcorporated into the product as an integrated motor.
Alternatively a customised frame can be designed and manufactured, again incorporating the customers' specific mechanical requirements.
Technical Characteristics
Three ‘frames’ are currently available, AAG115, AAG145 and AAG181 (based on the overall diameter of the stator pack).
Outputs from about 100W up to 2.2kW are achieved from this family of three phase motor sizes.
The exact performance which can be achieved from each is dependent upon application considerations such as the degree of cooling provided and vary for each integrated drive solution developed. As a guide, the following tables indicates the size of active components required for different outputs given a level of cooling equivalent to the TEFV (totally enclosed fan ventilated) arrangement present on most conventional industrial motors.
Information provided here relates to three phase, single speed induction motor designs. This construction is equally suited to single phase, multi-speed or induction generator designs, details of which can be provided upon request.
The optimisation of the motor design and the exploitation of opportunities for integration, such as shared bearing arrangements and customised enclosures, benefits from involvement early in the equipment product development cycle and joint development programmes.
Dimensions
Supply - 380-415V, 3 Phase, 50Hz. Cooling - TEFV arrangment.
| Output kW | 3000/min 2 Pole | 1500/min 4 Pole | 1000/min 6 Pole | 750/min 8 Pole |
|---|---|---|---|---|
| 0.11 | AA115 | AA115 | AA115 | AA115 |
| 0.18 | AA115 | AA115 | AA115 | AA115 |
| 0.25 | AA115 | AA115 | AA115 | AA145 |
| 0.37 | AA115 | AA115 | AA145 | AA145 |
| 0.55 | AA115 | AA145 | AA145 | AA145 |
| 0.75 | AA145 | AA145 | AA145 | AA181 |
| 1.1 | AA145 | AA145 | AA181 | - |
| 1.5 | AA181 | AA181 | - | - |
| 2.2 | AA181 | - | - | - |
All dimensions in mm, Overall axial length occupied by active components = F+J
| Type | A | B | C | D | E | F | G | H | J | K | L | M | N | P | Q | U |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AA115 | 160 | 115 | 80 | 60 | 20 | 50 | M6 | 45 | 30 | 128 | 30 | 18 | 10 | 20 | 8 | 400 |
| AA145 | 194 | 145 | 105 | 70 | 25 | 50 | M6 | 45 | 40 | 152 | 40 | 18 | 10 | 25 | 10 | 400 |
| AA181 | 233 | 180 | 130 | 80 | 30 | 50 | M6 | 45 | 40 | 192 | 50 | 18 | 10 | 25 | 10 | 400 |
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