Product Details

Stator Range:

●Outside Diameter: 1.5 inch (38mm) to 5 inch (127mm)

●Size of Lamm Stack: 0.75 inch (19mm) to 4 inch (102mm)

●Slot Fil: Up to 60%, for max efficiency and low temp rise

●Inside Diameter: 0.75 inch (19mm) to 3 inch (76mm)

●Size of Magnet Wire: 20 to 38 AWG

●Length/ID ration: up to 6

Industries Served:

●Motor manufacturers

●Pump manufacturers

●Commercial

●Generator manufacturers

●Machine manufacturers

●Aerospace

Contact us if you have any special or unique configuration. We can make almost any work.

The following information describes our basic manufacturing steps and processes to produce stators.

These processes can be customized as necessary to meet Customer requirements.

1). Lamm Stamping

Lamm steel from quality steel

manufacturers such as Nippon

Steel (Japan), Posco Steel (Korea),and/or Bao Steel (China).

Core loss and stacking factor are stable.

Typical grades indlude 50A290 (M19) and 50A600 (M45).

2). Lamm Stacking

All lamms are cleaned,aligned,and TIG welded to stack assemblies.

Custom-made tools and fixtures provide alignment per design specifications.

3). Insulating and Curing

Insulatin s povided multiple forms. Epoxy coatings, including 3M"M Sotchcast" Ppowder Epoxy Coatings 260 or 5555 10G, tpically ranging from 0.012 inches thickness, fluidized bed process are applild with and heat cured.

4). Coil Winding

Magnet wire of the specified type and size is wound on custom precision chucks to produce coils of the correct diameter. When possible, coils are wound in series to eliminate interconnections. In some special applications magnet wire is wound in-place over the insulated lamination stack.

5). Coil Inserting

Woundcols are iserted into the isuated slots of the stack. Specialized techniques are specieinin co sire and thereby atain lower rsistance vee and shorter end turns.

Wenh sepri isuatono is also placed between cll phases wth the slots and/or within the coil end-turns.

6). End-Turn Forming

End-turns are usually laced to form a neat package without loose strands of magnet wire coils. Using a press and a specially made forming fixture, the magnet wire coils are formed (compressed) into their required dimensions.

7). Lead Wire Soldering (Optional)

Lead wires of the specified type, size, and length are connected to the magnet wire coils using high temperature solder. Brazing is also an available method. L ead connections are then laced into the top end-turns (lead end) to hold them securely in place.

8). Lacing

Windings are tightly formed and laced to act as a single thermal mass to reduce hot spots.

Tightly packing the windings also reduces wire vibration that cause acoustical noise and insulation failure.

9). Varnishing and Baking

Varnish operation utilizes customer specified materials and processes.

Facilities, such as Vacuum Pressure Impregnation (VPI), submersion, trickle down,and heat curing techniques, are. available. Varnishes on the stator ID can be cleaned. As an addition or alternative to varnishing, stator assemblies can be encapsulated with Customer specified potting materials.

10). CNC Machining

Precise machining of stack surfaces is available. Stacks can be gound (outside diameter), honed (inside diameter), turned, and milled to meet to meet the needed dimensions and features. Tolerances of土0.001 inches (or closer if required) can be maintained.

11). Physical Inspection

●Inspection on stack coating thickness using a coating thickness gauge.

●Verification on stack coating adhesion using an impact test apparatus.

●Dimensional check on a finished stator using a caliper, a micro meter, and an indicator.

●Visual inspection using a magnifier, or a projector when it is necessary.

12). Electrical Testing/Label Printing

Every unit undergoes a Quality Assurance review. High potential voltage,surg resistance, Back EMF and other electrical tests are performed as necessary to assore conformance to Customer specifications. Test results are electronically recorded and storedfor future analysis.

If requested, test results may accompany each product shipments.