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Custom Rotors & Armatures



Windtech Inc. manufactures complete rotors and armatures to Customer specifications. Contact us with your design and specifications and we’ll work the rest. We are accustomed to working with tight tolerances and meeting all necessary compliances.

Windtech can design and fabricate the complete tooling required for bonding, machining, end lamination placement, forming, varnishing, testing and all other required steps. We can also work with Customer-supplied tooling. Our engineers can provide suggestions that will simplify the manufacturing process and thus lower the production cost.





Specifications  · Materials

Specifications

Winding Types

Lap Winding
Wave Winding

Special

Size Range

From small 0.5” OD stacks to larger 24” OD stacks

Value-Added Services

ID Honing
OD Grinding

OD Turning

Special Notches

Varnishing

Air Dry Varnish
Dip and Bake

Trickle Varnish

VPI (Vacuum Pressure Impregnation)

Fluidizing

Electrostatic powder coating can be performed
Powder coated in a fluidizing bed

Lacing

Single or Double Pass Lacing

Testing/QA

All units inspected (100% Inspection coverage, no sampling)
Dimensional inspection

Electrical inspection (Resistance, Inductance, Hi-pot, Surge, unbalances, Rotation)

Visual Inspection

Compliances

AS9102 based FAIR
J-STD-001 Certified


Materials

Stack/Core Lamination

ASTM Type C-5 coated or uncoated
Fully processed for stress-relief anneal

Grain Oriented Silicon Steels

Non Oriented Silicon Steels (.014”, .018”, .025”)

Special Material Alloys (Nickel-Iron; Cobalt-Iron; others)

Thin Gauge Silicon Steels (.005”, .007”, .011”)

Stack/Core Bonding

3M™ Scotchcast™ Electrical Resin 265
Magna-Tac E645® Epoxy Adhesive

Others

Stack/Core Insulation

DMD Material Dacron®-Mylar®-Dacron®
Dupont™ Mylar® Type MO

Fluidizing (3M™ Scotchcast® #260, #5230N, #5555)

Kapton® HN

NK Material - Nomex®-Kapton®

NKN Material - Nomex®-Kapton® Nomex®

Nomex® Type 410, 414, etc.

Magnet Wire

Round or square Copper magnet wire
Heavy Build, Class 200°C

Heavy Build, Class 240°C

PEEK insulated, Class 260ºC

Inverter Duty Grade, Class H 200°C

Essex: Polybondex® G Bond M PBX #1, UL-180°C

Inverter Duty Grade, Class H 200°C, Polybondex®

Per NEMA Standard MW1000 & Federal Specification JW1177

Essex, Rea, MWS, others

Tab/Wedge

Epoxy Laminates G7, G10, G11
Nomex® Type 410

Nomex® Type 414

Others

Lacing Cord

AA52081 (Type II), Polyester, -100°F (-73°C) to 350°F (177°C)
AA52082 (Type III), Teflon, 100°F (-73°C) to 450°F (232°C)

AA52083 (Type IV), Teflon Coated Fiberglass, -100°F (-73°C) to 800°F (427°C)

AA52084 (Type V), Nomex, -100°F (-73°C) to 500°F (260°C)

Kevlar

Per AA52080 (Type I), Nylon, -67°F (-55°C) to 325°F (162°C)

Per AA52080-84 (formerly Mil-T-43435)

Lead Wire

Others
Per MIL-W-16878

Per MIL-W-22759

Per UL 1180, UL1423, etc.

Solder

In Accordance With IPC J-STD-001 & 006
Others

Sb05Sn95, Lead Free Binary Alloy

Sn01Pb97.5Ag1.5

Sn05Pb93.7Ag1.5

Sn10Pb88Ag02

Sn60Pb40

Sn63Pb37

Connection Insulation

Tape: Kapton, Teflon, Glass Cloth, etc.
Sleeving: Polyolefin, Mylar, Kynar, Silicone Rubber, FEP, Teflon, PEEK, etc.

Sleeving Per Mil-I-23053, Mil-I-22129, Mil-I-3190

Varnish

Altana PDG varnishes
Class Protection from 135°C to 220°C

Cotronics coatings

Dolph's varnishes

Others


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