What types of electric motor applications does The Gund Company provide insulation solutions for?

The Gund Company provides solutions for power utilization equipment and motor applications, including electric motors, and offers a variety of insulation component solutions for rotors and stators.

What are the main insulation components for electric motor rotors and stators?

For rotors: topsticks, wedges, pole collars, slot liners, turn-to-turn insulation, pole blocking, and lead clamps. For stators: topsticks, wedges, filler strips, phase separators, slot liners, tapes, tie cord, lead wire insulation, terminal boards, lead clamps, end winding support rings, end winding support blocks, felt, and end baffles.

What insulation materials and parts are used in DC motors and armatures?

DC stator insulation includes pole collars, turn-to-turn insulation, lead clamps, and blocking. DC armature insulation includes topsticks, wedges, slot filler, slot liners, felts, commutator mica segments, lead wire insulation, and banding tape.

What commutator insulation materials and components are available?

Commutator insulation components include Mica HD, mica V-rings, and binding tape.

What other motor insulation components does The Gund Company offer?

Other motor insulation components include elastomeric gaskets, terminal box gaskets, enclosure gaskets, O-rings, riser trays, convolute lead trays, washer and bushings, shaft seals, threaded rod, and insulated tubing.

What quality standards and engineering approach does The Gund Company use for motor insulation parts?

Custom-fabricated parts adhere to ISO 9001:2015 certified quality systems. The Gund Company employs a consultative engineering approach, collaborating closely with customers to identify optimal material choices and ensure engineered components that meet or exceed mechanical and electrical criteria for major OEMs.

What are some common rigid insulation materials used in electric motors?

Common rigid insulation materials include Mica M, G-3 (PF GC 201), G-9 (MF GC 201), Mica HD, G-11 (EP GC 203), GPO-3 (UP GM 203), G-10 (EP GC 201), GPO-1 (Class F, H, R; UP GM 201), C, CE, LE, PFCC 201/202/204, N155, N180, H755, EMD Grades, T160, N220, SG200, FR4 (EP GC 202), Side Ripple Spring, Top Ripple Spring, Semi-Conductive Laminate C109, MagNohl®, HST II, and PCGP-HT.

What are some common flexible insulation materials used in electric motors?

Common flexible insulation materials include Dacron/Mylar/Dacron (DMD), polyester PET film, Rag/Mylar (RMR), Nomex/Mylar/Nomex (NMN), Nomex® meta-aramid papers, epoxy coated Nomex®, G-Flex™ meta-aramid papers, vulcanized fibre, Kapton tape, and PTFE tape.

What are some common elastomeric materials used in motor insulation and sealing?

Common elastomeric materials include neoprene, cork-rubber, nitrile, EPDM, silicone, FKM (Viton®), butyl, and sponge.

AC Induction Motors >50HP

workhorses of industrial facilities

AC induction motors larger than 50 HP

AC induction motors larger than 50HP are the workhorses of industrial facilities due to their ruggedness, reliability, and low maintenance requirements. They are commonly used in applications requiring continuous-duty operation, high torque, and efficient power conversion.

Market Segment	Typical HP Range	Common Applications
HVAC & Building Infrastructure	50 – 500 HP	Chillers, cooling towers, large air handlers, district energy systems, ventilation fans
Water & Wastewater	50 – 2,000 HP	Municipal water pumps, wastewater treatment pumps, lift stations, desalination systems
Oil & Gas	100 – 10,000+ HP	Pipeline pumps, gas compressors, refinery process pumps, LNG facilities, offshore platforms
Power Generation	100 – 5,000+ HP	Boiler feed pumps, condensate pumps, cooling water pumps, induced draft fans, auxiliary drives
Mining & Minerals	100 – 10,000+ HP	Crushers, grinding mills, slurry pumps, hoists, draglines, conveyors
Pulp & Paper	100 – 5,000 HP	Paper machine drives, refiners, chippers, winders, process pumps, ventilation systems
Cement & Aggregates	100 – 8,000 HP	Kiln drives, raw mills, finish mills, crushers, material handling conveyors
Steel & Metals Processing	100 – 10,000+ HP	Rolling mills, coilers, unwinders, furnaces, material handling systems
Chemical & Petrochemical	50 – 8,000+ HP	Compressors, reactors, agitators, mixers, process pumps, extruders
Marine & Offshore	50 – 5,000+ HP	Thrusters, propulsion drives, pumps, winches, deck equipment
Food & Beverage Processing	50 – 1,000 HP	Refrigeration compressors, mixers, grinders, conveyors, packaging equipment
Material Handling & Logistics	50 – 1,000 HP	Conveyors, stackers, reclaimers, bulk handling systems, crane systems
Industrial Manufacturing	50 – 2,000 HP	Extruders, mixers, presses, machine tools, process equipment
Cranes & Hoists	50 – 2,500 HP	Port cranes, overhead cranes, mining hoists, gantry cranes
Transportation & Rail	50 – 5,000 HP	Locomotive traction motors, transit systems, maintenance facilities

AC Random Wound MOTOR STATOR INSULATION

Topsticks
Wedges
Filler Strips
Phase Separators
Slot Liners
Tapes
Tie Cord
Lead Wire Insulation
Terminal Boards
Lead Clamps
End Winding Support Rings
End Winding Support Blocks
Felt
End Baffles
RTDs
Magnetic Wire

AC Synchronous Rotor Insulation

Pole Collars
Tapes
Tie Cord
Pole Support blocking
Turn-to-turn insulation
Pole Ground Wall Insulation

AC Random Wound MOTOR ROTOR INSULATION

Topsticks
Wedges
Slot Liners
Phase separator
Tapes
Tie Cord

AC Form Wound MOTOR Stator INSULATION

Topsticks
Wedges
Filler Strips
Phase Separators
Slot Liners
Tapes
Tie Cord
Lead Wire Insulation
Terminal Boards
Lead Clamps
End Winding Support Rings
End Winding

Insulation Materials in Motor Applications



Mica M	G-3, PF GC 201	G-9, MF GC 201
Mica HD	G-11, EP GC 203	GPO-3, UP GM 203
G-10, EP GC 201	Class F GPO-1, UP GM 201	Class H GPO-1, UP GM 201
C, CE, LE – PF CC 201, 202, 204/305	N155	N180
Class R GPO-1, UP GM 201	H755	EMD Grades
Top Ripple Spring	T160	N220
Side Ripple Spring	FR4, EP GC 202	SG200
Semi-Conductive Laminate: C109	MagNohl®	HST II
PCGP-HT
Click here to view additional material datasheets.

Flexible Insulation Materials in Motors

	Dacron®/Mylar®/Dacron® (DMD)	Polyester PET Film
	Rag/Mylar®/Rag (RMR)	Nomex®/Mylar®/Nomex® (NMN)
	Nomex® Meta-Aramid Papers	Epoxy Coated Nomex®
	G-Flex™ Meta-Aramid Papers	Vulcanized Fibre
	Kapton® tape	PTFE Tape
	Click here to view additional material datasheets.

Elastomeric Materials in Motors

	Neoprene	Cork-Rubber
	Nitrile	EPDM
	Silicone	FKM (Viton®)
	Butyl	Sponge
	Click here to view additional material datasheets.