High quality Commutator HARADA

TEL:03-3834-3071 Tokyo, Japan

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Information of our products

Commutators are available in different shapes and sizes. Each customer demands different commutator capabilities. To meet customer expectations, HARADA is equipped with facilities that can manage everything from small-lot to mass production. We aim to offer the commutators that best fit individual motors. We wish to develop products that are commensurate with performance and mass production cost.

Commutator Classification by Structure

Molded commutators (CMB + mica)Dimension table PDFDimension table Excel

Description
Consists of commutator bars and mica flakes, and provides excellent electrical properties. They are widely used in motors of all size.
Main uses
Power tools, large / small vehicles, office automation equipment, household appliances, motors for ordinary industrial purposes.

Molded commutators (CMB + mica)

Molded commutators (CUT)Dimension table PDFDimension table Excel

Description
There are produced from copper tubes by cold forging. They are suitable for mass production, thus reducing material costs.
Main uses
starter motors, ordinary industrial purpose.

Molded commutators (CUT)

Clamped commutators (CMB + mica)Dimension table PDFDimension table Excel

Description
There are two types clamp method. One is using V-ring to clamp commutator bars. The other one is that V-rings are screwed to these commutators, its usually at large size. Clamp type has excellent mechanical strength and heat resistant properties.
Main use
power tools, industrial cleaners, large vehicles, aircraft, trains, ships

Clamped commutators (CMB + mica)

Commutator Classification by Structure

Hook-type commutators (CUR, CUT)Dimension table PDFDimension table Excel

Description
It is able to get high productivity in winding process by hooking the wire to the tangs. We have several method to make the tangs, making from copper sheets, copper bars and tubes, for varying customer needs and characteristics of motors.
Main use
Power tools, automotive motors, household appliance motors,

Hook-type commutators (CUR, CUT)

Commutator Classification by Structure

Flat commutators (CUR, CMB, carbon)Dimension table PDFDimension table Excel

Description
They are made from copper sheets or copper bus bars and are flat. Carbon commutators are also categorized in this type.
Main uses
fuel pumps, motor for dental equipment, for ordinary industrial purpose.

Flat commutators (CUR, CMB, carbon)

Commutator Classification by Structure

Slip RingsDimension table PDFDimension table Excel

Description
Slip rings are required for conveying electricity to rotators. To meet varying customer needs, HARADA offers a wide range of slip rings.
Main uses
starter generators, lighting devices, construction vehicles

Slip Rings

Other Products

Description
We have supplied a variety of products to the world, press stamping, lathing, plastics molding, various machine.
Products
cold forging copper parts, blush holders, molding parts, commutator slitting machine, commutator spin tester, baking machine,
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