COMMUTATORS FOR MOTORS
ISO9002 CERTIFICATED
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 From 1990,We are committed to fulfilling the commutator needs of motor manufacturers
worldwide.Today,we have succeeded in intergrating Patented Product Design,Cutting-edge Manufaturing Technology and Nationally Certified Quality Assurance System to manufacture commutators that can withstand some of the most demanding operating conditions;our core competency is in Mica-molded Segment-type Commutators,primarily,for the Automotive,Home Appliance and Power Tool Industries.
Our  Objective is to Provide a Product Unique to your Needs by utilizing a custom product design geared to meet your application requirements,international grade oxygen-free high conductivity silver-copper(10oz.or more silver per ton) and asbestos-free phenolic molding compounds,state-of-the-art equipment,a constantly refined manufacturing process and a stringent quality assurance system.We will have the capacity to produce 25million commutators annually .
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Commutator Type

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Tang-type Commutators

We provides highly reliable mica-molded segment-type tang commutators for applications in the home appliance and power tool industries.To meet the needs of high speed and current motors as in vacuum cleaners, we have the ability to provide reinforced ring tang commutators as well.

Riser-type Commentators

For automotive applications as in starter motors,we have developed a line of Mica-molded Riser-type commutators designed to withstand the rigorous environment in which such motors must operate.		 pic5.JPG (18006 bytes)
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Planar-type Commutators

In addition to Tang and Riser type Commutators,we also makes planar type commutators for automotive applications as in automobile air conditioner motors.

Representative Commutators & Their Application
p1.GIF (7903 bytes) Bars: 16-48 
O.D.: 20-50mm 
Used for Power Tools, 
D.C. Motors		 p13.GIF (13925 bytes) Bars: 16-48 
O.D.: 20-50mm 
Used for Power Tools,
D.C. Motors
p6.GIF (9271 bytes) Bars: 16-28 
O.D.: 16-30mm 
Used for  Power Tools, Vacuam Cleaner 		 p12.GIF (9136 bytes) Bars: 8-16 
O.D.: 16-30mm 
Used for Motorcycle starter motors.
p2.GIF (7888 bytes) Bars: 8-16 
O.D.: 10-40mm 
Used for Motorcycle starter Motors,Auto Motors,Home Appliances, D.C.Motors.		 p7.GIF (7698 bytes) Bars: 16-56 
O.D.: 20-70mm 
Used for Auto starter motors
p4.GIF (10521 bytes) Bars:7-25 
O.D.: 16-70mm 
Used for Motors of Auto Fan		 p10.GIF (7747 bytes) Bars: 5-16 
O.D.: 10-30mm 
Used for motors of Auto Oil Pump
p11.GIF (9352 bytes) Bars: 16-28 
O.D.: 16-30mm 
Used for Power Tools, Vacuam Cleaner.

COMMUTATOR SPECIFICATIONS
Parmeter Specifications
Spin Test For O.D.less than dia28mm At Room Temperature:after 10 mins.@linear velocity 68m/s max
      Bar-to-Bar Deviation<0.003mm.
      Change in O.D.< 0.007mm 
At 250 centigrade degree: after 10 mins.@lincar velocity 68m/s  max
      Bar-to-Bar Deviation<0.003mm.
      Change in O.D.<0.007mm
For O.D. dia28mm-  dia40mm At Room Temperature:after 10 mins.@linear velocity 68m/s max
      Bar-to-Bar Deviation<0.003mm.
      Change in O.D.<0.010mm
At 250 centigrade degree: after 10 mins.@linear velocity 65m/s  max
      Bar-to-Bar Deviation<0.003mm.
      Change in O.D.<0.010mm
Insulation Resistance At Room Temperature:150M ohm    min
At 140 centigrade degree:100M ohm  min
I.D.Precision With Bushing: H7 
Without Bushing: H8
Bar Insulation 1/3 max nominal insulating thickness between commutator bars.
Ac Frequency 50Hz,60Hz

Notes:
  1.The Bar-to-bar and Bar-to-Gnd.voltage specifications/tolerances 
depend on the motor application and your requirements.
  2.If your application requires tighter tolerances,please advise us 
of your specific requirement and we wil give it due consideration in 
our commutator design.

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