Marathon-III MicromotorMarathon Multi 600 Brushless MicromotorMarathon Handy 700 Brushless MicromotorMarathon-N7(New Type) MicromotorMarathon-N8 Micromotor

Micromotors, Handpieces and Spare Parts

Brushless and brush micromotors, 35K and 45K handpieces, and the carbon brushes, armatures, chucks and bearings that keep them turning.

Answers

Micromotors and Handpieces: Common Questions

What is the difference between a brushless and a brush micromotor?

A brushless motor has no carbon brushes to wear, so torque stays constant and there is no brush replacement interval. A brush motor costs less to buy and the brushes are a cheap consumable, but torque drops as they wear. Brushless models in this category include the Marathon Multi 600 and Marathon Handy 700.

What does 35K or 45K mean on a handpiece?

It is the maximum speed in revolutions per minute the handpiece is rated for, so 35K is 35,000 rpm and 45K is 45,000 rpm. The handpiece must be matched to a control box able to drive it.

How often should carbon brushes be replaced?

It depends on hours of use and load, not on a calendar. The practical signal is torque: when the motor slows noticeably under a cut it used to make easily, inspect the brushes. Labs running a full day usually keep a spare set on the shelf.

Can I mix items from across Micromotors and Handpieces in one order?

Yes. Everything in this section ships from the same place, so a mixed order costs one freight charge rather than several.

Quote the Whole Micromotors and Handpieces Section

Tell us which categories you are buying for and we will quote them together, consolidated into a single shipment from Shanghai.