Milwaukee Fuel Series – Part 1: What’s all this talk about brushless motors?

Over the next couple weeks we’ll be talking about some of the technology used in Milwaukee’s new Fuel line of cordless products.

Our first installment in this series is about their new brushless motors. If you haven’t already been over to Milwaukee’s new Fuel microsite, you should check it out. You can have a look at some of the new products that they have been developing. There is a lot of hype about how Milwaukee’s new Powerstate Brushless motors are lighter, more efficient and more powerful than anything in the industry and hopefully we can better explain what this is all about.

Brushless motors essentially are DC motors with electronic commutators, which means instead of having brushes riding on copper commutators, you now have electronics controlling all of this. Removing the wearing parts in a motor means no longer replacing brushes, nowhere near as much heat build up, transmits less EMI, is impacted by EMI less and doesn’t produce sparks and particles that are dangerous to your health and the environment, all of which make them better suited for hazardous work environments. With less heat build-up, brushless motors can also be hermetically sealed for use under water as all of the heat is now manageable by conductive cooling instead of the brush style active air cooling. Brushless motors also have a unique power band: higher than normal torque at low RPM. This allows brushless motors to be controlled to a greater degree at lower RPM’s.

Not all of these attributes apply to all brushless motors. The following though do apply to Milwaukee’s new Fuel system.

  • Higher torque and increased efficiency throughout the whole power and due to FUEL’s electronic delivery system.
  • Less parts – means longer life expectancy of tool
  • No more replacing brushes – means less down time
  • Not at much heat build up – means less wear on the tool and longer life
  • Much better control of the tool at lower RPM’s
  • 4-pole motor with neodymium iron boron magnets that deliver more control at lower RPM’s

Expected Regular Prices:

Milwaukee 2603-22CT 2603-22CT

1/2″ Drill/Driver Kit

Torque: 650 in lbs
RPM: 0-550 / 0-1,850 RPM
Tool Length: 7.9 in
Tool Weight (w/battery): 4.4 lbs
Includes: (2) Compact REDLITHIUM Batteries, Multi-Voltage Charger & Case

$299.99

Milwaukee 2603-22 2603-22

1/2″ Drill/Driver Kit

Torque: 725 in-lbs
RPM: 0-550 / 0-1,850 RPM
Tool Length: 7.9 in
Tool Weight (w/battery): 4.9 lbs
Includes: (2) High Capacity REDLITHIUM Batteries, Multi-Voltage Charger & Case

$359.99

Milwaukee 2604-22CT 2604-22CT

1/2″ Hammer Drill/Driver Kit

Torque: 650 in lbs
RPM: 0-550 / 0-1,850 RPM
BPM: 31,450 BPM
Tool Length: 8.1 in
Tool Weight (w/battery): 4.5 lbs
Includes: (2) Compact REDLITHIUM Batteries, Multi-Voltage Charger & Case

$339.99

Milwaukee 2604-22 2604-22

1/2″ Hammer Drill/Driver Kit

Torque: 725 in-lbs
RPM: 0-550 / 0-1,850 RPM
BPM: 31,450 BPM
Tool Length: 8.1 in
Tool Weight (w/battery): 5 lbs
Includes: (2) High Capacity REDLITHIUM Batteries, Multi-Voltage Charger & Case

$379.99

One thought on “Milwaukee Fuel Series – Part 1: What’s all this talk about brushless motors?

  1. It is a wonderful machine, what a pity that I couldn’t buy it, because ist very expensive in Hungary.

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