Power Requirements for Gas Generators

Before deciding on a generator, it is important to consider the power requirements of the tool you need to operate, the number of tools (and accessories) you may want to operate simultaneously, and the total current consumption at any one time.

Our line of saws, hand tools, and accessories operate with induction type motors These motors require approximately two to three times the normal running requirement for startup. For example, a saw motor with a stated power requirement of 1426 watts and a startup factor of 3x the normal running load will require a generator rated at approximately 4278 watts. In addition, if a water pump is being used with the saw, this will increase your startup load approximately 138 watts for a total of 4416 watts (generator requirements listed below include water pumps where noted). If you are estimating the generator requirements for a coring rig motor, remember to take into consideration the additional load of a vacuum pump if one is to be used.

Another factor that must be kept in mind is that the normal running requirements are a baseline rating and are easily exceed if a motor is placed under a greater load (i.e. pushing a thicker material through the saw at a faster rate). Typically, when running a single tool on a generator, the difference between the normal load rating and startup load rating gives you an adequate buffer; but increased motor load can become a concern if you start your tools in series to lower your generator power requirements.

The power ratings listed are for the current line of MK Diamond products. Please check the rating on your saw to insure you make the proper generator choice.

This list does not include ratings for 3 phase or 50 hertz motors.

Use of a generator with MK brick and block saws is not recommended.

Masonry Saw
Motor Ratings      
Volts Amps Normal
Load Factor
MK-5005S 230 23 5290 W (4x) 21,298 W*
MK-2001 115 14.4 1656 W (4x) 6,362 W*
MK-2002/1280 115/230 16.8/8.4 1932 W (4x) 7,356 W*
MK-1080 115 12.4 1426 W (4x) 5,842 W*
BX-3 120 15 1800 W (4x) 7,338 W*
BX-4 120 15 1800 W (4x) 7,338 W*

* Includes 138 watts for electric water pump