Retrofits

We are offering modular retrofit packages for Electric Shovels and Draglines.

Many of these machines have provided reliable service and good production for decades. But times have changed. Spare parts are more costly and difficult to come by, control systems like magnetic amplifiers are not taught in school any more, and other operators enjoy increased productivity from modern equipment.

If the mechanical life of your machine can use another boost, consider an electrical retrofit for your shovel or dragline. We can extend the life of your asset with new equipment reliability, ease of maintenance, and increased productivity. If you count your maintenance expenses and productivity losses over recent years, and compare them to the new capital investment for the retrofit, you will be pleasantly surprised to find a positive NPV, and an excellent IRR. We will gladly work with you on an analysis, to determine whether retrofit is the right decision for you.

Shovels

We offer complete AC drive systems with IGBTs or GTOs for electric mining shovels.

Draglines

We offer a variety of retrofit modules for M-G set draglines. These moduls include:

We also offer complete static AC packages for dragline swing drives with up to 0.8 leading power factor, and ultra low total harmonic distortion.