Progressive Engineers manufactures 4-Step Drum Controller. Progressive Engineers also manufactures various types of cranes. This Drum Controller is designed for controlling various motions of cranes. This Drum Controller is also suitable for controlling slip ring motors in other classes of machinery.
The 4-Step Drum Controller is housed in a sheet enclosure with windows on top and bottom sides. This Drum Controller has a larger diameter with contact fingers which are of hinged pattern and clamped to the bakelite insulated steel square bar. This Drum Controller has substantial arc shields on all main contacts. This Drum Controller has rating of 25 amps and is suitable up to 5 HP. This Drum Controller has approximate weight of 30 Kg.
