Originally used for military purposes, the Blaster's 1/2 HP variable speed motor is explosion proof. Its thick steel protects the inner workings from all elements. The hoppers are made of rust-proof, high-density polyurethane, the hopper frames are powder coated with automotive style paint and the 9" spinners are made of stainless steel. The electrical harnesses include watertight, marine-style connections. The Blaster's direct-drive system links the motor directly to the auger, creating up to 75% more auger power than non-direct drive set-ups. And don't forget the motor shaft is made of stainless steel and is press-fitted with double ball bearings. Blasters have the most powerful spreader motor available. The Blaster's unique 1/2 HP, direct-drive motor is rated at up to 70 amps of surge power and 15 ft. lbs. of stall-torque to grind through those annoying chunks of salt or sand, and the direct-drive system applies the torque directly to the auger. One-touch operation provides you total control over Blaster spreaders. The illuminated in-cab controller (patent-pending) includes buttons for the on/off switch, the "blast" mode which provides an on-command 70 amp surge, and a "vibrate" mode (on select models). Blasters have a 5 year limited warranty if registered within 60 days of purchase, if not, then they only carry a 2 year warranty.