New and Unique Features of Rotomite SD110
Shallow draft, manned, self-propelled, diesel powered, versatile
Best Efficiency Point. The Rotomite-SD-110 operates at the nominal design Best Efficiency Point (BEP) of 1,475 GPM at 123 feet of TDH (in clean water). The dredge can reach flows of 2,000 GPM and 155 feet TDH.
Easy to operate. Designed with the operator in mind, the dredge has on-board storage in the operator’s station and a 12 VDC power point for the operator’s personal items - i. e., cell phone - with four additional 12V DC circuits, an adjustable helm, and even a built in cup holder. A walkway behind the operator’s station enables safe, easy operator movement from one side of the dredge to the other.
Portability. Weighting only 6,500 lbs, with an aluminum super structure and integrated mounts for most features and four lifting eyes, the SD-110 measures only 24.5 x 8 feet, can be lifted by almost any crane, and is transportable anywhere in the US without special permitting on a regular deck-over trailer.
102 inch wide Cutterhead; 8-10 foot dredge depth. The Rotomite-SD-110’s 102” wide cutterhead provides 8.5 feet of actual dredging width and 8’ - 10’ of dredge depth depending on the model chosen.
Electrical & fuel systems. The outboard motor for propulsion and 110 HP diesel engine to power the pump and auger have independent 12 VDC systems. The redundant electrical system that provides the operator the luxury of an extra battery onboard in case of unforeseen power loss incidents. The diesel engine includes is a marine-duty gauge package an emergency (high temperature/low oil pressure) shutdown system.
Dual power systems achieve quiet and economic operations. Running the outboard to navigate and the diesel engine to dredge enables the SD-110 to navigate quietly and at lower cost than competitive products. When the dredge reaches its destination, just fire up the diesel engine and proceed with dredging, with as little as 17 inches of water depth!
Pontoons. Pontoons are 20’ long, aluminum, urethane foam filled, internally reinforced, with integral lifting eyes. The pontoons are divided into 5 sections each of which has a rub strip on the leading and bottom edges for safety.
Propulsion. Equipped with a 40 HP four stroke outboard the SD-110 has a high power to weight ratio. Clean, quiet, and environmentally friendly, the SD-110 attains speeds of 10 mph in still water. The outboard is mounted on a hydraulically movable transom that the operator can turn up to 120 degrees from center line. The movable transom together with the steerable motor enable the SD-110 to maneuver in very tight spots, such as around boat docks. The 40 HP outboard motor with propeller is hinged to enable lifting above water level.
Sludge pump by Crisafulli's 4” J-Series, submersible, variable speed, hydraulic dredge pump with dual mechanical seal bearing frame.
Auger/cutterhead. Crisafulli’s Cobra cutterhead/auger assembly directly mounted to pump intake, is equipped with dual hydraulic auger drive motors (11,000 in.-lbs) of total digging torque with overall dimensions of 8.5’ width and 1.5’ deep.