1.5 m (5 feet) high X 1.5 m (5 feet) wide X 8.5 m (28 feet) long-assembled width 5.5 m (18 feet)
High-strength, Low Alloy, Weathering steel plate is used in the fabrication of the Wilco pontoons. This steel had 5-8 times the atmospheric corrosion resistance and 30% more tensile strength than similar size A36 structural plate steel. Each pontoon has 5 bulkheads, providing 6 independent, watertight compartments. The bottoms of the pontoons are reinforced for rough terrain operations.
Wilco Manufacturing custom designed flanged center carbody makes assembly and disassembly faster and easier.
Specially designed marine grade 76 mm (3 inch) wide extruded 6061-T6 aluminum alloy cleats with 2 HDMP wear pads are capable of supporting the pontoons and excavator upper.
Three strands of specially designed, heavy duty, 102 mm (4 inch) pitch marsh buggie track chain are installed on each pontoon. The hardened track chain rollers run in pontoon channels lined with an abrasive resistant wear bar. The drive and idler sprockets are flame hardened to match the hardness of the track chain rollers.
Engineering Class 78 mm (3.067 inch) pitch, high strength, heavy-duty, offset side bar drive chain is used to transfer power from the sealed, two stage planetary final drive gear boxes to the driven sprockets on the track chain drive sprockets.
Power for the pontoon tracks is provide by the Cat 320D excavator upper’s diesel engine and main hydraulic pumps through a Cat hydraulic swivel. Cat travel motor/brake combinations are mated to the sealed planetary final drives to provide independent power to each pontoon track. Standard excavator travel controls are used.