The Doepker Crane Dolly is purpose-engineered to work alongside demanding mobile crane operations, and every unit is built to suit the specific crane model it will serve — including custom boom connections. It is offered in 3-axle fixed tower, 3-axle rolling tower, 4-axle with tandem front steer, and 5-axle 2+3 or 3+2 configurations, at 8'6", 9' or 10' wide. Arctic-grade sealed wiring, full aluminum fenders, air ride suspension and a shot-blasted pure zinc finish are paint-matched to the customer's crane.