The 30USt machine was designed by a cross-functional team of experts from Manitowoc’s Lift Solutions team and National Crane’s Truck Modification Center, as well as the company’s engineering team. The primary application for this machine will be oil field applications, but it will also be viable for everyday taxi crane service.
“The NBT30H-2 TM is the next evolution of the boom truck, adding a tractor mount for oil field and taxi crane work,” said Bob Ritter, product engineering manager at National Crane. “It was built thanks to a winning combination of speed of engineering and focus on the customer. We’ve designed this machine to be road legal in all 50 [US] states, without special permitting, and provide superior ROI.”
The NBT30H-2 TM features a 69ft boom with a 78ft max tip height that enables more job site utilisation than a traditional 51ft tractor mount boom. It also offers 360° stability, with and without the trailer attached, thanks to the out and down main outriggers and stabilisers, as well as a fully integrated heavy-duty front outrigger; all of which can be used with full, mid and retracted span chart configurations. The hoist features a two-speed, high-performance planetary winch with a 390 ft, 9/16 inch rotation resistant wire rope that has a 7,700lb single line pull.
A boom rest has been placed right behind the truck cab for solid boom support in rugged oil field environments and quick, easy access to the truck engine for serviceability. A fixed position fifth wheel maximises loading distribution on the truck and trailer. The trailer itself is detachable, allowing for both oil field and taxi crane work. Finally, with nearly 5ft of truck frame space available between the crane’s frame and the back-of-cab boom rest, customisations such as platform installation, chain rack storage, tool boxes, and so forth are possible.
The NBT30H-2 TM features Rated Capacity Limiting (RCL) and anti-two block (ATB) systems. A graphical display capacity limiter and an anti-two block system provide audio visual warnings and a crane function lockout. A real-time colour display shows boom angle, length, radius, tip height, maximum permissible load, load indication and warning of impending overload condition. The machine also features real-time J1939 truck diagnostic and monitoring, such as engine regen status, fuel level, oil pressure, battery voltage and more. Finally, a standard Work Area Definition System (WADS) is included for operator definable non-lockout warning limits.
