Gottwald AMK 400-93 Load Chart PDF + Specifications

The Gottwald AMK 400-93 stands as one of the most iconic and rare all-terrain cranes ever developed, with only four units produced between 1982 and 1984. Designed during a time when heavy mobile lifting was rapidly evolving, the AMK 400-93 was Gottwald’s answer to the growing demand for a highly mobile, high-capacity lifting solution. Rated at 400 tonnes and built on a 9-axle chassis, this crane featured a robust 3-section telescopic boom that could extend to 57.1 meters under load, and accommodate up to 70 meters of fly jib for even greater lifting height and reach.

The carrier platform of the AMK 400-93 is powered by a 12-cylinder Mercedes-Benz OM 404.1 diesel engine producing 520 HP, mated to an Allison CLBT 754 automatic power-shift transmission. The 18×8 drive system ensures strong traction and stability, with multiple axles being both steerable and driven. The outriggers offer a wide base of 11.5 × 12.4 meters, foldable and reducible for transport. Operator comfort was also considered, with a two-man cab outfitted with heating and auxiliary controls. The fuel tank has a 1500-liter capacity to support extended operation periods.

On the crane superstructure, a Mercedes-Benz OM 407 A 6-cylinder diesel engine delivers 253 HP to power the hoisting, slewing, and derricking functions. The hydraulic system includes axial piston pumps for three independent circuits and provides precise, infinitely variable control. The hoisting system can lift up to 133 kN and achieve lifting speeds of up to 100 meters per minute. A 96-tonne multi-section counterweight system is hydraulically removable, making assembly and disassembly much more manageable on-site.

The hook block configurations range from a massive 400-tonne, 14-sheave block to a 32-tonne single-sheave version, offering excellent flexibility depending on lifting requirements. The AMK 400-93 also includes a robust safety suite featuring hoist and lowering limit switches, safe load indicators, and anti-fracture and overload protection mechanisms.

Historically, the AMK 400-93’s story is as unique as its engineering. The first unit was completed in 1982 for German crane company Riga Mainz. After the company acquired the larger AMK 1000-103 in 1985, the AMK 400-93 was sold to Colonia and later exported to Argentina’s Tecmaco, where it was upgraded to the AMK 500-93 variant with an enhanced boom and higher lifting capacity. The second unit was also built in 1982 for Hewden (UK), later sold to Taiwan’s Long Hu Lifting Company. Gottwald supplied a specialized boom transporter (AMK 400-73TR) for this unit, capable of maneuvering the boom across uneven terrain. The third unit, manufactured in 1983, was initially delivered to Toense Kranverleih GmbH in Germany, then sold to Interlift/Al Jaber in 1988. After working in England and the UAE, it was sold to Saudi Arabia’s Al Mojil in 1994. The fourth and final unit was built in 1984 for Al Jaber and was tailored for desert operations with additional cooling systems. This unit briefly worked under Bracht in Germany (retaining Al Jaber ownership), was sent to England for a lifting job, and eventually returned to Al Jaber.

The AMK 400-93 remains a symbol of 1980s heavy crane innovation—combining strength, transportability, and bespoke engineering into a legendary all-terrain platform.