Terex is introducing the Demag AC 100/4 for the first time to the US market. The maximum load moment of this mobile crane is 308 meter tonnes, its system length is 77m, with a 50m (164ft) telescopic boom plus 27m (80ft) of main boom extension. With a dolly, the crane is roadable in almost all US roads as the distance between axles 2 and 3 is 8ft. Road homologation is also possible with 16.00 tires. The compact steel design is of significant advantage. The AC 100/4 has a 19m main boom extension (HAV) that can be offset at the basic boom as well as at the 8 meter extension. Thus it is possible to either achieve large radii or to lift loads over projecting edges. The ability to also offset the 8m extension is currently unique, the company says. Four different stabilizer bases come as standard. The carrier engine is a liquid-cooled DaimlerChrysler unit, delivering 335kW / 445 HP @ 2,000 RPM. The separate superstructure engine has an output of 129 kW / 175 HP.
The Terex American HC 230 crawler offers 230 tonnes of lifting capacity at a reach of 14 ft, when equipped with a 77 SI boom/ Hammerhead tip. At 16ft reach with a 92 HI boom / offset tip the capacity is 230 tonnes as well. The maximum length of the main boom is 290 ft – and 390 ft with a boom extension. The crane is equipped with a load-sensing hydraulic system to ensure smooth and precise work. Driven by a 6-cylinder Cummins-engine with 325 HP @ 2,000 RPM the HC 230 navigates heavy terrain and climbs slopes of up to 30% (17°). The operator can adjust traction force and speed to match given operating requirements. Traveling speeds of either .55 or .37 mph may be selected. A fully hydraulic counterweight-system enables quick set-up times. Nine trucks (standard lowboy trailers) are required to transport the crane with a 260 ft main boom and 128,400 lbs standard-counterweight (38,800 Ib base plus 8 x 11,200 Ib overlays) to and from working sites.
With a lifting capacity of 120 US tons the RT 1120 is currently one of the most powerful rough-terrain cranes on the US market. A 5-section, 3-mode boom forms the basis for the boom system The basic hook height is 155 ft. As an option, a 30 to 56 ft bi-fold jib is available, as well as two additional 26 ft jib-inserts, allowing for a hook height of 271 ft. The crane is powered by a strong 300 HP Cummins engine. For ease of crane operation, the counterweight may be set-up fully hydraulically. In addition, the RT 1120 comes with electric over hydraulic dual axis joystick controls and disc brakes on all four wheels.
The Terex stinger-class BT 4792 boom truck has a lifting capacity of 47,000 lbs and total weight of 60,000 lbs is an extremely versatile machine. A working cage for one or two persons and a working platform can also be added. The maximum height of the main boom head is 101 ft – or 144 ft with main boom extension. The BT 4792’s exclusive color-coded boom and load charts help make operations easy and safe. Equipment also includes electronic load moment indicator and anti-two-block device are standard, and dual control stations with a direct mechanically controlled hydraulic system. The 2-speed planetary winch has a 10,500 lb maximum permissible 1 part line, 37,000 lb breaking strength, and 186 ft/min maximum line speed. Its maximum road travel speed is 74 mph.
Terex Comedil launched its new range of flat top tower cranes with the production of the CTT 231 (10 and 12 tonnes. This medium CTT series sits in between the City and the big series. The CTT 231 has a wide range of mechanical and jib configuration options allowing assembly with a maximum jib length of 70 m (minimum 30 m) as well as the possibility to use 5 m jib sections. The CTT 231 is a versatile machine, suitable for working on both small and large buildings. It reaches considerable free-standing heights – steel cables and winch speeds are a perfect solution to meet today’s construction needs. Capacity at the jib point is 2.1t. Maximum capacity is 10-12t.
