Terex 45t boom truck promises all round power
19 October 2011Terex has launched the latest in its series of Crossover boom truck, the 45USt Crossover 4500. Following an increasing trend for use of standard components across crane types, the Crossover range mounts a telescopic truck crane boom on a boom truck, and includes X-shaped stabilisers for 360° lifting power.
The Crossover 4500 uses a proven telescopic boom from the T340-1XL telescopic truck crane. With the X-shaped stabilisers first developed by Terex for the Crossover 6000, the 45USt boom truck has a lower centre of gravity and can pick at its full load chart in all directions. The new stabilisers also separate the crane's upper structure from the truck chassis.
The X-pattern outrigger positioning eliminates the need for the front stabiliser jack, typically required for boom cranes to counteract the weight of the engine when lifting. This decreases overall crane length by approximately 3 feet (0.9 m) to improve onsite manoeuvrability. The crane’s three-position outrigger—minimum 6.4ft (2.0 m), middle 18ft (5.5m), and maximum 24ft (7.3m) position span—allows the Crossover 4500 to be used in confined spaces and further enhances crane manoeuvrability.
The upper lift structure can be fitted to any approved commercial chassis that conforms to the crane’s loading standards, giving companies more options for crane configuration, Terex says. The Crossover 4500 quickly moves from job to job at highway speeds. Once on site, the crane is designed to deliver quick levelling and set up with its independently controlled outriggers and jib that quickly swings and pins into position.
Designed for optimum performance over a broad range of applications, the Crossover 4500’s four-section main boom offers a 105ft (32m) length with a 110ft (33.5m) maximum tip height. Two jib designs are available: fixed length 32ft (9.8m) and extendible 32–49ft (9.8–14.9m). Both jibs can be offset at 15° or 30° offset positions, providing easier reach when lifting over objects. With a rated 45USt (40.8t) lift capacity at a 9ft (2.7m) radius, the crane features a 155ft (47.2m) maximum sheave height when equipped with the extendible jib.
Unlike small boom cranes, the Crossover 4500 can be equipped with either one or two winches, giving it the flexibility to handle some complex lifts. The crane’s top swivel ball with hook and latch is rated at 7USt (6.4t). Alternatively, the available quick-reeving hook block features four sheaves to offer a 45USt (40.8t) capacity.
The Terex Crossover 4500 comes standard with a cab that can be fitted with a heater and/or air-conditioner. Joystick control of hoist, swing and boom elevation delivers precise lift placement. The crane’s pedal control operates swing brake and boom telescoping, while both hand and pedal controls enable the operator to manage engine RPM. Unique to most models in this class of crane, the work area definition system allows crane operating parameters to be set and provides an operating pictograph display and audible warning when exceeding established safe operating parameters.
