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New Products at ConExpo 2011

Enhancing their Telebelt line, Putzmeister showcased the MX TB placing conveyor which was specially designed for large, civil projects that require mass placement of large aggregate, near zero slump concrete, such as dams, hydroelectric powerhouses, coal and nuclear power plants. The conveyor, offered as both the MX TB 130 and MX TB 600, is the final concrete placing tool in a much larger and complete solution the company provides through its Special Applications Business (SAB). The placing conveyors are fed by an overland conveyor system where a Maxon portable surge hopper feeds concrete onto a large feeder conveyor that then conveys the concrete into the MX TB`s hopper. Putzmeister also presented the TBS 130 semi-trailer telescopic belt conveyor. The semi-trailer configuration offers on-site advantages including greater mobility, a tighter turning radius and reduced axle loads. Additionally, since the semi-trailer chassis can be removed, the machine footprint is reduced, freeing up space for other job site tasks. Contractors around the world are able to specify the type of chassis and the trailer axle configuration, either two or three axles. Allentown featured the updated Thom-Katt TK 20 high pressure shotcrete/concrete pump (formerly known as the Powercreter® 20) which has both a larger hopper and mixer and is applied for mid-range wet-process shotcrete and pumping applications. The company also showcased the SPM 307 robotic nozzle manipulator. Formerly known as the AST 25, the SPM 307 is applied for wet- or dry-process shotcrete applications in underground work such as slope protection, or for tunneling projects where a smaller manipulator is necessary. Several different SPM 307 features provide job site benefits, including the ability to operate on either electric or diesel power which allows it to be used on any type of job site. A wireless remote allows the operator to be safely out from under newly excavated, exposed rock and a charging cable comes standard for when wireless is not allowed. Esser introduced its new SDVH 3/2 S-valve hydraulic diversion valve for continuous use on high-rise and long-distance pumping projects. It works with delivery pressures up to 130 bar and hydraulic pressures up to 200 bar. The S-valve design was used because it prevents any movement of connected delivery lines. The valve was designed for selective charging of two delivery lines (8/2011).

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