SCHWING ANNOUNCES STM BOOSTER SERIES TRUCK MIXERS 2001

Schwing America has announced the Schwing/Stetter line of booster series truck mixers designed specifically for American ready mix producers. Stetter is a wholly owned subsidiary of Schwing GmbH with success in the manufacturing and distribution of concrete products including truck mixers. After careful design modification for North American producers The STM Booster Series is now available from Schwing America, White Bear, MN.

The STM utilizes a lower drum angle to provide a more favorable center of gravity that results in stability advantages between plant and delivery. The drum is also longer and narrower to sit lower between the truck frame rails for better driveability. The narrower drum also aids in rear visibility netting more confident maneuverability on-site.

The lower drum angle improves water flow during mixing and transit to produce a consistently homogenous mix at discharge. When remixing on-site is required the distribution of water is faster and more thorough due to the optimized drum angle.

The drum features a large 46-inch opening for fast discharge on paving projects in as little as one minute yet feeds smoothly in low volume situations. The dry charging rate rate dry is one minute according to Schwing/Stetter. Durability is assured with reinforced pedestals, large eight-inch diameter rollers with center shaft lubricated bearings. A hardened roller ring is extra wide to prevent cracking. The ZF 7000 gearbox drives the drum.

Operator friendly features include: chutes supported on a greasable bearing for smooth rotation; a chute lock; favorable ladder angle; wide upper platform; splitter hose to allow washing from the platform; 125 gallon pressurized water tank; and 25 foot cable remote.

The hydraulic cylinder for pressurizing the booster axle features an internal accumulator to eliminate excess hoses and fittings while providing quick response time to variable road conditions. A cab mounted pressure gauge monitors adjustable pressures to meet state and federal highway limits. An electronic interlock assures that chutes are in the center position before booster activation.