格南登福的 Drum、Wittig 和 Hydrovane 品牌采用往复式叶片、爪式和旋转螺杆等多项技术，制造领先的压缩机，适用于不断变化的移动运行环境的各种应用：
The Drum SC200, XK12/18 and Bulkine screws provide oil-free and air-cooled compressed air for the discharge of liquids and dry bulk in tankers and containers.
Gardner Denver Transport Solutions offer a wide range of both oil-free and oil-lubricated rotary vane compressors that are well known in the market place: Drum, Wittig, Hydrovane and Gardner Denver.
Applications typically are unloading liquids from road tankers and tankcontainers, e.g. liquid foodstuff, solvents, acids, alkalis, hot bitumen, resins and other chemicals.
The Drum D-9000 is an air-cooled, oil-free hook and claw compressor fitted inside an acoustically enclosed ancillary package for belt or hydraulic drive. It is used for the discharge of dry products from road tankers including powders, granules and pellets at very low noise levels. Ideal for vehicles in urban situations.
Delivering flows up to 920 m 3 / hr, the D9000 provides an ideal solution for all dry bulk discharge applications.