Mann and Hummel Filter Private Ltd manufacture Aluminium Cast Alloy Hopper Loaders. Mann and Hummel Filter Private Ltd is DIN ISO 9001 certified. This product is used in the plastics-processing industry. Aluminium Cast Alloy Hopper Loaders are available in Series FG 400. These are modular and compact designed. Apart from aluminium cast alloy material, the equipment is also made of stainless steel.