Specification: Designed for the reduction of test samples which are too large in volume to be conveniently handled. It handles any material from Sand sizes up to dia. 108 mm. Each Chute bar is 12 mm wide so that openings of 12-24-36-48-60-72-84-96-108 mm are possible. Supplied complete with two collecting pans. Clam shell hopper: 30 litres capacity. Very sturdily constructed, it is totally Cadmium Plated for rust protection.