The bell-shaped, square container has been manufactured from high-grade steel sheet and welded oil and water-tight. Protected with all-round massive edge section, it proves itself also under harsh working conditions. The centric outlet with scissors-Type lock is 300 x 300 mm and can be dosed, operated by handle grip. The design is fitted in series with handle grip and 2 steering and 2 horse rollers from polyamide including locking brake.