Machines of simple design, but manufactured with high quality materials and details: - Strong structure made of stainless steel. - Completely cleanable by means of a water sprinkle. - Stainless steel AISI 304 cylinder standing to the newest sanitary-hygienic norms, with no edge inside of it and no weld rests, to semplify the cleaning. - Completely realized standing to the most up to date accidental prevention norms, with protection on cylinder and low tension treadle drive. - Pistons provided with air exaust valve. - Forward feeding adjustable by means of knob. - Backward feeding always at nighest speed. - Complete with three polyethylene funneIs of different sizes, stainless steel funnels on request.