The REFINER FOR WOOD CHIP / CHIPS mod. RF22, is made with sturdy anti-corrosion and anti-wear materials, suitable for maintaining high performance standards. The refiner is a compact and robust machine, suitable for pulverizing both dry and wet wood chips and shavings, straw, paper, hay, cereals. The machine is made up of particular hammers in special steel mounted on a sturdy rotor; by turning quickly, they push the material onto the fixed counter knives, grinding it and making it come out of the holes in the grid. The grid is easily replaceable and can have holes with different sizes, allowing to obtain the desired grain size of the sawdust. Weight: 550kg Motor power: 22kw Overall dimensions: 1100mm x 1250mm x (h) 1400mm Number knives: 120 Width rotor: 240mm Diameter rotor: 800mm Grid hole diameter: 8