The gear hobbing machine HF 4000 I is built extremely solid and stable providing utmost precision at gear hobbing. The machine bed is the strongest, most stable and resistant one in its class, optimally absorbing the enormous forces it is exposed to from all directions. The HF 4000 I is especially suited for gearbox- and end-product manufacturing in the universal gearbox-, construction machinery-, coal mining-, and wind power industries with workpieces up to 4000 mm in diameter.