We manufacture hydraulic cylinders for mining machinery. We also offer shafts and pins. We provide machining - turning, milling, grinding and rolling. We provide consulting in the field and project activities.

We are engaged in the design, manufacture and repair of large and special hydraulic cylinders and assemblies and downstream equipment. Honing, welding, deep drilling.

OSTROJ a.s. is a purely Czech company with a long tradition of manufacturing mining machines, conveyor systems and other technologies for underground work. It has been delivering projects to customers all over the world for more than 75 years and employs over 800 people on 42,000 square metres of production space.