The HPE hydropneumatic feed unit is suitable for extreme applications thanks to its very robust design and high-precision throttle valves. High speeds can be alternated directly with very slow operating sequences, e.g. feed operations and very small advance feeds for drilling glass, separating hard metal, sawing metals, etc. The precision throttle valves offer the best possible adjustability of the hydraulic flow for optimum and regular movement, even at the lowest feed rates.