50 years of hydrostatic and how it all started
50 years of hydrostatics In 1969, exactly 50 years ago, Hembrug introduced it's first machine with a hydrostatic main spindle. Until then, Hembrug had sold more than 20,000 conventional turning machines, such as the DR1, the DR133 and the DR133-NC. However, these precision lathes, with conventional bearing systems, worked in the 1/100 mm range and [...]