Worldwide unique hydrostatic screw drives – all advantages at 1 glance

15 Advantages of lead screws compared to ball screws & roller bearings:

• Wear-free, as there is no contact during operation
• No loss of accuracy, even during long periods of operation under full load at maximum power.
• Speed
• Friction-free at low speeds
• No reversal of the frictional force when changing the direction of rotation
• Transmits the slightest rotary movements
• No stick-slip effect even at low speeds
• No fluctuations in the frictional torque due to ball circulation
• Higher axial stiffness than ball screws
• Much better damping: therefore better workpiece surface and tool life
• No vibrations due to the ball circulation
• Also suitable for high speeds and acceleration
• low-cost alternative to the linear motor with higher accuracy, much lower
• Heating
• Much lower power loss and therefore no problems with chips on the permanent magnet
• Many times lower cooling capacity than linear motors

8 technical features of our screw drives:

• Absorption of axial and radial forces and torques – Suitable for one-sided mounting of the threaded spindle
• High-precision bearing of the screw drive
• Double cones suspended between hydrostatic pockets for mounting in an “O arrangement”
• Integrated volume control by pocket pressure only, only one hydraulic connection,
• No additional electronic control required
• All supply and discharge lines in the flange surface
• Optional: Sealing to one side with sealing air/gap seal or sliding seal
• Spindle ends are designed according to customer requirements