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Automated sample handling processes require reagents to be delivered quickly, accurately and reproducibly. The linear and rotary movements required for the positioning of the samples are performed by the ball screw.

It consists of a ball screw nut and a splined shaft nut running on a ground spindle. Depending on which nut is driven, single-spindle rotary, linear and spiral movements can be created with absolute precision and positioning accuracy.

Carrying out lifting and rotating movements simultaneously can significantly reduce cycle times for some applications. Due to the compact structure of the drive element, it is excellently suitable for use in structural groups and machine elements where space is limited.

The ball screw is used, among other things, in pipetting stations for automated blood picture analysis used in medical technology, as well as in SCARA robots, assembly equipment, tool changers and automatic implanters.

The use of a ball screw also minimizes design and assembly time, as only one drive module needs to be installed and adjusted.

Source: hiwin.hu