Whether guiding, adjusting, positioning or moving uniformly, the demands on linear motion sequences are as varied as the available solutions. The linear technology comprises a broad range of linear units: from single or twin-tube units for simple manual operation and occasional use to automatic profile axes for frequent movement and highly dynamic positioning systems for constant use. The linear technology range also includes electrical lifting columns for height adjustment on work benches, control stations, devices and medical equipment. Electric cylinders in various sizes and designs, as an alternative to pneumatic cylinders, round off the linear technology range.