Supplementing its existing rack and pinion system, Hepco’s HDLS (Hepco
heavy duty linear system) is a belt-driven, vee-guide system that is
capable of carrying loads of up to four tonnes. The guidance unit employs
either 64mm diameter vee-wheels for standard use, or 95mm versions for
higher loads, the base unit incorporating single-edge commercial
vee-slides mounted on the beam, with the slides positioned at the outer
beam edges. Between the two slides is a continuous 50mm wide AT20 belt,
attached to the moving carriage (a 75mm belt is available for tougher
applications). The belt is factory set but can easily be adjusted in situ.