The HepcoMotion PSD 80 is a new screw driven linear unit, which is a companion to the popular and cost-effective PDU2 range of belt driven units, and to the larger PSD80 unit. It shares the PDU2’s use of Hepco Herculane wheels running inside a profile and is actuated by a stainless steel leadscrew with a bearing quality polymer nut. Ballscrew versions are available on request. The closed unit is fully covered with a stainless steel sealing band.Screw leads of 4, 15, 25 & 70mm are available, meaning that carriage speeds from zero up to ~1m/s are possible without the need for additional gearing.PSD80 carriages have a substantial 500N load capacity, and are also capable of thrust loads of 300N.The PSD80 beam profile is compatible with the Hepco MCS aluminium frame construction system, and can be assembled into multi-axis systems with Hepco PDU2 and PDU2M.