Zaber's recently released the X-VSR Series - computer-controlled, stepper actuator driven vertical lift stages - capable of moving 10 kg loads. With a small footprint and measuring only 55 mm tall (when closed), these vertical stages are able to deliver exceptional travel and load capacity for their compact size.
Like all of Zaber's X-Series products, the X-VSR is able to daisy-chain power and data with other X-Series devices, allowing several to share a power supply. Manual control is easy, even without a computer, with an optional indexed knob.