For jobs that require the compliance and float of a pneumatic manipulator, this machine gives the highest level of feel and position to payload. Positech's SAM uses pneumatic power to provide quick response and superior maneuverability with loads up to 900 pounds The Simple Air Manipulator's lift cylinder uses compressed air for vertical lifting positioning. Positech's SAMs come equipped with a standard operator-controlled up/down metering valve. As an option, automatic balancing control, combined metering and balancing control, or an ergonomic twist grip control, is available. Precision bearings at every articulating point to minimize resistance to movement.