The Posi-Crank ergonomic work station is an economical variable height worker positioner. With a simple turn of a crank, the platform height may be adjusted to the optimum ergonomic level suitable for each operator. Benefits of the Posi-Crank include minimizing the risk of cumulative trauma injuries, back injuries and fatigue while maximizing efficiency and operator morale. The Posi-Crank incorporates the use of acme threaded rods and a series of gears for simple yet effective height adjustment. A heavy duty chain is used in lieu of a belt to ensure a positive working height without risk of slippage. The crank handle may be removed and placed on the handle holder for maximizing the operating space. The deck is constructed of 1/8" steel tread plate for strength and the best traction. Maximum capacity is 500 pounds. Vertical travel range is 3" lowered to 19" raised. The Posi-Crank is constructed of steel to provide for years of service. The unit is painted blue, while the ergonomic anti-fatigue matting is also blue. The electric hydraulic platform maintains the performance of the original manual crank version, but with increased user functionality. An electric version creates a more work friendly environment by minimizing manual labor. Raising and lowering personnel quickly and in a safe manner.