The 12AP-SRT includes BendPak’s patented automatic safety lock system and single-point release mechanism for controlled lifting and lowering. The Automatic Swing Arm Restraint System uses forged-steel construction and 360-degree grip to help keep arms locked firmly in place under real service loads. Dual hydraulic direct-drive cylinders, heavy-duty equalizer cables, self-lubricating Dura-Glide UHMW bearings, electric-hydraulic power, and safety locks in each column give the 12AP-SRT the strength and control needed for high-volume shop use. For heavier tire and wheel service, it brings short-rise convenience without acting lightweight.