The HD-9ST uses an electric-hydraulic power system with a single hydraulic cylinder mounted beneath the runway, fully enclosed lifting cables, multi-position safety locks, and adjustable lock ladders. Heavy-duty 3/8-inch aircraft cable, oversized self-lubricating cable rollers, rugged roller axles, and internal anti-sway slider blocks help keep lifting smooth and stable. A push-button pneumatic safety release, independent backup slack-cable safety latches, and protected internal routing for cables, locks, and sheaves support safer everyday operation. It is a slim four-post lift, but the engineering underneath is all BendPak.