The LiftMaster TDC MAXUM Trolley DC Head Only is a commercial-duty operator head designed for sectional overhead doors that use a trolley-style rail and arm. As part of LiftMaster’s MAXUM DC platform, this head unit delivers precise, controlled door movement with a DC drive system engineered for high-cycle, daily operation in warehouses, logistics hubs, retail back-of-house, schools, and other commercial or industrial facilities. “Head Only” indicates the assembly includes the operator motor and control head without the trolley rail/track or door arm, making it ideal as a replacement head or an upgrade component for compatible MAXUM TDC trolley setups.
This operator head is intended to be paired with a matching MAXUM Trolley rail/drive assembly and LiftMaster monitored safety devices to meet UL 325 entrapment protection requirements. It supports standard commercial control accessories such as wall stations, remote controls, and monitored photo-eyes designed for the MAXUM series. Professional installation is recommended to ensure correct mounting, wiring, and programming, including setting open/close travel limits and verifying all safety inputs. Use on sectional doors where a trolley operator is specified, and follow all applicable codes and the manufacturer’s instructions for commissioning and ongoing maintenance.
