This product consists of a box-shaped main beam, end beams, a trolley, and a running mechanism. The electric hoist is mounted on an angled trolley as the lifting mechanism. The angled trolley is mounted off-center to one side of the main beam and features upper and lower horizontal wheels in a three-point arrangement with the vertical running wheels. The electric hoist has been moved from its traditional position below the main beam to above it, effectively increasing the lifting height. The trolley utilizes a conical motor brake and an open gear transmission. The box-shaped main beam is off-center and features upper and lower horizontal wheels, ensuring safety and reliability while preventing rail gnawing. The trolley is separately driven, with a conical motor brake and an open gear transmission.