Heat treatment furnace group transfer car is mainly for the cluster heat treatment furnace workpiece in and out and product operation; car body by the section steel, steel plate, etc. welded into a high-strength rigid structure, in the design of the steel frame needs to be fully taken into account the overall strength, deflection, deformation, etc., so that the steel structure is sturdy and durable; each transfer car has a bi-directional two sets of push-pull device, used to drive the cart transverse movement, two sets of positioning devices, used for the transfer of cars Two sets of positioning devices for precise positioning (±5mm); Hysteresis cable reel for power supply of the transfer vehicle; Control system has two modes, automatic and manual, automatic state will work according to the preset time and point, and equipped with obstacle sensing system, it will stop automatically when it meets an obstacle; Vehicle-mounted operating console can realize unilateral operation of the transfer vehicle; Open OPC interface.