The MT large stroke push-pull electromagnet consists of a coil, a moving iron core, and a static iron core power controller. The structure is shell like, utilizing the leakage magnetic flux principle of spiral tubes, and utilizing electromagnetic moving iron cores and static iron cores to engage over long distances, with a stroke of 40mm to 60mm or more. Realize the linear reciprocating motion of the push-pull rod. Adopting the principle of power supply and electronic control conversion, high-power starting, and low-power maintenance, Hebei Qinneng [1] Technology patented demagnetization technology. The electromagnetic push-pull force can reach 300 kilograms. Traditional communication involves starting and operating a DC push-pull electromagnet with a voltage and current, which is prone to burning coils, has limited traction, and has a limited stroke. The long stroke traction electromagnet acts quickly and decisively, starting up for 0.10 seconds and returning to reset for less than 0.05 seconds. The operating frequency is above 3800 times per hour. The power supply can be AC, DC or AC/DC shared. It can start working frequently and can also be powered on for a long time. It can be used as an action execution unit in various simple or complex process flows to achieve remote control, centralized control, or automatic control. Widely used in industries such as power, machinery, metallurgy, mining, petroleum, chemical, lifting, cement packaging, etc. Characterized by reliable performance, sensitive action, and long lifespan