Feature:Eelectric lifting magnetPowerful and compactSmooth and flat surfaceLow consumption and reliableApplications: assembly line, sorting machine, mechanical arm, experimental facility, etc Specification:Material: Pure IronInput Voltage: 24V DCPeak Force :25kgHolding Force : 18.5KgSuction Surface Diameter : 18Thread Size :M5Overall Size : 20 x 40mm / 0.79-inch x 1.57-inch (H*D) Lead Length : 260mm / 10.24-inch Cautions for the use of electromagnets:1.The object absorbed must be a good magnetic material. 2.The suction surface of the electromagnet must be smooth and clean. 3.The thickness of the object is 5mm best. 4.The contact surface of the object must be larger than the adsorption surface of the electromagnet Package Includes:1 x Holding Electromagnet