The pump is driven by an electromagnetic coil, which makes the plunger move to complete the thinning process and, under the action of the spring, to complete the oiling action. The pump is compact, simple to maintain and requires adjustment of the oiling cycle by means of a controller or PLC. It is suitable for resistance thin oil lubrication system and can be widely used in escalators, machine tools, spinning machines, plastic machines, packaging and printing, guide rails and other machinery.