HTS series compression type electromagnetic pump, automatic control of the pump, the fuel supply flow of 1-99 ml and intermittent time of 10-999 minutes can be adjusted according to mechanical equipment needs, with low noise, high efficiency, no pressure relief, compact structure, It is suitable for the lubrication of gears of machine tools, textile machines, elevators and woodworking machinery, lubrication of guide rails and chains, etc., without manual operation, and the effect of automatic quantitative oil supply.