Stepper motor stepper motor reducer has a very wide range of applications, belongs to the mechanical equipment indispensable power equipment, especially in corrugated machinery, printing machinery, packaging machinery, transportation machinery, food machinery, color box, automatic warehouse, warehouse, three-dimensional parking equipment, textile, dyeing and finishing, chemical and other devices. As an important of enterprise equipment system in a transmission equipment, stepper motor reducer universality oil leakage problem will produce to the enterprise field management and security formed the great influence, therefore, looking for effective down processing method of step motor speed reducer leakage, has become an important problem to your career. Stepper motor of the speed reducer leakage reason has the following conditions: (1)Oil added too much stepper motor reducer in the process of operation, the oil pool the agitation was very fierce, lubricating oil and splatter everywhere inside the machine, if the amount is overmuch, make a lot of lubricating oil accumulation in the place such as shaft seal, in combination with surface, lead to leakage. (2)Stepper motor reducer oil pressure rises in a closed in the stepper motor reducer, each pair of gears meshing attack friction will emit heat, according to the Boyle trails by law, as the lengthen of operation time, to gradually rise, slow down the temperature inside the case and reduction volume inside the case, therefore, the pressure in the cabinet add, then in the lubricating oil splash, sprinkled on the inner wall of the step motor deceleration box. Because the permeability of oil is strong, under the pressure in the cabinet, which a seal is lax and the oil bleeding out from where. (3)It is no good repair technology in equipment maintenance, due to the combined surface dirt removing incomplete, or sealant choose wrong, seal, not timely replacement seal way, etc. Can also cause oil leakage. (4)Stepper motor deceleration pattern in oil spills, such as unreasonable structure plans for stepper motor reducer without ventilation hood, stepper motor reducer was unable to complete all pressure, formation pressure is higher and higher, in the present oil leakage phenomenon. For now the European and American countries use sauvy polymer repair materials effect is very good, the repair on the spill phenomenon more and more time saving, energy saving, good effect, high sex ratio. Sauvy polymer material has excellent adhesion, oil resistance, and 350% of the tensile strength and overcome the reducer oscillation formation, the influence of well processing for many years for the enterprise to handle the problem, save time and effort, the effect of success.