Qualitative analysis is the main virtue of folding the analyst's intuition, experience, with the object of analysis of continuation of past and present situation and the latest information, the analysis of the object's nature, characteristics, development of a method to determine changes in the law to make. In contrast, the former method is more scientific and hydraulic motor repair, but require higher maintenance deep mathematical knowledge of the hydraulic motor, the latter method, though more rough, but the data were insufficient or analysis mathematical foundation is weak when comparing applicable more suitable for the average investor and economic workers. But it must be noted that two methods of mathematical knowledge requirements, although there are high and low, but it does not regard the qualitative analysis and quantitative analysis distinct from open. In fact, modern qualitative methods also have to be calculated using mathematical tools, and quantitative analysis of the hydraulic motor must be established on the basis of the sale of the qualitative prediction, the two complement each other, based on qualitative and quantitative, qualitative and quantitative is specific, a combination of both up flexibly in order to achieve the best results. The motor pump is mechanical energy into hydraulic energy converting means, output flow and pressure, desired high volumetric efficiency; hydraulic motor to fluid pressure energy is converted to mechanical energy means, the output torque and speed, desired high mechanical efficiency. So that means the hydraulic motor pump is energy, and the hydraulic motor is the actuator. 2) hydraulic steering motor output shaft must be able to forward and reverse, so the structure was symmetrical; and some hydraulic pump (such as gear pumps, vane pumps, etc.) are clearly defined steering, only one-way rotation, can not free to change the direction of rotation. Hydraulic motor sales | crystal create hydraulic price (certified) | hydraulic motors provided by the Jinan Jing Chong Hydraulic Machinery Co., Ltd .. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) Shandong Jinan, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the crystal creating hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal creating hydraulic better future.