Motor use and maintenance carried out in accordance with the motor manual. Withdrawable mainfan; fan in the system of the outlet end of the main fan DK45, with fans pumping force, so that the fresh air from the intake air flow into the well shaft, and out through the exhaust air shaft. K40 main fan, explosion main fan (certified), Alar main fan by Zibo Blower Factory Co., Ltd. Zibo Blower Factory Co., Ltd. (www.zibo-fengji.com) is an industry leader in Shandong Zibo, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Zibo Blower leadership with the staff warmly welcome all inquiries negotiations to create a better future Zibo Blower.