Product characteristic:

　　1. Explanation of ventilator model :

2.The ventilator is driven by external rotor electrical motor directly. The rated voltage of electric motor three-phase 380V, single-phase 220V, rated frequency 50Hz, the character of continuous service working system S1, the electric motor outer covering protection rank IP54, insulation rank F, cooling -down method is natural cooling IC0141, explosion-proof symbolization ExdⅡBT4Gb. The temperature of working ambience is -20℃～40℃. The altitude above sea level does not surpass 1,500m. The relative humidity is smaller than 90%, horizontal-type installation. (If you need special request, indicate it please.)

3.The ventilator is suitable to having for each kind of air conditioning units which the safety net covers, it can be used in the dangerous places of 1 area and 2 area for detonable gas mixture. The installation of air blower can be commonly and other two kind of forms, the commonly using form like chart shows：

4.The product is made of quality steel plates, then electrostatic spray coat.Also it can be made of quality galvanized steel plates. Spare parts are die formed. The final assembly is done on assembly line. Main pars are produced byadvanced crafts, such as rolling pressing impeller, undercutting shell, TOX riveting and etc.reasonable, small volume, low noise, high efficiency, long service life and so on the good characteristics; used safely and reliably.

5.The product accords with mechatronics technology. It is structure

6.The standard high quality bearings are used in the product, enhances the non- breakdown running time.

7.The ventilator is with the omni-directional stands, other special form stands for installation. Therefore, adjust conveniently. It is suitable for the different demands of installation places.

8.Please give clear indication of the model, the form of installation, using galvanized steel plates or not, and being with flange of venthole or not; when you order.

9.According to customers' requests, our company can design and make other form air blower for other installation form and the special use.

Note: fan performance parameters and fan structure size, the company has the right to modify, then without notice.

　　Technology Parameter and Overall and Dimension：

　　Technology Parameter and Overall and Dimension：

Shandong Freshair Co., Ltd. is located in Qilu Chemical Industrial Park. It has total assets of RMB 120 million, covering over 40,000 square meters and 270 employees. It is a medium-sized joint-stock enterprise approved by the Shandong provincial government, and has become a main production enterprise in China for air-conditioning fan, rail train fan and wind turbine.

Shandong Freshair Co., Ltd. is formerly a motor repair plant in Linzi District of Zibo City founded in 1956, which was transformed into a share-holding company renamed as "Zibo Air-conditioning Fan Co., Ltd." in 1993. The company adheres to the tenet of "people-oriented, science and technology-based", insists on the business philosophy of "integrity, cooperation, win-win, and development", carries forward the entrepreneurial spirit of "innovative, pragmatic, pioneering, enterprising, and progressive". Through hard work, the company successfully merged an electric fan factory in Zibo and Zibo Radio Twelve Plant respectively in August 1995 and May 1997, formed a diversified production and operation model and enhanced the market competitiveness. In 1998, the company responded to the government call to complete the property rights reform, restructuring into a private enterprise. In 2001, the company was renamed as "Shandong Freshair Co., Ltd." upon the approval of Shandong Provincial Trade and Industry Bureau. In 2008, the company invested more than RMB 50 million to move into Qilu Chemical Industrial Park in Linzi District, with the plant construction achieved a pattern of new industrial plant with modern high standard and garden-style.

Since its inception, Shandong Freshair has been committing to the research and development work for Freshair brand of fan products, and paying attention to product brand image. The company now has thirteen series of more than 2,000 varieties of air-conditioning fan products. The company adheres to the business path of "quality for survival, efficiency for development", having accessed to more than 30 national patents, and taken the lead in passing the ISO9001 quality system certification, CCC product safety certification, the European Union CE certification, the international welding standards system ISO3834 certification, the European railway products EN15085 certification and the international railway industry quality management system IRIS certification. In addition, the company has 11 series of products obtained the national industrial production permits. The company is well recognized by the domestic and international air-conditioning fan industry, and praised by the vast of customers.

Shandong Freshair Co., Ltd. has a first-class R&D team and a large number of skilled technical workers. The company signed long-term technical cooperation and personnel training agreements with more than 10 scientific research units and universities and colleges including Xi'an Jiaotong University, Shenyang Blower Research Institute and Shandong University of Technology. The most advanced multi-nozzle fan performance laboratory established in 2001 passed the accreditation of CNAS (China National Accreditation Service for Conformity Assessment). It is the first accredited enterprise laboratory in China, which marks the fan test data of Freshair has authority and international mutual recognition.

Shandong Freshair Co., Ltd. attaches great importance to the investment of production equipment. The company mainly possesses Nissan CNC punch purchased by nearly RMB 10 million, laser cutting machine and other advanced air-conditioning fan CNC equipment. The company has now more than 300 units of equipment. Advanced precision CNC equipment ensures the leading position of Freshair brand air conditioning fan.

Shandong Freshair Co., Ltd focuses on safe and civilized production, pays attention to the improvement of the company's safety management system, steadily promotes the safety management, and tries to create a security-oriented enterprise. The company passed the national security standardization Level three certification in 2010.

Shandong Freshair Co., Ltd. has a sound marketing system, setting up 12 offices and after-sales service points in China and having formed a huge and efficient market sales service network. The Freshair brand series fans are widely used in the Great Hall of the People, Diaoyutai State Guesthouse, China Central Television studio, Radio and Television Transmitting Tower, Shanghai Oriental Pearl, Nanjing, Shenzhen, Guangzhou and Beijing Metros, Beijing New Airport, Hong Kong Airport and Xiaotangshan Hospital and other places. BDW series of explosion-proof fan is equipped on ships, submarines and military equipment for several times; DF and LKZ series of fans are used for the national high-speed rail project; some products are exported to the United States, Canada, Japan, Russia, Brazil, Malaysia and other countries.

In the development course of more than 50 years, Shandong Freshair has won dozens of provincial and national awards: Freshair brand products are recommended as recommend products by the China Refrigeration Industry Association and Consumer Associations; Credit Enterprise under Key Protection of 3.15, China Quality Service Reputation AAA-level Enterprise, "Quality Assured Brand of China" named by the State Administration of Quality Supervision in 2002, "National Honor Unit"; approved as "High-tech Enterprise" by Shandong Science and Technology Department in 2003, named as "Shandong Famous Brand" by Shandong Trade and Industry Bureau in 2005; named as "Brand-name Products in Shandong Province" by Shandong Quality and Technical Supervision Bureau in 2006; awarded the title of "China's Top Enterprise in Management Competitiveness of 2006 " by China Management Science Research Institute; named "Shandong Province Star Enterprise of China Patent" by Shandong Science and Technology Department and Shandong Intellectual Property Office in 2010; and awarded the honorary title of "Management Progress Demonstration Enterprise in National Machinery Industry" by China Machinery Industry Association and China Machinery Industry Enterprise Management Association in 2011.