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http://www.zegamachinery.com/ 1.Directly used in underground coal mines and tunnels, flexible and portable for moving along the tunnel, with better constant high air pressure to ensure air supply to the air tools with mechanical efficiency 30% to 100% higher than on the surface, electricity cost 30% less and less air pipes. 2.Low rotation speed Oil-injected air end with upgraded alignment design for smooth operation, high solidity, low noise, long life, high efficiency and etc. Reliable air volume control system, automatic adjustment to 0-100% load, and auto adjustment of power consumption . 3.Resistance to explosion, protection of overload, shortage, phase failure and electricity loss, etc.; high temperature warning and auto shut down, air filter blockage and oil filter blockage warning; Volume control and pressure control to prevent pressure overload to ensure safety of operation. 4.Exclusively designed high performance oil and air separator ensuring oil content in exhaust air below 3 ppm. 5.Double-flow air coolers for better cooling performance, twice the regular coolers results. Zhejiang Zega Machinery Co.,Ltd Address: No.15, Braun Road, Qujiang District, Quzhou City, Zhejiang Province Postcode: 324022 Tel: 86-570-3375599 Fax: 85-570-3688903 Email: info@zhigaojx.com ZEGA Machinery (Shanghai) Int’l Trading Co.,Ltd Address: Suite 1703, United Power Int'l Plaza, No. 1158, Jiangning Road, Shanghai Postcode: 200060 Tel: 86-21-80108588 Fax: 86-21-80108599 Email: info@zhigaojx.com Shanghai Demo Centre Address: #105,Bldg 4,Juhua Industrial Park, Xinjia Road, Chedun , Songjiang District, Shanghai Postcode: 201611 Tel: 86-21-62366376 Email: info@zhigaojx.com