Key Specifications/Special Features: With compactly design, diverse function, can meet your need Our electric tubular motor are powerful Suitable for the automatic rolling door and window system of dwelling house, office, shops and hospitals OEM orders are welcome Powerful strength, overheat protection when overloaded In case in the absence of power, a release chain can be operated door manually Loading up to 300kg Limit switch unit enables precise adjustment of door in both up and down position Electric and manual operation Control panel wiring available to safety device, alarm lamp and remote controller Easy installation, legerity design, low noise, small power consumption 3 to 300Nm, 230/110V, with diameter 35, 45, 59, 92mm for selection Primary Competitive Advantages: Quality Approvals Guarantee/Warranty International Approvals Product Performance Experienced Staff