IDER Technology Through 30 years of effort, the company has accumulated rich industrial experience in manufacturing Industrial Door Operator and High Speed Door Operator with Electric limit and Encoder Limit by Frequency Conversion motor,With professional R&D team and internationally-advanced technology, the company is engaged inR&D and manufacturing of AC/DC industrial door operators, high speed door motor and other door operator.Industrial Sectional Door Drives; High Line door operator; Industrial Flange Motor; Industrial Direct Drives Motor; Industrial Chain Drive Motor; AC/DC High Speed Door Motor; Servo High Speed Door Motor; High-Performance Doors Operator; Direct Drive Operator Chain Drive Operator; Loading Dock Control Systems,Sliding Gate Operator.All products have passed the CE,LVD,EMC,SAA,C-TICK and FCCcertifications..IDER is dedicated to working with every Door partner!