Overhead sectional door most widely used for loading areas on all types of industrial premises and Designed with a curved overhead track, these vertically-opening sectional doors can be installed in areas with reduced head room. They provide heat and sound insulation with its composite panel construction.
The counterbalance and cable system provides quiet and straight forward operation for manual doors. Electric operation is available for larger applications that can incorporate many alternative operator options to suit all client requirements.
The standard outer panels are manufactured from 0.5mm thick, high quality zinc coating to BS EN 10147
For the best weather protection the sectional door panel has an interlocking hinged joint integrating a high quality seal the full length of the panel.
A counterbalance system is incorporated into the sectional overhead door to ensure efficient and effortless operation.
The counterbalance comprises of springs mounted on a steel shaft that are high tensile helical wound steel. It has been heat treated for enhanced performance for around 50,000 cycles.
Reducing shaft friction is achieved with the aid of brackets and guide rollers incorporating highest quality sealed bearings.
Overhead Sectional Door,Overhead Sectional Garage Door,Automatic Overhead Sectional Door, Overhead Insulated Garage Door Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hfgaragedoor.com
The “Research and Demonstration of Networked Integrated Supervision Technology for Major Hazard Sources and Safety Production in Large Cities†project aims at the overall framework of the safety production network supervision system, rapid response and transmission of monitoring data, cross-platform interface integration, data fusion and intelligent analysis, and major Critical technologies such as “no interference†access, on-site test access, real-time monitoring of network security system certification, real-time monitoring, forecasting and early warning, etc. have been systematically studied in depth, and three safety production industry standards have been compiled (promulgated and implemented) ) and 5 safety production industry standards (for review); developed 4 sets of safety production standard calibration devices, 8 sets of on-site special monitoring equipment and 6 sets of on-site special test equipment, in line with the safety equipment network monitoring system professional equipment inspection school Inspection and on-site testing requirements; research and development of safety production network supervision system software, with flexible performance that can be tailored, scalable, and practical, providing technical support for safety production supervision.
On February 17, the Ministry of Science and Technology of the Ministry of Science and Technology and the Department of Conditional Finance organized relevant experts in Beijing on the “Eleventh Five-Year†National Science and Technology Support Program Project “Research and Demonstration of Comprehensive Supervision Technology for Major Hazard Sources and Safe Production Network in Big Cities†( 2007BAK30B00) Project acceptance and project financial acceptance.
(Responsible editor Guo Fengqin)