YBDG SERIES EXPLOSION PROOF VARIABLE FREQUENCY SPEED REGULATING THREE-PHASE ASYNCHRONOUS MOTOR FOR SHIELD TUNNELING MACHINE FURNACE THREE-PHASE ASYNCHRONOUS MOTOR / Product Overview **5!lfcSWll&£GB/r 3836.1-2021 SllgP#:i§# )IfflgS<».GB/T 3836.2-2021 H2gP#: MM tI?h^“d”1SlPMiS^».GB/T 3836.3-2021 flfjtttFFi* fg3gB«: *±g£SVfitf’Mi£#», = JB/T 12968-2016 «Jffa YBDG series shield tunneling machines are equipped with explosion-proof variable frequency speed regulating three-phase asynchronous motors, which are suitable for driving the cutterhead of shield tunneling machines in coal mining environments. This series of motors complies with GB/T 3836.1-2021 "Explosive Environments Part 1: General Requirements for Equipment", GB/T 3836.2-2021 "Explosive Environments Part 2: Equipment Protected by Flameproof Enclosures", GB/T 3836.3-2021 "Explosive Environments Part 3: Equipment Protected by Increased Safety Type" e"", and meets the requirements of JB/T 12968-2016 "Three phase Asynchronous Motors with Variable Frequency Speed Control for Shield Machines". The explosion-proof mark Exdb I Mb for electric motors is applicable to coal mine environments containing methane and coal dust explosion hazards. / Technical Parameter The LY series furnace uses three-phase asynchronous motors, suitable for mid to high end heat treatment furnaces such as gas quenching furnaces, oil quenching furnaces, nitriding furnaces, etc. This series of motors is based on the localization of imported motors and independently developed and improved designs. There are various forms such as single speed, multi speed, and variable frequency, which can be used for mid to high end heat treatment furnaces with complex heat treatment processes such as atmospheric pressure, vacuum, and pressure. The unique water-cooled structure design and sealing treatment, as well as the selection of special shaft materials, can adapt to the high temperature and corrosive gas environment inside the heat treatment furnace. Flexible design solutions to meet users' specialized customization needs. Rated power Rated voltage Rated frequency wmmm Rated frequency Work duty Ingress protection Explosion proof grade Cooling method Cooling water pressure Cooling water temperatu re Thermal element / Technical Parameter Rated power Number of poles Rated voltage Rated frequency Work duty Thermal classification Ingress protection Cooling method Cooling water pressure Co ol i n g water tern p e ratu re Thermal element