一、Product Overview The CMTB series flameproof and dust explosion-proof variable frequency permanent magnet synchronous motor is a high-end special power equipment specially developed for high-risk and complex industrial environments where gas and dust coexist. Integrating four core characteristics of flameproof, dust explosion-proof, variable frequency speed regulation and permanent magnet high efficiency, its energy efficiency level reaches IE4 and above, and it strictly complies with the national standards of GB/T3836 series and GB/T12476 series. With dual explosion-proof protection, extreme energy-saving performance and stable operation performance, it has become the preferred choice for motor selection in high-risk scenarios. Adopting a fully enclosed self-cooling structure, optimized electromagnetic design and precision manufacturing process, the product can directly replace traditional flameproof asynchronous motors without modifying the equipment foundation, and is widely applicable to various medium and high-end flameproof industrial scenarios, providing core power support for enterprises to achieve safe, efficient and green production, helping enterprises practice the national "dual carbon" goal and reduce production and operation costs. 二、Core Advantages 1. Dual Explosion-Proof, Safe and Worry-Free: It has dual certifications of flameproof type (Exd) and dust explosion-proof type (ExtD) at the same time. The explosion-proof mark is Exd ExtD A21 IP65 T130℃ (mainstream specifications), which can safely operate in ⅡA/ⅡB/ⅡC class, T1-T4 level explosive gas environments, as well as 21st and 22nd zone dust hazardous environments. It avoids ignition source risks from the source, eliminates potential safety hazards in flammable, explosive and dusty scenarios, ensures continuous and stable production, greatly reduces fault shutdown losses, and adapts to high-risk and complex working conditions such as mines and chemical industry 2.Permanent Magnet High Efficiency, Significant Energy Saving: Adopting permanent magnet synchronous structure and optimized electromagnetic design, the energy efficiency level reaches IE4 and above, complying with the GB18613-2020 Level 1 energy efficiency standard. Compared with ordinary flameproof asynchronous motors, the efficiency is increased by 5%-8%, and the energy saving effect is more prominent than that of traditional high-energy-consuming motors. Relying on advanced technologies such as flat wire windings, it effectively reduces copper loss and improves power density. Taking the 160kW model as an example, under long-term continuous operation (8760 hours per year), it can save more than 60,000 kWh of electricity per year, save nearly 50,000 yuan in electricity bills per year, and the equipment upgrade cost can be recovered in 1-2 years, which meets the needs of enterprises for energy saving, cost reduction and green development. 3.Variable Frequency Adaptation, Stable Operation: It has its own variable frequency adaptation characteristics, which can be adapted to the variable frequency control system without additional modification. It has a wide speed regulation range (5～50Hz) and fast response speed, which can realize stepless speed regulation and adapt to the operation needs of different loads. The motor runs with small vibration and low noise. The vibration value of 2P motor is as low as 1.5 mm/s, and the noise is controlled below 85 decibels. The optimized rotor design gives it excellent dynamic response ability, quick start and stop, and adapts to frequent acceleration and deceleration working conditions, which can effectively improve the operation accuracy and stability of equipment and reduce equipment loss. 4. Convenient Adaptation, Durable and Worry-Free: The installation size of the same frame number is completely consistent with that of ordinary flameproof asynchronous motors (such as YBX3 and YBX4 series), supporting various installation methods such as IMB3 (horizontal), IMB5 (flange), IMB35 (horizontal + flange), etc. It can be directly replaced and upgraded without modifying the equipment foundation, greatly shortening the construction period and reducing the replacement cost. The protection level is IP65 as standard, with excellent dustproof and waterproof performance. The insulation level is Class F (assessed according to Class B temperature rise). Adopting high-quality materials and precision manufacturing processes, it is suitable for harsh working conditions such as high temperature, high humidity, strong corrosion and heavy dust. Motors below 280 frame adopt sealed maintenance-free bearings, which are convenient for maintenance, have a longer service life, and reduce maintenance workload and cost. 三、Core Parameters (Simplified Version) - Frame Range: 80～355 (covering mainstream industrial frame specifications); - Power Range: 0.55kW～315kW, which can meet the power needs of different scenarios, and some specifications can be customized; - Pole Number Range: 2～8 poles, mainstream 2, 4, 6 poles, suitable for the speed needs of various industrial equipment; - Rated Voltage: 380V, 660V, 380/660V (conventional), special voltage can be customized (such as 400/690V); - Rated Frequency: 50Hz/60Hz, supporting variable frequency speed regulation (5～50Hz); - Environmental Adaptation: Working temperature -15℃～+40℃ (customizable -25℃ ultra-low temperature start-up), altitude ≤1000m (high altitude can be customized), humidity ≤95% (no condensation), customizable WF1/WF2 anti-corrosion configuration; - Explosion-Proof Mark: Exd ExtD A21 IP65 T130℃ (mainstream specifications), special explosion-proof grade can be customized. 四、Application Scenarios Widely used in industries such as mining, metallurgy, chemical industry, grain and oil processing, building materials (cement, stone), pharmaceuticals, feed processing, etc., it is especially suitable for "gas + dust" dual hazardous scenarios and is the core power equipment in high-risk and complex environments. Specific applicable scenarios include: mine crushing workshops, flour mills, cement plant raw material workshops, chemical dust reactor supporting, feed pellet processing lines, metallurgical dust treatment equipment, pharmaceutical explosion-proof workshops, etc. It can be used as the power supporting for pumps, fans, compressors, conveyors and other equipment, solving the industry pain points of difficult motor selection, insufficient energy saving and unstable operation in high-risk and complex environments, and meeting the needs of enterprises for energy-saving transformation and safety compliance, as well as the needs of national key construction projects and green mine and smart mine construction. 五、Certification and Guarantee 1. Authoritative Certification: Equipped with flameproof certificate, dust explosion-proof certificate (complying with GB/T3836 and GB/T12476 series standards), CQC energy efficiency certification and CCC certification; optional export certifications: IECEX, ATEX, UL, FCC, DOE certifications, adapting to the access requirements of international markets (such as the European Union and the United States), ensuring product compliance, and can smoothly pass various safety inspections and project acceptance. Among them, the ATEX certification needs to be reviewed every 18 months, and the DOE certification needs to comply with the energy efficiency standards of the U.S. Department of Energy. 2. Delivery and Quality Assurance: The delivery period for conventional power/frame (0.55kW-160kW) is 2～4 weeks, and the delivery period for special customized models can be negotiated; 18-month quality assurance from the date of delivery, free maintenance and replacement of parts for non-human damage, and professional technical support throughout the whole process to solve the worries of enterprises in use. The technical documents related to CE certification need to be kept for at least 10 years. 3. Customization Service: It can meet various special customization needs, including special voltage and pole number customization, ultra-low temperature/high temperature start-up configuration, anti-corrosion coating customization for strong corrosion environments, encoder and brake matching, special explosion-proof grade customization, stainless steel shell customization, etc. It is necessary to communicate the needs in advance and sign a technical agreement to ensure that the customized products accurately adapt to the on-site working conditions. Supplementary Note: This document is a simplified version for the official website. For specific parameters and customization details, please contact us for consultation. The actual product shall be subject to the nameplate and instruction manual of the delivered product; the product appearance adopts industrial standard anti-corrosion coating, which can be customized in color according to needs. The surface treatment adopts nano-technology pre-degreasing without phosphate, which has excellent corrosion resistance and can adapt to special corrosive environments such as coastal areas and acid rain