PB Series Vacuum Reducer | Applied to Vacuum Cabin Door Opening and Closing Mechanism

● Side Handwheel

In high-end equipment such as semiconductor coating equipment, ion implantation equipment, vacuum experimental chambers and aerospace simulation cavities, the vacuum cabin door opening and closing mechanism is a key structure to maintain stable cavity vacuum environment. Ordinary reducers easily damage the cavity vacuum degree and pollute precision electronic components due to lubricant volatilization and insufficient sealing performance, while thevacuum reducer is a special precision transmission component adapted to vacuum cabin door opening and closing working conditions. The core advantage of the vacuum reducer is its ultra-high vacuum resistance. It stably adapts to the ultra-high vacuum working condition of 10⁻⁷ Pa, adopts low-outgassing special lubricating materials internally, and precipitates no volatile impurities during operation, permanently maintaining the clean and sealed state of the vacuum cavity. Optimized for sealed vacuum environments, the vacuum reducer has excellent overall sealing performance, preventing external air infiltration and ensuring constant environmental parameters of the vacuum cabin. The vacuum reducer has a complete specification system with flange sizes of 42/60/90/100/115/140/180/200/220/255 mm, adaptable to the opening and closing mechanisms of small laboratory vacuum cabins, medium semiconductor process cabins and large industrial vacuum cavities. The vacuum reducer has optional gear ratios from 3 to 100. The low gear ratio ensures smooth and impact-free opening and closing of cabin doors, while the high gear ratio realizes precise locking and positioning of cabin doors for enhanced sealing performance. With a rated torque of 5 to 1200 Nm, small-torque vacuum reducer models adapt to lightweight small cabin doors, and large-torque models drive thick and heavy large vacuum cavity cabin doors for full-scene adaptation. The vacuum reducer supports two output modes: shaft output and flange plate output, matching direct-connected and flange-fixed cabin door transmission structures. Equipped with linear and 90° angle motor connection modes, it perfectly adapts to narrow installation spaces on the side and bottom of cavities and avoids structural interference. Vacuum cabin doors require tens of thousands of high-frequency opening and closing cycles, demanding high stability and durability of transmission components. The vacuum reducer adopts special vacuum-grade gears, bearings and sealing accessories, resisting vacuum aging and lubricant precipitation, and operates stably for a long time without jamming, air leakage or failure. The vacuum reducer operates continuously and stably in PVD/CVD vacuum coating equipment cabin doors, electron beam welding vacuum cabin doors, aerospace ground simulation vacuum cabin doors and other equipment, ensuring constant vacuum environment of the equipment. Major vacuum equipment manufacturers prefer the vacuum reducer in non-standard cavity design and renovation. Its complete standardized specifications eliminate the need for customized mold opening, effectively shortening equipment R&D cycles and reducing production costs. With excellent ultra-high vacuum adaptability, high transmission precision and long-term stability, the vacuum reducer has become a standard transmission component for the opening and closing mechanism of all kinds of high-end vacuum cabin doors.