OTIS DAA20220EA Traction Machine

The OTIS DAA20220EA Traction Machine is a high-efficiency, gearless elevator drive system designed to deliver superior performance, energy savings, and smooth operation. Engineered by OTIS Elevator Company, a world leader in vertical transportation, this advanced traction machine ensures quiet, stable, and reliable service across a variety of elevator applications. Utilizing a permanent magnet synchronous motor (PMSM), it provides exceptional torque with minimal energy consumption and mechanical wear. Its compact, space-saving design is ideal for machine-room-less (MRL) and modernized elevator systems in residential, commercial, and high-rise buildings. The DAA20220EA is built for long service life, featuring robust materials, efficient cooling, and precise control technology for consistent performance under variable load conditions. With its low maintenance requirements, safety-enhanced components, and eco-friendly operation, the OTIS DAA20220EA traction machine exemplifies OTIS’s commitment to innovation and sustainability. Whether used in new installations or modernization projects, it ensures unmatched comfort, reliability, and energy-efficient operation for today’s smart buildings.

The OTIS DAA20220EA Traction Machine represents the pinnacle of OTIS engineering—combining advanced technology, superior efficiency, and long-term reliability to meet the growing demands of modern vertical transportation systems. Designed for both new elevator installations and modernization projects, this gearless traction machine delivers precise motion control, exceptional energy savings, and outstanding ride comfort, making it ideal for residential towers, office complexes, and high-rise commercial buildings.

At the heart of the DAA20220EA lies a gearless permanent magnet synchronous motor (PMSM) that drives elevator movement with remarkable smoothness and precision. By eliminating the need for gears, this motor reduces friction, mechanical losses, and wear on components—ensuring quieter operation and lower maintenance costs. The direct-drive configuration provides a seamless transfer of power, allowing for greater efficiency and superior torque output even at low speeds. This technology guarantees smoother acceleration, deceleration, and accurate leveling, significantly improving passenger comfort and ride quality.

One of the defining advantages of the OTIS DAA20220EA is its energy efficiency. The PMSM design and optimized electromagnetic control minimize energy consumption while maximizing performance. This efficiency not only reduces operating costs but also supports environmentally sustainable building initiatives, helping projects meet green standards such as LEED certification. The motor’s regenerative drive compatibility allows excess energy produced during braking to be recycled back into the building’s power grid, further reducing energy waste.

The compact and lightweight design of the DAA20220EA offers flexibility in installation, making it an ideal choice for machine-room-less (MRL) configurations and buildings with limited overhead space. Despite its small footprint, the machine’s high torque density ensures reliable performance under varying load conditions. Its modular structure simplifies both installation and future maintenance, enabling easy access to key components and minimizing service downtime.

OTIS has designed the DAA20220EA with durability and reliability in mind. Constructed with premium-grade materials and advanced thermal management systems, it maintains consistent performance even under continuous, heavy-duty operation. The machine’s enhanced cooling mechanism effectively dissipates heat, preventing overheating and extending the life of critical components. The precision bearings and high-strength rotor design ensure long-term stability and smooth operation throughout its lifecycle.