Skyjack SJ20 is a self-propelled aerial lift designed for indoor and outdoor access tasks requiring vertical reach and compact maneuverability. It is commonly used in maintenance, installation, warehousing, and facility work. The SJ20 features a narrow chassis for navigating confined spaces and a working height suited to low- to mid-level elevated tasks. As part of Skyjack's aerial lift lineup, it is known for simple operation, durable construction, and service-friendly design. The model is typically classified as a vertical mast lift or personnel lift, depending on configuration and market. It is used where safe, elevated access is needed in tight work areas.