The BendPak RJ9W Rolling Bridge Jack is the ideal lifting solution for heavy-duty vehicles on the HDS-18E four-post lift, providing a 9,000 lb. lifting capacity to handle trucks and SUVs with an unbalanced center of gravity. Designed for durability and ease of use, it comes equipped with easy-roll wheels that glide smoothly along the runway channels, making positioning and adjustability effortless. The jack's rubber contact pads securely engage the vehicle's undercarriage lift points without causing any damage, ensuring a safe and reliable lift every time. For added versatility, the RJ9W includes stackable adapters that help lift vehicles with varying suspension heights, making it easier to maintain balance, especially when using multiple jacks. Powered by a high-pressure pneumatic-hydraulic unit, the RJ9W operates independently from the lift, providing full hydraulic power for lifting without sharing resources. The system also features foot pedal control for easy, ergonomic operation. With three lock positions for customizable lift height, you can achieve the perfect lift for wheel service and maintenance tasks. Backed by BendPak's reputation for quality, the RJ9W is an essential tool for any shop working with heavy-duty vehicles. Material: Steel.