Atlas 412A Four Post Alignment Lift + RJ6BK Rolling Jacks ComboAtlas 412A Alignment Lift + RJ6BK Rolling Jacks Combo 12,000 lbs. Alignment Lift + (2) 6,000 lbs. Rolling Jacks The Atlas 412A 12,000 pound capacity four post lifts are designed and built to commercial grade standards and will provide many years of service. Our Atlas alignment lifts offer many exclusive features not found on many other competitor's lifts. This combo package also includes (2) of the popular Atlas RJ6BK Rolling Bridge Jacks. The jacks