AMGO MODEL RJ-8A - AIR OPERATED ROLLING AIR JACK - 8,000 LB. CAPACITY - VERY HEAVY DUTY FOR UP TO 15,000 LB. CAPACITY 4 POST OR SCISSOR LIFT. The RJ-8A ROLLING AIR JACK is a powerful Jack that gives you the extra capability needed on your 4 post or scissor lift. This is an excellent choice for adding extra revenue to your shop with the capabiliy to lift the vehicle wheels off the runway. It provides a ideal working height for tires, brakes and body repairs. Quick set up time and an excellent raised height makes the RJ-8A a real winner for those shops that demand speed and quality in ...