The Atlas RJ45A rolling bridge jack adds 4,500 lbs. of lifting capacity to compatible four-post lifts, allowing technicians to raise a vehicle’s wheels off the runways for tire, brake, and suspension service. Its rolling design lets you position the jack beneath either axle without moving the vehicle, making it a practical addition to the Atlas Garage PRO9000 and other compatible 9,000-lb four-post lifts.
The RJ45A features adjustable support arms for runway openings from 36" to 54" and lift arms that extend from 30" to 60-1/2" at the center of the pad, providing flexibility when reaching vehicle lifting points. Its scissor mechanism helps maintain a level lift, while nylon rollers and a steel wheel allow smooth movement along the lift’s runways. Two mechanical safety-locking positions secure the raised load and relieve hydraulic pressure during service. Operation requires an external shop air supply delivering 70–115 PSI; exceeding 115 PSI can damage the jack.
This rolling bridge jack is well suited for home garages, automotive repair shops, and service facilities that use four-post lifts for both vehicle storage and maintenance. It helps expand the usefulness of an existing lift without requiring a separate lifting bay. The included four-piece truck adapter set provides additional reach for compatible truck lifting points, while the compact, low-profile design makes positioning easier beneath a vehicle.
Features
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4,500-lb capacity for cars, trucks, and SUVs within rating
- Air/hydraulic operation on 70–115 PSI shop air (external air supply not included)
- Adjustable support arms fit 36" – 54" runway openings
- Lift arms extend 30" – 60-1/2" at the center of the pad for varied lifting points
- Scissor mechanism for level lifting
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Two safety locking positions that relieve hydraulic pressure under load
- Nylon rollers for smooth movement and a steel wheel for durability
- Compact, low-profile frame that rolls the length of the lift
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Four-piece truck adapter set with on-board holder included
What's Included
- Atlas RJ45A rolling bridge jack
- Rubber lift pads (4-3/4" wide pad and two 1-3/8" lift pads)
- Four-piece truck adapter set — two 1-1/4" adapters and two 5" adapters — with holder
Specifications
| Atlas RJ45A Specifications |
| Capacity |
4,500 lbs |
| Operation |
Air/hydraulic, 70–115 PSI (external air supply not included) |
| Adjustable support arm width |
Fits 36" – 54" runway openings |
| Lift arm width (center of pad) |
30" – 60-1/2" |
| Max lifting height, no adapters |
11-3/4" (varies by lift) |
| Max lifting height, with adapters |
18-1/2" (varies by lift) |
| Safety locking positions |
2 |
| Truck adapters |
Four-piece set (two 1-1/4", two 5") with holder |
| Arm hole / adapter peg size |
1-1/2" |
| Crate dimensions |
39-1/2" x 23-1/2" x 12-1/2" |
| Shipping weight |
380 lbs |
| Warranty |
1 year, parts only |
Warranty
The Atlas RJ45A is backed by a 1-year parts warranty.
FAQ
Will the RJ45A fit my four-post lift?
The RJ45A features adjustable support arms that fit runway openings from 36″ to 54″. The lift arms extend from 30″ to 60 1/2″, measured at the center of the pad.
It is designed for 9,000 lb-capacity four-post lifts, including the Atlas Garage Pro9000. Confirm your lift's runway dimensions and compatibility before purchasing.
Do I need an air compressor?
Yes. The RJ45A requires an external shop air supply operating at 70–115 PSI. The air compressor and air supply are not included.
How high will it raise a vehicle off the runways?
The RJ45A provides a maximum lifting height of approximately 11 3/4″ without adapters and 18 1/2″ with the tallest adapters installed. Actual lifting height depends on the lift configuration and adapter selection.
Authorized Dealer - Full Warranty Included
