Quick Answer:
Load capacity is sized by bearing type, nominal thrust divided by friction coefficient (μ). On rolling bearings at μ 0.06, the RLA-200 moves about 33,333 lb (20,000 lb at μ 0.1); see the RLA load table for every model.
Load capacity for Roll-2-Roll Technologies electromechanical rewind guides is a sizing result, not a single rating. It's nominal thrust ÷ μ. On rolling bearings at μ 0.06, the RLA-200 moves about 33,333 lb (20,000 lb at μ 0.1); see the RLA load table for every model.
Key specifications:
- Thrust: 150–2,000 lbf nominal (BLA 150–650, RLA 500–2,000)
- Stroke length: 4–12 in (100–300 mm)
- Maximum speed (RLA): 15 mm/sec (0.59 in/sec)
The critical factor for sizing is breakaway force—the static friction the actuator must overcome to start moving the loaded stand. Using low-friction linear rail bearings dramatically reduces the required actuator size compared to sliding shaft designs (coefficient ~0.25).
For extremely heavy loads, the RLA Series belt-driven ball/roller screw actuators provide thrust up to 2,000 lbf (nominal) while maintaining precision positioning.