In the world of linear actuators, hydraulics traditionally held the king-of-the-hill on force, while electromechanical actuators were faster and more accurate. However, electric actuators are gaining ground on the force front. For example, a new electric actuator from Curtiss-Wright can deliver up to 40 short tons of force at 13.8 inches per second.
Curtiss-Wright’s Sensors & Controls Division has recently released a new Exlar brand electric actuator, the FTP215. This high-force electric rod-style press actuator is designed for press applications as it offers forces up to 36 tf, making it a possible replacement for hydraulic cylinders.
The Exlar FTP Series actuator allows machine builders to meet increasing performance demands, while minimizing maintenance and downtime. Based on planetary roller screw technology, the FTP Series aims to offer high force in a small package.
With continuous force ratings up to 36 tf (metric), 40 tf (short), and speeds up to 351 mm/sec (13.8 in/sec), and stroke lengths from 150 mm (6 inches) to 600 mm (24 inches), the FTP Series can be applied across a wide range of pressing applications.
The actuator’s features include:
- High capacity planetary roller screws offering up to 15X the life and significantly higher shock load resistance than a comparably sized ball screw
- IP65S (min.) environmental protection
- Idler pulley design simplifies motor installation and belt tensioning/maintenance
- Rigid circular front mounting flange
For more information on Curtiss-Wright’s Exlar brand of actuators, visit the company website.