Tolomatic electric actuators with expanded stroke range aims to replace fluid power cylinders

Apr. 10, 2018 – The Tolomatic family of electric rod-style actuators now features expanded stroke lengths up to 1.5 m (60 in.), says the company, which it says allows more flexibility for converting motion control applications with hydraulic or pneumatic cylinders to electric linear motion.

Designed for high duty-cycle performance in demanding applications, the RSX, RSA and ERD electric rod-style product families utilize planetary roller screws for longer service life compared to electric actuators utilizing ball screw technology, says Tolomatic. Tolomatic’s highest force actuator, the RSX, is expanded to 1.5 m stroke length (from 600 mm). The RSA and ERD are expanded to 1.5 m and 1.2 m, respectively, from 450 mm.
 
The RSX utilizes a tie-rod design, provides forces up to 133.5 kN (30,000 lbf) and is suitable for hydraulic replacement applications. The RSA HT is available in four sizes, forces up to 58 kN (13,039 lbf) and is described as the company’s most flexible product line for fluid power replacement. The ERD stainless steel, hygienic electric actuator rated, rated IP60k for applications in the food and beverage market, is available with forces up to 35 kN (7868 lbf). Tolomatic’s IMA servo linear actuator and ServoWeld spot-welding servo actuator platforms are also available with roller screw configurations at various thrust ratings and stroke lengths.