Standard Rotary Solenoid Functional Comparisons
Ledex® and Dormeyer® Solenoids supply the broadest available range of high performance, high technology actuators, as well as low cost, high volume products.
Custom Rotary Designs Our product development initiatives increasingly focus on full mechanisms and sub-assemblies that directly assist your efforts to eliminate inefficient vendor bases, reduce costs and inventory, and shorten product development time.
BTA® Actuators	Ultimag® Actuators	Rotary Solenoids
Power: Low power consumption; moderate torque output	Power: Low power consumption; moderate torque output	Power: Average power consumption; high torque output
Housing: Completely enclosed design with a variety of mounting and shaft configurations	Housing: Completely enclosed design with a variety of mounting and shaft end configurations; English and Metric units	Housing: Compact design with a variety of enclosure, mounting and shaft end configurations; English and Metric units
Solenoid Functional Advantages: High speed cycle rate; can provide closed loop velocity and position control	Solenoid Functional Advantages: Fast energizing time and extremely high speed cycle rates; on/off or proportional mode operation	Solenoid Functional Advantages: Most diversified rotary design for maximum versatility; on/off operation
Solenoid Life*: Field proven over 100 million cycles	Solenoid Life*: Field proven over 100 million cycles	Solenoid Life*: 1 million cycles; 50 million cycles on extended life models
Solenoid Operation: Quiet, shock-free operation; true rotary motion with no axial displacement	Solenoid Operation: Quiet, shock-free operation; true rotary motion with no axial displacement	Solenoid Operation: “Snap” acting engagement; some axial displacement necessary
Size: 5 sizes from 1 1/8" to 2 3/8" diameter and 3/4" to 1 5/8" long	Size: 3 sizes from 1 5/8" to 2 3/8" diameter and 1" to 1 5/8" long	Size: 9 sizes from 1" to 2 3/4" diameter and 5/8" to 1 3/4" long
Torque: Up to 12 lb-in	Torque: Up to 225 oz-in	Torque: Up to 122 lb-in
Stroke: Up to 45° stroke	Stroke: Up to –22 1/2° and +2 21/2° stroke from a 0° unenergized starting position	Stroke: Up to 110°