Linear Actuator Manufacturers
Linear actuators are devices that produce mechanical linear motion by converting various forms of energy into mechanical energy. Typically part of motion control systems in automated assembly processes, linear actuators are most often computer-controlled, although simple actuators may be powered mechanically by hand. The various forms of energy which power linear actuators include hydraulic, pneumatic, mechanical, electro-mechanical and piezoelectric. Linear actuators often act as servomechanisms to provide and transmit a precise amount of energy to work another mechanism or equipment part, or the actuator may do the actual work itself. Linear actuator manufacturers assist in robotic processes in a wide range of industries, including automotive, biotechnology, pharmaceuticals, food, packaging and electronics. Different types of processes use various actuator designs, including ball screw actuators, electric linear actuators (or electric cylinders), rotary actuators and miniature linear actuators. Piezoelectric and telescopic actuators are employed for specialty applications, with piezoelectric actuators supplying extremely small, precision movement, and telescopic, or spindle actuators providing vertical mechanical motion. Nearly all factory automation processes use linear actuators to push, lift, rotate or transport products or equipment during various manufacturing processes. Some linear actuators and units operate in vacuum, radiation, cryogenic, corrosive and underwater environments.
Some Leading Manufacturers
Bethel, CT | 800-245-5013
For more than 30 years, Del-Tron Precision has designed and manufactured innovative, high quality linear actuators. With our experience and technical knowledge, we can help you find an actuator for your specific applications. Whether you need a ball screw actuator, pneumatic actuator, or any other kind of linear actuator, you can count on us to satisfy all of your actuating requirements! Give us a call or visit our website to discover our complete offering of linear actuators!
Waterbury, CT | 800-243-2715
Haydon Kerk Motion Solutions is a leading manufacturer of precision linear actuators. Our high performance electric, pneumatic, and electromechanical actuators are utilized in some of the most demanding industries like the medical, aerospace, military, and semiconductor industries. We continue to stand up to the challenges of these industries with superior engineering and innovative design. We are confident that we can create the right actuator for your applications, so contact us today!
Battle Creek, MI | 800-537-9940
Here at Burr Engineering, we are devoted to providing high performance linear actuators at competitive prices. We have been manufacturing actuators for over 50 years, and we have a huge selection of high quality stock actuators. But more than that, we can build custom actuators to meet your exact specifications. Our diverse line of actuators includes 12 volt actuators, electric linear actuators, and other DC and AC actuators. Visit our website or give us a call to see how we can serve you!
Fort Wayne, IN | 800-624-8511
Since our inception in 1957, we have operated with the goal of providing our customers with reliable, high strength actuators. We have been manufacturing pneumatic, electric, and hydraulic actuators for more than 50 years, so we can handle even your most challenging actuating applications. Our actuators are regarded for their performance, flexibility, and long life, so regardless of your applications and working environments, we know we have the right actuator for you!
Actuators are not only powered by a variety of mechanical, electrical, pneumatic and hydraulic designs, but they also create motion based on several different principles. Many linear actuators use a ballscrew design consisting of a screw rod which rotates in and out of a housing, providing linear motion. Ball screw actuators, also called drive screws, are rotated using either a synchronous timing belt drive, worm gear drive or direct drive. The turning of the screw pushes a drive nut along the screw, which in turn pushes the rod out. Rotating the screw in the opposite direction retracts the rod. A cover tube protects the screw nut from environmental elements and contamination. Radial thrust bearings permit the screw to rotate freely under loaded conditions. Rotary actuators are not linear at all, although, like rotary tables, they serve purposes similar to those of linear actuators in assembly automation applications by providing radial motion. Most miniature linear actuators are electric, although some may use piezoelectric power for highly precise, short movement, while others are pneumatic actuators. Telescopic actuators utilize a fairly new “spindle” technology to provide linear motion; because they are telescopic, the length of the actuator can fit inside a fairly small housing, making telescopic actuators highly space-efficient.
When choosing from linear actuator manufacturers, several factors are important for the success of the actuator within its application, including the speed, stroke length and load rating of the linear actuators. The duty cycle accuracy and programmability requirements must also be measured, as well as desired lifetime of the linear actuator system, particular safety requirements, environmental concerns and space constraints. If the linear actuator system is not battery-run, the size and kind of motor (AC, DC or special) are important considerations. Different available electric motors, which include stepper, brushed DC or brushless servomotors, give different levels of torque and accuracy. Rotary actuators and linear actuators may be powered electrically, hydraulically or pneumatically. Electric linear actuators are typically powered by DC or stepping motors. Hydraulic actuators have brute strength, essentially no compressibility and excellent power-to-weight ratio. However, they tend to leak, have lower reliability, are higher maintenance, expensive and loud, use flammable fluids and generate heat. Even though pneumatic actuators are inexpensive, have rapid response and are simple and easy to control, they are also loud, and their position is difficult to control.
Electromechanical actuators are quickly replacing pneumatic actuators because they save money by reducing unnecessary energy consumption within plants, have vastly improved control and flexibility, are especially beneficial for multi-positional tasks and provide no health and environmental issues due to high noise levels. However, the tendency of these electrical linear actuators to spark limits their use in hazardous environments, and they have lower power and torque-to-weight ratios. Research has been moving forward on piezoelectric linear actuators and other forms of technology, which use short high voltage bursts to create small-scale movement, but this has been primarily focused on micro-actuators and micro-manipulation.