As electric rod-style actuators overtake fluid power in a variety of high-force applications, it is important to understand how different screw technologies compare in the search for optimum performance and low life-cycle cost. By Daniel Schmit • Product Manager | Tolomatic Inc. Electric-rod actuators with either roller-screw or ball-screw technology are playing an expanding role […]
Linear Actuators Archive
Get the latest product news, technical info, and FAQs about linear actuators.
Low-power voice-coil actuator for cryogenic environments
H2W Technologies’ new high-force, non-commutated dc linear actuator, otherwise known as a direct-drive voice-coil actuator, is designed specifically for use in cryogenic environments. Material choice and design parameters were implemented such that the motor can operate without degradation or damage when placed in a cryogenic environment. The model NCC14-78-830-1SM can generate a continuous force of […]
Transport and positioning perfected: Flexible Transport System FTS from Rexroth
With its linear motor-driven transfer system, Bosch Rexroth serves a wide variety of work specifications. For the highly dynamic transport and exact positioning of materials and workpieces, linear motor-driven transfer systems are an ideal choice. Bosch Rexroth is enriching this market segment with innovative solutions that can meet the specific requirements of series and special […]
Which type of linear actuator is best for thrust forces?
When an application requires pure thrust forces, the best type of linear actuator is often a rod-style actuator. Also referred to as “thrust actuators” and (when a motor is integrated) “electric actuators,” these electromechanical devices excel at providing axial, or thrust, forces for pushing, pulling, or holding loads. Although their function is straightforward, thrust actuators […]
Exlar GTX now with Hiperface DSL Stegmann absolute encoders
Curtiss-Wright Corporation’s Industrial Division announced that its Exlar facility, located in Chanhassen, MN, has added Hiperface DSL Stegmann absolute encoders as a part of their available Rockwell Automation feedback options. The GTX series joined the Exlar TTX, Tritex II, GSX, FTX, and K series Encompass product families in 2018. As an Encompass Partner, Curtiss-Wright and Rockwell […]
When to consider Kevlar reinforced belts for linear motion applications
Both types of belts commonly used in linear positioning applications — V-belts and synchronous designs — have internal tensile cords that serve as the primary load-carrying component. Or, as one engineer from Gates Mectrol put it, the tensile cords are the “muscle” of the belt. V-belts and synchronous belts are offered with tensile cords of various materials, including polyester, […]
PHD Inc. offers linear slides that are IP54 and even IP67 rated (for washdown)
PHD Inc. offers electric Series ESU linear slides that are IP54 rated with magnetic band sealing for rugged protection. These are electric-motor and belt-driven linear actuators with a robust enclosed design and high-capacity rail bearing system to deliver exceptional moment and load capability. Available in three sizes with travel lengths to 5,500 mm (with other […]
Physik Instrumente XY stage provides high speed and 10-nm resolution
Precision motion specialist Physik Instrumente (PI) now sells a new integrated XY stage — part of its compact high-speed positioning stage roster. All of these positioning stages are powered by ultrasonic piezo-linear motors — patented motors that deliver smooth motion, high resolution and rapid step and settle response. Also featured on the motors is a […]
SMAC single-axis servo controller starting at $200
SMAC Moving Coil Actuators has announced release of their next generation Very Low Cost (VLC) single axis DC brushed/brushless motor controller/driver. With a price of $250 for stand-alone ($200 for built in types) the VLC represents another 35% drop in price compared to many of the company’s previous controllers … and with no loss in […]
How to calculate motor drive torque for belt and pulley systems
Belt driven linear systems are common in applications that require long travel and high speed, such as gantry robots and material handling and transport. The motors of choice for these systems are often servo motors, for their ability to accurately control position, speed, and torque. Sizing and selecting the servo motor requires determining both the continuous […]
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