H2W engineers have developed a compact Linear Induction Motor (LMAA-04-01) that can generate 10.6 lbs (47 N) of force at a 15 percent duty cycle. Operating at 208 VAC 3-phase 60 Hz, the synchronous velocity of this LIM is 160 in/sec (4 m/s). The LMAA-04-01 linear induction motor was designed for high speed operation; however, […]
Hybrid stepper-lead screw actuators from Thomson feature built-in anti-rotational guidance
Thomson Industries has expanded its line of stepper motor linear actuators with models featuring built-in anti-rotational guidance. The new motorized lead screw actuator (MLA) product saves designers of high-precision, shorter-stroke applications the cost, time and maintenance worries related to designing and building externally guided systems themselves. The actuator configuration provides effortless integration into the assembly […]
New Sealed Electronic Actuator Simplifies Upgrade from Mechanical Actuation
Southco, Inc., a global leader in engineered access solutions has added to its line of electronic actuators with a sealed version that simplifies the upgrade from mechanical to electronic actuation. Capable of accommodating higher mechanical loads, the AC-EM 10 electronic actuator facilitates the electronic actuation of Southco’s R4-10 rotary latch series and other latching mechanisms. […]
LINAK linear actuators in medical sit-to-stand lifts facilitate rehabilitation
By 2050 there will be two billion people older than 60, according to the WHO … and 2035 will see a 12.9 million shortage of healthcare professionals. Fortunately, some new linear-motion technologies could help satisfy some of the growing need for healthcare, especially in the segment of the industry dedicated to patient rehabilitation. Consider one […]
Voice coil motor features internal shaft and bearing, high force-to-size ratio
Moticont’s new GVCM-051-089-05S06 linear voice coil motor features high speed, high acceleration/deceleration, zero backlash, high accuracy, high repeatability, and an internal shaft and bearing. This compact, voice coil motor has a high force-to-size ratio with 5.5 lb (24.6 N) continuous force and 17.5 lb (77.7 N) of peak force with a housing measuring just 2.000 […]
Shape-memory alloys linear actuators: A new option for positioning
Now, one new actuator uses bundles of SMA wire made of specialty nickel-titanium alloy for reliable linear motion. Dean Pick, P.Eng. • President | Kinitics Automation Shape-memory alloys (SMAs) are those materials that respond to temperature changes by changing form factor. Originally funded by the U.S. Navy, SMA technologies were first commercialized by Raychem Corp. […]
When should you lubricate a lead screw?
It’s expected that a ball screw, with metal-on-metal rolling contact between the balls and the raceways, will require periodic lubrication with either grease or oil. One of the advantages that lead screws have over ball screws is that they can often operate without lubrication — eliminating maintenance and the potential hazards that come with using […]
Mechanical linear drives need no electronic controls for fine adjustment of travel distance
Amacoil-Uhing rolling ring linear drives offer a mechanical alternative to electronically controlled linear motion systems in automated machinery. The drives convert the rotary motion input from a threadless shaft into linear output. A new option for fine adjustment of travel distance permits more precise location of the end stops to set reversal points thus making […]
SKF Ecomag linear actuators enable safe, precise movement and positioning
SKF Ecomag linear actuators from SKF Motion Technologies, Inc. enable safe and precise power-driven movement and positioning of procedure tables and chairs in medical settings including hospitals, diagnostic centers, and outpatient facilities. These compact and cost-effective actuators allow for customization to meet the specific requirements of an application. Standard Ecomag actuators can be supplied in […]
When is resolution important for linear systems?
Accuracy and repeatability are standard specifications that describe how a linear motion system behaves along its travel and how closely it reaches the intended position. Resolution, on the other hand, is less often included in performance data for linear motion systems, but it can be equally important as accuracy and repeatability in some applications. In […]
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