Contributed FAQ courtesy H2W Technologies || Linear-induction motors work in applications that require rapid movement of large payloads. Linear-induction motors can output speeds to 1,800 in. per second (45 m/sec) or more … … and accelerations from 3 to 4 g. Standard LIMs can produce forces in the range of 720 lb (3,200 N) at a 3% duty cycle. […]
How do linear induction motors work?
Contributed FAQ courtesy H2W Technologies || Think of linear induction motors (LIMs) as rotary motors that have been cut and unrolled to generate linear instead of rotary motion. Linear induction motors are comprised of two parts, the primary and secondary, which interact with one another only when power is applied. Either the primary or the […]
Direct-drive linear motors with integrated encoders offer resolution to 1.25 µm
Moticont has added two linear motors to its SDLM Series of high-speed direct-drive linear motors. These compact drives with a 1.0 in. (25.4 mm) stroke are just 1.00 in. (25.4 mm) in diameter and 3.75 in. (95.3 mm) long. These direct-drive linear motors feature resolutions of 5 µm (0.000197 in.) and 1.25 µm (0.000049 in.) […]
ETEL expands linear motor line
As engineers expand their range of machines to a point where a larger payload is required, an upgrade of their linear motors may be necessary. So, to make their design process easier, ETEL has added extra ironcore linear motor lengths to each of their different widths. These new lengths are compatible with existing 50, 70, […]
Where linear motors improve designs: Application example in multi-axis stage
Machine-tool applications and the manufacture and assembly of semiconductor components account for more than half of all linear-motor use. That’s because linear motors are precise (albeit costly compared to other linear-motion options). Other applications for these relatively new motion components also include those that need fast and precise positioning or slow and extremely steady strokes. […]
ELP electric linear module from SCHUNK for user-friendly operation
The SCHUNK ELP can be adjusted in two simple steps making it the most user friendly electric linear module on the market. The end positions can be mechanically adjusted with a screw and the speed of extension and retraction is adjusted using rotary switches on the side of the unit. More after the jump. Speed […]
New linear motor stages with magnetic direct drives and motion controller
Ultra-precise linear motor stages are well-suited for industry and research positioning and scanning applications, such as found in precision automation, micro-assembly, biotechnology, laser beam control, optics, lens testing, and photonics alignment. Motion and nanopositioning industry leader PI is expanding its PIMag® series of high dynamics linear motor stages with 2 new models and a new […]
The top 5.5 linear motion stories of 2016
As a writer and editor, it’s always fun (and sometimes surprising) to look back at the end of the year and see what articles our readers were most interested in. And for you, our readers, it offers the chance to take a quick look at what are, at least to some of your peers, important topics […]
How linear force-current relationships from linear motors improve motion
Applying an electric motor is easier when one knows what it will output for a given input. The simpler it is to predict that, the more elegant and robust the design. To this end, some linear motors have linear force-current relationships so engineers don’t need to accommodate nonlinear effects through approximation or additional terms in […]
How to shrink the size of a linear actuator
Linear actuators come in a wide range of sizes, and over the past several yeas, manufacturers have been emphasizing more and more compact footprints. But no matter how small the actuator, the addition of a motor can make the overall size of the complete system too large for space-constrained applications. Some manufacturers are addressing this issue […]
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