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Averaging for Positional Accuracy
When the task is steering laser beams for marking or cutting, only the highest accuracy will do. One way to improve precision in positioning rotary tables is to average multiple feedback signals. This new dual-axis encoder is designed for the task, and to handle speeds up to 1300 rpm.
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Video: Programmable Encoder Elite
Not all programmable encoders are created equal. While all start with high native resolutions, it's the algorithm that differentiates good from unreliable, and prevents the duty cycle from deteriorating. In the devices showcased in this video, resolution is stored redundantly in non-volatile memory, making them as reliable as fixed-disc encoders.
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Mini Metric When Size Matters
When loads are light and the job demands small size, close tolerance positioning, and high-speed, this 8x6 mm stainless ball screw stands alone in the market. It's specifically suited for medical applications, such as when rapid approach and retraction is required. Bonus: precision-rolling, instead of grinding, helps lower component cost.
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Reducing Wobble in Rotary Work
Getting tooling in exactly the right place when manufacturing semiconductors, fiber optics, and other precision products can be challenging. These compact stages — featuring low profile, anodized aluminum body, and pre-loaded ball bearings — are designed to rotate components or tooling within confined spaces, helping to deliver smooth rotation and minimum wobble.
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Plastic Bearings Deliver Longer Life
igus Inc.
igus' maintenance-free plastic plain bearings, spherical bearings, and linear bearings and guides are fast becoming a standard choice for design engineers around the world. They are self-lubricating and deliver longer life at a lower cost. Plastic bearings can be used in a wide array of applications. Download an informational brochure. |
MSK Developing Rad Hard Motor Drives for Space Use
M.S. Kennedy Corp.
The M.S. Kennedy Corporation is developing radiation hardened motor drives for use in space applications such as satellites, planetary exploration vehicles, and launch vehicles. These motor drives are constructed with rad hard components and utilize hybrid microcircuit assembly methods to minimize size and weight while offering very high performance and reliability. Learn more. |
Decelerate Loads, Improve Product Performance
ACE Controls Inc.
Industrial and safety shock absorbers decelerate loads, prevent impact damage, increase cycle speeds, and reduce noise. Ideal for medical, aerospace, and defense industries, packaging, printing, bottling, furniture, automotive, transportation, amusement, and more. Selected applications include: rotary actuators, slides, material handling equipment, assembly, pick and place operations, machine tools, and cranes.
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Product of the Month — April
Festo Corporation
The EGC and DGC actuators are designed with the same external dimensions, for easy selection of the right motion technology for your application. Mix and match actuators with Festo, to combine the right performance with the right price.
For more information on EGC/DGC, please go here. |
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It's All in the Timing
In so many situations — from product introductions to telling jokes — success depends heavily upon timing. To make sure the timing is just right in a motion system, this new microcontroller incorporates multifunction timer-pulse units and a 16-bit general-purpose PWM timer. This allows for simultaneous control of up to three 3-phase motors.
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Controller Cuts Unplanned Downtime
When thousands of motors operate in an industrial facility, just keeping them going can keep everyone on edge. This "universal" device offers uncommon assistance — help minimizing unplanned outages. Diagnostic and control functions, including pole reversal, load-shedding restarts, thermal load monitoring, help prevent motor overloads and correct faults quickly should trips occur.
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Dual Identity Drive
Too often, engineers have sparse choices when tackling challenges like very low power range. This Swiss manufacturer improves designer flexibility, adding a new variation of its Acoposmicro drive. It can now support either stepper or servo motors and allows users to easily change over from stepper to servo and back again.
If you find this subject interesting, subscribe to the GlobalSpec e-Newsletter, DirectU2 The world of Drives.
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Video: Slimmed-down Yet Twice the Torque
Downsizing drives remains the trend as companies strive to reduce machine size. Following the trend, hollow shaft actuators highlighted in this video are thin, compact assemblies incorporating servo motor, encoder, and harmonic drive gear. Harmonic's SHA series offers double the torque of its standard units — and max torque of 3400 Nm.
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Profile Rail Guides Have Unique Sealing System
SKF/North America
New SKF® "LLT" profile rail guides integrate a unique "all-around" sealing system and unprecedented design features to protect against contaminants, increase repeatability, provide smooth-running performance, and promote longer service life requiring minimal maintenance. These guides ideally suit linear motion applications in the material handling, injection molding, packaging, medical device, read more... |
Super MX with C-Wiper Option
IKO International, Inc.
IKO C-Lube Linear Roller Way Super MX is a high-performance roller type linear
motion rolling guide with long term lubrication parts, featuring high
reliability, high rigidity, high accuracy, which are required by machine
tools, semiconductor manufacturing, and various equipments. Also MX can
be equipped with ultra dust-proof seal C-Wiper.
View the Super MX brochure. |
New Actuator Type GL-N
THK America, Inc.
Made in the U.S., THK's new Actuator Type GL-N offers newly engineered enhancement to offer the best of all actuator features with the unique benefits of Caged Technology in one actuator. The new GL-N actuator is proven rigid, precise, and available for quick delivery and is also an upgrade and direct... |
Better Encoder Accuracy = Faster Motion Control
MicroE Systems
MicroE Systems' Mercury II™ encoders now offer improved accuracy. Using the newest signal processing technology, cyclical error is just ±20 nanometers, surpassing more costly fine-pitch encoders. The result is faster, smoother motion control with speeds up to 10 m/s at 1.2 nm resolution.
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Careers & Commentary . . .
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Manifesto Maps an Engineering Future
Many nations face the challenge: how to maximize engineering's contribution to society. The dilemma inspired eight UK engineering organizations to publish a manifesto aimed at swaying pre-election opinion. Too often, it infers, public investing in engineering and turning it loose on society's biggest challenges gets talked about, but action isn't sustained. The call for action urges the political sphere to acknowledge engineering's role in fostering a stronger economic base.
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Video: Solar Flight — On a Wing and a Prayer
It was once thought impossible: a huge, lightweight emissions-free aircraft flying continuously through day and night using only energy collected from solar cells mounted on its wings. Yet, in April, the prototype Solar Impulse, weighing 1,600 kg despite its jaw-dropping 63 m wingspan, completed its inaugural flight over the Swiss countryside.
For more on this subject, subscribe to GlobalSpec's e-Newsletter, DirectU2 The world of Alternative & Renewable Energy. |
Share Your Thoughts . . .
About This Month's Topic
Would You Drive One?
Maybe you dismissed it when first introduced but would you now consider driving a Tata Nano, the world's tiniest and cheapest car?

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