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Rotary Encoders

RESM rotary/angle encoders from Renishaw (Hoffman Estates, IL) combine stainless steel mounting ring/scale and dirt-filtering options with signal processing and IN-TRAC™ auto-phase bidirectional optical reference mark. The device offers speeds to 3,600 rev/min and accuracy to ±0.5 arc seconds, with resolution and repeatability to 0.02 arc seconds. The encoders are available in a range of shaft diameter sizes from 52 to 413 mm.

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Rodless Actuator

Tol-O-Matic (Hamel, MN) has introduced the B3W series electric belt drive actuator that can be used as a direct drop-in replacement for the company’s B3B actuator. The series features a sealed bearing system at both drive and idle pulleys, stainless steel dust band for internal parts protection, and a urethane steel belt. The B3W series can be used as an alternative to auxiliary rail systems.

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Stock Springs

Lee Spring (Brooklyn, NY) offers Type 316 stainless steel stock compression springs in wire sizes from 0.006" through 0.072". The compression springs feature squared and ground ends, and are ultrasonically cleaned. The springs are suitable for applications in medical products and processes, pharmaceuticals, food processing and handling, aerospace products, semi-conductors, consumer products, and heat exchangers. They can be manufactured in alloys including 17-7, beryllium copper, phosphor bronze, and Inconel.

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Tension Stepper

Azonic Products (Albion, NE) has released the Model 300 switchable tension stepper that allows set-up of up to four predetermined tension levels that adjust during a winding cycle. The switchable tension stepper enables a user to adjust to another tension level for regular winding speed and have another tension level for deceleration and tapping. A user’s existing winder controller controls the device remotely. The Model 300 is suitable for use with the company’s tensioning devices.

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Wire Draw Encoders

SICK Stegmann (Dayton, OH) has released the PRF incremental wire draw encoders providing resolution to 0.025 mm at lengths to 50 m. They are available with HTL or TTL interfaces. The encoders consist of the wire draw mechanism and an encoder. The rotation of the drum is proportional to the length being measured. The drum rotation is converted to an incremental signal, which is transmitted by a standard rotary encoder.

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Indexing Conveyor

The Dual Track Precision Indexing Conveyor from Conveyor Technologies (Milford, OH) permits single-track positioning accuracy for a variety of in-line operations. Dual tracks allow processing of smaller parts on each belt or large parts up to 10 pounds and 24" in length, across both belts. The conveyor is available in 12, 18, and 24" widths. Standard conveyor lengths are 2 to 10'. The conveyor’s accuracy is achieved with dual pulleys that are machined on an integral shaft then mounted on a common frame with matched timing belts that utilize the company’s AccuMove™ technology. A lower return support system prevents belt sag and oscillation.

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Stepper Drive

The STAC6-Si stepper drive from Applied Motion Products (Watsonville, CA) is programmable for standalone operation with Si Programmer™ Windows-based software with integrated tuning. A graphical point-and-click format combines motion, I/O, and operator interface functionality for machine sequencing.

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