Features

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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Scanning Stages

PI L.P. (Auburn, MA) offers the P-714 high-speed XY-nanopositioning and scanning stages that are piezo-driven and feature a resonant frequency of 2.2 kHz for sub-millisecond response. Integrated position sensors and piezoelectric drives provide sub-nanometer resolution.

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Motorized Potentiometers

The MR267 motorized potentiometers from Micronor (Newbury Park, CA) include a current loop controller (CLC) option that remotely controls the potentiometer and/or rotary cam switch via a 4-20 mA current loop, 0- 2.5 V input, or external potentiometer. The CLC option can be specified for any of the company’s line of modular motorized potentiometers, cam timers, or rotary limit switches. Rotary limit switches are programmed via cams to electrically control events or provide status at pre-stages.

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Motor Control Center

The Square D® Model 6 Intelligent Motor Control Center from Schneider Electric (Palatine, IL) enables real-time monitoring and remote control of motor functions for industrial facilities. Motor protection features of Motor Logic® Plus II overload relays provide the capability to customize protection levels. With Transparent Ready® built-in data communications, the relays allow facilities to monitor or control motor functions remotely. A trunk and tap cabling system eliminates the control wire bundle, and mechanically protected, micro-style connectors protect against harsh industrial applications.

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Motor/Driver/Encoder

Lin Engineering (Santa Clara, CA) offers the SilverPak 23DE, and integrated NEMA 23 high-torque, 1.8° bipolar step motor; microstepping driver; and encoder. The system is 2.25" wide and is available in three body lengths: 2.52", 2.96", and 3.89". Depending on stack size, the integrated motor/driver is capable of producing up to 294 oz-in of holding torque. It operates from 15 VDC to 48 VDC and the available phase current ranges from 0.3 amps to 3 amps peak.

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