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Reciprocating Platform

Amacoil (Aston, PA) offers a reciprocating linear motion platform driven by a rolling ring drive that reciprocates automatically without requiring motor reversal. Designed for a PCB measurement/cleaning process, the assembly may also be used for scanning barcodes on parts and other applications requiring repetitive back-and-forth movement. Rolling ring bearings inside the drive assure a backlash-free motion. Smooth reversal is achieved with a modified reversal mechanism that dampens the reversal action, dissipating forward momentum at the reversal points.

Posted in: Products, Motion Control

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Right-Angle Gear Drives

Torque Transmission (Fairport Harbor, OH) has introduced a line of right-angle gear drives housed in glass-reinforced nylon, and are available in two model groups: RAB (standard right-angle drive) and MAD (for miniature angle drives). Both models feature one or two inputs and 1:1 or 2:1 gear ratios. RAB gear drives measure 3-21/32 × 3-15/16 × 1-1/4" deep and weigh 12 ounces. They employ shielded, lubricated, hardened steel ball bearing and gears, and are rated at 1600 RPM and 1/3 horsepower maximum speed of 3000 RPM.

Posted in: Products, Motion Control

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Control System Software

SERVOSHAFT motion system control software from Danaher Motion (Wood Dale, IL) enables users to run all three functions of a control system (SCADA function, PLC, and motion control) from their own computers. The software meets IEC standard 61131-3 and supports the SFC, FBD, LD, ST, and IL programming languages. An OPC server enables communication with each SCADA system, and the platform also supports data exchange with PROFIBUS and CANopen.

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Ionizers

A line of Koganei blow-type ionizers is available from Humphrey Products Co. (Kalamazoo, MI). Designed to remove static electricity and dust, the device is available in one-head, two-head, and compact models. A range of optional solid and flexible nozzles provides coverage from a wide area, to as close as 1 mm from the workpiece. Low-voltage DC power supplies a high-voltage AC transformer that produces a high-frequency AC field.

Posted in: Products, Motion Control

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Motor Protection Circuit Breakers

The Series 330 motor protection circuit breakers from c3controls (Beaver, PA) are available with thermal and magnetic trip elements providing overload and short circuit protection, and magnetic trip element only for short circuit protection. Both units come in universal rating and markings (A, kW, and HP), as well as third-party certification markings. They meet UL and CSA standards requirements as Manual Motor Controllers for use as Motor Disconnects, and meet National Electrical Code requirements for use in multi-motor applications. Also included are visible trip indicators for fast identification of which device tripped in a control panel where multiple motor protection breakers are installed.

Posted in: Products, Motion Control

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The Air Bearing Advantage in High-Precision Positioning

All moving objects possess six degrees of freedom — three linear and three rotary. The task of a linear motion guideway is to eliminate, as closely as possible, five of these degrees of freedom, leaving a single rotary or linear axis of motion. Air bearings are the purest and highest-performance means of defining linear or rotary motion, and have substantial advantages over conventional mechanical guideways. These advantages become more pronounced as the desired resolution increases, and many aspects of high-precision positioning are uniquely enhanced when air bearing guideways are chosen.

Posted in: Features, Motion Control, Articles

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Motion Control Research Center Develops Speed Control System for SRM Drives

The Center for Rapid Transit Systems at Virginia Tech (Blacksburg, VA) is an internationally recognized drive systems and motion control research group with expertise in the design, simulation, and control of switched reluctance motor (SRM) drives and power converter topologies.

Posted in: Applications, Motion Control, Application Briefs

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