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Automation System

Robohand (Monroe, CT) has announced the Smart Linear Actuator (SLA) modular automation system featuring DIRECTCONNECT™ technology enabling integration of Robohand pneumatic slides, grippers, and rotaries. The SLA includes integrated servo/pneumatic motion control, an online Web configurator, networking capabilities, and weld field immune electronics. The SLA servo slide is available in models SLA-90, SLA-120, and SLA-150, with stroke lengths ranging from 100 mm to 1,400 mm, and maximum stroke speeds from 1 mm/s to 1,100 mm/s.

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Ball Bearings

SKF USA (Kulpsville, PA) offers self-aligning ball bearings that allow for angular misalignment of the shaft relative to the housing without affecting operation. The ball bearings gain their self-aligning capability from a design incorporating two rows of balls with a common sphere raceway in the outer ring. They are available with cylindrical or tapered bores, in bore diameters ranging from 5 mm to 130 mm.

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Frameless Motors

Applimotion (Loomis, CA) has released ULT direct drive frameless motors in sizes up to 355-mm diameter, with 200-mm through holes, covering , and lasers.

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Miniature Digital Servo Drive

Elmo Motion control (Westford, MA) offers the “Whistle” digital servo drive with up to 500 watts of continuous power at 99% efficiency. The device weighs 1.76 ounces and measures 2 × 1.8 × 0.6". It interfaces to brush DC, brushless PM, and linear and/or voice coil motors. Power is provided by an external 7.5 to 95 VDC isolated DC power supply. A supply control algorithm enables the device to operate with one power supply.

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Motion Controller

The RMC75E one- and two-axis motion controllers from Delta Computer Systems (Vancouver, WA) support Ethernet communications that can be used to download parameters and variables to modify motion control programs from a master controller such as a PLC or industrial PC. The interface features speeds of 10/100 Mbps with full- or half-duplex operation analog with auto-negotiation and auto-MDix crossover detection.

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Rodless Cylinders

The HORV Series of rodless cylinders from Humphrey Products (Kalamazoo, MI) have a flat piston that creates a profile that is 40% thinner than conventional rodless cylinders of equal bore and stroke. The block-type end cap eliminates the need for mounting brackets. The body places no loads on either the actuator axis or the stand. A sensor switch track uses a cap groove that allows the lead wires for embedded sensor switches to be drawn out from a single surface. The HORV Series features a high-strength stainless steel band instead of a plastic band, and is available with NPT ports and mounting options that include a shock absorber unit and F-tube supports.

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Motion Controller/Driver

A CAN bus interface has been added to the SilverDust™ IGB servo motion controller/ driver by QuickSilver Controls (San Dimas, CA) for servo control of NEMA 17 and 23 frame step motors. The CAN interface is fully isolated and supports up to 64 devices on the 1-MB bus. The new bus enables one servo to modify the motion of another servo using its I/O. The CAN bus may be used to interface to other CAN products or as a local bus for peer-to-peer data sharing for encoder position, velocity, torque, and I/O. The motion controller’s serial port remains available to interface to a host such as a PLC, HMI, or PC.

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