Special Coverage

Transducer-Actuator Systems for On-Machine Measurements and Automatic Part Alignment
Wide-Area Surveillance Using HD LWIR Uncooled Sensors
Heavy Lift Wing in Ground (WIG) Cargo Flying Boat
Technique Provides Security for Multi-Robot Systems
Bringing New Vision to Laser Material Processing Systems
NASA Tests Lasers’ Ability to Transmit Data from Space
Converting from Hydraulic Cylinders to Electric Actuators
Automating Optimization and Design Tasks Across Disciplines
Vibration Tables Shake Up Aerospace and Car Testing
Supercomputer Cooling System Uses Refrigerant to Replace Water

Motor Controls

Cerus Industrial (Hillsboro, OR) offers the BAS (Building Automation Starter) motor controls that incorporate the company’s patentpending Smartstart™ Control Module for integration with digital controls. The starters accept dry voltage inputs (wide range 12-250VAC) for activation by control systems without interposing relays. Other control options include auto run, fireman’s override, fault, proof of flow (detects loss of load), and SmartStart predictive calibration (fault alarm). Integrated LED pilot lights and Hand/Off/Auto keypad are standard.

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Speed Reducers

Boston Gear (Charlotte, NC) offers the 700 Series speed reducers for heavy-duty conveyor systems. The 752 size worm gear speed reducers feature hollow output shafts in 5.25" center distance. Output torque ranges up to 12,250 lb.ft. Six new bore sizes are offered ranging from 2" to 3-7/16". Double reduction ratios are also available. The internal worm is specially ground for lower heat generation.

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Linear Drives

Amacoil (Aston, PA) offers Uhing Model RG linear drives with a manual pitch control that permits a 10:1 adjustment of the linear pitch of the drive unit. Each of the 17 drive units has a specific maximum linear pitch — the linear distance the drive will move on the shaft per one revolution of the shaft. The pitch control lets users turn the pitch down in 0.01 increments across 100 discrete settings.

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Dual-Axis Inclinometers

The Fredericks Company (Huntingdon Valley, PA) offers a microprocessor-based analog output dual-axis inclinometer with RS-232 communications, and a dual-axis inclinometer with RS-485 communications. They are designed to interface with all types of instrumentation and equipment, offer an angle range of ±60º in two axes (x and y), 0.2 arc-minute resolution (0.003 degrees), and ±0.1-degree repeatability. Custom angle ranges are available. Typical applications include crane boom angle measurement, robotic controls, satellite dish alignment, solar panel position and elevation control, wheel alignment systems, alarm system activation, machine tool leveling, and medical equipment positioning and monitoring.

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Slotless Motors

Nanotec Electronic U.S. (Medford, MA) offers the DS16 and DS28 slotless BLDC motors in two models in Nema 6 (16 mm) and Nema 11 (28 mm) sizes. Since there is no iron core, the inductivity of the motor is very low and the current increases very quickly in the windings. In slow operation, the lacking torque tripple has a positive effect. Since the magnetic field is not reinforced on the pole shoes as with standard BLDC motors, there is no cogging torque. The DS16 slotless BLDC motor offers an output of 24 Watts at 25,000 rpm; the speed of the DS28 model is 14,000 rpm at 75 Watts.

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Leveling Mounts

The V10Z44MCM Series of 3-in-1 leveling mounts from Advanced Antivibration Com - ponents (New Hyde Park, NY) dampens shock and vibration, provides leveling, and offers position mobility for packaging machinery applications. They incorporate a moveable mount in which the rubber mount is incorporated with a rotating ball. The maximum recommended load of the two isolators ranges from 200 kgf to 600 kgf (441 lbf to 1323 lbf). The diameter of the unit base ranges from 100 mm to 140 mm (3.9" to 5.5").

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Incremental Encoders

The OptoPulse EIL580 family of 58-mm optical incremental encoders is available from Baumer (Southington, CT). Available in various mechanical designs, the family includes clamping flange encoders with 10-mm solid shafts, synchro flange encoders with 6-mm solid shafts, and 8- to 15-mm blind hollow shaft and through hollow shaft models. All encoders feature graduated disc increments that can provide 100 to 5,000 impulses per turn.

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Vacuum Cups

Vi-Cas Manufacturing (Cincinnati, OH) offers vacuum cups in sizes to 15" in diameter to lift and manipulate large, bulky, or cumbersome materials like aircraft fuselage segments and fabricated assemblies. Round, rectangular, or oval cups are available for a variety of lift manufacturers. Sizes and types are available to fit virtually any type of vacuum equipment used for lifting, manipulating, or “pick-and-place” applications. Materials are available to suit applications such as food handling, high-temperature materials, anti-static for handling electronic components, and non-marking materials for sensitive products.

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Permanent Magnet Motors

NovaTorque (Fremont, CA) offers the Gen2.0 PremiumPlus+™ Electronically Commutated Permanent Magnet (ECPM) motors in 3hp and 5hp 2400-rpm (maximum speed 3600 rpm) models. Also available in 3hp and 5hp 1800-rpm models (maximum speed 2700 rpm), the motors utilize ferrite magnets. Driven by variable frequency drives, the motors feature motor-only rated point efficiencies of 93.0 and 92% percent for 3hp and 5hp versions, respectively. The motors are packaged in standard NEMA frame sizes and mounting dimensions. They are available both in the mounting frame size typical for induction motors, as well as one frame size smaller, and are compatible with variable frequency drives (VFDs) from most leading manufacturers.

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Servo Drives

Elmo Motion Control (Nashua, NH) offers the Gold Bell and Gold DC Bell servo drives for stepper motors. The Gold Bell servo drive weighs 55 g (1.94 ounces) and operates at 20A/100V, delivering 1.6kW continuous power (3.2kW peak power) with multiple voltage ratings of 12V-95V. The PCB-mounted driver is designed to operate in a closed loop (single or dual feedbacks), or in open loop, and has a “smart” control-supply algorithm enabling it to operate with only one power supply.

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