Products

Servomotor Brakes

Nexen (Vadnais Heights, MN) has introduced the Eclipse line of servomotor brakes designed to mount to servomotors up to 20 horsepower. The spring-engaged brakes are equipped with a split-hub, zero-backlash clamp collar for attachment to the servomotor shaft. The flange-mounted brakes can be used with standard servomotors for integrated brake motor modular functionality. They come in a variety of input and output flange/shaft combinations.

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Linear Stages

Aerotech (Pittsburgh, PA) has introduced the PRO Series of side-sealed, hard-cover, ball-screw-driven linear stages available in 68 standard models with travels from 50 to 1500 mm. A variety of travels, widths, speeds, and load capabilities is available. The hard-cover design provides protection from debris, and the side seals keep dirt and particulates out of the stage and protect the bearing surfaces from contamination. The tabletop can be outfitted with an optional brush assembly to remove particles collected on the hard cover.

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Mechanically Commutated Drive

Maxon Motor (Fall River, MA) offers the RE 50 mechanically commutated drive that features an ironless rotor for detent-free running, and a combination of a two-pole neodymium permanent magnet with winding technology for high torque and acceleration. The drive measures 50 × 108 mm and is available with four different windings. It reaches a nominal torque of up to 0.38 Nm, a nominal speed of 2800 to 5700 rpm, and efficiency of more than 90%. Low nominal voltage of 24.70 VDC makes the drive suitable for battery operated applications such as electric vehicles, transport equipment, mobile systems, and robots.

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Servo Amplifier

Sanyo Denki America (Torrance, CA) offers the SANMOTION R high-speed EtherCAT interface AC servo amplifier that provides 100 Mbps communication. Multi-function software includes a motion simulation function that runs the same codes as the actual amplifier, allowing it to go directly from simulation to live usage without reprogramming. The amplifier does not require an interface board or additional hardware, and is connected with Ethernet cables to the Ethernet port of a PC. EtherCAT communication provides the ability to place both input and output data in the same data frame area to decrease communication cycle time. The device includes two inputs and two outputs; output capacities of 15A, 30A, and 50A; and input voltage of AC200V. It is compatible with AC servomotors of up to 1.5kw. Protocol is CANOpen over EtherCAT.

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Magnetic Encoder

Avago Technologies (San Jose, CA) has introduced the AEAT-601B compact, integrated, incremental magnetic encoder for speed detection, knob control, and rotary encoder applications. Housed in a protective plastic housing, it provides a resolution of 256 cycles per revolution and angular detection in a complete rotation of 360 degrees. The encoder has three-channel output enabling an index channel for each full rotation. It provides a closed-loop feedback system and is suited for use in systems such as motor and valve control systems, pan and tilt systems for security cameras, and thread winding machines. Features include contactless sensing technology, operating temperature range from -40 to 125 °C, three-channel output, single 5V supply, and direct connectivity through cable output.

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Rotary Stage

The M660 high-speed, direct-driven piezomotor rotary stage from PI (Physik Instrumente) L.P. (Auburn, MA) is designed using PILine® piezomotor drive technology. The stage reaches top speeds of 720 degrees/sec and resolution to 40 μrad. A self-locking ceramic drive holds the position steady at rest, and a directly coupled precision optical encoder provides phase lag-free, backlash-free feedback to the servo controller. A USB interface, software, and driver package enable integration into existing applications.

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Product of the Month: Ultra Compact Diode Laser

The new iBeam smart ultra-compact diode laser series from TOPTICA Photonics (Victor, NY) features digital and analog modulation; autopulse; a graphical user interface (GUI); high power levels (120 mW at 405 nm, 50 mW at 445 nm, 60 mW at 488 nm, 100 mW at 640 nm, 150 mW at 642 nm and150 mW at 660 nm); compact size (100 mm × 40 mm × 40 mm); single-mode fiber coupling; FINE (Feedback Induced Noise Eraser), which makes the iBeam smart completely insensitive to optical feedback; and a new SKILL function, which acts as a purely electronic “speckle killer” by decreasing the longitudinal coherence lengths of emitted light to a minimum.

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