Products

Reciprocating Linear Drive

The Amacoil-Uhing Kinemax reciprocating linear drive from Amacoil (Aston, PA) features pitch adjustment and automatic reversal without requiring clutches, cams, or gears. A ten-toone pitch adjustment range is possible by turning the dial on the front of the drive unit. The unit reverses direction automatically without reversing the drive motor. A mechanical reversal device changes drive nut travel direction with no interruptions in operation and without adjusting any controls.

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Linear Motor Stages

Dover, a Danaher Motion Co. (Salem, NH), has introduced the MMG Mini-Mag linear motor stages available in four models that deliver 25, 50, 100, and 150-mm travel. They provide uncompensated accuracy ranging from 2 um to 8 um, and resolution ranging from 1.0 um to 5 nm. Each model delivers repeatability to ±0.4 um and is rated for 8 kg load capacity. Features include an integral anti-creep linear guideway that eliminates the need for homing moves typically required to reset standard crossed roller bearing retainer cages.

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Linear Stepper Motors

Johnson Electric (Vandalia, OH) offers the Saia® UAL series of linear stepper motors that deliver constant positioning force up to 30N over the full travel distance of up to 15 mm, at speeds up to 4.16 mm/s at 200 Hz. They feature a removable bayonet-style flange for mounting, a flexible design that accommodates custom requirements, and a 20 × 30-mm footprint for space-restricted applications. The motors are available in unipolar or bipolar models for use in instrumentation, valve control, dispensing, metering pump, auger, and medical automation applications.

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Magnetic Lifting Tool

Bunting Magnetics (Newton, KS) offers the MagFORKLift that works with any type of forklift to move up to 1,100 pounds of material. It attaches to the two forks of a forklift and works in conjunction with four different sizes of Bunting® MagLift™ hand-controlled lifters, which hold, carry, and release loads. The lifters attach to the lifting tool and use permanent magnets to hold. They do not require special cables or electrical hookups. The system can safely handle different shapes and sizes of loads, and concentrate magnetic energy to hold through air gaps and surface coatings. The magnet is “turned on” by rotating the control handle, and a mechanical locking mechanism ensures that it cannot be released accidentally.

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DC/DC Controller

Linear Technology (Milpitas, CA) has released the LTC3890/-1 highvoltage, dual-output, synchronous step-down DC/DC controller that draws 50μA when one output is active, and 60μA when both outputs are enabled. With both outputs shut down, the LTC3890/-1 draws 14μA. The 4V to 60V input supply range protects against high-voltage transients, continues operation during automotive cold crank, and covers a range of input sources and battery chemistries. Each output can be set from 0.8V to 24V at output currents up to 20 amps with efficiencies as high as 95%, making it suitable for 12V or 24V automotive, heavy equipment, industrial control, robotics, and telecom applications.

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Positioning Sensor

The OLM distance measurement positioning sensor from SICK (Minneapolis, MN) is designed for high-speed positioning of overhead cranes, rail cars, elevators, and other vehicles. The vehicle can be positioned around curves and inclines. The sensor uses a linear bar code tape for positioning, enabling users to position vehicles with 0.1-mm resolution at a distance up to 10 km, providing more than 6 miles of unique positions at increased speed. It features four LEDs and a CMOS camera, and provides easy installation with an integrated skew and tilt angle.

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Torque Location Sensor Arm

KolverUSA (Westford, MA) offers the torque location sensor arm, an intelligent system that ensures every screw in an assembly is in the correct location at the right torque. Assembly sequences and X-Y coordinates are programmed with user-interface screens through the keypad. Torque programs are automatically selected and enabled from the screwdriver controller based on the arm locations and current sequence step. This telescoping arm provides the operator full flexibility on the assembly line. Made of carbon fiber, the arm collapses like a telescope. No PC is required.

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