Product Focus: Motors and Motion Control

Linear Voice Coil Stage

A high-performance linear DC motordriven stage has been released by Moticont, Van Nuys, CA. The 1-μm resolution VCDS-025-038-02-B1-01 linear voice coil stage features high speed, high acceleration/deceleration, zero backlash, smooth motion, precise positioning, high reliability, and low cost. The non-commutated stage is cleanroom friendly. The compact linear voice coil stage is 127.0 mm (5.000 in.) long × 50.8 mm (2.000 in.) wide × 54.0 mm (2.125 in) high. The travel length is 24.6 mm (0.97 in.) with a continuous force rating of 4.6 N (1.0 lbs.) and a peak force of 14.4 N (3.2 lbs.) at a 10 percent duty cycle.

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Magnetic Encoder

Novotechnik, U.S., Southborough, MA, has introduced a 44-turn magnetic encoder with IO-Link output interface. The MC-1 2800 uses patented nonvolatile technology that retains turn count even when power is lost, and it reports correct count when power is restored. Key specifications include measuring range of 15,840° (44 turns), measured variable information of angle, turns, speed, and limit switch points. Measurement rotational speed is from 0 to 546 rpm, resolution is 16-bits, absolute linearity is ≤ ±1°, and repeatability is ≤ ±0.1°. The series is available with push-on coupling or marked shaft.

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Vertical Elevator Stages

A series of motorized elevator stages has been released by Optimal Engineering Systems, Inc. (OES), Van Nuys, CA. The DAG8-60-01 and the DAG8-60-04 motorized elevator stages, driven by two-phase stepper motors, feature 3-μm positional accuracy and a resolution of 0.5 μm when driven with a 10 microsteps-per-step micro-stepping stepper motor driver. The laboratory-grade, high-resolution, compact, low-profile elevator stages feature 8 mm of vertical travel. The 60 60 mm table with a 4 kg load capacity has a pattern of threaded holes for tooling and fixtures. Maximum travel speed is 10 mm per second.

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Motorized Stages

PI Americas, Auburn, MA, has introduced several new families of motorized linear and rotary stages tailored for precision automation, motion control, and positioning applications. All product lines are powered by noncontact, 3-phase linear or torque motors and are equipped with integrated direct-measuring linear encoders. The V-141 compact linear stage family is available in travel ranges of 40, 60, and 100 mm. The V-571 ultra-high precision linear stage family features a body width of 95 mm and is available in four travel ranges from 25 to 100 mm. The V-827 wide-body linear stage family was designed for higher-load applications with travel ranges up to 1 m.

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