Moticont - Motion Control Tips

Direct-drive, high-resolution electric cylinders with integrated encoder

January 18, 2019 By Miles Budimir Leave a Comment

The SDLM-025-070-01-01 and SDLM-025-070-01-05 direct drive linear motors from Moticont, also known as electric cylinders, have built-in encoders, and feature high acceleration, high speed, high resolution, zero backlash, and zero cogging. These compact direct-drive linear motors with quiet linear plain bearings are just 1.00 in. (25.4 mm) in diameter and 2.75 in. (69.9 mm) long. Protected inside the motor housings are linear optical quadrature encoders that directly connect to the non-rotating shaft for the greatest possible accuracy.

Select only the degree of precision your application requires as the SDLM-025-070-01-01 has a resolution of 1.25 microns and the SDLM-025-070-01-05 has a resolution of 5.0 microns with a 10% savings in cost.

Each of these direct-drive linear motors has a stroke length of 0.500 in. (12.7 mm) and a continuous force rating of 22.2 oz (5.9 N) and peak force of 67.2 oz (18.7 N). Non-commutated, they feature direct coupling of the load or stage which eliminates backlash and allows for high acceleration/deceleration. Both ends of the motor and shaft ends are drilled and tapped for easy integration into new and existing applications. Some common applications include assembly, manufacturing, sorting, semiconductor handling, inspection, medical equipment and procedure tables, antenna positioning, dampers, door & valve actuators, agricultural equipment, and adjustable office furniture.

Inexpensive alternatives to hydraulic and pneumatic systems, these direct-drive linear actuators or electric cylinders are also available as a complete plug-and-play linear motion system with matching motion controllers.

For more information, visit www.moticont.com.

Voice coil motor with internal shaft and bearing features high force-to-size ratio

December 26, 2018 By Miles Budimir Leave a Comment

Moticont’s GVCM-051-025-01 Linear Voice Coil Motor features high acceleration/deceleration, high speed, high reliability, zero backlash, high accuracy, high repeatability, and a 0.5 in. (12.7 mm) stroke length. Also referred to as an electric cylinder, this linear actuator is a low cost, high accuracy replacement for hydraulic and pneumatic linear actuators. This clean, compact, voice coil motor has a high force to size ratio with 5.3 lb (23.5 N) continuous force and 16.7 lb (74.4 N) of peak force at 10% duty cycle with a housing measuring just 2.00 in. (50.8 mm) dia. x 1.00 in. (25.4 mm) long.

The precision ground 0.1572 in. (3.993 mm) diameter shaft has an internal thread, and the housing has threaded mounting holes on each end for easy integration into current and future applications. This clean, quiet, efficient, low inertia, brushless actuator featuring an internal shaft and recirculating ball bearing is suitable for: medical devices, antenna positioning, testing, sorting, assembly equipment, work holding and clamping, scanners and laser-beam steering and filtering, laser machining and drilling, wafer handling, optical focusing, and dynamic vibration absorption, among others. Moticont’s GVCM-051-025-01 linear voice coil motor can also be ordered as a complete plug-and-play system including a position sensor and controller.

Is there a need for a smaller or larger diameter motor, one with longer stroke, or more force? There are currently seven series of Moticont’s GVCM motors based on diameter of the motor, and models based on length of stroke and/or force to select from with additional motors being added to select from.

To find out more, visit www.moticont.com.

Low inertia, high precision, hollow core voice coil motor

August 17, 2018 By Paul Heney Leave a Comment

A low inertia hollow core voice coil or moving coil linear motor from Moticont, the HVCM-051-025-019-01, features high acceleration, precise positioning to less than one micron (0.00004 in.), high reliability, and low cost. This cleanroom friendly, non-commutated motor is available off-the-shelf. The HVCM-051-025-019-01 hollow core voice coil linear motor has an open apertures of 0.750 in. (19.05 mm). The hollow core allows for optics, illumination, laser beams, or cables to pass through.

With a 0.50 in. (12.7 mm) stroke length, a continuous force rating of 4.8 lbs (21.3 N) and a peak force of 15.15 lbs (67.4 N) at a 10% duty cycle, this compact voice coil motor measuring just 2.000 in. (50.8 mm) dia. X 1.00 in. (25.4 mm) housing length, is suitable for applications such as: Positioning, medical diagnostics and testing, laser beam steering, dynamic vibration absorption, optical focusing, laser cutting & welding, scanning, assembly, and wafer handling.

Two 10-32 UNF-2B x 0.25 in. (6.4 mm) deep threaded mounting holes on 1.000 in. (25.4 mm) centers in the housing and coil makes for flexible and easy integration into new and existing applications. Low inertia, high acceleration, high speed, and zero cogging are benefits of this moving coil or voice coil linear motor. When used in closed loop applications with an optional position sensor, resolutions of less then 1 micron are achievable for millions of cycles. If a longer stroke, higher force, a smaller foot print, or customized mounting is required consult Moticont’s team of engineers. All of Moticont’s voice coil motors are available as complete plug-and-play systems, including, position sensor, controller, amplifier, power supply, and if required with a linear slide.

Moticont
www.moticont.com

Miniature voice coil motor with high force-to-size ratio

March 1, 2018 By Mike Santora Leave a Comment

Smaller in diameter than a United States quarter, the miniature Linear Voice Coil Motor, LVCM-019-016-02, from Moticont has a high force-to-size ratio. It produces 8.9 oz. (2.5 N) of continuous force and 28.0 oz. (7.8 N) of peak force in a compact 0.750-in. (19.1 mm) diameter x 0.94-in. (23.8 mm) long envelope (at mid-stroke). This high-speed motor has zero cogging and features high accuracy, and high repeatability to less than1 μm (0.00004-in.) when operated in a closed loop as a DC servo motor. This clean, quiet, efficient, low inertia, high acceleration, miniature voice coil motor is suitable for applications such as: Pick-and-place, testing, laser steering, laser speckle reduction, mirror positioning, scanning, oscillation, switching, and handheld medical, dental, or industrial applications.

The miniature LVCM-019-016-02 linear voice coil motor has a stroke length of 0.25-in. (6.4 mm). and is easily added to new or existing applications using the precision drilled and tapped 8-32 UNC-2B mounting holes. Other smaller and larger models, as well as custom designs, are available. The LVCM-019-016-02 linear voice coil motor can be ordered as a complete plug-and-play system including an encoder and controller.

Moticont
www.moticont.com

Moticont adds servo actuator to SDLM Series

July 28, 2017 By Paul Heney Leave a Comment

The new SDLM-019-070-01-01 direct drive linear motor is the latest addition to the series of zero backlash, zero cogging, high acceleration, high speed, high resolution, long life linear servo motors from Moticont. Also known as an electric cylinder, this compact direct drive linear motor is just 0.75 in. (19.1 mm) in diameter and 2.75 in (69.9 mm) long. Protected inside the motor housing, the linear optical quadrature encoder is directly connected to the shaft for the greatest possible accuracy. This direct drive linear motor features 1.25 µm (0.000049 in.) in of resolution.

The SDLM-019-070-01-01 direct drive linear motor has a stroke length of 0.500 in. (12.7 mm) and a continuous force rating of 9.7 oz. (2.7 N) and peak force of 30.7 oz (8.5 N). This non-commutated direct drive servo motor features: Quiet long life plain linear bearings, an integrated internal (1.25 micron resolution) quadrature optical encoder with differential outputs, and a non-rotating shaft. Some applications include: Manufacturing (assembly and inspection equipment), sorting and packaging, semiconductor handling, medical equipment and instruments, antenna positioning, dampers and valve actuators.

Direct coupling of the load or stage to the low inertia non-rotating shaft eliminates backlash and allows for high acceleration/deceleration. Both ends of the motor and shaft ends have threaded mounting holes for easy integration into new and existing applications. The SDLM-019-070-01-01 Direct Drive Linear Actuator is also available as a complete plug-and-play linear motion system with a matching motion controller.

Moticont
www.moticont.com