Category Archives: Air Bearing Stage

Motion Control Air Bearing Stages from H2W Technologies

Motion Control Air Bearing Stage
Motion Control Air Bearing Stage

The ABS positioning stage is a high precision, granite base, air bearing positioning stage for high end positioning applications. It is driven by an ironless core, non-cogging 3 phase brushless linear motor and guided by 5 flat magnetically preloaded air bearings floating on a granite base. The ironless core coil assembly is used as the drive mechanism for the AB stage because of its smooth, non-cogging operation. The lightweight of the coil and table assembly allows for high acceleration of light loads. The air bearings, which are used for supporting and guiding the payload, float on a cushion of air.

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This ensures that there are no wearing components in the system. The air bearings are not limited to acceleration limits like their mechanical counterparts where balls and rollers can slide instead of roll at high accelerations. The stiff cross section of the granite base of the stage ensures a flat straight stable platform for the payload to ride on and does not require any special mounting considerations. Bellows (folded way covers) with a 12:1 extension to compression ratio may be added to an ABS stage. The power for the moving 3 phase coil assembly, encoder and limit switches is routed through shielded flat ribbon cable. Special consideration was made to separate the power and signal cables from each other to reduce the effects of noise on the system.

The power cable for the coil assembly and a vacant cable for the customers payload power usage are installed on one side of the stage and the encoder signal, limit switch and an additional vacant signal cable for the customers payload signal usage is provided on the other side of the stage. Standard connectors are provided. The ABS positioning stage incorporates the latest in linear motion technology:

  • Motors: Non-contact 3 Phase Brushless Linear Motor, Ironless Core, commutated either sinusoidally or trapezoidally with Hall Effects. The encapsulated coil assembly moves and the multi pole permanent magnet assembly is stationary. The lightweight coil assembly allows for higher acceleration of light payloads.
  • Bearings: Linear guidance is achieved by using magnetically preloaded, porous carbon or ceramic air bearings; 3 on the top surface and 2 on the side surface. The bearings are mounted on spherical surfaces. Clean, dry filtered air must be supplied to the moving table of the ABS stage.
  • Encoders: Non-contact glass or metal scale optical linear encoders with a reference mark for homing. Multiple reference marks are available and are spaced every 50 mm down the length of the scale. Typical encoder output is A and B square wave signals but sinusoidal output is available as an option
  • Limit Switches: End of travel limit switches are included at both ends of the stroke. The switches can be either active high (5V to 24V) or active low. The switches can be used to shut down the amplifier or to signal the controller that an error has occurred. The limit switches are typically an integral part of the encoder, but can be mounted separately if required.
  • Cable Carriers: Cable guidance is achieved by using flat, shielded ribbon cable. Two additional unused shielded flat ribbon cables are supplied for customer usage with the stage. The 2 power cables for the stage and customer payload are installed on one side of the stage and the 2 signal cables for encoder, limit switch and customer payload are installed separately on the of the stage.
  • Bellows: The ABS comes standard with neoprene / nylon bellows with Mylar stiffeners.
  • Hard Stops: Hard stops are incorporated into the ends of the stage to prevent over travel damage in the event of servo system failure.

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Motion Control – High Force Air Bearing XY Voice Coil Positioning Stage

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H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.

Other linear motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.

For additional information contact Mark Wilson at H2W Technologies, 26380 Ferry Ct, Santa Clarita, CA 91350; Tel:888-702-0540, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com

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Motion Control – High Force Air Bearing XY Voice Coil Positioning Stage!

Linear Motion High Force Moving Magnet Voice Coil Stage

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Santa Clarita, CA —– Linear Motion control – H2W introduces its latest custom XY voice coil positioning stage (VCS08-700-08/350-AB-01-MC-XY) which is guided by precision air bearings. This minimizes the amount of friction and reduces the pitch, yaw, and roll in the system. The stage is driven by three NCC series moving coil type linear actuators which are guided by parallel air bearing shafts. It is operated under closed loop position control. This system was designed specifically for an accelerometer testing application.

It includes a 1 micron resolution linear encoder on each linear motion control axis and is ideal for high force low velocity ripple positioning applications. Each voice coil has a 0.80 in [20.3 mm] stroke; generate 35 lbs [159 N] of continuous force and 105 lbs [477 N] of peak force, or a combined 70 lbs [318 N] continuous force and 210 lbs [953 N] of peak force on the bottom axis. Voice coil positioning stages are ideal for applications that require quick, short moves with fast settling times.

Bottom Axis – Dual NCC08-34-350-2X Motors

Top Axis – Single NCC08-34-350-2X Motor

Features:

  • Non-contact air bearing (air bushing)
  • Frictionless linear motion
  • No wearing parts
  • Low velocity ripple
  • High force
  • High acceleration
  • 2 axis motion control
  • Custom strokes, forces, and feedback resolution configurations available

See Also:

Youtube: http://youtu.be/LGrSUn-7XIY

News Article: http://www.h2wtech.com/News/Show?articleid=3050

Product: http://www.h2wtech.com/Products/ShowProduct?productid=5350

H2W Technologies, Inc. is dedicated to the design and manufacture of linear motion control and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.

Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

With over 75 years combined experience in the linear motion and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.

For additional information contact Mark Wilson at H2W Technologies, 26470 Ruether Avenue #102, Santa Clarita, CA 91350; Tel: , Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com

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Linear Motion Air Bearing Positioning Stage from H2W Technologies!

H2W Linear Motion Control Air Bearing Stage

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Santa Clarita, CA —– H2W introduces its latest high precision Linear Motion Air Bearing Positioning Stage (ABS-012-12-030-X). The ABS series stage incorporates five magnetically preloaded air bearings for both load carrying and lateral guidance. The base of stage is constructed using a lapped granite surface plate and the lateral guidance is controlled by a granite straight edge that is mounted to the base.

The non-contact 3 phase brushless linear motor operates in conjunction with a high resolution linear encoder for closed loop operation. The ironless core coil assembly has no magnetic attractive force to the stationary magnet assembly, and as a result it does not induce any cogging into the system. The lower moving mass of the stage allows for much higher accelerations of light payloads.

The stage has a stroke of 12 in [300 mm]; generates 20 lbs [89 N] of continuous force and 60 lbs [267 N] of peak force. It includes a 1 micron resolution linear encoder.

H2W’s line of air bearing positioning stages are ideal for high precision applications requiring extremely flat and straight, non-contact motion.

Features:

  • – Non-contact air bearing operation
  • – Excellent flatness and straightness specifications
  • – Lowest velocity ripple
  • – No wearing parts
  • – Custom strokes and force configurations available

Youtube: http://youtu.be/rRZUxV90nGQ

H2W Technologies, Inc. is dedicated to the design and manufacture of linear and rotary motion products that are used in the motion control industry. The complete line of linear electric motors includes: Single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Also offered is a complete line of ball screw, lead screw and belt driven positioning stages.

Other motion control products include: Limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for fail-safe, zero power braking for baggage handling and people moving applications as well as amusement park rides.

With over 75 years combined experience in the linear and rotary motion field, the H2W Technologies team of engineers offers the optimal solution to the most demanding motion control, requirements.

For additional information contact Mark Wilson at H2W Technologies, 26470 Ruether Avenue #102, Santa Clarita, CA 91350; Tel: 888-702-0540888-702-0540, Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com

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Linear Motion – 2 Phase Air Bearing Linear Motor Stage from H2W Technologies!

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Valencia, CA — Easily integrated, low cost, high performance, airbearing 2-phase brushless linear motor stages from H2W Technologies can to improve the performance of an existing motion control system or create a new high speed, high accuracy system. These, compact, linear stages feature;

• Precise, closed loop position and velocity control

• More cost effective that traditional 3 phase brushless linear motor stages

• Much higher accelerations that a standard open loop linear stepper motor

• 10 lbs [44 N] of continuous Force

• 1” (25 mm) to 144” (3.65 m) of travel

• 0.01 in /sec [.25 mm /sec] to at 80 in/sec [2 m/sec.] velocities

• 1 micron resolution standard

• 1• Smooth quiet operation

They are the ideal choice for any of the following: New and existing gantry robots, pick-and-place systems, wire bonders, parts transfer, fiber optic, semiconductor, medical, and other precision robotic applications

These stages are capable of very precise position, velocity and acceleration control when integrated with the matched programmable motion controller/ 2 phase servo amplifier. Ideal for closed loop positioning applications with light payloadsThese single axis linear steppers incorporate a 2 phase brushless motor, air bearings, side guide bearings, and platen [track] integrated into a compact, low-profile, package. The forcer connects to a motion control system via flying leads or “D” connector. Multiple forcers can operate on a single platen at the same time. 2 Phase brushless linear stages can also be custom designed to meet a particular application’s requirements. Complete motion control packages including a motion controller, and driver for closed loop brushless servo motor operation are available from H2W Technologies

We offer a complete line of linear electric motors including; single and dual axis linear steppers, DC brush and brushless linear motors, voice coil actuators, and AC induction motors. Other motion control products include; limited angle torque motors for compact, limited angular excursion rotary servo applications, 3 phase brushless rotary servo motors with matching digital servo amplifiers and permanent magnet linear brakes for failsafe, zero power braking for baggage handling and people moving applications as well as amusement park rides. H2W also offers design services for various types of electromagnetic devices such as magnetic latches, solenoids and rotary motion devices.

For additional information contact Mark Wilson at H2W Technologies, 26470 Ruether Avenue #102, Santa Clarita, CA 91350; Tel: 888-702-0540, Fax: 661-251-2067, E-Mail:info@h2wtech.com or visit the website at http://www.h2wtech.com for additional Linear Motion Control Components

Or For Still Additional New, Linear Motion Control Components from H2W Technologies, go to: http://www.motionshop.com/CompanyPRPages/H2W-Tech.shtml