Category Archives: Air Bearing Stage

Motion Control – Hybrid Air Bearing XZ Positioning System from H2W Technologies!

Motion Control – Air Bearing Positioning System!

motion control linear motion stage

Santa Clarita, CA —– Motion Control – This hybrid air bearing XZ positioning system uses H2W air bearing linear stepper motor STS-1220-AP4T (horizontal axis) and voice coil positioning stage VCS05-060-LB-01-MH (vertical Z-axis). The horizontal Air Bearing Linear Stepper motor has a 38.0 in [965 mm] stroke and generates 12.0 lbs [53.1 N] of continuous force.

motion control - h2w logo

It is guided by precision roller bearings along the platen. Integral air bearings are used to maintain the required motor air gap. The vertical Z-axis motor has a 0.50 in [12.1mm] stroke; generates 6.0 lbs [26.7 N] of continuous force and 118.0 lbs [80.1 N] of peak force. The 1.0-micron resolution encoder allows for precise closed loop positioning.

Motion Control Air Bearing Stages from H2W Technologies

Motion Control – Air Bearing Stages
Motion Control Air Bearing Stage

Motion Control H2W

Santa Clarita – Motion Control Components – 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. 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.

               Advantages:

      • Excellent flatness and straightness specifications
      • Lowest velocity ripple
      • No wearing parts
      • Enclosed with bellows

      Applications:

      • Pick and Place
      • Vision Inspection
      • Parts transfer
      • Clean room
      Motion Control Air Bearing Stages can be ordered for any stroke up to 80 inches and any continuous force up to 24 lbs. The stages are built as the orders are placed, they are not stocked, as each customer requirement is different.

      For additional information contact Mark Wilson at H2W Technologies, 26380 Ferry Ct, 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

      H2W Logo
      Visit our Website
      You Tube
      Visit our Blog

 

See this and other Motion Control Components from H2W Technologies are also featured on:
http://MotionShop.com
http://AllMotionBlogger.com
http://MotionControlBlogger.com
http://motioncontrolBuyersGuide.com
http://MotionControlWeb.com
http://MotionShop.net

Automation – Dual Axis Linear Motion Stepper Motors!

H2W Technologies Dual Axis Air Bearing Stepper Stage

H2W Logo

Santa Clarita, CA — Automation – Linear Motion — H2W Technologies’ dual axis linear motion stepper motors are ideal for open loop positioning applications requiring 2 axis of motion in a single plane. They can perform at speeds of up to 80 in/sec [2 m/sec] and strokes of up to 20 in x 30 in [0.5 m x 0.75 m]. Linear stepper motors are capable of very precise position, velocity, and acceleration control when coupled with a micro-stepping drive and indexer.

The moving assembly called the “forcer” is supported by magnetically preloaded air bearings that are imbedded in the active surface of the forcer. The bearings are designed to support the customer’s payload and to maintain the required 0.0005 in to 0.0010 in [12 to 25 micron] gap between the platen and the forcer.

The step and direction signal for each linear motion axis comes from two separate micro-stepping drives (2 or 4 phase). A 2 axis indexer is required to send step and direction signals to the drivers. For 2 phase motors, the full step is 0.010 in [250 microns] and for 4 phase motors the full step is 0.005 in [125 microns]. With micro-stepping, resolutions in the order of 0.5 to 1 micron are achievable.

The dual axis linear stepper motor is a complete 2 axis, single plane air bearing positioning system with the motor, the bearings, and the positioning system all built into one compact package. Integrating linear encoders with the stepper motor allows for a hybrid, closed loop positioning system.

Advantages:

  • Low profile and small cross section
  • High Speed
  • No servo tuning required
  • Multiple forcers on a single platen

Applications:

  • Pick and Place
  • Wire bonders
  • Parts transfer
  • Fiber optic

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, 26380 Ferry Ct, 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

H2W Logo
Visit our Website
You Tube

Dual Axis Linear Steppers feature: Low Profile, Low Cost, and .00004” [1 micron] Microsteps!

H2W Dual Axis, Air Bearing, Linear Steppers

H2W Logo

Santa Clarita, CA — — Dual Axis Linear Steppers. — H2W Technologies Dual Axis Linear Stepper Motors are ideal for open loop positioning applications with light payloads. They can be used at speeds up to 80 in /sec [2m/sec] and strokes up to 40” x 60” [1 m x 1.5 m]. Linear stepper motors are capable of very precise position, velocity and acceleration control when coupled with a microstepping drive and indexer.

The moving assembly called the “forcer” is supported by magnetically preloaded air-bearings imbedded in the active surface of the forcer between the forcer and platen. The bearings are designed to support the customer’s payload and to maintain the required .001” [0.025 mm] gap between the platen and the forcer.

The two axis step and direction signal from a microstepping drive, to the 2 or 4 phase forcer is supplied via a power cable. The motion achieved with a full step is .010” [250 microns] and with a microstep it’s .00004” [1 micron].

The Dual Axis linear stepper motor is a complete positioning stage with the motor, the bearings and the positioning system all built into one compact package.

Integrating a linear encoder with the stepper motor provides a closed loop system.

Advantages:

  • Low profile and small cross section
  • High Speed
  • Low cost positioning stage solution
  • No servo tuning required
  • Multiple forcers on a single platen

Applications:

  • Pick and Place
  • Wire bonders
  • Parts transfer
  • Fiber optic

The Dual Axis Linear Stepper Motor consists of 2 main parts:

Moving Forcer Assembly: The forcer is made up of an aluminum housing that contains the motor windings, lamination stacks, and permanent magnets. The active surface of the lamination is slotted to form teeth with a pitch of .040″ [1 mm]. The ends of the coil are brought out to either a “D” connector or to flying leads. Mounting holes on the top surface of the forcer are for attaching the customer’s payload. The forcer comes in different widths and lengths, depending on the required force. Multiple forcers can be supplied with a single platen to allow for independent moving heads.

Platen: The platen is a precision ground steel plate that is slotted to form 0.02” x 0.02” [0.50x 0.50 mm] square teeth on the surface. The spaces between the platen teeth are filled with epoxy to provide a flat air-bearing surface for the forcer. The stroke of the forcer is a function of the length and width of the platen. Platens can be manufactured in different shapes with a multitude of mounting configurations.

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

H2W Logo
Visit our Website
Order Our Catalog
Other Products
You Tube

Linear Motion – High Precision, Granite Base, Air Bearing Positioning Stage for High End Positioning Applications!

H2W-Linear_Motion-Air-Bearing-Granite-Stage
H2W Logo
Travel
1 to 80 inches
[0.025 to 2m]
Velocity
0.1 to 240 inches/sec
[0.0025 to 6 m/s]
Acceleration
0.1 to 12 G’s
0.1 to 12 G’s
Peak Force
15 to 600 lbs
[66 to 2667 N]
Continuous Force
5 to 200 lbs
[22 to 889 N]
Resolution
0.000004″ to 0.0002″
[0.1 to 5 micron]

The AB 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. 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.

The AB stage comes standard with bellows (folded way covers) with a 12:1 extension to compression ratio.

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 DR 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 AB 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 AB 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.

Advantages:

  • Excellent flatness and straightness specifications
  • Lowest velocity ripple
  • No wearing parts
  • Enclosed with bellows
Applications:
  • Pick and Place
  • Vision Inspection
  • Parts transfer
  • Clean room
Operating Info:

 

Required Electronics:
The motor requires a 3 phase brushless amplifier with power supply, which is rated with sufficient current and voltage to meet the motion requirements. The inductance of the linear motor coil should be greater than the minimum load inductance of the servo amplifier. A programmable motion controller is required to close the position loop on the system.

 

Environmental Considerations:
The stage is a precision device with sensitive components, it should not be mounted in an environment that is wet or excessively dirty. The optical encoder scale is open and it should be kept free of debris in order to operate properly. The stationary magnetic assembly is highly magnetic, it should not be placed in an area where loose steel particles can be drawn into the magnetic gap. The stage must not be mounted in an environment with high ambient temperatures (>50ºC).

 

Mounting:
The stage should be mounted to flat and stiff surface. Counter bored thru holes are present in the stage to allow for the mounting of the stage to the customers system. The moving table assembly has threaded holes on the top surface for attaching the payload. The stage may be mounted in any orientation. When mounting the stage with the table moving vertical, it should be noted that the stage will be required to generate additional force due to gravity and that the stage will slide down to the bottom hard stop when power fails.

 

Maintenance:
The ball bearing guides in the stage should be periodically lubricated with the manufacturers recommended grease.

 

Ordering Info:

 

Stages can be ordered for any stroke up to 80 inches and any continuous force up to 24 lbs. The stages are built as the orders are placed, they are not stocked, as each customer requirement is different.

Model # ABS – AAA – BB – CCC – D
where:
AAA is the stroke in inches (30 inch stroke is -030)
BB is the width of the stage (7 inch width is -07)
CCC is continuous force in lbs (24 lbs is -024)
D is for special options

(i.e. ABS-030-07-024-0 is a 7″ wide AB stage with a 30″ stroke, 24 lbs of continuous force and no special options)

 

Specifications:

 

 

Flatness
±.0001” /ft
±8 micron / meter
Straightness
±.0001” /ft
±8 micron / meter
Accuracy*
±.0002” /ft
±16 micron / meter
Repeatability*
±.0001”
±2.5 micron
Load Capacity
22 lbs
10 Kg
Model # Stage Width Stage Height Table Length Continuous Force Peak Force
1 ABS-120-10-071-A 10 in


254 mm

30 in


762 mm

20 in


508 mm

71 lbs


316 N

213 lbs


948 N

2 ABS-XXX-10-025A 9.5 in


241 mm

5.60 in


142 mm

6.35 in


161 mm

25 lbs


111 N

80 lbs


356 N

3 ABS-XXX-10-036A 9.5 in


241 mm

5.6 in


142 mm

8.75 in


222 mm

36 lbs


160 N

120 lbs


533 N

4 ABS-XXX-10-047A 9.5 in


241 mm

5.6 in


142 mm

11.15 in


283 mm

47 lbs


209 N

160 lbs


711 N

5 ABS-XXX-10-059A 9.5 in


241 mm

5.6 in


142 mm

13.55 in


344 mm

59 lbs


262 N

200 lbs


889 N

6 ABS-XXX-10-071A 9.5 in


241 mm

5.60 in


142 mm

15.95 in


405 mm

71 lbs


316 N

240 lbs


1067 N

 

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: 888-702-0540, Fax: 661-251-2067, E-Mail: info@h2wtech.com or visit the website at http://www.h2wtech.com

H2W Logo
You Tube