Linear motors in kit form

We offer various families of ironless and ironcore linear motors in kit form (magnet track and coil unit). Our manufacturing partner Akribis is one of the largest linear motor manufacturers in the world and has been the market leader in Asia with its linear motors since 2016. The linear motors consist of motor coils and magnetic rails, and offer unparalleled advantages and features to improve system performance and efficiency:

  • high speed
  • high acceleration
  • no or very low cogging force
  • low operating noise
  • high stiffness
  • wear- and maintenance-free
  • long travel

We offer in our portfolio different sizes and types of linear motors in a force range from 3N to 16,000N, as well as different cooling options such as natural convection, air and water cooling. In the remainder of this page, you can find more information about the various families available.

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Series of ironless linear motors in kit form

AUM series: brushless, ironless linear motors

The AUM series belongs to the ironless linear motors. Due to the use of ironless technology, the linear motor does not generate any cogging force, and in combination with its low weight, optimal synchronization as well as highest dynamics are achieved.

Typical applications and industries for ironless linear motors are high precision axes in combination with air bearings for optical systems as well as dynamic equipment used for example in microelectronics.

Features:

  • No cogging (zero cogging)
  • Patented coil design for highest force density
  • Low intrinsic mass for highest dynamics
  • No magnetic attraction for interference effects
  • Peak forces from 11.9N to 16,200N
  • Continuous forces from 3.0N to 2,340N
  • Applicable up to 330VDC
  • High thrust force
  • High motor constant
  • High efficiency

Low energy consumption

Applicable to:

  • Point-to-point positioning at micrometer/nanometer level
  • High/low speed applications with high speed ripple or motion profile requirements
  • Precise force control

Application areas:

  • Handling, testing, inspection and assembly of Wafers/LCD/PV/Batteries
  • Laser processing machines
  • Measuring and testing machines
  • Digital printing equipment
  • Metrology equipment
  • machines for DNA sequencing
  • other (bio)medical equipment

Overview of the motor parameters of the AUM series

ModelTypeContinuous forcePeak forceDatasheet
AUM1ironless3N - 15N12N - 60N

 

 

AUM2ironless9N - 70N44N - 352N
AUM3ironless28N - 220N144N - 870N
AUM4ironless44N - 614N312N - 2500N
AUM5ironless98N - 1150N707N - 6370N
AUM6ironless780N - 3050N 5400N - 16200N
     

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ACR: curved, ironless linear motors

The ACR series belongs to the series of ironless linear motors. The technology of ironless linear motors is characterized by no cogging force and low intrinsic mass, which achieves optimum synchronization and maximum dynamics. Characteristic of the ACR series is the curved design, it can be assembled either as a limited angle or 360° movement. Typical applications are rotary table applications with very low overall height and large hollow shaft.

Features:

  • No cogging force (zero cogging).
  • High force density
  • Low weight for highest dynamics
  • Large hollow shaft
  • High speed for low cycle time
  • Very flat design
  • Configurable angle of rotation by attaching several magnetic tracks
  • Flexible combination of several motors and magnetic tracks
  • Applicable up to 330VDC

Applicable to:

  • Point-to-point positioning at micrometer/nanometer level.
  • High/low speed applications with high speed ripple or motion profile requirements

Application areas:

  • Handling, testing, inspection and assembly of
  • Wafers/LCD/PV/Batteries
  • Metrology equipment
  • Laser processing machines
  • Measuring and testing machines
  • Digital printing equipment
  • other (bio)medical devices

Overview of the motor parameters of the ACR series

ModelTypePower Radius [mm]Height [mm]Coil AngelContinous
Torque (at 100°C) [Nm]
Peak
Torque [Nm]
Datasheet

ACR1525-S5

ironless,
frameless

15250

38,8

18,52°

460,71382,2

 

 

ACR240-S5

ironless,
frameless

240

3373°24,372,8

ACR335-S5

ironless,
frameless

335

29,690,4°92,3276,9

ACR820-S5

ironless,
frameless

820

3840,4°331,5994,5
        

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Servo control of linear motors for nanometer positioning

When control engineers contemplate difficult tasks such as micrometre / nanometre positioning, as well as aiming for speed stability at very low speeds, they usually think about several key success factors.

Firstly, eliminating cogging force or cogging torque. This is easily achieved by using ironless motors such as the ones shown on this page. In addition, it is well known that a high-resolution linear encoder system is required. This could be an optical encoder system, such as the ones shown at this link. Finally, they consider the type of servodrive which should be used. Most servodrives use pulse-width modulation of the supply voltage to achieve the required current in the motor windings. However, this leads to current ripple, which in turn produces force ripple (force produced by linear motors is proportional to current). The force ripple makes it impossible to achieve high-precision servo tasks. The solution is to use a non-switching servodrive, also known as a linear amplifier. The MACCON Family of non-switching servodrives can be found at this link.

With the following success factors in place:

  • Ironless motor
  • High-resolution optical encoder
  • Non-switching servodrive (linear amplifier)

we can now look at the remaining puzzle pieces. Of course, we should never forget the issue of cables. High-quality motor and feedback cables which are properly shielded against electromagnetic interference are a must. Last but not least, we need an experienced commissioning engineer to get the described system working. MACCON has a core team of experienced engineers who have supported machine-builders in semiconductors and optics / photonics to achieve the most difficult of nanometre positioning and low-speed motion tasks.