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Product Category
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Linear
Motors & Stages
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| Linear Motor Products |
Baldor provides industry with
the widest range of linear motors, linear stages
and controls. Being a leader in linear motor
design and manufacturing, Baldor continually
develops advanced products and innovations to
meet a variety of linear motion applications.
Linear motors provide unique speed and positioning performance advantages. Linear
motors provide direct-coupled motion and eliminate mechanical transmission devices.
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They offer substantial improvements
over applications using ball screws, timing belts, etc. The rugged mechanical
design provides accurate motion and precision positioning for hundreds of millions
of cycles. Baldor linear motors and stages are used in thousands of successful
applications worldwide.
Click here for an overview
of Baldor's full line of Servo / Motion solutions.
Linear motors provide the following advantages:
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High repeatability – resolution to 0.000004 inch (0.1 microns) – this
makes sure all parts produced are accurate and identical |
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Highly accurate – to 0.0001 inch/ft (2.5 micron/300 mm) – provides
precise machine operation for precision parts |
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No backlash – direct drive has no backlash such as with lead
screws, gears, etc. this improves the accuracy of the part or operation |
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Faster acceleration – from 1 to over 10 G’s – this
leads to shortened cycle times and improved productivity. |
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Higher velocities – speeds to over 300 inches/second (8 meters/sec) – to
position the payload faster |
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Long term reliability – only two parts with only one moving
part – this leads to simplicity and improves the applications
reliability |
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No wear or maintenance – no contacting parts, thus reducing
component friction and wear |
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Ease of installation – linear motors are designed to allow
for alignment tolerances. Misalignment produces no degradation of performance |
Linear motors consist of two parts – a
stationary track or “platen” and a moving “forcer”.
They can be provided as a stand-alone linear motor assembly or as a complete
stage – built with a housing or enclosure with linear bearings,
limit switches, cable track/carrier, protective bellows and linear encoder
in a wide variety of lengths.
Linear Motors
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Brushless Cog-Free – LMCF
series
Baldor’s cog-free brushless linear motor
is designed for unlimited travel servo applications
that also require extremely smooth operation
with no cogging. Modular track assemblies stack
end-to-end to provide the length of stroke required
for the application. These motors are supplied
in “kit” form to be easily integrated
into a machine. The LMCF series provides high
peak forces to 2300 N (517 lbs); speeds to 5
m/sec (200 inches/sec); and acceleration to 10
G’s. |
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Brushless Iron
Core – LMIC series
Baldor’s brushless Linear Motor Iron Core
motor is designed with advanced technology techniques
to minimize cogging, while improving dynamic
speed and force capability. The LMIC series has
been uniquely designed to providing smooth operation.
This series is available in two configurations,
a standard profile, and a low profile – for
those application requiring smaller, tighter
packages. It has unlimited travel utilizing modular
platens. LMIC provides high very peak forces
to 13,800 N (3100 lbs); speeds up to 8 m/sec
(320 inches/sec); and acceleration up to over
10 G’s. |
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HyCore - Hybrid Core Linear Motor
Baldor has redefined linear motors with a technological breakthrough. Baldor’s new HyCore™ motor combines the best features and performance of traditional high speed, high force, closed loop brushless linear servo motors, with the cost advantages of open loop linear stepper motor technology. HyCore™ includes benefits, which linear motors bring to an application: zero backlash; high efficiency; unlimited travel; fast velocities and high accelerations. |
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DC Brushed Linear
Servo Motor – LMBR
series
The brushed linear motor is designed for long stoke self-commutated servo applications.
The “platen” contains multiple coils (turns of wire) inserted into
insulated slots along with a commutator bar. The “forcer” features
multiple permanent magnets and brushes for commutation. It is used with pulse
width modulated (PWM) DC servo controls. The LMBR series provides high peak forces
of 1070N (171 lbs); speeds to 3.8 m/sec (75 in/sec); and acceleration to 5 G’s. |
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AC Linear Induction
Motors – LMAC
series
Baldor’s linear induction motor is designed
for extremely long travel applications such as
material handling and people movers. The linear
induction motor consists of a “primary” which
is a coil assembly, and a “reaction plate”.
When AC voltage is applied to the coil, a traveling
magnet field is created which induces current in
the reaction plate. The interaction of the two
magnetic fields generates the force and directs
linear motion. An adjustable frequency inverter
will provide velocity control of this linear induction
motor. The LMAC series provides very high peak
forces of 2224 N (500 lbs); speeds to 6.8 m/sec
(270 in/sec) and acceleration to 1 G. |
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Linear Stepper
Motor, Single Axis – LMSS
series
Baldor’s open loop linear stepper motor
provides the most economical linear motor positioning
package. The “forcer” consists of a
2 or 4 phase motor assembly encapsulated in an
aluminum housing supported by bearings. The “platen” consists
of photo-chemically etched teeth on a steel bar
available in lengths cut per customer specification.
The LMSS series provides forces to 220 N (50 lbs);
speeds to 1.5 – 2 m/sec (890 in/sec); acceleration
to 1 G. |
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Linear
Stepper Motor, Dual Axis – LMDS series
Baldor’s dual axis stepper package provides
open loop positioning along two axis of travel.
An integrated air bearing system floats the “forcer” less
than 25 micrometers (0.001 inch) above the photo-chemically
etched steel plate. Preload for the bearing system
is provide by the magnetic attractive force between
the forcer and the platen. The LMDS may be mounted
face up or inverted. A position verification system
is available to close the loop.
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Linear Stages
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Single Bearing Positioning Stage - LSS series
The single bearing positioning stage features
lightweight moving parts for higher acceleration
of light loads; it is designed for long-stroke
closed position loop servo applications. This stage
is built with a brushless cog-free linear motor
and includes a single rail, integral linear bearing,
linear encoder, limit switches and cable carrier. |
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Extruded Positioning
Stage – LSX series
This positioning stage features lightweight moving parts for high acceleration
of light loads; it is designed for long-stroke closed position loop servo applications.
The LSX series is built with a linear brushless iron core motor to provide higher
forces; it includes a modular aluminum construction with linear encoder, limit
switches, internal cable carrier, linear bearing and bellows.
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Enclosed Positioning
Stage – LSE series
The enclosed positioning stage provides high acceleration of heaver loads; it
is designed for applications with one or more axes. To provide a variety of forces,
the LSE is available with either brushless iron core, cog-free, brushed DC and
AC induction motors. The single axis stage includes linear bearing, linear encoder,
limit switches, cable carrier and bellows.
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Linear
X-Y-Z Gantry – LSG series
Baldor’s linear gantry stage is designed
to speed up and simplify the building of high
throughput, precision positioning systems. The
LSG provides a clean, very compact design compared
to conventional gantry systems base upon rotary
components and ballscrews; it is ideal for applications where space is at a
premium. Each axis feature brushless cog-free
motors.
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Other Linear Products
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Polynoid Linear Motor
The AC polynoid linear motor derives its name from the solenoid - it provides
strokes with constant force over a short limited distance. These are induction
motors, which consists of a copper clad “rod” and a “stator”.
Forces provided up to 240N (54 lbs). |
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Non-Commutated DC Linear Motor
The non-commutated linear motor provides strokes with constant force over a short
limited distance. These are DC linear motors available as either moving magnets
or moving coils. Peak forces provided up to 670 N (150 lbs).
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