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The ECO linear stage series builds upon Aerotech’s long tradition of producing low total-cost-of-ownership motion designs. Excellent positioning specifications, high stiffness and a variety of options and features combined with economic pricing make ECO stages a suitable choice for applications where robust motion performance is needed.
Long-life precision recirculating linear bearings, along with Aerotech’s machining and assembly craftsmanship, enable the best geometric performance per unit price on the market today, according to the company. Unlike other low-cost competitive motion stages, ECO stages can be integrated into complex machines with the assurance they will perform at a high level and outlast other machine components.
The ECO-LM series direct-drive linear motor stages are optimized with high precision, noncontact linear encoders. The precision noncontact encoders enable minimum incremental motion to 10 nm with micrometer-level repeatability. The optional HALAR factory calibration improves positioning accuracy to ±1.5 µm. The ironless forcer coil provides high force with zero cogging for smooth velocity and position control, ideal for applications requiring outstanding contour accuracy and smooth velocity profiling. The linear motor has zero backlash, no windup, zero friction, and excellent dynamic responsiveness. ECO-LM stages are available in 17 different models with travels ranging from 100 mm to 800 mm and speeds up to 2 m/s. Configurable cable management solutions are available for single and multiple-axis systems as standard options.
For even more cost-sensitive applications, the ECO-SL series includes several NEMA 23 stepper motor and brushless servomotor options. The ECO-SL series is designed with many standard features and options that make the design adaptable to specific applications. Several encoder options provide electrical resolutions ranging from 0.5 µm down to sub-nm. A holding brake can be added for vertical applications. A motor fold-back kit is available for space-constrained applications to reduce the overall stage length. ECO-SL stages are available in 27 different models with travels ranging from 50 mm to 800 mm and speeds up to 300 mm/s.
Related Glossary Terms
- backlash
backlash
Reaction in dynamic motion systems where potential energy that was created while the object was in motion is released when the object stops. Release of this potential energy or inertia causes the device to quickly snap backward relative to the last direction of motion. Backlash can cause a system’s final resting position to be different from what was intended and from where the control system intended to stop the device.
- calibration
calibration
Checking measuring instruments and devices against a master set to ensure that, over time, they have remained dimensionally stable and nominally accurate.
- linear motor
linear motor
Functionally the same as a rotary motor in a machine tool, a linear motor can be thought of as a standard permanent-magnet, rotary-style motor slit axially to the center and then peeled back and laid flat. The major advantage of using a linear motor to drive the axis motion is that it eliminates the inefficiency and mechanical variance caused by the ballscrew assembly system used in most CNC machines.
- profiling
profiling
Machining vertical edges of workpieces having irregular contours; normally performed with an endmill in a vertical spindle on a milling machine or with a profiler, following a pattern. See mill, milling machine.
- stiffness
stiffness
1. Ability of a material or part to resist elastic deflection. 2. The rate of stress with respect to strain; the greater the stress required to produce a given strain, the stiffer the material is said to be. See dynamic stiffness; static stiffness.
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