Positioning stage FAQ (Technical Information)

Do you have work distance data for 2-axis combination swivel stages? Is two-axis alignment possible?

For our standard catalog products, we guarantee values within the specifications and do not have any specific data. However, we can issue measured data for a fee.
Two-axis alignment is possible within 5/100 mm (this also requires an additional fee).

Are near ORG (NORG) and ORG the same thing?

Our origin detection method uses near ORG (NORG) or NORG&ORG.
NORG directly detects the table position, while ORG detects the motor shaft rotation.
In the case of the NORG&ORG detection method, the stage origin is set at the point where the first ORG slit is detected after detecting NORG.
By using both signals, fine origin adjustment within one motor rotation is possible. (Please also refer to the page on the origin return function.)

Is it possible to use the stage end (CW/CCW) as the origin?

Yes, it is possible. Our controller has a mode for this purpose. For details, please refer to the “origin return method” in the manual of your controller.

I am performing homing, but the origin position from the CW direction and the CCW direction do not match.
Is the sensor faulty, or is this an adjustment issue?

When the origin sensor is detected from the CW side and from the CCW side, a discrepancy occurs equal to the sensor's width.
We adjust the stage so that, at the time of shipment, detecting the origin from the CCW side will center the stroke. (Please also refer to the homing function page.)

Is it possible to change the motor on a motorized stage?

All of our standard products come with stepping motors as standard.
However, we can change to a motor of your choice (with brake, geared, servo, etc.) for an additional fee.

What is the difference between the ground screw type and the ball screw type?

If you require fine resolution, we recommend the ground screw type. If you require speed and durability, we recommend the ball screw type.
For Z-axis applications, we also recommend the ground screw type to prevent dropping.
Generally, ground screws are used in experimental equipment, whereas ball screws are used in production equipment.

What is the difference between steel stages and aluminum stages?

The rigidity of an iron stage is three times greater than that of an aluminum stage, so an iron stage is more rigid under point loads than an aluminum stage (it is also more rigid under moment loads).
Also, aluminum has a smaller moment of inertia than steel, whichallows for faster drive speeds.
The only material differences are in the upper table and lower base ofthe main body.

Is it possible to use this in a clean room?

By replacing the lubricant with cling grease (NSK LG2), it is possible to reduce particle generation.
You can order a cling grease specification by adding “-C” after the standard stage model.
Note: Cling grease does not guarantee any specific level of cleanliness.

How can I improve the positioning accuracy of a motorized stage?

Stepping motors typically use open-loop control, but by adding a scale, you can switch to a fully closed-loop system.
This modification requires changes to the stage, so please contact our sales department.

Is it possible to achieve even higher-precision positioning?

In addition to our standard products, we have experience manufacturing custom stages with ultra-high precision and ultra-high rigidity to meet customer requirements.
We can also perform additional processing on standard products (additional fees apply). Please feel free to contact our sales department.

Is it possible to manufacture old (discontinued) models?

We can produce them as a special order. Please contact us for lead times and pricing.

Frequently Asked Questions