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Understanding X, XY Linear Stage Specifications
Specifications | Description | |
Model Number | YM07A-S3-CL | 1. Kohzu's significant alpha-numeric model numbers offer quick product insight. |
Mirror Model Number | YM07A-S3-RRR-CL | 2. Mirror symmetry of standard stage... see pages 23~28 for various configurations and their specific model number extensions. |
Table Size | 70mm | 3. Table size refers to the stage's upper-most mounting surface. |
Guide Mechanism | Cross-Roller Bearing | 4. Type of guide mechanism used on this stage. |
Motion Range | Coarse 13mm | 5. Stage travel range in the positive and negative directions from it's centered or neutral position. Differential actuator types will indicate total coarse and fine travel ranges respectively. |
Straightness | ≦2μm / 13mm | 6. Straightness is measured relative to mounting surface. |
Minimum Readout | Fine 0.5μm | 7. Minimum readout is the smallest measurable actuator motion increment. |
Load Capacity (Horizontal) | 5.5kg | 8. Maximum load capacity is for a horizontally orientated stage with load centered on top-plate. |
Moment Load Stiffness | 2 arcsec / kgf-cm | 9. Moment load stiffness is measured in a direction perpendicular to the motion axis. |
Material | Aluminum Alloy | 10. Material specification is for stage's main body components only. |
Finish | Clear-Matte Anodizing | 11. Surface finish type and color. |
Weight | 930g | 12. Stage weight includes all components depicted in product photograph. |
Perpendicularity | ≦20μm / 13mm | 13. Perpendicularity (or orthogonality) between motion axes in a dual-axis XY stage assembly. |
Actuator | Fine Pitch Positioner | 14. Actuator model number and travel range. |
Guide Mechanism Type
Cross-Roller Bearing Guides
In cross-roller bearing guides,,, quench hardened and precision ground bearing surfaces move upon loose hardened steel cylinders (rollers) with rotation axes oriented in alternating 90 degree angles. Having rollers arranged in an alternating cross pattern allows preloading and operation at any angle. The roller bearings are held apart from one another by a bearing cage, which prevents adjacent rollers from touching. Since cross-roller bearings have little difference between static and dynamic friction they minimize start-to-stop slip-motion typical of other bearing types. The line contact of roller bearings along with precise roller-to-race gap management provide larger loadbearing surfaces, higher preloads and meet very tight runout and stiffness specifications.
Standard & Mirror Symmetry Configurations
Micrometer and clamp position can be customized to meet specific application requirements at no additional cost.
Assembling multiple stages can be customized to meet specific application requirements at no additional cost.
Model Number | Lower Axis Stage | Upper Axis Stage | Assembly Configuration |
-NNN (no mark) | Standard (Right Hand) | Standard (Right Hand) | Standard Assembly |
-NNR | Standard (Right Hand) | Standard (Right Hand) | Reversed Assembly |
-NRN | Standard (Right Hand) | Mirror Symmetry (Left Hand) | Standard Assembly |
-NRR | Standard (Right Hand) | Mirror Symmetry (Left Hand) | Reversed Assembly |
-RNN | Mirror Symmetry (Left Hand) | Standard (Right Hand) | Standard Assembly |
-RNR | Mirror Symmetry (Left Hand)） | Standard (Right Hand) | Reversed Assembly |
-RRN | Mirror Symmetry (Left Hand) | Mirror Symmetry (Left Hand) | Standard Assembly |
-RRR | Mirror Symmetry (Left Hand) | Mirror Symmetry (Left Hand) | Reversed Assembly |
Bracket Type Vertical Linear Stage
The bracket type vertical linear stage has an X-axis stage customized to a stand type.
Typically, to suppress any influence from the stage top face, the feed mechanism is mounted on the stage bottom plate. If the stand type is used with this mounting configuration, a load is applied along the spring extension of the stage and the stage height may drop due to gravity (as shown in the left part in the right figure). Consequently, when mounting the stage along the vertical axis as with the bracket type Z stage actuator, mounting position must be modified so that force is always applied to the tip of the micrometer head (see the right part in the right figure).
List of bracket type vertical linear stage
Table size | Motion Range | Load Capacity (kgf) | Model number |
50mm | ± 6.5mm | 3 | ZM05A-X1 |
70mm | ± 6.5mm | 3 | ZM07A-X1 |
100mm | ±12.5mm | 4 | ZM10A-X1 |
