BiSlide® Vacuum Modifications
Stages for use in vacuum environments can be customized with special materials, coatings, and seals to ensure compatibility with low-pressure conditions and minimize outgassing
Velmex BiSlide® Products in Vacuum Environments
Basic low-level vacuum prep would entail degreasing, addition of blind holes and using a vacuum-compatible grease. Higher-level vacuum preparation could involve the basic prep, plus possible material substitutions and other modifications to the stage.
Please talk to a Velmex Application Engineer, if you have a vacuum or other special environment application. To create vacuum-capable or special application Velmex UniSlide®, BiSlide® or XSlide™ Assemblies, we need to know the vacuum TORR rating, your outgassing tolerance and the environment that the slide will be subjected to.
| BiSlide® Assembly Material Substitutions and Modifications | |||
|---|---|---|---|
| Component | Standard Material | Substitute Material | Modification, if any |
Drive nut | PET Polymer | None | |
Bearing pads | Rulon 123 bonded with adhesive | Rulon bonded with epoxy | Use 3M 2290 Epoxy. GSFC3495 |
Lubrication on lead screw and ways | Silicone oil |
| Omit all oils |
Blind Holes | Standard fasteners |
| Add bleeder holes. Use vented screws. |
Limit switches | PVC insulated wire, plastic cable clamps, glue, plastic switch | Check with Application Engineer on potential substitutions | Omit |
Thrust bearings | Pre-greased needle bearings | Vacuum compatiable grease | Degrease & grease with vacuum compatible lubricant |
Surface finish | Black Anodized | Electroless Nickel | Replace with raw aluminum |
Motor | Standard motors offered | Vacuum compatible motors. (Purchase by customer) | None |
