Machining & Configurations for Tooling Columns
AMROK® tombstones, tooling columns, and plates are manufactured to the highest precision and quality standards with our precision tolerances.
- Inserts allow positioning and clamping in every hole with co-axial positioned bushings.
- Assures high wear resistance and replaceability with hardened precision bushings.
- Replacement bushings and insert kits with an extraction tool are offered if needed.
| Tolerance | Precision |
|---|---|
| Flatness (tombstones & plates) | .0005 / 12x12 |
| Parallelism (plates) | .0005 / 12 Max .002 total |
| Perpendicularity | .0008 / 12 Min .001, Max .002/48 |
| Surface Finish | 63 RMS |
| Face Thickness | ≤18” = ±.001, >18” = ±.002 |
| Tapped Holes (non accumulative) | ±.005 |
| Precision Bushing I.D. | -0 / +.0006 |
| Precision Bushing Concentricity | 0.0001 |
| Bored or Precision Bushing Hole to Adjacent Hole | ±.0005 |
| First Row Bushing Hole Location from Datums | ±.001, ±.002 (Epoxy Mineral tombstones) |
| Bored or Precision Bushing Hole Spacing (non accumulative) | 0-10 ±.0005, 10-20 ±.0008, 20-30 ±.0010, 30-40 ±.0012 (for aluminum, add 50% to these tolerances) |
Machining Options
Grid
Plain Face
T-Slot
Custom
Tolerance & Machining Options
Grid
For maximum flexibility, choose a precision grid. AMROK® grids are typically machined to the industry standard 2-inch spacing, but custom spacing is available upon request. Alpha-numeric labeling makes it easy to relocate fixturing components on the grid. Each hole features a hardened threaded insert beneath a precision bushing and can be used for both locating and mounting.
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Plain Face
For customers who prefer to machine the mounting and locating holes themselves, plain face AMROK® Tombstones are available with machined faces manufactured to precision tolerances for parallelism and perpendicularity within the tooling column.
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Custom
Have a custom requirement? AMROK® tombstones can be customized to individual specifications.
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