Risers
Designed to raise a workpiece off the worktable for four-sided machining, all risers are made to fit your specific application needs. These risers are ideal to compensate for spindle clearance. If a plain-face console is not desired, the grid systems for our cube tombstones that are available include industry standard 2" grid, t-slots, and custom grids.
Key Features
- Grid holes, bushings, and inserts are available for both 1/2" and 5/8" systems
- Hardened, threaded inserts allow for clamping in every hole while offering quick and easy replacability
- Hardened, precision bushings are accurately located to ensure easy locating coupled with high wear resistance
- Replacement bushings and insert kits with an extraction tool are available upon request
CAD Downloads: CAD download is for a plain face tombstone, all measurements are in inches unless otherwise noted, all weights are in pounds and include base plate.
| 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” = ±.002, >18” = ±.003 |
| Tapped Holes (non accumulative) | ±.005 |
| Precision Bushing I.D. | +0.0013 / +0.0007 |
| Precision Bushing Concentricity | 0.0001 |
| Bored or Precision Bushing Hole to Adjacent Hole | ±.0005 |
| First Row Bushing Hole Location from Datums | ±.002 |
| 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) |