Octagon Cnc Tombstones

At Hidrofix, we manufacture CNC horizontal machining towers in the desired sizes and dimensions for every model of every brand of machining center. For custom CNC horizontal machining tower manufacturing, please contact us at our contact addresses.

Octagon Cnc Tombstones

Octagon tombstones are engineered to maximize part density and workholding capacity, making them ideal for high-volume production environments. With eight usable faces, they offer exceptional flexibility for mounting multiple components while maintaining excellent accessibility for machining operations. When a smooth, featureless surface is not required, our octagon tombstones are available with a range of grid configurations, including the industry-standard 2″ grid, T-slots, or fully customized layouts to suit specific application needs.

Key Features

  • Grid patterns with holes, precision bushings, and inserts are offered for both 1/2″ and 5/8″ systems, supporting versatile fixturing options
  • Hardened threaded inserts enable secure clamping at every grid point and are designed for fast, simple replacement to minimize downtime
  • High-precision, heat-treated bushings are accurately positioned to ensure reliable, repeatable part alignment and superior resistance to wear
  • Replacement bushings, inserts, and an extraction tool are available upon request to support long-term maintenance and consistent performance
Tolerance Precision
Flatness (tombstones & plates) 0.0005 / 12×12
Parallelism (plates) 0.0005 / 12, Max 0.002 total
Perpendicularity 0.0008 / 12, Min 0.001, Max 0.002 / 48
Surface Finish 63 RMS
Face Thickness ≤18” = ±0.002, >18” = ±0.003
Tapped Holes (non-accumulative) ±0.005
Precision Bushing I.D. +0.0013 / +0.0007
Precision Bushing Concentricity 0.0001
Bored or Precision Bushing Hole to Adjacent Hole ±0.0005
First Row Bushing Hole Location from Datums ±0.002
Bored or Precision Bushing Hole Spacing (non-accumulative) 0–10″: ±0.0005
10–20″: ±0.0008
20–30″: ±0.0010
30–40″: ±0.0012
Note: For aluminum, increase these tolerances by 50%