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Finding the Right Tombstone is Easy with Hennig
Read our handy guide on how to select the right tombstone from their wide range of products.
Which Tombstone
is right for me?
is right for me?
Machine brand
Machine model
— or —
Pallet size
Table dimensions aren't available for this model.
Select a pallet size directly, or contact us for help matching your machine.
Machine brand
Machine model
— or —Pallet size
Y-Shape Tombstones
Quality is built on a precision foundation
Y tombstones are ideal for three-sided machining without sacrificing tool clearance. Based on your application, corner faces could also be used to mount parts. If a plain-face tombstone is not desired, the grid systems for our Y tombstones that are available include industry standard 2" grid, t-slots, and custom grids.
Did you know about our epoxy mineral tombstones?
- Minimal thermal expansion
- Reduces mass
- Impressive vibration damping
- Comparable to a traditional cast iron material choice
Overview Catalog
Learn about our full workholding line including CNC tombstones, workholding systems, Build on the Rock partners, and custom fixturing solutions.
Capabilities Brochure
Our AMROK capabilities PDF offering a brief overview of our workholding product selection.
Tombstone Testing for Dynamic Performance
Because tombstones support the workpiece during machining, their dynamic response becomes part of the entire system. The goal of this effort was to measure the dynamics individually and then as part of a machine set up. All tests were conducted by Dr. Tony L. Schmitz, a world renowned mechanical engineering professor at the University of Tennessee, Knoxville and Joint Faculty at Oak RIdge National Laboratory, who specializes in machine tool research and manufacturing engineering.
Y Tombstones
Grid System
- 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 replaceability
- 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
| G | ∅D | L | L1 |
| UNC | inch | inch | inch |
| 1/2"-13 | .5007/.5013 | 0.53 | 1.44 |
| 5/8"-11 | .6257/.6263 | 0.78 | 1.69 |
Y Tombstones
Tolerances
| Tolerance | Precision |
| Flatness (tombstones & plates) | 0.0005 / 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 | ±0.0005 |
| 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.
Y Tombstones
Technical Specifications & CAD
16
Models
12
CAD Available
| Product ID | 3D CAD | Buy Online | A (in) | B (in) | B1 (in) | C (in) | D (in) | E (in) | F (in) | G (in) | Weight (lbs) | Grid Style | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AMR-Y040826-16 | 15.75 (400mm) | 3.8 | 3.875 | 26.0 | 11.811 (300mm) to 12.598 (320mm) | 4.331 (110mm) | 1.50 | - | 345 | Plain Face | |||
| AMR-Y040826-16-50 | 15.75 (400mm) | 3.8 | 3.875 | 26.0 | 11.811 (300mm) to 12.598 (320mm) | 4.331 (110mm) | 1.50 | 1.000 | 345 | UNC 1/2"-13 | |||
| AMR-Y040826-16-62 | 15.75 (400mm) | 3.8 | 3.875 | 26.0 | 11.811 (300mm) to 12.598 (320mm) | 4.331 (110mm) | 1.50 | 1.000 | 345 | UNC 5/8"-11 | |||
| AMR-Y041224-16 | 15.75 (400mm) | 4.0 | 6.000 | 24.0 | 11.811 (300mm) to 12.598 (320mm) | 4.331 (110mm) | 1.50 | - | 490 | Plain Face | |||
| AMR-Y041224-16-50 | 15.75 (400mm) | 4.0 | 6.000 | 24.0 | 11.811 (300mm) to 12.598 (320mm) | 4.331 (110mm) | 1.50 | 1.000 | 490 | UNC 1/2"-13 | |||
| AMR-Y041224-16-62 | 15.75 (400mm) | 4.0 | 6.000 | 24.0 | 11.811 (300mm) to 12.598 (320mm) | 4.331 (110mm) | 1.50 | 1.000 | 490 | UNC 5/8"-11 | |||
| AMR-Y040826-20 | 19.69 (500mm) | 3.8 | 3.875 | 26.0 | 15.748 (400mm) to 16.000 (406.4mm) | 5.906 (150mm) | 1.50 | - | 395 | Plain Face | |||
| AMR-Y040826-20-50 | 19.69 (500mm) | 3.8 | 3.875 | 26.0 | 15.748 (400mm) to 16.000 (406.4mm) | 5.906 (150mm) | 1.50 | 1.000 | 395 | UNC 1/2"-13 | |||
| AMR-Y040826-20-62 | 19.69 (500mm) | 3.8 | 3.875 | 26.0 | 15.748 (400mm) to 16.000 (406.4mm) | 5.906 (150mm) | 1.50 | 1.000 | 395 | UNC 5/8"-11 | |||
| AMR-Y071828-20 | 19.69 (500mm) | 7.0 | 8.520 | 28.0 | 15.748 (400mm) to 16.000 (406.4mm) | 5.906 (150mm) | 2.00 | - | 845 | Plain Face | |||
| AMR-Y071828-20-50 | 19.69 (500mm) | 7.0 | 8.520 | 28.0 | 15.748 (400mm) to 16.000 (406.4mm) | 5.906 (150mm) | 2.00 | - | 845 | UNC 1/2"-13 | |||
| AMR-Y071828-25 | 24.80 (630mm) | 7.0 | 8.500 | 28.0 | 19.685 (500mm) to 20.000 (508mm) | 7.874 (200mm) | 2.00 | - | 880 | Plain Face | |||
| AMR-Y071828-25-50 | 24.80 (630mm) | 7.0 | 8.500 | 28.0 | 19.685 (500mm) to 20.000 (508mm) | 7.874 (200mm) | 2.00 | - | 880 | UNC 1/2"-13 | |||
| AMR-Y082130-25 | 24.80 (630mm) | 8.0 | 10.000 | 30.0 | 19.685 (500mm) to 20.000 (508mm) | 7.874 (200mm) | 2.00 | - | 1365 | Plain Face | |||
| AMR-Y082130-25-50 | 24.80 (630mm) | 8.0 | 10.000 | 30.0 | 19.685 (500mm) to 20.000 (508mm) | 7.874 (200mm) | 2.00 | 1.000 | 1365 | UNC 1/2"-13 | |||
| AMR-Y082130-25-62 | 24.80 (630mm) | 8.0 | 10.000 | 30.0 | 19.685 (500mm) to 20.000 (508mm) | 7.874 (200mm) | 2.00 | 1.000 | 1365 | UNC 5/8"-11 |
Your Selection
Each model below is routed to the best next step based on availability.
Setup Time Calculator
How Much Is Setup Time Costing You?
Every changeover means idle spindle time. Multi-part fixturing slashes setup frequency — so your machines spend more hours cutting and less time waiting.
Your Machines
$
The Setup Problem
min
%
Annual Cost of Fixture Changeovers
1,500 hrs
Spindle Hours Lost to Setup / Year
$263K
Annual Lost Production Value
$131K
Recoverable with Workholding
Based on 250 working days/yr. Multi-part fixturing reduces changeover frequency so your spindle spends more time cutting.
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