AMROK Octagon

Cast Iron, Aluminum, Steel or Epoxy-Mineral

Standard grid patterns
Custom holes
Plain faces
Standard catalog sizes available with “special” sizes upon request

CAD Models

Octagon tombstones provide for high density work holding of parts.

Steel weldments are provided in any size upon request.
CMM report is available upon request.
Download our Catalog for more information and call us to configure a Tombstone or Grid Plate that meets your needs.

CAD models will soon be available through the model numbers in the table below.

AMROK Octagon

Plain Tombstone Model #	Cast Iron Weight (lbs.)	Aluminum Weight (lbs.)	A	B	C	D	E	F
AMR-O030818-12	224	86	3.31	8	18	300 mm	1.5	2
AMR-O041018-12	281	108	4.14	10	18	300 mm	1.5	2
AMR-O041022-20	466	179	4.00	9.66	22	500 mm	2	2
AMR-O041024-16	407	156	4.14	10	24	400 mm	1.5	2
AMR-O041028-20	560	215	4.14	10	28	500 mm	2	2
AMR-O051224-16	485	186	4.97	12	24	400 mm	1.5	2
AMR-O051228-20	650	249	4.97	12	28	500 mm	2	2
AMR-O061424-16	563	216	5.80	14	24	400 mm	1.5	2
AMR-O061428-20	740	284	5.80	14	28	500 mm	2	2
AMR-O061432-25	940	361	5.78	14	32	630 mm	2	2
AMR-O071828-20	916	351	7.45	18	28	500 mm	2	2
AMR-O071832-25	1143	439	7.45	18	32	630 mm	2	2
AMR-O082028-25	1124	431	8.28	20	28	630 mm	2	2
AMR-O082032-25	1247	480	8.28	20	32	630 mm	2	2
AMR-O092232-25	1351	519	9.11	22	32	630 mm	2	2
AMR-O092240-32	1823	700	9.11	22	40	800 mm	2	2
AMR-O122840-32	2220	852	11.60	28	40	800 mm	2	2

Ordering Guide

Please specify these 5 items when ordering:

1. Part Number (unless you need a special configuration)

2. After each part number specify

"C" (casting only)
"BO" (base machined only with mounting holes and locating description and overall height finish with lift holes)
"BS" (plain machining complete)
"D" (dedicated machining)

3. Material: Cast Iron, Aluminum, or Steel

4. Quality: Standard or Precision

5. Machining Specification

All tombstones are made to fit your machining center either by edge locating or with hardened and ground wear pads, center locating, or just plain mounting holes to your specifications.

We can provide plain faces, hole grid patterns with precision bushings and threaded inserts, precision T-slots, or any machining to your specifications. All configurations are available in standard or precision. All tombstones and plates are stress relieved. We also specialize in hydraulic/pneumatic or manual dedicated fixturing. We at Advanced Machine & Engineering have a complete team of engineers to design and build whatever type of fixture you might need.

Approval drawings are provided before manufacturing. CMM report is available upon request.

Tolerances	Standard	Precision
Flatness (Tombstones & Plates)	.0005/12x12	.0005/12x12
Parallelism (Tombstones)	.001/12	.0005/12 Min. .001, Max. .002/48
Parallelism (Plates)	.0005/12 Max. .002 Total	.0005/12 Max. .002 Total
Perpendicularity	.001/12	.0008/12 Min. .001, Max. .002/48
Surface Finish	63 RMS	63 RMS
Face Thickness	“≤30”” = ±.002, >30”” = ±.003”	“≤18”” = ±.001, >18”” = ±.002”
Tapped Holes (non accumulative)	±.005	±.005
Bore Diameter	-0 H8 +.001	-0 H7 +.0007
Precision Bushing I.D.	- 0 H6 + .0004	- 0 H6 +.0004
Precision Bushing Concentricity	0.0001	0.0001
Bored or Precision Bushing Hole to Adjacent Hole	±.0005	±.0005
First Row Bushing Hole Location from Datums	±.002	±.001
Bored or Precision Bushing Hole Spacing (non accumulative)	0-20 ±.0015 20-30 ±.002 30-40 ±.0025	0-20 ±.0005 20-30 ±.0008 30-40 ±.001