Window frame tombstones provide machining of parts in both front and back.
It allows you to mount fixture plates on the front or back faces and also keeps the weight to a minimum.
| AMROK Window Frame |
Plain Tombstone Click Part # for CAD |
Cast Iron Weight (lbs.) |
Aluminum Weight (lbs.) |
A |
B |
C |
D SQ or D x D1 |
W1 |
W2 |
G1 |
G2 |
E |
|---|---|---|---|---|---|---|---|---|---|---|---|
143 |
55 |
11.81 |
3 |
18 |
300 mm |
7.8 |
10.5 |
2 |
3 |
1.5 |
|
267 |
102 |
15.75 |
3 |
24 |
400 mm |
9.75 |
14 |
3 |
4 |
1.5 |
|
323 |
124 |
15.75 |
4 |
24 |
400 mm |
9.75 |
14 |
3 |
4 |
1.5 |
|
540 |
207 |
19.68 |
4 |
28 |
500 mm |
11.68 |
16 |
4 |
5 |
2 |
|
624 |
239 |
19.68 |
5 |
28 |
500 mm |
11.68 |
16 |
4 |
5 |
2 |
|
941 |
361 |
24.8 |
5 |
32 |
630 mm |
14.8 |
18 |
5 |
6 |
2 |
|
1065 |
409 |
24.8 |
6 |
32 |
630 mm |
14.8 |
18 |
5 |
6 |
2 |
|
2296 |
881 |
31.5 |
8 |
40 |
800 mm |
15.5 |
22 |
8 |
8 |
2 |

1. Part Number (unless you need a special configuration)
2. After each part number specify
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 |
Parallelism (Plates) | .0005/12 | .0005/12 |
Perpendicularity | .001/12 | .0008/12 |
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 | -0 |
Precision Bushing I.D. | - 0 | - 0 |
Precision Bushing Concentricity | 0.0001 | 0.0001 |
Bored or Precision Bushing | ±.0005 | ±.0005 |
First Row Bushing Hole | ±.002 | ±.001 |
Bored or Precision Bushing | 0-20 ±.0015 | 0-20 ±.0005 |
