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Standard wheels have sharp faced characters, 0-9 (inclusive)
with one blank station. The inscription is quickly indexed
by hand, trip lever or pneumatic valve making Pryor Automatic
Numbering Heads easy to use and ideal for a wide range of
serial number marking.
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Special wheels can be supplied to mark logos, symbols
and letters. Character forms can be sharp faced, flat
faced, ministress, or dot stress.
Styles can be condensed or broad standard style or
to any special character style. Concave and convex characters
can also be provided.
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Tell-Tale characters
in the wheel grooves show the actual characters
in the marking position - particularly helpful
when used in a marking press or machine.

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Inscription / No. characters
The chart below shows the actual lengths for the number of
wheels and character size required using standard style and
spacing.
Using condensed style characters the next size up can be
used, without changing the overall length of inscription from
that shown for the smaller size, for example 3.0mm condensed
characters will give the same overall length as 2.5mm standard.
Using broad style characters the size below can be used without
changing the overall length of inscription from that shown
for the larger size.
| The Seven Stock Sizes Are
Marked in Red, Other Sizes Shown Can Be Quickly Supplied |
| Size |
Number of Wheels
|
| MM |
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
Frame
|
| 1.5 |
3.5
|
5.8
|
8.1
|
10.5
|
12.8
|
15.7
|
17.5
|
19.8
|
22.2
|
24.5
|
26.8
|
|
| 2.0 |
4.3
|
7.1
|
9.9
|
12.7
|
15.5
|
18.3
|
21.1
|
23.9
|
26.7
|
|
| 2.5 |
5.0
|
8.1
|
11.2
|
14.3
|
17.4
|
20.6
|
23.7
|
26.8
|
|
| 3.0 |
5.8
|
9.3
|
12.8
|
16.3
|
19.8
|
23.3
|
26.8
|
|
| 4.0 |
7.3
|
11.6
|
15.9
|
20.2
|
24.5
|
28.8
|
33.1
|
37.4
|
41.7
|
46.0
|
|
Std
Large
Frame
|
| 5.0 |
8.8
|
13.8
|
18.8
|
23.8
|
28.8
|
33.8
|
38.8
|
43.8
|
|
| 6.0 |
10.6
|
16.6
|
22.6
|
28.6
|
34.6
|
40.6
|
46.6
|
|
|
Any Special Numberer
outside the above range can be considered
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Minimum press stroke needed when actuating the numbering head
by any mechanical means is 22mm for the small frame and 35 mm
for the large frame. |