H & M Pipe Beveling Machines built since 1993 have a “C” in the serial number indicating they use our cuboid spacer system as opposed to the “old style” spacers.
The following diagrams show how to set up the spacers by machine model
For “cuboid” H & M Pipe Beveling Machines (those with “C” in the serial number), the following chart shows the proper spacer length.
Model 0 
| H & M Standard Beveling Machines | |||
|---|---|---|---|
| Model No. | Pipe Size | Pipe OD | Spacer Length |
| No. 0 | 2″ | 2.375″ | 1.062″ |
| No. 0 | 2.5″ | 2.875″ | 0.812″ |
| No. 0 | 3″ | 3.500″ | 0.500″ |
Model 1 
| H & M Standard Beveling Machines | |||
|---|---|---|---|
| Model No. | Pipe Size | Pipe OD | Spacer Length |
| No. 1 | 3″ | 3.500″ | 2.563″ |
| No. 1 | 4″ | 4.500″ | 2.063″ |
| No. 1 | 6″ | 6.625″ | 1.000″ |
Model 2 
| H & M Standard Beveling Machines | |||
|---|---|---|---|
| Model No. | Pipe Size | Pipe OD | Spacer Length |
| No. 2 | 7″ | 7.625″ | 2.563″ |
| No. 2 | 8″ | 8.625″ | 2.063″ |
| No. 2 | 10″ | 10.750″ | 1.000″ |
Model 3 & up
| H & M Standard Beveling Machines | |||
|---|---|---|---|
| Model No. | Pipe Size | Pipe OD | Spacer Length |
| No. 3 | 14″ | 14.000″ | 3.000″ |
| No. 3 | 16″ | 16.000″ | 2.000″ |
| No. 3 | 18″ | 18.000″ | 1.000″ |
| . | . | . | . |
| No. 4 | 20″ | 20.000″ | 3.000″ |
| No. 4 | 22″ | 22.000″ | 2.000″ |
| No. 4 | 24″ | 24.000″ | 1.000″ |
| . | . | . | . | No. 30 | 24″ | 24.000″ | 3.000″ |
| No. 30 | 26″ | 26.000″ | 2.000″ |
| No. 30 | 28″ | 28.000″ | 1.000″ |
| . | . | . | . |
| No. 5 | 30″ | 30.000″ | 3.000″ |
| No. 5 | 32″ | 32.000″ | 2.000″ |
| No. 5 | 34″ | 34.000″ | 1.000″ |