NAAMS Tubular Risers
Freer Tool & Supply’s NAAMS steel risers collection supports rigid, repeatable height spacing for welding fixtures, assembly tooling, and automation builds where strength and stability are critical. Steel risers are used to raise locating, clamping, and support components to the correct working height while maintaining a solid foundation—helping reduce deflection, improve alignment retention, and keep part location consistent through high-cycle production.
Tubular NAAMS standards risers are manufactured with ASTM A-36 steel. Their height ranges from 850 to 1600mm in 50mm increments.

| NAAMS Code | “A” DIM | “B” | “C” | WT. kg |
|---|---|---|---|---|
| ARB085E | 850.00 | 880.0 | 440.0 | 43.1 |
| ARB085M | 850.00 | 880.0 | 440.0 | 43.1 |
| ARB090E | 900.00 | 930.0 | 465.0 | 44.9 |
| ARB090M | 900.00 | 930.0 | 465.0 | 44.9 |
| ARB095E | 950.00 | 980.0 | 490.0 | 46.7 |
| ARB095M | 950.00 | 980.0 | 490.0 | 46.7 |
| ARB100E | 1000.00 | 1030.0 | 515.0 | 48.5 |
| ARB100M | 1000.00 | 1030.0 | 515.0 | 48.5 |
| ARB105E | 1050.00 | 1080.0 | 540.0 | 50.3 |
| ARB105M | 1050.00 | 1080.0 | 540.0 | 50.3 |
| ARB110E | 1100.00 | 1130.0 | 565.0 | 52.2 |
| ARB110M | 1100.00 | 1130.0 | 565.0 | 52.2 |
| ARB115E | 1150.00 | 1180.0 | 590.0 | 54.0 |
| ARB115M | 1150.00 | 1180.0 | 590.0 | 54.0 |
| ARB120E | 1200.00 | 1230.0 | 615.0 | 55.8 |
| ARB120M | 1200.00 | 1230.0 | 615.0 | 55.8 |
| ARB125E | 1250.00 | 1280.0 | 640.0 | 57.6 |
| ARB125M | 1250.00 | 1280.0 | 640.0 | 57.6 |
| ARB130E | 1300.00 | 1330.0 | 665.0 | 59.4 |
| ARB130M | 1300.00 | 1330.0 | 665.0 | 59.4 |
| ARB135E | 1350.00 | 1380.0 | 690.0 | 61.2 |
| ARB135M | 1350.00 | 1380.0 | 690.0 | 61.2 |
| ARB140E | 1400.00 | 1430.0 | 715.0 | 63.0 |
| ARB140M | 1400.00 | 1430.0 | 715.0 | 63.0 |
| ARB145E | 1450.00 | 1480.0 | 740.0 | 64.9 |
| ARB145M | 1450.00 | 1480.0 | 740.0 | 64.9 |
| ARB150E | 1500.00 | 1530.0 | 765.0 | 66.7 |
| ARB150M | 1500.00 | 1530.0 | 765.0 | 66.7 |
| ARB155E | 1550.00 | 1580.0 | 790.0 | 72.6 |
| ARB155M | 1550.00 | 1580.0 | 790.0 | 72.6 |
| ARB160E | 1600.00 | 1630.0 | 815.0 | 74.4 |
| ARB160M | 1600.00 | 1630.0 | 815.0 | 74.4 |