HEXAGON 8-Series Arm Accuracy and Reach by Model - Scan Arm Models
Written by Michael Cone
Updated at January 30th, 2026
Table of Contents
See the chart below to learn the accuracy and maximum reach of each HEXAGON arm model based on length.
Reach values in this chart subtract 24 inches (612 mm) from arm reach to allow the scanner to scan the ends of the tube. The articulation twists back toward the other side of the volume.
The most extended reach using a HEXAGON 4.5-meter arm with a 3500 TRAX is 7.4 meters, or 24 feet.
The reach using a standard HEXAGON 2.5-meter arm with a 3500 TRAX is 5.4 meters, or 17.7 feet.
| Model | Accuracy | Accuracy (Inches) | Reach | Reach (Inches) | Reach (Feet) | Include TRAX 1800 Reach |
Include TRAX 3500 Reach |
|---|---|---|---|---|---|---|---|
| 8320-7 | 0.062 mm | 0.0024 in | 1.39 m | 54.6 in | 4.5 ft | 10.5 ft | 16.1 ft |
| 8325-7 | 0.068 mm | 0.0027 in | 1.89 m | 74.3 in | 6.2 ft | 12.1 ft | 17.7 ft |
| 8330-7 | 0.092 mm | 0.0036 in | 2.39 m | 94.0 in | 7.8 ft | 13.7 ft | 19.3 ft |
| 8335-7 | 0.105 mm | 0.0041 in | 2.89 m | 113.7 in | 9.5 ft | 15.4 ft | 21.0 ft |
| 8340-7 | 0.122 mm | 0.0048 in | 3.39 m | 133.4 in | 11.1 ft | 17.0 ft | 22.6 ft |
| 8345-7 | 0.172 mm | 0.0068 in | 3.89 m | 153.1 in | 12.8 ft | 18.7 ft | 24.3 ft |
| 8520-7 | 0.045 mm | 0.0018 in | 1.39 m | 54.6 in | 4.5 ft | 10.5 ft | 16.1 ft |
| 8525-7 | 0.048 mm | 0.0019 in | 1.89 m | 74.3 in | 6.2 ft | 12.1 ft | 17.7 ft |
| 8530-7 | 0.066 mm | 0.0026 in | 2.39 m | 94.0 in | 7.8 ft | 13.7 ft | 19.3 ft |
| 8535-7 | 0.080 mm | 0.0031 in | 2.89 m | 113.7 in | 9.5 ft | 15.4 ft | 21.0 ft |
| 8540-7 | 0.091 mm | 0.0036 in | 3.39 m | 133.4 in | 11.1 ft | 17.0 ft | 22.6 ft |
| 8545-7 | 0.148 mm | 0.0058 in | 3.89 m | 153.1 in | 12.8 ft | 18.7 ft | 24.3 ft |
| 8725-7 | 0.044 mm | 0.0017 in | 1.89 m | 74.3 in | 6.2 ft | 12.1 ft | 17.7 ft |
| 8730-7 | 0.058 mm | 0.0023 in | 2.39 m | 94.0 in | 7.8 ft | 13.7 ft | 19.3 ft |
| 8735-7 | 0.071 mm | 0.0028 in | 2.89 m | 113.7 in | 9.5 ft | 15.4 ft | 21.0 ft |
| 8740-7 | 0.082 mm | 0.0032 in | 3.39 m | 133.4 in | 11.1 ft | 17.0 ft | 22.6 ft |
| 8745-7 | 0.127 mm | 0.0050 in | 3.89 m | 153.1 in | 12.8 ft | 18.7 ft | 24.3 ft |
Excel Spreadsheet Calculator: Calculate the Required Ceiling Height
Arms fold vertically in their resting position.
Therefore, arm heights above the table should be taken into account when planning for ceiling heights. Download and use this calculator to enter your table height and calculate the needed ceiling height for any system.
| HEXAGON Arm Lengths by Model mm | HEXAGON Arm Length in Resting Position Factor | Calc Arm Height mm | Calc Arm Height Inches | Calc Arm Height Feet | Table Height mm | Calc Table Height Inches | Calc Table Height Feet | Calc Ceiling Height mm | Calc Ceiling Height Inches | Calc Ceiling Height Feet |
| 2000 | 0.43688 | 874 | 34.4 | 2.87 | 762 | 30.0 | 2.5 | 1635.8 | 64.4 | 5.4 |
| 2500 | 0.43688 | 1092 | 43.0 | 3.58 | 762 | 30.0 | 2.5 | 1854.2 | 73 | 6.1 |
| 3000 | 0.43688 | 1311 | 51.6 | 4.30 | 762 | 30.0 | 2.5 | 2072.6 | 81.6 | 6.8 |
| 3500 | 0.43688 | 1529 | 60.2 | 5.02 | 762 | 30.0 | 2.5 | 2291.1 | 90.2 | 7.5 |
| 4000 | 0.43688 | 1748 | 68.8 | 5.73 | 762 | 30.0 | 2.5 | 2509.5 | 98.8 | 8.2 |
| 4500 | 0.43688 | 1966 | 77.4 | 6.45 | 762 | 30.0 | 2.5 | 2728.0 | 107.4 | 9.0 |
How to Determine the Correct Arm Length for Your Application
About the iMC TRAX 3500 and 1800 Models
| This is an iMC Lite table with the TRAX 3500. |  |
| This is an iMC Lite table with the TRAX 1800. |  |
About Leapfrog Plate Styles
Leapfrog plates allow you to make an arm move in the middle of a measure. You can use two kinds of leapfrog plates. We offer both types in our online store.
| Sphere Style |  |
| Conical Seat Style (for use with ball probe only) |  |