Guide to Selection of Micro Tunnelling Machines
Note - The following table is offered as a comparative guide only and a means to readily identify the most suitable Micro Tunneller for your needs. TerraMacs accepts no liability
whatsoever where machines fail to perform to stated levels, as ground conditions, operator techniques, fluids, tooling and machine speeds are all highly
variable and contribute to the effectivity and productivity of the Micro Tunnelling operation. It may be possible to tunnel larger diameters over shorter lengths or smaller diameters
over longer lengths. We strongly recommend that you discuss your requirements with your distributor or contact TerraMacs before making a final machine selection.
| Thrust & Pullback |
Newtons |
400,000 |
1,041,000 |
| Pounds |
89,923 |
234,000 |
| Torque & Spindle speed RPM |
Newton Metres |
2,033 Nm at 200rpm & 4,068 Nm at 100rpm |
5,100 Nm at 200 rpm, 8,510 Nm at 150 rpm & 13,558 Nm at 100 rpm |
| Foot Pounds |
1,500 ft lbs at 200rpm & 3,000 ft lbs at 100rpm |
3,763 ft lbs at 200rpm, 6,275 ft lbs at 150rpm & 10,000 ft lbs at 100rpm |
| Soft/Medium Ground Conditions |
Max. Diameter |
mm |
500 |
1400 |
| Inches |
20 |
55 |
| Max. Length |
Metres |
50 |
50 |
| Feet |
164 |
164 |
| Hard Ground Conditions |
Max. Diameter |
mm |
400 |
1200 |
| Inches |
16 |
47 |
| Max. Length |
Metres |
30 |
30 |
| Feet |
98 |
98 |
Note - If the Micro Tunnelling specification required is not shown above, TerraMacs offers a custom design and build service. Please
contact us
to discuss your needs.
