Diesel vertical mast light tower
A self-contained diesel vertical-mast tower, the usual fleet unit for highway and rail works. Bought in quantity, so transport density and set-up time dominate the specification.
Features
- Fleet economics are decided by units per load and by how long one operative takes to deploy each one, not by the unit price.
- A single-cylinder engine on an LED load gives run times long enough that a week of possessions needs no fuel visit.
- Winch-raised telescopic masts have fewer pinch points than a folding mast, which shows up in incident records.
- Because the units nest, a consistent stowed height across the fleet matters more than the lowest possible height on one model.
- Interlocked outriggers stop the mast being raised on an unstabilised chassis, which is the failure mode these towers are known for.
Specifications
| Figure | Typical range | Unit | Why it matters |
|---|---|---|---|
| Total luminous flux | 120 000 - 320 000 | lm | Output per unit, and therefore units per job. |
| Run time per fill | 80 - 200 | h | Fuel visits per week for the fleet. |
| Stowed height | 2 100 - 2 400 | mm | Must be consistent across a nesting fleet. |
| Chassis width | 1 100 - 1 400 | mm | Fits or does not fit a lane closure. |
| Deployment time, one operative | 3 - 6 | min | Multiplied across a fleet, this is the labour cost. |