- a semi cylindrical body mounted on a box section chassis
- PTO driven flywheel with 6 discharge paddles
- Contra-rotating agitator on flywheel – driven by ring gear
- Hydraulically operated rear pusher door
- Hydraulically operated front slurry door
- Left side discharge opening
- Additional breaker tined at outlet

The flywheel rotates at 150rpm with 540rpm input. The material is contained between the pusher door and the slurry door.
When spreading, the flywheel is brought up to speed, the slurry door is raised and the pusher door feeds the material forward into the flywheel. A hydraulic flow valve mounted at the front of the machine controls the feed rate. This can be adjusted from 0 litres/min to 11 litres/min on a scale of 0 – 12. See technical data below.

The output can be measured in 2 ways:

Deposition rate – This depends in the level of material in the machine and the feed rate of the material to the flywheel.
Application rate – This depends on the deposition rate and the ground area covered.

Valve setting Discharge time Deposition rate (m³/min) * Deposition rate (tons/min) **
1     14min 11sec 0.70 0.84
2      7min 05sec 1.41 1.69
3      4min 43sec 2.12 2.54
4      3min 32sec 2.83 3.39
5      2min 50sec 3.52 4.23
6      2min 21sec 4.25 5.10
7      2min 01sec 4.95 5.95
8      1min 46sec 5.66 6.79
9      1min 34sec 6.38 7.65
10    1min 25sec 7.05 8.47
11    1min 17sec 7.79 9.35
12    1min 11sec 8.45 10.14

*   Based on a material load of 10 cubic meters
** Based on a material load of 10 cubic meters and density of 1.2 tons/m³