The site throughput values according to experts only give a first estimate for those who want to organize the activity of new equipment. But the connected meters present in the cumas now provide precise records to those responsible. Collected and analyzed by Fncuma’s Agroécotech service, with the support of network leaders in the field, these figures allow for more finesse in forecasting. Let’s find out what the gain in throughput is with a mower combination.
Three widths in comparison
In this case, we were able to compare the data from three types of mowers :
They evolved in situations of fragmentation and harvest conditions not necessarily strictly identical. Nevertheless, the number of measurements, in particular for the widths of 4 and 9 m, gives a certain robustness to the comparisons.
Effect of working width on performance with the mower combination.
A little slower with the mower combination
First observation: the site throughput is not strictly proportional to the working width. Based on the 1.9 ha/h measured with the 4 m mower, the mower combination of 6 like the 9 m one should theoretically have offered a little more than the 2.50 and 3.8 ha/h measured.
In fact, they moved a little slower, respectively 6.8 and 6.6 km/h compared to 7.5 km/h for the solo machine. There tractor power limitation and the greater complexity of the maneuvers for the driver can explain this. It is also likely that the mechanics are in better shape.
-Average speed in the plot depending on the area to be mowed.
No surface effect above 4 km/h
Then, a surface effect appears logically, but not in a linear way. Thus, from 4 ha of site, the 4 and 9 m machines no longer gain in throughput. For the 6 m mowing combination, the surface effect is significantly less clear, but the number of data is also lower.
Examining work speeds as a function of job site size provides a similar result. Going from less than 1 ha to 4 ha allows you to go faster on average. But beyond that, the gain largely fades away.
Average work output in the plot depending on surface area and mowing width
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