Datasheets that detail the results of soil compaction testing at SCIA events.
Plot Comments The vehicle was challenging to get aligned with the sensor due to the wagon axles not being perfectly aligned. The tires on the wagon and the tractor had similar weights. The stress for the wagon tires would be expected to be much higher than the tractor in this instance. Notice the consistent level of pressure at […]
Plot Comments The tracks on this combine do a good job to limit pressure at 6 inches. The excessive weight of this combine means that soil stress deeper in the profile will be high regardless of the amount of floatation from the tracks. The rear tire in this instance looks like it is not applying much load […]
Plot Comments The reduced tire pressure in the Field inflated tires (11 psi) on this machine reduces soil stress at the 6 inch depth (E46_B_3), the (E46_A_3) is the same tires inflated to 30psi for road travel by the onboard CTIS system. The data supports the advantages of employing CTIS to optimize tire pressures for […]
Plot Comments This shows the response of the air cart (last two peaks on plot). The response is similar on both sides of the machine. The lower response on the left side was due to misalignment with the sensor. […]
Plot Comments The machine is a self-propelled sprayer. The response shows that the rear axle is much heavier than the front axle suggesting that load sharing could be improved. […]
Plot Comments This combine with the large singles showed a relatively low soil pressure at 6 inches despite having a tire pressure that is well above 20 psi. The large footprint of this tire helps the tire float. There is still a high pressure being developed at 12 and 20 inches due to the weight. […]
Plot Comments This Unit is another good example of the advantages or Central Tire Inflation. On both the left and right sides the plots show a reduction in soil pressure when tire pressure was lowered. This particular tire on the right hand side is a very round tread face and generates a high soil stress […]
Plot Comments This sprayer was equipped with CTIS however it was not used to test different tire pressures due to a malfunction The plots show the balance between the left side and right side tires. The peaks on the plot show the balance of the machine with most of the weight on the rear tire (last […]
Plot Comments This is a small loader tractor with and without a bale. The front right tire was slightly wider than the left side but there was not much of a decrease in soil stress with the wider tire. In both instances the bale added load to the front tire. […]
Plot Comments This shows a typical gravity wagon with a normal radial and a VF tire. The final peak on the plot E36_L_ 4 would be expected to be higher. However the challenge of aligning both left wheels over the sensor meant that it did not measure under the center of the tread face. There was not a substantial difference […]
Plot Comments The response of the cart is typical of a implement with moderate weight and high inflation tires. Response at the surface is much higher than it could be with a low inflation tire, but the moderate amount of weight does not generate much stress at the 20 inch depth. The response of the […]
Plot Comments Due to alignment the tractor was not able to drive over the sensors so only the cart tires were tested. The round profile of the face of this tires meant that the pressure response was non uniform across the face. This meant that the center of the tire applied more soil load (E24_R_3). The other plot […]
Plot Comments This Unit was test on sensor locations 2 and 4. Notice how the 12 inch 20 inch stress was slightly higher for the location 4 (E30_w-disc_4). Also notice how the disc-ripper in the raised position was placing a much higher stress on the soil than the tractor. […]
Plot Comments This Unit again shows the relatively low pressure exerted on soil by articulated tractors with large tires or tracks. Note the difference between the two plots for this tractor is likely due to the change in soil properties between sensor installations. This demonstrates that the soil conditions can have a big impact on how the load […]
Plot Comments This Unit is a very nice demonstration of well balance duals on an articulated tractor This setup did not have much weight on the tractor and draft load from any equipment would increase the pressure on the rear tires. […]