Agrotruck by Mercedes: This is how the all-wheel drive truck performs for farmers.
Power, comfort, and field performance: How the modified Arocs 2151 performs in practical testing - now with video!
The SinusCut double knife roller is available in working widths ranging from 3 to 8.55 meters. With our 6-meter wide test machine, we used little diesel in the field. The SinusCut SC 600 comes with a split frame. The device is folded out using a dw control unit. We drove the roller at the rear. If you want to drive the SinusCut on the front hydraulics, you connect it to the other side of the double attachment block. Through a front linkage point and rollers running in a rail, Saphir achieves a steered attachment. This prevents the roller from "diving" and ensures that the tractor remains maneuverable during operation. The SinusCut knife roller is equipped with a leading impulse rail. The knives on the two rollers are differently twisted. An optional impulse rail can be installed in front of the actual roller as in the test. This is an angled profile with the open side facing the ground. The rail is suspended dragingly on a parallelogram and reliably beats the stubble off from the root. Behind, the two 360 mm large rollers work, each carrier fastened to the frame by two large clamping elements. Rubber buffers ensure that the rollers can flex or adapt to uneven ground. There are four knives side by side on the rollers, a total of six knives all around. This makes 24 cuts per roller or 96 for the entire machine. The twisted knives are sinusoidally arranged so that the blades on the front roller work towards the center, those on the rear towards the outside. This creates a diamond pattern, allowing Saphir to cut material lying across the direction of travel. A knife roller requires speed. This was evident in the test. We drove the SinusCut at 18 km/h, effectively beating off the stubble and partly crushing the stems. Depending on the soil type, the blades may penetrate the ground slightly, around 1-2 cm in our case. The high speeds also generate some fine soil on the surface. A full-surface cut and the breaking of capillaries are not possible with knife rollers. The machine handles weeds without issues. The roller excels particularly in fuel consumption. At 1.7 l/ha with a theoretical area performance of 10.8 ha/h, it is the most cost-effective option compared to others. The machine weighs around 2.7 tons. For front attachment, a tractor size above 200 hp is recommended. However, on the road, the machine significantly limits visibility. It is also important to consider the permissible front axle load on the tractor. An advantage of front attachment is the possibility to combine with other devices at the back of the tractor. The scope of application is limited to the shredding of stubble, crop residues, and cover crops with low power and wear costs. A full-surface cut and thus mechanical weed control are not possible.