R-Soil Protect
TRANSFORMER and HEKTARFRESSER – ROPA Maus 6 with Tiger 6S & Panther 2S on a side slope
Both sugar-beet harvesters have fully automatic slope compensation. On a side slope the chassis of the Tiger 6S and the Panther 2S is inclined to the slope. When the three-point suspension is lowered, the lifting unit is guided parallel to the front axle and thus to the slope. It's of a great advantage, as the correct lifting depth is achieved over the entire working width starting from the first tuber.
Hydraulic chassis system - roll stabilization with load compensation, patented
ROPA has developed an innovative chassis concept with an oscillating front axle in conjunction with two hydraulically supported rear axles specially for the flagship Tiger. Compared to the chassis on previous 3-axle beet harvesters (with the central axle fixed to the frame), this reduces the sway of machine by one third! The reason for the improvement is the hydraulic connection of the cylinders at the front and rear axles on one side, so unevenness at one wheel at a different level only affects the frame by 33 per cent compared to the previous system. Thanks to the reduction of the chassis swing, the row and depth control are improved simultaneously, as the frame is averaged to the position of three axles. The hydraulic connection of the axles always distributes the load equally over all 6 wheels.
The hydraulic chassis system minimizes tire load and ground pressure, thus ensuring further reduction of tire pressure.
Animation shows Tiger 5, chassis of Tiger 6S identical.
ROPA R-Soil Protect
- Significantly greater soil protection due to tire inflation pressure reduced by 1 bar in comparison with euro-Tiger V8-4 - unique in root crop harvesting
- 49 % larger tire contact area, 33% less contact pressure with the IF1000/55 R32 CerexBib
- Significant reduction of load peaks by load transfer:
by 8 % on the first axle, 37 % on the second axle, 43 % on the third axle
- Even load distribution over all wheels by networked hydraulics
- On the slope, the load and the center of gravity of the lower side of the slope are shifted to the top of the slope
- Cleaning elements are guided horizontally even on slopes, providing perfect cleaning performance
- Soil-protective sugar beet harvesting also on the side slope without increasing tire pressure
- Maintains and protects the soil structure, maintaining infiltration capacity and air exchange
Summary: Resources and Soil Protection for Efficient Land Management
Soil-protective hydraulic chassis system with Ultraflex tire technology
Low tire inflation pressure for sustainable land management
ROPA R-Soil Protect is the combination of a soil-protective, hydraulic chassis system with MICHELIN CerexBib tire technology. This soil protection concept was awarded a silver medal at Agritechnica in Hanover. It only requires 1.4 bar tire pressure and it is available as an option in the Tiger 6S. The synergy of the load-balancing hydraulic chassis with the new generation of MICHELIN IF1000/55 R32 CerexBib tires offers even more contact surface with sustained soil protection and significantly reduced contact pressure.
Increased soil protection with significantly fewer load peaks
The chassis of the Tiger 6 reduces the load peaks by
- 8% at the 1st axle
- 37% at the 2nd axle
- 43% at the 3rd axle
Hydraulic chassis system
Up to 10% slope compensation
The automatic slope compensation via six hydraulic cylinders and sensors is also unique among 3-axle sugar beet harvesters. The chassis is kept completely horizontally for up to 10 percent side slope. The gravity center and, thus, the load of the wheels on the slope bottom are shifted to the slope top.
Focal point / soil pressure compensation
The track depth of the wheels on the slope bottom is substantially reduced, the infiltration capacity is retained, thus significantly reducing erosion risk during heavy rains.
The slope stability and traction increase greatly, the risk of tipping over is considerably reduced alongside with increased driving comfort.
Stepless CVR transmission for efficient power transfer
Direct power transmission with cardan shafts ensures even traction at all wheels with very high torque
As a unique selling proposition on the market of 3-axle sugar beet harvesters, the Tiger has a direct power transmission via directly linear situated cardan shafts from traction drive to both rear axles and front axle, which is a great advantage for better traction in changing or difficult soil and harvesting conditions. The hydraulic chassis always distributes the load evenly.
Stepless CVR transmission for efficient power transfer
The new stepless traction drive was specifically developed by ROPA, Omsi and Bosch Rexroth for the ROPA Tiger with its high drive power. The "constant variable ROPA" transmission (CVR) consists of three hydraulic motors on a compound gearbox and is located between the engine compartment and the third axle. The maximum speed of 40 km/h can be reached by the Tiger 6S at economical 1200 rpm. Harvesting in the field requires an engine speed of only 1,100 rpm. Depending on power requirements the rotational speed of the Tiger is automatically regulated up to 1,650 rpm. The multi-disk differential brakes integrated into the axles (protected from dirt) running in an oil bath "tame" the Tiger as required.