Fully hydraulic drive
Product presentation and instruction video of the ROPA Keiler 2 RK22 with Sebastian Grünig and Magnus Windbergs
Welcome to the instruction video! Our company representative Sebastian Grünig and product specialist Magnus Windbergs explain in detail the new ROPA Keiler 2 RK 22 potato harvester.
Discover what's inside the new ROPA Keiler.
The ROPA Keiler 2 RK 22 was awarded the German Innovation Award and embodies sustainable agriculture based on innovation and digitalisation.
Find out more about the revolutionary features of this premium potato harvester in our video!
Hydraulic concept taken to the next level
Unique feature among all tractor-drawn implements
Fully hydraulic drive of all cleaning units, conveyors and chains. Electronically controlled load sensing operating hydraulics.
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The working hydraulics of the Keiler 2 RK22 have been completely redesigned for even more responsive control of all drives and functions as well as increased drive power. The Keiler 2 is unique among all tractor-towed implements thanks to its fully hydraulic drive of all separation systems, conveyors and chains in conjunction with an internal, electronically controlled load-sensing working hydraulics. Designed for long life, this construction is precisely controllable and ensures increased harvest quality while saving fuel and resources.
- ■ All drives are supplied by axial piston pumps with variable displacement volume.
- ■ All cleaning units maintain their optimal speed independently of the PTO speed.
- ■ All cleaning units are steplessly adjustable in speed.
- ■ Fuel-saving and resource-efficient due to reduced engine speed.
- ■ Operational safety thanks to reversible sieve conveyor 1 or lifter chain.
- ■ Reversible trash conveyor for direct return of admixtures into the sieve conveyor 2, while the right discharge chute retains its function
ELECTRONIC LOAD-SENSING SYSTEM
- Connection to the tractor
- PTO shaft
- Power beyond connections with load-sensing control line, coupled to the tractor
- Axial-piston pumps for all drives
- Electronically controlled load sensing operating hydraulics
A winner of the German Innovation Award
The hydraulic system of the tractor supplies oil to the potato harvester only when the hydraulic power is required. The electronic load-sensing system regulates the quantity required to match the demand. Compared to standard hydraulic load-sensing systems, the function-dependent intelligent control of the hydraulic pressure on the tractor minimises vibrations in the hydraulic system of the harvester and significantly improves the precision and steerability of working functions. Lower tractor engine speed saves fuel and resources. The hydraulic system can be individually adapted to the various requirements of the implement and work process by means of different characteristic curves.
Further improvements to your advantage:
- More sensitive controls
- Less wear and tear
- Increased efficiency
1. PTO shaft
2. Axial-piston pumps for all drives
3. Load sensing operating hydraulics
Compared to the previous model, its fully hydraulic drive has been equipped with two additional variable displacement axial piston pumps. Thereby, a gear pump for the pickup drives has been replaced by an axial piston pump. The same applies to the disc coulter drive or the cover belt and the lifting shaft of the swath pickup.
One more axial piston pump supplies the drives for UFK ("rotating finger comb"), as well as the deflector rollers of the pintle belt 1. A decisive advantage, as it results in an increased performance due to perfected separation and significantly more drive power at the pintle belt 1. In addition, speed of the deflector rollers at the pintle belt 1 can be adjusted separately to its own speed.
From now on, 6 variable displacement axial piston pumps, or 7 if you count the wheel drive, provide reliable service in the working hydraulics. Compared to standard drive designs, the Keiler 2 RK22 impresses with further improved energy efficiency, even lower fuel consumption and reduced operating noise.
E-LS connect
The future of digitally connected hydraulics
ROPA and Fendt are presenting e-LS connect at Agritechnica in Hanover, a groundbreaking development in the field of hydraulic connection between the tractor and attached machine. For the first time, the new system enables fully electronic transmission of the oil pressure signal via ISOBUS – without a separate hydraulic load-sensing control line. This solution means that the tractor-attached machine combination achieves a new level of precision, efficiency and system stability.
From hydraulics to electronics – a technological leap in practice
For around 30 years, oil pressure has been communicated between the tractor and the attached equipment via a hydraulic load-sensing line.
With e-LS connect, this connection is now digitalised. The required oil pressure is transmitted electronically from the attached machine to the tractor via the ISOBUS, allowing the pump to deliver exactly the right volume flow.
Components such as pressure control valves, sensors and LS control lines are no longer required, which reduces potential causes of error, increases operational safety and simplifies the process of coupling and uncoupling.
Greater efficiency, higher productivity, better harvest quality
The potato harvester ROPA Keiler 2 RK22 demonstrates the benefits of e-LS connect in practical use.The working hydraulics respond even more quickly and precisely, e.g. when unloading the bunker. At the same time, diesel consumption is reduced because the hydraulic pump always operates at the optimum control pressure differential. It results in greater efficiency, improved quality of the harvested crop and increased profitability.
