Keiler 2L - overloading bunker

The ROPA Keiler 2L is a 2-row trailed potato harvester with a 5.5 t overloading bunker. As well as new details, the Keiler 2L has just like the well-proven Keiler 2 a fully hydraulic drive for optimal adjustment for cleaning. The Keiler 2L operates independently of the PTO speed and thus maintains all cleaning units in the optimal speed range. The result is reduced engine rotational speed of the tractor for low vibration and reduced noise during harvesting as well as low fuel consumption.

Pickup, cleaning units and fully hydraulic drive concept are identical to the Keiler 2 with the standard bunker. All optional equipment variants such as drive axle, swath pickup, camera systems, etc. are also available for the Keiler 2L with overloading hopper.

The Keiler 2L has a telescopic axle as well as high-volume radial tyres 850/50 R30.5 in series for the best driving comfort and soil protection. In the field, the Keiler 2L is impressively stable thanks to the axle extending to 3.50 meters. The lanes can be easily lifted with the retracted axle of 3 m. The numerous details include optional hydraulically-driven disc coulters on the left and right, very precise ridge pressure control, speed-controlled sieving conveyor automatics functions for the pintle belts 1 and 2, optimized camera monitoring with automatic video switch makes it easier for the driver by automatically displaying the point where warning limits are reached or, e.g. when driving backwards, showing the image from the rear view camera.

Essential features of the Keiler 2L with overloading bunker:

■    Optimal filling of the bunker with ultrasound sensors
■    Bunker capacity approx. 5.5 t
■    Immersion depth 600 mm at 3.5 m board wall height
■    Transfer roller with 185 mm diameter for gentle transfer to the unloading conveyor, additional cleaning of loose soil
■    Constructive separation of bunker trough and unloading conveyor for time-saving and complete bunker emptying
■    Direct drive of the rod conveyor - trouble-free unloading under all conditions
■    The sequential discharge of the bunker trough contents onto the unloading conveyor in combination with the extendable axle increases driving stability in the field and makes it easier for the driver
■    3-way foldable unloading conveyor enables flexible unloading

System description

Sensor-controlled filling of the bunker for optimal utilization of the bunker volume. The sequential discharge of the bunker contents onto the unloading conveyor in combination with the telescopic axle increases driving stability in the field and makes it easier for the driver. The 3-way foldable unloading conveyor enables flexible and comfortable unloading. This allows to achieve an overloading height of 3.5 m with an immersion depth of 600 mm into the trailer and a maximum unloading height of 4.10 m without any problems or product damage.

 

 

Automatic bunker loading

An ultrasound sensor on the bunker filling conveyor controls the automatic filling and steering of the bunker. The ultrasound sensor continuously measures the filling level to maintain the minimum fall height. The walking floor and unloading conveyor are activated simultaneously in the end position of the bunker filling conveyor. During unloading, the bunker filling conveyor is lowered automatically as soon as the distance of the sensor to the potatoes becomes larger. This is particularly advantageous during the overloading process, as the driver gets less work.

 

 

Automatic walking floor

An ultrasound sensor measures the level height on the transfer roller. The walking floor is activated automatically as soon as the specified level height of the unloading conveyor is underrun; if the the level height is exceeded the walking floor is stopped. This function enables continuous, gentle conveying of the potatoes while maintaining excellent unloading performance. The speed of the walking floor is regulated independently from the unloading conveyor. For a complete emptying of the unloading conveyor during harvesting, the walking floor can be switched off separately.