GRIMME is introducing a new generation of its popular RH 20, RH 24 and RH 28 receiving hoppers for the 2024 season. The company says that the upgraded designs feature numerous developments in terms of capacity, crop protection, convenience and variety of equipment, making them suitable for a range of potato and vegetable crops.
For example, crop flow and throughput has been boosted with a number of design features. The new hopper floor speed can be set in a wide range from 0.2 to 6.0 m/min, while considerably deeper pockets of the hopper floor both lead to an optimised conveying effect and enable the hopper to be emptied quickly and completely. A revised “Capacity Control” feature now enables the hopper floor speed to be controlled by specifying the throughput rate in tonnes per hour.
To further increase performance and improve the crop flow, the incline angle of the hopper belt has been reduced, while the 10 cm wider front section provides an increased intake volume and makes it easier to manoeuvre trailers to the hopper. Approaching is also simplified by the new manoeuvring aid with ‘traffic light control’ and LED working lights allowing comfortable working – even in the dark.
As well as new control options, the revised design of the roller spacing adjustment, the soil cleaning and pre-grading rollers can be adapted even better to the respective operating conditions. The ‘VarioClean’ function enables high cleaning performance, especially in heavy and sticky harvesting/handling conditions, while an additional transition step has been installed within the roller package for the soil removal, which also loosens up the crop flow. In addition, the rollers in front of and behind the step can be aligned slightly upwards, which extends the dwell time of the crop on the rollers and thus increases the cleaning time. In addition, the PU spiral rollers can rotate against the crop flow in a ‘Turbo-Clean’ function.
The RH 28 provides a high throughput rate thanks to its 2.80 m wide soil cleaning rollers, while the new RH 24 XT version is also available as an efficient alternative for storing potatoes with a large sorting table behind the cleaning rollers, which can optionally be combined with an opto-electronic sorting unit. Another new machine is the RH 24-60 S, which rises in a straight line and can be equipped with an onion distributor, an additional presentation belt (i.e. a transfer belt between the hopper floor and roller installation) and plain rollers, which are made of steel. The RH 24-60 S is particularly suitable for sensitive crop such as onions and carrots.