«Rostselmash» has created the original high performance threshing system for the ACROS; solid and reliable, with high capacity and careful separation, meeting the highest requirements to grain quality.
Superdrum
Its main feature is the original threshing drum of the biggest diameter in the world (800 mm). Owing to a high persistence, easily processes the humid, foul or twisted crops.
High-reliable
gear
The thresher drum gear is designed for maximal loads and equipped with the Posi-Torque type device for automatic belt take up at the twisting moment increase. It ensures an appreciable increase of the harvester efficiency. The drum rotation frequency (400…1045 rpm) is controlled from the cab by a variator.
The stone trap prevents the ingress of stones in a thresher. ‘Due to special design, its cleaning takes up at most than a minute.
At threshing of crops which grains are easily damaged, it’s necessary to work at a low speed of the drum. To this effect, the compact gearbox, reducing the rotational frequency
up to 200-450 rpm is offered (for ACROS 530 — it is optional equipment).
95% of separation
Two large lateral hatches ensure the excellent access to thresher drum.
The large diameter of the drum allows to increase maximally the concave wrap (130°), having provided the considerable separation surface (1,38 m
2) and the optimal threshing geometry — extended and smooth. In this way almost perfect separation (95%) with exclusively low grain damage is obtained. Not each multidrum system demonstrates such results!
Fine adjustment
However if jamming occured, it may be rapidly eliminated with Jam Control - the device of concave deep dropping. Unlike the harvesters equipped with the drum reverse system, this operation takes few seconds.
The concave clearance is regulated by an electromechanism. The needed clearance, which numerical value is shown on the display, is setting with the help of the button located on the control panel. Thus you may easily and without fail obtain the correct clearance for optimal threshing.