|
| Sure you can add capacity in these machines by adding width. There are also other ways. The arc length of the concave can be increased, making it "longer" in a sense. Wire spacing or hole size is also a variable, as well as the design of the concave and how it responds to trash (a plugged concave will have little to zero separation). After that, we must talk about what is in front of and behind the main threshing cylinder. Lexion has enhanced its capacity significantly by adding a pre-separating component directly ahead of the main cylinder, accomplishing multi-pass thresh, among other benefits. Some combines incorporate an open grate beneath the transition beater directly behind the cylinder, enhancing separation (NH does this). Then, even the venerable straw walker is open to variation. Stroke, speed, presence and positioning of risers and fish-backs, grate opening size, are variables that affect performance here. You can also have supplemental systems like the Lexions employ above the walkers to agitate the crop mat from above. Taking things a step further into rotary separation provides even more control over the process. | |
|
Western Roto Thresh combine
