Available in 9 and 12 metre working widths, the Optimer L is designed for high quality shallow cultivation at operating speeds of 13 to 18km/hour. With a working depth range from 3 to 10cm, it is sufficiently versatile to fulfil a range of roles including enhanced crop residue management, stale seedbed creation and fine seedbed preparation.
Two rows of 510mm diameter discs operate with high rotation speeds and are set at 16˚ horizontal and 6˚ vertical for optimum tilth creation. Discs are available with small notches (for shallow cultivation) or large notches (for deeper soil penetration) and are mounted individually on support arms with each having four integral polyurethane elastomeric blocks to provide protection and depth control. Each disc has a single maintenance-free bearing on the outer side, which – along with an underframe clearance of 55cm – ensures clear flow of residues through the machine and prevents disruptions due to jamming.
Working depth on the Optimer L is hydraulically assisted, allowing simple and accurate adjustments to be made. This is maintained across the full width of the machine through hydraulically-controlled pressure on the extension cylinders (KUHN’s Steady Control system).
The Optimer L is fitted with KUHN’s Double-U self-cleaning and anti-clogging roller, designed to provide optimum soil tamping. By turning on the roller at the headlands, the machine maintains stability and minimises any risk of soil compaction in these areas.
Machines fold into a compact (3m width, 4m height) transport position through a safe and secure four step process, activated by a mode switch on the control panel that also includes an operating depth indicator and an extension position guide.