Central Alberta Hay Center

The innovative design of the Optidisc Elite cutterbar offers exclusive differential disc spacing.

1. Less Distance for a Clean Cut: Narrower spacing at diverging discs provides greater knife overlap, which results in a clean cut, even when the grass is short or light.
2. More Distance for Easy Crop Passage: Wider spacing at converging discs provides more space for the crop to pass. Cut crop is quickly carried away from the cutting area, greatly improving the cut quality.

The Fast-Fit® quick-release knife system allows an operator to rapidly change out cutting knives with the use of a simple tool, yet still retain optimum cut quality and knife life. With Fast-Fit, an operator can achieve up to 50% time savings over a standard system.

• Protectadrive® Safety: Every minute saved during the hay season is precious. Ultimate protection, from the externally removable Protectadrive disc bearing stations, provides maximum reliability and quick service. In the event of an impact between a disc and an obstacle, the shaft holding the disc can shear just above the bearing. This is thanks to its carefully dimensioned shear groove. As a result, the gear teeth are protected.
• Extra Rigidity Where it Counts: Disc bearing stations are attached by bolts that pass through the entire cutterbar. This is an exceptionally strong and secure attachment with no risk of mount being torn out of the cutterbar in case of shocks. The disc drive pinion is held precisely in place, all resulting in excellent reliability and reduced maintenance costs.
• Gear-to-Gear Power Transmission: Gear-to-gear power transmission, a staple of all KUHN disc mowers, allows for maximum power to be transferred through all gears in the cutterbar. Unlike other gear cutterbars, equal sized gears throughout reduces torque on the gear teeth and leads to unsurpassed reliability and longevity.

No one can afford to damage their mower during the peak hay season because of a forgotten or unnoticed obstacle. The mowing head will pivot up to 25° to the rear. At the same time, the mowing head will lift to clear the obstruction and then automatically reset to the original mowing position. There is no need to stop and reverse to reset the mower.

A suspension system’s performance is compromised if the weight distribution across the ground is not uniform. With the Lift-Control® range, the mowing head is suspended at the center of gravity point to ensure even weight distribution and a high-quality cut across the entire width.

When folded for transport the cutting head is centered directly behind the tractor. This facilitates greater ease when engaged in road transport. Twin mechanical locks fix the cutting head when in transport to securely hold the head in position. It’s important to ballast the tractor correctly for safety when in transport.

To attach the mower to the tractor, there is no need to change the length of the tractor linkage arms in order to balance the mower weight. Moreover, when unfolding it to working position, the cutting height is automatically set at 1.8” to 2” without needing to adjust the top link.
With an offset of 7.5”, GMD 11 Series mowers can better adapt to tractors equipped with large tires, in order to optimize maximum cutting width.