Overview
In a Class of Its Own
With working widths of 24' and 30’, and many of the features KUHN mergers are known for, the MM 701 & MM 890 provide operators with the working power of a triple merger in the compact size of a twin.
KUHN’s twin hay mergers provide operators with simplicity, versatility, and dependability. The KUHN MM 701 and 890 Merge Maxx® hay mergers offer 24’ and 30’ pickup widths respectively. Designed for mid-to large dairy and commercial forage operations they can merge to the left, right or 50/50 split creating even windrows for the forage harvester. The floating windguard ensures smooth and even windrows to make the forage harvester more efficient, while the crop netting improves leaf retention in the windrow. Simple and durable mechanical flotation on each head eliminates the need to engage float via the tractor's hydraulics. The IntelliMerge™ ISOBUS control system is an industry exclusive and standard on both the MM 701 and 890, improving operator ergonomics and operational efficiency.
Features
Multiple Delivery Options
The MM 701 and 890 hay mergers can merge crop to the left, right, split or with either wing in the raised position. Both models have the ability to 50/50 split leaving all windrows with an even amount of crop for better harvesting efficiency. Having the ability to raise the wings independently is particularly useful for opening up fields, merging around field obstacles or cleaning up point rows in irregularly shaped fields.

IntelliMerge™ ISOBUS Control System
The IntelliMerge™ ISOBUS control system allows the operator to run the machine, make adjustments, receive performance feedback and carry out diagnostics. Operators can tailor their machine to field and crop conditions to maximize their efficiency.
Constant Float® Suspension
A simple and effective mechanical suspension system is utilized for superior flotation. This unique design, inspired by the proven KUHN trailed disc mower, eliminates complicated hydraulic requirements and the need for tractor float valve engagement, unlike other mergers in the industry. The range of suspension on each pickup is 14” (+8”, -6”).

OptiSense™ Belt Stall Indicator
The OptiSense™ belt stall indicator alerts the operator when the belts start to slow down when approaching the capacity of the machine. This gives the operator a chance to react before the machine plugs. If the belts stop, the sensor will shut down the machine to avoid damage to the belts and further plugging of the machine. The conveyor direction arrow will be red to identify the stalled conveyor. This is done by monitoring the idler roller speed on each conveyor. This feature helps the operator optimize performance, keeping the machine moving across the field for improved efficiency.

Narrow and Simple Transport
The simple folding design allows quick transition from field to road. Transport is a narrow 10’3” (3.1 m) wide and transport height is 12’ (3.7 m). Balanced tongue weight during transport and in the field helps you maintain control at all times. Field to transport position is accomplished quickly as only one hydraulic valve per head is used for folding.

Auto-Lube Grease Pump
The automatic grease pump is a field installed option and eliminates daily greasing. The grease pump sends grease through the central lubrication system to all of the daily grease points. The central lubrication system and the grease pump reduce maintenance time and keep the machine running efficiently.

ISOBUS Compatibility
To simplify operation with a wide variety of tractors, the MM 701, MM 890, MM 1101 and MM 1301 are ISOBUS compatible for plug and play compatibility. If the operator has an ISOBUS compatible terminal, they can control all machine functions on that screen. For controlling the machine on non-ISOBUS tractor, an operator can purchase the VT 30, CCI 50, CCI 880 or CCI 1200 with harness running off a 12V power source. (VT 30 - only MM 701 and MM 890)

Easy User Interface
These user interfaces save you valuable time and money in order to get you in and out of the field faster. Let's look a bit closer into the heart of the world's first ISOBUS compatible hay mergers.
With the electronically controlled speed adjustment system, an operator can quickly and easily adjust pickup speed inside the cab on-the-go to perfectly match crop conditions. With this you can maximize leaf retention, especially if merging drier legumes such as alfalfa. If heavy grass crops, the pickups can also be sped up to promote faster working speeds.
In automatic mode, the merger will adjust pickup speed automatically as ground speed varies. This maximizes pickup efficiency while minimizing damage to crop and wear of the pick up
Acre and hour counters can be used by reading the tractor's speed and machine width to aid in recording custom operations.
The electronic conveyor directional control allows operators to rapidly change the direction from all left, all right, or split directly from the operator's seat by simply touching the appropriate key. Operators merging in fields with varying volume throughout may find this particularly valuable.
Cleanout mode can be activated in the instance of a plugged machine. This feature lets the operator unplug and cleanout the machine from the cab without ever having to leave the tractor cab.
Pickup efficiency indicates relative capacity of the pickups giving a visual indication to the operator of the machine capacity.
The hydraulically adjustable pickup height allows an operator to easily make changes from the terminal via the skid shoe adjustment. Height change is synchronized and accomplished through the cylinder mounted on each head. Relative height is visible via the gauge on the terminal.

Specifications
MM 701 | MM 890 | |
Working Width | 24' (7.3 m) | 30' (9 m) |
Number of Pickups and Conveyors | 2 | 2 |
Individual Pickup Width | 12' (3.7 m) | 15' (4.6 m) |
Pickup height | 5/8" - 3 1/8" (16 - 80 mm) | 5/8" - 3 1/8" (16 - 80 mm) |
Conveyor Length | 11'10" (3.7 m) | 14'10" (4.5 m) |
Conveyor Width | 3' (0.9 m) | 3' (0.9 m) |
Hitch | 2-point swivel hitch, Cat. 2, 3N and 3, quick hitch compatible | 2-point swivel, Cat. 2/3N/3/4N, quick hitch compatible |
Discharge Capability | Right, left, or 50/50 split | Right, left, or 50/50 split |
Pickup Speed Control | via ISOBUS terminal | via ISOBUS terminal |
Conveyor direction control | via ISOBUS terminal | via ISOBUS terminal |
PTO | 1 3/8" - 21 spline | 1 3/8" - 21 spline |
PTO Speed | 1,000 rpm | 1,000 rpm |
Minimum PTO power requirement | 100 HP | 120 HP |
Number of Tine Bars | 6 | 6 |
Required tractor electrical connections | 1 SAE 7 pin light connection, 12V power, ISOBUS plug | 1 SAE 7 pin light connection, 12V power, ISOBUS plug |
Required tractor hydraulic connections | 2 DA; no float valve required | 2 DA; no float valve required |
Machine weight approx. | 9,800 lbs (4,445 kg) | 10,700 lbs (4,855 kg) |












