Versatility Has Never Been So Simple

High Performance that Provides Operators with Versatility Using a Single Pickup

Contact your dealer for pricing

Find a dealer near you

The KUHN MM 300 is the merger for you if you’re looking for high performance and simple operation at an economical price. Designed to work with mower conditioners from 9’ to 18’ of cutting width, this merger features a wide pickup and belt cross conveyor that can easily be shifted for ideal windrow placement. The windguard, exclusive in its class, evens out crop flow for superior windrow uniformity. Quickly merge two swaths into one in a single pass, or three windrows in two passes for improved harvester efficiency.

Your benefits

Versatile & Simple

Illustration of the various options the KUHN Merge Maxx 300 Merger can merge hay.

Multiple Merging Possibilities

The merger can be operated pulling directly behind the tractor, extended all the way to the right, or anywhere in between for compatibility with various sized mower conditioners.

Simple, Efficient Windguard

This standard, curved windguard greatly helps create fluffy, well-formed windrows by keeping the crop close to the pickup and delivering it to the center of the belt. This control smooths out crop bunching, resulting in improved harvester efficiency. Simple adjustment points on each end allow the operator to tailor the windguard to the exact crop type and volume. An optional high-capacity windguard is available for operators who merge higher volume crops, such as ryegrass.
The windguard on a KUHN Merge Maxx 300 hay merger.

Heavy-Duty Conveyor

The 15-degree angled conveyor provides a seamless transition for the crop as it comes off the pickup. This allows the full capacity of the belt to be utilized in addition to naturally inverting the crop upon discharge.
The heavy-duty conveyor on a KUHN Merge Maxx 300 hay merger.

Outstanding Flotation

The floating pickup assembly follows the terrain, supported by large-diameter gauge wheels that set the pickup height. This maintains the tine height so that valuable forage is picked up and the crop stubble is protected.

Self-Contained Hydraulics

Attaching directly to the tractor PTO, the self-contained hydraulic drive allows the merger to be operated by most tractors regardless of hydraulic capacities.

Simple, Time-Saving Features


Belt Tension

The conveyor belt is self-cleaning and requires no tracking adjustment. The quick-release tensioning system simplifies storage and maintenance.

Simple Drawbar Attachment

Attachment to the tractor is simple. The drawbar hitch allows for fast attachment without cumbersome hitch extensions.

Split-Bearing Design

The two-piece poly tine bar bearing greatly simplifies periodic maintenance. Unlike competitive machines, which must remove tine bars and tines to replace worn bearings, the split design allows you to replace the bearing in under one minute. Additionally, bearing life is maximized and friction properties are minimized with a specially formulated bearing material.

Options Tailored to Make your Life Easier


In-Cab Control Terminal

The optional electro-hydraulic controls manage merger functions on the go, fine-tune pickup speed, gather crop at end rows, shift the conveyor, and engage the optional extension, all conveniently from the tractor seat.

All of the following options require the in-cab control terminal.

Electronic Variable Pickup Speed Control

A manual valve is located on the machine for adjustment as needed. With the optional electronically controlled system, you can quickly and easily adjust the pickup speed from inside the cab on-the-go, to perfectly match crop conditions. With this option you can maximize leaf retention, especially if merging drier legumes, such as alfalfa.

Hydraulic On/Off Control

Create clean windrows with neat ends to maximize crop uptake and simplify the harvesting process. The simple, single button control allows the belt to be disengaged quickly to keep the crop from being sent into the headland at end rows. The gathered crop can then be sent into the subsequent windrow.

Conveyor Side Shift

You can manually adjust the conveyor up to 2’ to the right to match up with differing mowers and windrow widths. With the optional hydraulically controlled conveyor side shift, you can perform the same function without leaving the cab. This is especially useful if merging behind multiple cutting units of varying widths.




Working width
Pickup width
Conveyor length
Conveyor width
Right side discharge
Hitch type
Hydraulic tongue swing
Hydraulic header lift
Self-contained hydraulic drive
Manual pickup speed adjustment
Manual conveyor side shift
Transport width
PTO speed
Minimum PTO power requirement
Road lights and signaling
Required tractor hydraulic connections
Approximate machine weight
Gauge wheels under pickup
MM 300
9' - 18' (2.7 - 5.5 m)
9'10" (3 m)
12'6" (3.8 m)
3' (1 m)
2' (6.1 m)
12'6" (3.8 m)
9.5L X 15 (8-ply)
540 or 1,000 rpm
50 hp (37 kW)
2 DA (6 gal/min-1,500 psi)
3,630 lbs (1,647 kg)
18 X 8.5-8


Customer Spotlight: MM 300

  • MM300 Sam Chapin
    Sam Chapin Livestock and crops producer

    "Personally, I can’t remember not having KUHN equipment on the farm. The control box makes operation for us simple and efficient (MM300). You never have to leave the tractor, which means few to no slowdowns and a safer working experience. The option of the fold-out extension allowed us to move up to a larger mower without having to spend tens of thousands of dollars on a larger merger. We constantly use the conveyor side-shift function depending on the field, cutting or obstacles (such as power poles and pivots being in the way). The control box allows us to more easily adjust to these changing variables with relative ease."

    Read this review

All the testimonials

Available applications: MM 300

Logo KUHN ForageXpert

KUHN ForageXpert

For a powerful forage harvesting chain. This new application is available to help you find mowers, mower conditioners, tedders and rakes best adapted to your needs. It will help you optimize forage harvesting according to your current or future equipment purchases.
Download on the App Store

Check all our other KUHN apps to optimize your farm and your life

Get it on Google Play