MechFiber 365

Height: 3201mm (126″)
Width: 2665mm (105″)
Horsepower: 105 HP
Dairy Cows per load: 140
Finishers per load: 280

MechFiber 370

Height: 3812mm (126.5″)
Width: 2847mm (112″)
Horsepower: 110 HP
Dairy Cows per load: 130
Finishers per load: 200

MechFiber 380

Height: 3200mm (118″)
Width: 2800mm (110″)
Horsepower: 115 HP
Dairy Cows per load: 150
Finishers per load: 230

MechFiber 400

Height: 3380mm (133″)
Width: 3000mm (118″)
Horsepower: 120 HP
Dairy Cows per load: 190
Finishers per load: 300

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KEENAN MechFiber 370

The MechFiber 370 sets new standards in ration mixing, combining KEENAN’s unique MechFiber technology with high capacity. It will feed approximately 100 cows in a single load. This mixer is ideal for medium to large scale producers. With its higher auger, position feeding into high troughs or barriers is done with ease. It comes with or without Bale Blending technology. There are a variety of optional extras that can also be chosen. 

Superior MechFiber mixing

This latest generation KEENAN mixing system uses six angled paddles rotating at just 7rpm. A new knife design and greater clearance at the ends of the paddle-arms allows material to move freely, to further improve mixing.

Lower power, torque and fuel requirements

A typical power unit to tow a loaded MechFiber 350 would be a 90 HP tractor. To drive the mixer, when loaded, requires approximately half this power delivering substantial savings in overall fuel consumption (and often size of tractor) compared with other mixers. Simple two-chain drive system

Simple two-chain drive system

KEENAN’s simple two-chain drive system has an unbeatable track record of reliability. A primary drive chain and three sprockets transmit power to the auger and idler. A second sprocket powers the much larger paddle sprocket.

Automatic oiler

An automatic oiling system can be fitted as an option and is operated by the hydraulic rams opening and closing the guillotine door. This delivers ‘pulses’ of oil to the drive chains, lubricating them to the optimum levels for safety and improved chain life.


We can customise our machines to your needs:

• Higher auger ideal for high troughs
• Automatic oiler & 2 chain drive system
• Bale Handler option
• Full length auger for consistent feed-out
• Variable Feed Control & Feed-out height

Bales Processed in 90 Seconds

KEENAN Bale Handler Series III. The latest bale handler from KEENAN with the ability to quickly process all types of bales and forages.


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KEENAN MechFiber 380

The MechFiber 380 is designed for the farm that wants to feed large numbers of animals in a short period of time. With a payload of 9,000kgs, the machine is capable of feeding up to 150 dairy cows or 350+ fattening cattle for 24 hours with a single load. Aesthetically closer to the MechFiber 400, it manoeuvres more like the smaller MechFiber 360, with some unique stand-alone product features.

As with all KEENAN Mixer wagons, the MechFiber 380 retains the paddle mixing system ensuring a consistent ration is produced each and every time.

Body Design

The body design has been optimised to carry the curve of the body around closer to the top of the knife, to reduce, or remove the effect of a pinch point created after the top knife. This has been designed to reduce the peak power requirement and reduce the stress on the machine in operation.

Oil Bath

The principle of the complete oil bath for the chain drive has been retained from the MechFiber 400, but simplified from both a build and maintenance point of view.

Drive line access

The access to the oil bath drive line has been improved by the use of a sealed bath, with two full depth fiberglass doors. These allow for both ease of access and excellent access to the complete drive line in open operation. 

Body blades

The number of body blades, set up and location has been reviewed and optimised. All blade are located within the main body of the machine nominally between the 5 and 7 o’clock positions. This ensure that material is chopped efficiently without increasing power requirement.


We can customise our machines to your needs:

• Height and Width
• Heavy duty knives
• Rear feed out
• Elevator tray

Bales Processed in 90 Seconds

KEENAN Bale Handler Series III. The latest bale handler from KEENAN with the ability to quickly process all types of bales and forages.


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KEENAN MechFiber 400

The MechFiber 400 is ideal for the larger operator requiring higher work rates, higher capacity, durability and trouble free operation. It has a heavy duty 4-Chain drive system and a capacity of 10 tonnes.

Lower power, torque and fuel requirements

A typical power unit to tow a loaded MechFiber 400 would be a 120 HP tractor. To drive the mixer when loaded, requires approximately half this power reflecting in a dramatic saving on overall fuel consumption by the larger tractor compared with other mixers.

Heavy duty chassis, steering axles and road-suspension

Tandem axles are fitted as standard and for utmost manoeuvrability steering axles are optional (with 3,000mm steering axle). The heavy duty chassis is designed to give the driver improved weight transference and improved stability when travelling at road speeds.

Four-chain drive system

The four-chain drive system is designed to extend the working life of the machine. This is all achieved by shortening the drive ratio on each individual chain and returning the drive to the auger with an independent chain. All four chains are tensioned by a spring assembly.

Oil bath

The four-chain drive system operates in an oil bath keeping all chains lubricated to their optimum levels for safety and longevity. The oil is constantly fed to the chains through a series of strategically placed channels and recycled back to the oil bath. This further improves the dissipation of heat and increases the working life of the chains.

Central greasing

For ease of maintenance ‘central greasing’ is fitted as standard to the MechFiber 400. An 18 port manifold allows you to grease those hard-to-reach bearings quickly and easily from one single point.


Baleblend Big Bale processing

The MechFiber 400 can be supplied with the latest Baleblend bale chopping technology. Big round or square bales of forage placed directly on the machine’s top cradle are chopped and incorporated into the ration in a matter of minutes.

We can customise our machines to your needs:

• Height and Width
• Heavy duty knives
• Rear feed out
• Elevator tray

Bales Processed in 90 Seconds

KEENAN Bale Handler Series III. The latest bale handler from KEENAN with the ability to quickly process all types of bales and forages.


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