USED KEENAN 340
Overview
If you're searching for a Keenan 340 TMR mixer for sale, this high-performance feed mixer is built to deliver consistent, accurate total mixed rations for livestock operations. Known for its reliable mixing technology and efficient performance, the Keenan 340 is a trusted choice for dairy, beef, and other livestock producers.
Designed to process a variety of feed ingredients—including silage, hay, grain, and supplements—the Keenan 340 ensures a uniform blend that supports optimal animal nutrition and performance. Its mixing system helps maintain fiber integrity while achieving thorough ingredient distribution.
Built with durability and ease of use in mind, the Keenan 340 offers dependable operation with a straightforward mechanical design that simplifies maintenance and reduces downtime. It is well-suited for farms looking to improve feeding efficiency and consistency.
Whether you're upgrading your feeding system or expanding your operation, the Keenan 340 TMR mixer remains a practical and cost-effective solution for reliable feed mixing.
Available for sale is a 2010 Keenan 340 Total Mixed Ration (TMR) Mixer, a well-built and highly regarded unit designed for consistent feed mixing and long-term reliability.
Keenan mixers are known for their paddle-style MechFiber mixing system, which produces a uniform ration while maintaining fiber integrity — helping improve feed efficiency and overall animal performance. This makes them a strong choice for both dairy and beef operations focused on maximizing nutrition and minimizing waste.
This particular unit is in very good overall condition and has been recently relined, addressing one of the most important wear components on a mixer wagon. With its simple mechanical design, PTO drive system, and heavy-duty construction, this mixer is ready to go straight to work in daily feeding operations.
Specs
Volume: ~16 m³ (565 cu ft)
Load Capacity: ~6,000 kg (13,200 lbs)
Rotor: Single horizontal rotor
Paddles: 6 angled paddles
Mixing Speed: ~5–6 RPM rotor speed
System Design:
Chops, blends, and conditions feed without over-processing
Maintains fiber length for better digestion
Chops, blends, and conditions feed without over-processing
Maintains fiber length for better digestion
Drive Type: PTO driven
PTO Speed: 540 PTO
Tractor HP Required:
Low horsepower requirement (typically ~80–120 HP)
Low horsepower requirement (typically ~80–120 HP)
Discharge Type: Side discharge
Feed Control: Guillotine-style door (variable feed control)
Feed-Out: Even, controlled ration delivery
System: Electronic scale system (commonly Stad or similar)
Function:
Accurate ingredient loading
Batch tracking and ration control
Accurate ingredient loading
Batch tracking and ration control
Handles:
Silage, hay, straw, grain, and liquids
Silage, hay, straw, grain, and liquids
Bale Processing Capability (with option):
Can process round bales (partially broken)
Can process round bales (partially broken)
Magnet on discharge (common option)
Heavy-duty mixing chamber with knives
Frame: Heavy-duty steel construction
Mixing Chamber: Thick-wall tub with internal blades
Drive: Chain-driven rotor system
Running Gear: Tandem axle (typical)
16m³ TMR mixer — solid mid-size unit
Low horsepower requirement compared to vertical mixers
Paddle system = consistent mix without destroying fiber
Built for dairy and beef operations needing precise rations
Simple, reliable, and proven Keenan design
Push these hard when selling:
“Low horsepower requirement” (big selling point)
“Mech-Fiber system — superior mix quality”
“Consistent ration = better feed efficiency”
If you want, I can turn this into a full Trustworthy listing (this one sells REALLY well when written right, especially to dairy guys).
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