The MDH-135 Middle Duty Flail Mower is built for 25–40 HP tractors with a CAT I (CAT II bushings included) three-point hitch. It offers a 53″ cutting width, 50 cm (20″) hydraulic side-shift, and adjustable cutting height from 0.75″ to 2.95″, making it ideal for maintaining fields, orchards, vineyards, paddocks, and roadside turf up to 1″ brush and ~30″ (75 cm) grass height. The hydraulic offset lets you mow cleanly past the tractor’s tire tracks and work under fences and tree lines without crowding obstacles.
The MDH-135 uses 800 g / 1.76 lb forged, galvanized hammer flails mounted on a 2200 RPM electronically balanced rotor driven by a 3-belt system. A heavy 5.3″-diameter self-cleaning rear roller keeps cut height consistent over uneven terrain. Power is delivered through a Comer gearbox with a 540 RPM PTO (optional 1000 RPM pulley configuration), while the rotor runs on SKF ball bearings with CNC bearing seats for durability and smooth operation.
Service is straightforward: a belt-tension inspection window lets you check belt tension in seconds, and the replaceable counter knife plus front safety flaps improve chopping efficiency while minimizing debris ejection. The mower ships fully assembled in a wooden crate; install the quick-attach CAT-1 hitch (CAT-2 bushings included), connect the single hydraulic circuit for side-shift, fit the safety bars and PTO, and you’re ready to mow ~1.3–2.6 acres/hour depending on conditions.
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MDH-Series Product Manual.pdf
Two-Year Warranty
The MDH-135 Middle Duty Flail Mower (SKU: VTI-MDH135) has been rigorously tested to withstand tough conditions and includes a two-year warranty on the machine.
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MDH-135 Parts Guide.pdf

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