The D&M Tow-Master Vineyard Duster helps growers stay on schedule with reliable, even sulfur coverage across every row. Designed for performance and longevity, it combines a 400 lb hopper with an 800 lb storage box, giving operators extended run time between fills. Competing dusters often use the fan itself to propel sulfur, which causes buildup on the blades. That buildup leads to imbalance, vibration, and downtime for cleaning. If left unchecked, it can result in costly gear train repairs and lost field time.
D&M eliminates these issues with a precision-engineered air induction system. In this design, sulfur never contacts the fan. Instead, it is introduced evenly into a high-velocity air stream created by a precision balanced steel impeller style fan. Using dry/cured materials, the result is clean airflow, no buildup, and no vibration. The two-speed gearbox provides flexibility under different conditions, allowing the operator to maintain consistent material output.
The Tow-Master’s positive feed horizontal auger with a mechanical hopper agitator ensures a steady and uniform sulfur supply. This auger system is powered by the tractor’s hydraulic system, requiring approximately 8 GPM of hydraulic flow. A hydraulic flow-control valve allows the operator to fine-tune the auger speed and sulfur rate quickly.
Outlets can be adjusted in minutes to match different trellising and row spacings, including narrow and V-trellis vineyard systems. This flexibility allows sulfur to be directed precisely at the bunch line, targeting the areas where protection matters most. The independent opposed outlet heads deliver accurate, balanced coverage on both sides of the row, improving efficiency and minimizing waste.
Another core advantage of the D&M Duster is its feed calibration system. Unlike other dusters that rely on metering gates, which can bridge, clog, or cause puffing, the Tow-Master uses hydraulic flow control to maintain a consistent feed rate. This system eliminates the chance of sulfur restriction, ensures smooth distribution, and provides predictable results across different ground speeds.
The Tow-Master’s heavy-duty rectangular tube chassis provides durability for long-term use in rugged vineyard conditions. It features a drop-pin hitch, torsion axle, and 7.60 x 15 field tires for stability during towing. Each hub supports up to 3,500 lbs, and the overall unit maintains a 12-inch ground clearance with a total weight of approximately 1,154 lbs. The precision-balanced design reduces maintenance and extends equipment life, keeping growers productive through the sulfur season.
The D&M Tow-Master is simple in design yet refined through years of proven field application. With no belts, no pulleys, and no sulfur buildup, it offers dependable operation and reduced maintenance costs. Built for reliability, efficiency, and consistent coverage, it has earned its place as the first choice for the grape-growing industry.
