Maximize Your Dairy Operation's Efficiency: The Complete Guide to Sizing Your Vertical TMR Mixer
A well-balanced Total Mixed Ration (TMR) is essential for maximizing milk production and maintaining the health of dairy cows. For dairy producers, the equipment used to create this blend is just as important as the ration itself. One of the most critical pieces of equipment is the vertical TMR mixer. Understanding how to size a vertical TMR mixer effectively can lead to better efficiency, improved feed quality, and ultimately, enhanced profitability.
Before considering mixer capacity, dairy producers should assess their herd size and composition. The number of cows and their production stage (dry, transition, high-lactation) will significantly influence the volume and type of feed required. The general rule of thumb is approximately 5-6 Lbs. per cow per day. Typically, TMR mixers are measured in cubic feet, and a mixer should be able to hold enough feed for your cows for at least one feeding period, ideally two or more.
After determining the daily feed requirements, the next step is to select the appropriate mixer volume. Mixers are available in several sizes, generally ranging from 250 cubic feet to over 1200 cubic feet. A good rule of thumb for sizing is to have a mixer that allows for 10% extra capacity to accommodate variations in feed ingredients and avoid mixing delays.
For a herd of, say, 100 cows requiring 5-6 lbs. per cow per day, producers would need a mixer that can handle a single batch effectively. This would typically mean looking for a mixer with a minimum working capacity around 350 cubic feet, given the feeding frequency and desired batch sizes.
The efficiency of the mixer also plays a crucial role in overall feed quality. Vertical mixers are designed to blend feed evenly while providing the necessary shear force to break down large particles. When sizing a TMR mixer, consider the volume of feed versus the time it takes to achieve a uniform mix.
In general, plan for approximately 15-20 minutes per batch for mixing, which allows for adequate internal circulation. Adjustments may be needed depending on the complexity of the ration. If the feeding routine includes higher fiber ingredients or if various feed types are combined, opt for mixers with higher horsepower to enhance mixing capabilities.
Beyond capacity and mixing efficiency, other factors should be considered when selecting a vertical TMR mixer:
1. **Ingredient Variability**: Different forages and concentrates require specific mixing times and methods.
2. **Power Options**: Consider whether to choose between truck, trailer or stationary options, depending on the equipment already available on the farm.
3. **Durability and Maintenance**: Assess the build quality, as well as the ease of maintenance when selecting a mixer. Durable materials and simple designs often lead to longer-lasting equipment.
Sizing a vertical TMR mixer requires careful consideration of herd size, feed requirements, mixing efficiency, and various other factors. By investing time upfront to evaluate these elements, dairy producers can select a mixer that not only meets their operational needs but also supports the health and productivity of their herd. With the right equipment, producers can ensure their dairy operations run smoothly and profitably.