# Maximizing TMR Mixer Efficiency: Choosing the Right Bale Size and Characteristics for Optimal Performance
As we approach this year’s haying season, it is crucial for those who utilize vertical TMR mixers to consider how bale size and characteristics influence mixer performance and capacity.
## Traditional vs. TMR Feeding
In traditional cow-calf feeding, larger bales (e.g., 6’x5′) were preferred to minimize production costs and handling time. However, TMR feeding focuses on optimizing batching to meet animal nutritional needs.
## Bale Size and Mixer Capacity
Vertical TMR mixers have inherent limits on bale size handling based on capacity (cu. ft.) and the number of augers. Capacity is primarily determined by hay density, with an approximate value of 3 pounds per cu. ft. for long hay and 6-7 pounds per cu. ft. for chopped hay.
## Practical Considerations
To prevent spillage, it is recommended to use a mixer with at least 50% additional capacity than the volume occupied by the hay. For example, a 450-500 cu. ft. mixer is generally required for a 1000 lb. bale of long hay.
Adding more bales becomes problematic due to the increased processing time. It is generally not practical to add more than two bales at a time.
## Processing Times
Research with LEO mixers has shown that the processing time for the first bale is approximately 6 minutes, while the second bale adds an additional 10 minutes. Adding a third bale significantly increases processing time due to the increased volume and the need for the lower-density hay to “float” on the processed hay.
## Bale Weight Factors
Bale weight is influenced by size and packing density. Standard balers can pack hay up to 10-12 pounds per cu. ft., while high-density balers can reach 16-18 pounds per cu. ft.
## Mixer Dimensions and Number of Augers
The space between the auger and mixer wall can limit bale size handling. Twin auger mixers provide more space for hay to drop into the cutting path.
## Recommended Mixer Sizes
Table 1 provides recommended minimum mixer sizes for processing standard density bales of various sizes. Bales that have been pre-chopped may fit in smaller mixers due to their higher density.
## Wet Bales
The hay equivalent (HE) content of wet bales can be calculated using the formula:
HE = wet bale weight x (dry matter content (%) /100) / 0.85
Larger wet bales may be processed in a given mixer due to their higher moisture content and reduced tendency to spill.
## Contact LEO Agriculture
For customized recommendations and expert advice, contact LEO Agriculture at www.leo-ag.com. We are a global manufacturer and distributor of TMR mixers and manure spreaders. We offer quotations and exceptional service to meet your specific needs.
## Disclaimer
This article was written by AI and may contain inaccuracies. Please consult a LEO professional for guidance.
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Key Words: Vertical,TMR,Feed,Mixer,Manure,Spreader,LEO, Agriculture, Bale Size, Mixer Capacity, Processing Times, Bale Weight, Mixer Dimensions, Wet Bales
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