Calculate Walled Clamp Silage Density
	Brian Holmes(1) and Richard Muck(2)			The calculator is suitable for Maize & Lucerne silage
	Biological Systems Engineering Dept.(1) and			made in walled or earth clamps.
	US Dairy Forage Research Center(2)
	University of Wisconsin-Madison
	Clamp & Silage Details	Metric	Imperial
	Clamp Silo Wall Height (meters)	2.45	8.0ft
	Clamp Silo Maximum Silage Height (meters)	2.7	8.9ft
	Fresh Wt Silage Delivery Rate - to Clamp t/hour	50t
	Silage Dry Matter %	35%
	Silage Packing Layer Thickness (cm)	10	3.9in
	Rolling / Packing Tractor  - Each Tractor	Kg Weight		Tractor Rolling Packing Time - %  Filling Time *
	Tractor  1	9000	9t	50
	Tractor  2	5000	5t	100
	Tractor  3	5000	5t	100
	Tractor  4
				*Whilst the clamp is being filled what proportion of time
	Results			is the tractor/loader spent rolling / packing
	Proportioned Total Tractor Weight	14500	15t
	Number of Packing Tractors	2.50
	Proportioned Average Tractor Weight	5800	6t
	Average Silage Height (meters)	2.6	8.4ft
	Packing Factor	2426	cu yd
	Dry Matter Density (Kg DM/cu m or cu Yard)	222	169	More than 225 Kg DM/cu m is recommended
	Fresh Weight kg per cu m or cu yd	635	483	Density greater than 450 Kg DM/cu m is unrealistic