Grain Roller Mill | Roto-Mill
Roller Mill Overview
Roller mills provide an efficient and economical way to process whole grains into feed stuffs that are more palatable for livestock to consume and utilize.
These mills use a pair of corrugated rolling cylinders, where one cylinder has grooves and the other does not, to separate the grains from their coatings
ROTO-MILL ROLLERS
Herd-Boss offers a complete line of roller mills available in capacities from 600 to 5000 bushels per hour depending on roll cut and material being processed. Roto-Mills are available as trailers with choice of 540 or 1000 rpm drives, as well as stationary models. Standard features include chill cast rolls, 16” standard roll diameter, and magnetic intake grate.
Standard Features
Chill cast rolls are the heart of the Roto-Mill. The roll material for these is cast from iron to a specific shape and size as opposed to other manufacturers that make their rolls from tube or pipe. This material and process results in superior material and longer lasting milling surface. Additionally, Roto-Mill rolls can be separated from the drive shafts if needed for re-grooving for a cut size change. Roto-Mills come standard with same speed rolls.
Roto-Mill rolls are 16” in diameter on all models – up to 7” larger than some competitors’ rolls. Larger rolls have a larger pinch/processing area than smaller rolls. The larger area processes more material for every revolution. More material per revolution means more grain processed more efficiently.
Roto-Mills come standard with a magnetic intake grate to collect any hardware that is generated during the harvesting process.
THE SPECS | RMC 24 | RMC 30 | RMC 36 | RMC 48 |
---|---|---|---|---|
Roll Width X Diameter | 24×16 in (60.9 x 40.6 cm) | 30×16 in (76.x x 40.6 cm) | 36×16 in (91.4 x 40.6 cm) | 48×16 in (121.9 x 40.6 cm) |
Shaft Diameter | 1 15/16 in (4.9 cm) | 2 7/16 in (6.1 cm) | 2 15/16 in (7.5 cm) | 2 5/16 in (7.5 cm) |
Min (PTO) HP | 60 | 80 | 95 | 110 |
Standard PTO | 540 | 540 | 540 / 1000 | 540 / 1000 |
Auger Discharge | 7 or 10 in (17.8 or 25.4 cm) | 8 or 10 in (20.3 or 25.4 cm) | 10 or 12 in (25.4 or 30.5 cm) | 12 or 14 in (30.5 cm or 35.6cm) |
Hydraulic Feed Auger | 6 or 8 in (15.2 or 20.3 cm) | 8 or 10 in (20.3 or 25.4 cm) | 10 or 12 in (25.4 or 30.5 cm) | 12 in (30.5 cm) |
Barley (Per Hour) | 600 bushels | 800 bushels | 900 bushels | 1200 bushels |
Corn (Per Hour) | 2500 bushels | 3125 bushels | 3750 bushels | 5000 bushels |
Oats (Per Hour) | 500 bushels | 600 bushels | 750 bushels | 1000 bushels |
Wheat (Per Hour) | 1000 bushels | 1200 bushels | 1500 bushels | 2000 bushels |
Roller Mill Models
Roto-Mill RMC 24
24” x 16” x 6.5 CPI roller mill, 1:1 roll drive, rated @ 2500 bu/hr dry corn, 540 PTO, 6” x 10 ft hydraulic drive intake auger, manual swing – will require pit or plastic hopper, 10” x 12 ft discharge auger with manual angle adjust and spout, adjustable intake grate with magnets.
Roto-Mill RMC 30
30” x 16” x 6.5 CPI roller mill, 1:1 roll drive, rated @ 2500 bu/hr dry corn, 540 PTO, 6” x 10 ft hydraulic drive intake auger, manual swing – will require pit or plastic hopper, 10” x 12 ft discharge auger with manual angle adjust and spout, adjustable intake grate with magnets.
Roto-Mill RMC 36
36” x 16” x 6.5 CPI roller mill, 1:1 roll drive, rated @ 3750 bu/hr dry corn, 540 PTO, 12” x 12 ft hydraulic drive folding intake auger, 12” x 12 ft hydraulic folding discharge auger with hydraulic angle adjust and spout, adjustable intake grate with magnets.
Roto-Mill RMC 48
36” x 16” x 6.5 CPI roller mill, 1:1 roll drive, rated @ 3750 bu/hr dry corn, 540 PTO, 12” x 12 ft hydraulic drive folding intake auger, 12” x 12 ft hydraulic folding discharge auger with hydraulic angle adjust and spout, adjustable intake grate with magnets.
Options
The number of grooves cut in each mill roll determines the size of the particle that will be allowed to pass between the rolls. The higher the number of grooves per inch, the smaller the depth of each groove and the finer that each processed particle will be. Lower quantity cuts per inch will increase capacity per hour and vice versa. Roto-Mill rolls are available in 4 to 10 cuts per inch.
Intake auger choices include a standard hydraulically driven hopper/pit auger, or for semi-trailer unloading there is a truck hopper that power rotates under the trailer with a pair of 12VDC drive motors.
Roto-Mills that have an auxiliary through shaft are designed to power a secondary implement that is connected behind them, such as a bagger. This allows for multiple processes to occur simultaneously.
Differential Drive
When additional processing of material is desired, Roto-Mills can be equipped with a differential drive. This changes the speed relationship of one roll to the other by 40%, and adds additional shearing to the processing of the grains.