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Harvesting Systems

R1 Single-Plot Rotary Combine

Harvest up to 30% faster than alternative plot combines with the ALMACO R1 Single-Plot Rotary Combine. Even when operating at faster harvest speeds, this combine produces cleaner samples, has an easier cleanout, and delivers less seed damage and lower seed loss than competitive models. With easy-to-change concaves and simple interchangeable head designs, the R1 is ideal for use in seed research programs with multiple crops. Self-cleaning, top-fed rotor design enables earlier harvest of large green plants, tough stems, and high plant foliage. Seed researches gain an increased harvest window and can start harvesting plots earlier for faster advancement decisions.


Multi-Crop Dependability

Ideal for corn, soybeans, wheat, cereal, sorghum, canola, and more, this is the industry’s only true multi-crop platform. Changing harvest crop is made easy with smart header recognition and can take a single person less than two minutes. Just simply swap out sieves and adjust the concaves and it’s on to the next crop.

Maintenance Made Easy

Extensive diagnostic systems include operating system alerts, diagnostic alerts, and other operational settings. Service points are easily accessible and are designed to protect your uptime.


Harvest Data You Can Trust

Exclusively from ALMACO, the patent-pending top-fed rotary design provides over a 99% cleanout. Process plots in seconds while protecting seed from damage and reducing plot loss.
Sample Cleanliness
Seed Damage
Harvest Time (20 Plots)
Bulk Harvest Speed (Soy)
Maximum Capability
Ground Speed
Plot Loss
R1 Combine
~ 99%
~ 1%
~ 10 sec
~ 4 mph
12 mph
< 1%
Closest Competitor
~ 97%
~ 2.5%
< 12 sec
~ 2.5 mph
10 mph
< 2%

Making Your Comfort a Priority

With ergonomic controls and the seed research industry‘s quietest cab, the R2 Premium Comfort Operator Station is designed with operator experience, comfort, and safety in mind. At a spacious 106 cubic feet, expanded curved glass and added LED lighting packages provides leading visibility.


  • Weight
    ~15,000 lbs
  • Transport Height
  • Wheelbase
  • Wheel Track
    60″ – 66″
  • Turning Radius
  • Ground Clearance
  • Break-Over Angle
    20 Degrees
  • Rotor Diameter
  • Rotor Length
  • Torque Speed – High
    800 – 1200 rpm
  • Torque Speed – Low
    200 – 800 rpm
  • Diesel Tank
    66 gal
  • DEF Tank
    5 gal
  • Cummins QSF 3.8L FT4 Diesel Engine
  • Change Air Coolers
    Radiator Cooling
  • Hydraulic Reservoir
    33 gal
  • Capacity
    11 bu
  • Discharge Height
  • Wheel Motors
    TorqueKing 4WD
  • Ag Lug Tires Option 1
    14.9 – 24
  • Ag Lug Tires Option 2
    12.5 – 15
  • Interchangeable Sections
  • Standard Bar Spacing
    5/16”, 3/8”, ½”, 5/8”, and Solid
  • Alternative Bar Spacing
  • Concave Clearance
    1/8” – 1 ¼”
  • Capacity 40 bu
  • Clearance Height
  • Unload Time
    2.5 bu/sec
  • Hydraulic
    Driven and Reversible’
  • Air Lock System
    Removable Wheel
  • Capacity
    18 lb/sec
  • Tubing Diameter
  • Electronic Communication
    CAN Bus
  • Micro-Controllers
  • Sensors
  • Cameras
    Up to 4
  • Single Sieve Length
  • Single Sieve Width
  • Fixed Sieve Sizes
  • Hydraulic Sieve Fans
    450 – 1700 rpm
  • Cleaning Slope Fans
    450 – 1500 rpm
  • Air Compressor
    High Capacity

For additional specifications, please contact us today!


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