2018 JOHN DEERE S650 at www.pedersenmachine.com2018 JOHN DEERE S650 at www.pedersenmachine.com

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S-Series Combines offer unprecedented rotary threshing and separating performance. The S650 is perfectly sized for a 6-row corn head or 25-foot platform.

Key features
• Flexible cab options
• High-performance S-Series cleaning system reduces slope sensitivity
• Variable drive
• 250-bu (8,900-L) S-Series grain tank

TriStream™ rotor designed for coarse grains and easy threshing small grains

The TriStream rotor is unique to John Deere because it features a slightly tapered design in the threshing area for best in class grain quality while dramatically reducing the growling that often comes with heavy rotor loads. The TriStream rotor is recommended for producers who harvest mainly coarse grains along with easy threshing small grains.

The spiral vanes surrounding the rotor, guide the crop material through the threshing and separating area in a pull and release affect to improve performance. This John Deere S-Series Combine feature is going to generate less power consumption.

Feature benefits:
• TriStream rotor technology reduces the force required to move material through the combine by as much as 20 percent, maximizing fuel efficiency.
• The rifling grooves on the threshing elements allow the bullet-shaped rotor to move material more efficiently maximizing crop threshing performance and grain quality.
• Heavy-duty vanes on the top covers propel the crop smoothly rearward through the length of the rotor ensuring all the threshed grain is separated.


9.0 l \ 548 cu in.
Emission Level
Final Tier 4 / Tier 2 (Australia/New Zealand)
Fuel capacity (L/gal.)
950 / 250
Rated speed (rpm)
2,200 rpm
Rated power (kW/hp) @ Rated Speed - T4
225 / 300
Power boost @ rated speed (kW/hp) - T4
25 / 34


Drive type
Conveyor chain slat type
Cast iron
1,397 / 55
Length (mm/in.)
1,727 / 68
Feed Accelerator, Stone Trap (FAST)


Separator type
Rotor length (mm/in.)
3,124 / 123
Rotor diameter (mm/in.)
762 / 30
Rotor speed range (rpm)
Concave area (m2/in.2)
1.1 / 1,705
Separating area (m2/in.2)
1.54 / 2,390
Discharge grate area(m2/in.2)
0.36 / 555


Front chaffer (m2/in.2)
0.5 / 801
Chaffer (m2/in.2)
2.5 / 3,824
Sieve area (m2/in.2)
2.1 / 3,255
Total cleaning area (m2/in.2)
5.1 / 7,905
Cleaning fan speed (rpm)

Grain handling

Grain tank size (L/bu.)
8,900 / 250
Unloading auger length (m/ft.)
6.5 / 21.5
Unloading rate (L/sec. / bu/sec.)
77 / 2.2

Base Weight

Weight w/o head (kg/lb)
17,250 / 38,030