Satoh Bison S670
The Satoh Bison S670 is a tractor produced by Satoh. It is equipped with a 79.6 ci 1.3 L engine. The listed engine power is Diesel (listed): 30 hp / 22.4 kW. Transmission: 8 forward and 2 reverse. Operating weight: 2313 to 2675 pounds.
Engine Power
Diesel (listed): 30 hp / 22.4 kW
Fuel & Capacities
10.6 gal
40.1 L
Transmission
8 forward and 2 reverse
Operating Weight
2313 to 2675 pounds
Overview
 | 1980 - 1984
Compact Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Satoh |
Compact Utility tractor | |
Satoh S670 Engine | |
|---|---|
Mitsubishi 1.3L 4-cyl diesel | |
Engine details ...  |
Satoh S670 Transmission | |
|---|---|
8-speed gear | |
Transmission details ...  |
Satoh S670 Power | |
|---|---|
Engine | 30 hp
22.4 kW |
PTO (claimed) | 25 hp
18.6 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Steering | manual |
power OptOptional | |
Drum brakes | |
Open operator station. | |
Capacity | |
|---|---|
Fuel | 10.6 gal
40.1 L |
Hydraulic system | 1.25 gal
4.7 L |
Steering | 0.9 qts
0.9 L |
Hydraulics | |
|---|---|
Capacity | 1.25 gal
4.7 L |
Pump flow | 5.15 gpm
19.5 lpm |
Steering flow | 3.43 gpm
13.0 lpm |
Steering cap. | 0.9 qts
0.9 L |
Tractor hitch | |
|---|---|
Rear Type | I |
Control | position and draft control |
Rear lift (at ends) | 2050 lbs
929 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | live |
Rear PTO Type | 540/1000 (1.375) |
Dimensions & Tires | |
|---|---|
2WD Wheelbase | 60.6 inches
153 cm |
4WD Wheelbase | 75.4 inches
191 cm |
Weight | 2313 to 2675 pounds |
Front tire | 5.00-15 |
2WD Rear tire | 7-16 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
Battery AH | 70 |
References | |
|---|---|
 | |
Bison Diesel published in 1980, by Satoh |
Engine
Engine Detail — 79.6 ci / 1.3 L Diesel
Manufacturer | Mitsubishi |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 79.6 ci
1.3 L |
Power | 30 hp
22.4 kW |
Air cleaner | dry |
Compression | 23:1 |
Rated RPM | 2700 |
Starter volts | 12 |
Oil capacity | 6.5 qts
6.2 L |
Coolant capacity | 6.3 qts
6.0 L |
Transmission
Transmission — 8 forward and 2 reverse gear
Type | gear |
Gears | 8 forward and 2 reverse |
Clutch | dry disc |
2WD Oil capacity | 21.1 qts
20.0 L |
4WD Oil capacity | 22.2 qts
21.0 L |
Dimensions
Satoh S670 Tires | |
|---|---|
2WD Standard tires (ag) | Front: 5.00-15. Rear: 7-16 |
4WD Standard tires (ag) | Front: 7-16. Rear: 12.4-24 |
2WD Lawn/turf front | 20x8.00-10 |
4WD Lawn/turf front | 6-14 |
Lawn/turf rear | 13.6-16 |
Dimensions | |
|---|---|
2WD Wheelbase | 60.6 inches
153 cm |
4WD Wheelbase | 75.4 inches
191 cm |
2WD Length | 106.5 inches
270 cm |
4WD Length | 116.9 inches
296 cm |
Width | 59.4 inches
150 cm |
Height | 77.6 inches
197 cm |
2WD Weight | 2313 lbs
1049 kg |
4WD Weight | 2675 lbs
1213 kg |
Ground clearance | 11.2 inches
28 cm |
2WD Front tread | 40.9 to 52.8 inches
103 to 134 cm |
4WD Front tread | 47.2 inches
119 cm |
Rear tread | 45.5 to 58.9 inches
115 to 149 cm |
Photos
Satoh Bison S670
Satoh Bison S670
Recommended Implements & Sizing Guide
Engineering recommendations for Satoh Bison S670 based on its 30 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 5 ft (60 in)1.5 m | Medium Duty | Pasture maintenance and weeds up to 1.5" diameter. |
Rotary TillerSeedbed Prep | 54 to 60 in135 - 150 cm | Medium Duty | Thorough seedbed preparation in orchards and vegetable plots. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Satoh Bison S670.
Estimated Continuous Field Runtime: 6.8 hrs
Approximately 6.8 hours of continuous field operation at ~75% rated power on a full tank (10.6 gal / 40.1 L).
Estimated 75% Load Fuel Burn~1.6 gal/hr (5.9 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Satoh Bison S670 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Satoh Bison S670.
Converted Equivalents:
Horsepower (HP)30 hp
Kilowatts (kW)22.4 kW
Metric Horsepower (PS / CV)30.4 PS
Direct Competitor Comparison
Compare Satoh Bison S670 against same-era industry alternatives in the same horsepower class.
Current Model
Satoh
Satoh Bison S670
Engine Power:Diesel (listed): 30 hp / 22.4 kW
★ Baseline Reference
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