Introduction
SOMECA Som 55 Agricultural Tractor
The SOMECA Som 55 is a two-wheel-drive agricultural tractor produced in France between 1961 and 1963. Designed for general farming operations, this model is recognized for its mechanical simplicity and robust construction during the mid-20th century.
Engine and Performance
The tractor is powered by the Fiat CO1 D/55, a 4-cylinder, liquid-cooled diesel engine with a displacement of 4.2 liters (253.6 ci). It delivers 55 hp (41.0 kW) at a rated engine speed of 1750 RPM. The engine features a 15:1 compression ratio and a 1-3-4-2 firing order, utilizing a 12-volt electric starter system.
Transmission and Drivetrain
The Som 55 is equipped with an Amplicouple transmission providing 14 forward and 4 reverse gears. The system consists of three gears plus reverse across two ranges, with an additional seventh gear available in both ranges. The Amplicouple mechanism provides a supplementary low range for each gear, allowing for precise speed adjustments during field work.
Hydraulics and PTO
The hydraulic system features a pump flow rate of 5.7 gpm (21.6 lpm). The rear hitch is a category II type, offering both position and draft control, with a maximum lift capacity of 2646 lbs (1200 kg). The independent rear PTO operates at a standard speed of 540 RPM.
Dimensions and Chassis
This two-wheel-drive model has a wheelbase of 79.9 inches (202 cm) and a total length of 140.9 inches (357 cm). The operating weight is 5776 lbs (2619 kg). The tractor features adjustable front and rear treads to accommodate various crop row spacings, and it is equipped with disc brakes for reliable stopping power.
Conclusion
The SOMECA Som 55 is a durable, mid-range tractor suited for traditional agricultural tasks. Its combination of a high-torque 4-cylinder engine and the versatile Amplicouple transmission makes it a practical choice for light-to-medium field applications and general farm maintenance.
Production Information of SOMECA, Som 55
- Built in France
| Manufacturer | SOMECA |
|---|
Dimension and Tires Information of SOMECA, Som 55
| Front tread | 51.2 to 66.9 inches [130 to 169 cm] |
|---|---|
| Wheelbase | 79.9 inches [202 cm] |
| Height (hood) | 61 inches [154 cm] |
| Height (steering wheel) | 72.5 inches [184 cm] |
| Length | 140.9 inches [357 cm] |
| Rear tread | 51.2 to 78.7 inches [130 to 199 cm] |
| Weight | 5776 lbs [2619 kg] |
| Width | 68.9 inches [175 cm] |
| Ag front | 6.50-20 |
|---|---|
| Ag rear | 14-30 |
| Ag rear | 12-38 |
Engine Specifications of SOMECA, Som 55
- Fiat CO1 D/55
- Liquid-cooled
- Diesel
- 4-cylinder
| Starter | Electric |
|---|---|
| Displacement | 253.6 ci [4.2 L] |
| Compression | 15:1 |
| Bore/Stroke | 4.13x4.72 inches [105 x 120 mm] |
| Starter volts | 12 |
| Firing order | 1-3-4-2 |
| Rated RPM | 1750 |
| Power | 55 hp [41.0 kW] |
Transmission Information of SOMECA, Som 55
Transmission variants 1
- Three gears, plus reverse, in two ranges with additional seventh gear available in both ranges. Amplicouple provides an additional low range for each gear.
| Transmission | Amplicouple |
|---|---|
| Gears | 14 forward and 4 reverse |
Mechanical Specs of SOMECA, Som 55
- Two-wheel drive
- Disc brakes
- Open operator station.
Power Information of SOMECA, Som 55
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540 (1.375) |
Hydraulics Specifications of SOMECA, Som 55
| Pump flow | 5.7 gpm [21.6 lpm] |
|---|
Three-Point Hitch of SOMECA, Som 55
| Rear Type | II |
|---|---|
| Control | Position and draft control |
| Rear lift | 2646 lbs [1200 kg] |
Electrical System of SOMECA, Som 55
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 55 HP, the SOMECA Som 55 sits just above Som 45 (40 HP) in SOMECA's range. Its power puts it in the 57th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the SOMECA Som 55 have?
The SOMECA Som 55 delivers 55 HP.
What years was the SOMECA Som 55 produced?
The SOMECA Som 55 was produced in 1961-1963.
What engine does the SOMECA Som 55 have?
The SOMECA Som 55 is powered by a Diesel, 4-cylinder engine.
What transmission does the SOMECA Som 55 use?
The SOMECA Som 55 uses a Amplicouple transmission.
How much does the SOMECA Som 55 weigh?
The SOMECA Som 55 weighs 5776 lbs [2619 kg].
Is the SOMECA Som 55 4WD?
The SOMECA Som 55 is available in 2WD.