Introduction
Ursus C-385: Agricultural Tractor (1972-1983)
The Ursus C-385 is an 85-horsepower agricultural tractor produced by the Polish manufacturer Ursus between 1972 and 1983. Designed for versatility and durability, it served as a core utility machine for various farming operations during its production era.
Engine and Performance
The tractor is powered by a 4.6-liter, 4-cylinder turbocharged engine. It operates at a rated speed of 2200 RPM, delivering a maximum torque of 320 Nm at 1650 RPM. The engine features a 17:1 compression ratio and utilizes a dry two-stage air cleaner system to maintain performance in dusty field conditions.
Transmission and Drivetrain
The transmission system incorporates a partial power shift design, offering 16 forward and 8 reverse gears. This is achieved through an 8-forward and 4-reverse gearbox combined with a torque amplifier, which allows for increased flexibility when adjusting speed under load. The tractor is available in both two-wheel and four-wheel drive configurations.
Hydraulics and PTO
The hydraulic system is equipped with a pump flow rate of 9.2 gallons per minute (34.8 liters per minute), providing the necessary power for external agricultural implements. The rear power take-off (PTO) is dual-speed, offering selectable settings of 540 and 1000 RPM to accommodate a wide range of machinery.
Dimensions and Handling
The Ursus C-385 features a wheelbase of 238 cm and a ground clearance of 41 cm, facilitating stability and maneuverability across uneven terrain. Steering is managed via a power-assist system, while braking is provided by differential hydraulic disc brakes. The machine weighs approximately 4510 kg in the 2WD cab version and 4948 kg in the 4WD version.
Conclusion
The Ursus C-385 is a robust and dependable tractor suitable for general field work, traction tasks, and implement operation. Its combination of a high-torque engine, versatile transmission, and hydraulic capabilities made it a standard choice for farmers requiring a reliable mid-range tractor during the 1970s and early 1980s.
Production Information of Ursus, C-385
| Manufacturer | Ursus |
|---|
Dimension and Tires Information of Ursus, C-385
| Ground clearance | 16.5 inches [41 cm] |
|---|---|
| Wheelbase | 93.9 inches [238 cm] |
| 2WD cab Weight | 9943 lbs [4510 kg] |
| Height (cab) | 97.8 inches [248 cm] |
| Length | 155.3 inches [394 cm] |
| 4WD cab Weight | 10910 lbs [4948 kg] |
| Width | 76 inches [193 cm] |
| Ag front | 7.50-20 (2WD) |
|---|---|
| Ag front(optional) | 12.4-24 (4WD) |
| Ag rear | 16.9-34 |
Engine Specifications of Ursus, C-385
- Turbocharged
- 4-cylinder
| Torque | 197.7 lb-ft [268.1 Nm] |
|---|---|
| Rated RPM | 2200 |
| Bore/Stroke | 4.33x4.72 inches [110 x 120 mm] |
| Air cleaner | Dry two stage |
| Torque | 236.0 lb-ft [320.0 Nm] |
| Displacement | 279.4 ci [4.6 L] |
| Torque RPM | 1130 |
| Rated RPM | 2200 |
| Compression | 17:1 |
| Torque RPM | 1650 |
Transmission Information of Ursus, C-385
Transmission variants 1
- A 8-forward and 4-reverse gearbox with a torque amplifier style power shift that doubles the available speeds.
| Type | Partial power shift |
|---|---|
| Gears | 16 forward and 8 reverse |
Mechanical Specs of Ursus, C-385
- Two- or four-wheel drive
- Differential hydraulic disc brakes
| Steering | Power assist |
|---|
Power Information of Ursus, C-385
| Rear PTO Type | 540/1000 |
|---|
Hydraulics Specifications of Ursus, C-385
| Pump flow | 9.2 gpm [34.8 lpm] |
|---|
Where it sits
With 85 HP, the Ursus C-385 sits between 912 (82 HP) and 6824 (91 HP) in Ursus's range. Its power puts it in the 61th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Ursus C-385 have?
The Ursus C-385 delivers 85 HP.
What years was the Ursus C-385 produced?
The Ursus C-385 was produced in 1972-1983.
What engine does the Ursus C-385 have?
The Ursus C-385 is powered by a 4-cylinder engine.
What transmission does the Ursus C-385 use?
The Ursus C-385 uses a Partial power shift transmission.
How much does the Ursus C-385 weigh?
The Ursus C-385 weighs 9943 lbs [4510 kg].
Is the Ursus C-385 4WD?
The Ursus C-385 is available in 2WD/4WD.