Ursus C-325

Last Updated: July 2024

Overview

The Ursus C-325 is a utility tractor characterized by its 4x2 chassis (four wheels total, two of which are powered) and manual steering system. This tractor is driven by a 2-wheel drive mechanism and operates through a gear transmission with 6 forward gears and 2 reverse gears. Under the hood, the C-325 houses a two-cylinder Ursus S-312 diesel engine, which is liquid-cooled to maintain temperature during operations. With a bore and stroke of 3.85 and 4.72 inches respectively, the engine displaces 109.8 cubic inches and churns out 32.8 horsepower at 2000 RPM, with a maximum torque of 107 lb-ft at 1500 RPM. This tractor is equipped with a manual seat for operation and its total length measures up to 119.3 inches. Standing 59 inches tall, the C-325 has an operating weight of 3219 lbs. It rides on agricultural tires, with the front tires being 16 inches in diameter and the rear tires 28 inches. It remains a practical choice for a variety of farming tasks, offering reliability and straightforward mechanical technology. Additional performance details include a drawbar power of 27.90 HP at 4.00 mph, fuel consumption rates, and fuel efficiency values based on the independent test results.
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Key Specifications

Category: Utility

Power Output: 32.8

Transmission: Gear

Drive Type: 2WD

Operating Weight: 3219

Fuel Type: Diesel

Ursus C-325 vs. Similar Tractors

Power Output
Below Average
Greater than 18% of similar tractors.
Operating Weight
Below Average
Greater than 27% of similar tractors.

Technical Specifications

Engine

Manufacturer
Ursus
Model
S-312
Cooling Type
Liquid-cooled
Cylinder Orientation
-
Valve Configuration
-
Fuel Type
Diesel
Induction Type
-
Cylinders
2
Displacement (ci)
109.8
Bore (in)
3.85
Stroke (in)
4.72
Rated RPM
2000
Power Output (hp)
32.8

Transmission

Type
Gear
Forward Gears
6
Reverse Gears
2
Total Gears
-

Dimensions

Length (in)
119.3
Width (in)
-
Height (in)
59
Operating Weight (lb)
3219

Power Take-Off (PTO)

PTO Type
-
PTO Speed 1 (rpm)
-
PTO Speed 2 (rpm)
-
PTO Speed 3 (rpm)
-

Miscellaneous

Chassis
4x2
Drive Type
2WD
Steering Type
Manual
Coolant Capacity (qts)
-
Front Tire Diameter (in)
16
Front Tire Width (in)
-
Rear Tire Diameter (in)
28
Rear Tire Width (in)
-
Front/Rear Rim Diameter (in)
-
Tire Type
Ag (Agricultural)
Manufacture - End Year
-
Hitch Type
-
Hitch Category
-
Hitch Position
-
Hitch Capacity (lb)
-
Operator Station Type
-
Starter Type
-
Brake Type
-
Hydraulic System Type
-

Test Results

Nebraska Tractor Test Laboratory - Test Date: January 1, 1961

Maximum Power and Fuel Consumption

  • Maximum Power: 32.80 HP (24.47 kW) at 2000 rpm
  • Fuel Consumption at Maximum Power: 2.06 Gal/hr (7.80 l/h) with a fuel efficiency of 0.52 lb/hp.hr (0.316 kg/kW.h)

Drawbar Performance

  • Drawbar Power: 27.90 HP (20.81 kW) at 4.00 mph (6.44 km/h)
  • Fuel Consumption at Drawbar Power: 0.56 lb/hp.hr (0.341 kg/kW.h) with a fuel efficiency of 12.55 Hp.hr/gal (2.48 kW.h/l)

Torque and Engine Performance

  • Maximum Torque: 107 lb.-ft. (145 Nm) at 1500 rpm
  • Torque Rise: Not specified

Hydraulic Performance

  • Maximum Force Exerted: Not specified
  • Pump Delivery Rate: Not specified
  • Hydraulic Power: Not specified

Overall Efficiency

  • Fuel Efficiency at Standard PTO Speed (1000 rpm): Not specified
  • Fuel Consumption: 2.06 Gal/hr (7.80 l/h) at 2000 rpm

    Nebraska Tractor Test Lab. (1961). Test 804: Ursus C-325 (Diesel). Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/1210

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