Introduction
UTB S445 Agricultural Crawler Tractor
The UTB S445 is an agricultural crawler tractor manufactured by Universal in Brașov, Romania, between 1972 and 1981. This tracked vehicle was designed for field operations requiring high traction and stability, particularly in challenging soil conditions.
Engine and Performance
The tractor is powered by a 3-cylinder liquid-cooled diesel engine with a displacement of 2.3 liters (142.8 ci). It utilizes a direct injection fuel system and achieves a rated speed of 2400 RPM. With a compression ratio of 17:1, the engine delivers 46 horsepower, providing consistent torque for various agricultural tasks.
Transmission and Drivetrain
The S445 features a constant mesh transmission configuration with 6 forward gears and 2 reverse gears. Power is transferred to the tracks via a 254 mm dry disc clutch. The crawler drive system is supported by a 131 cm wheelbase and 9.8-inch wide tracks, ensuring effective weight distribution and grip on uneven terrain. Braking is managed through a band brake system.
Hydraulics and Hitch
The hydraulic system is an open center type, operating at a pressure of 2475 psi (170.7 bar) with a pump flow capacity of 5.8 gpm (22.0 lpm). The rear hitch is categorized as II/I, capable of lifting up to 2650 lbs (1202 kg), allowing for the operation of mounted implements. Additionally, the tractor is equipped with a rear PTO operating at 540 RPM at an engine speed of 1970 RPM.
Conclusion
The UTB S445 is a specialized machine suited for farmers and collectors operating in conditions where standard wheeled tractors may lack sufficient traction. Its robust construction and crawler design make it a reliable tool for heavy-duty agricultural cultivation.
Production Information of UTB Universal, S445
- Agricultural Crawler tractor
- Built in Brasov, Romania
| Manufacturer | UTB/Universal |
|---|
Engine Specifications of UTB Universal, S445
- UTB
- Liquid-cooled
- 3-cylinder
- Diesel
| Compression | 17:1 |
|---|---|
| Torque RPM | 1500 |
| Displacement | 142.8 ci [2.3 L] |
| Bore/Stroke | 3.74x4.33 inches [95 x 110 mm] |
| Fuel system | Direct injection |
| Torque | 112 lb-ft [151.9 Nm] |
| Rated RPM | 2400 |
| Starter power | 4 hp [3.0 kW] |
| Starter volts | 12 |
| Starter | Electric |
Transmission Information of UTB Universal, S445
Transmission variants 1
| Type | Constant mesh |
|---|---|
| Gears | 6 forward and 2 reverse |
| Clutch | 254mm dry discs |
Mechanical Specs of UTB Universal, S445
- Band brakes
- Open operator station.
| Drive | Crawler |
|---|
Power Information of UTB Universal, S445
| Rear PTO Type | 540 |
|---|---|
| Engine RPM | 540@1970 |
Hydraulics Specifications of UTB Universal, S445
| Type | Open center |
|---|---|
| Pressure | 2475 psi [170.7 bar] |
| Pump flow | 5.8 gpm [22.0 lpm] |
Three-Point Hitch of UTB Universal, S445
| Rear Type | II/I |
|---|---|
| Rear lift | 2650 lbs [1202 kg] |
Electrical System of UTB Universal, S445
| Charging system | Alternator |
|---|---|
| Battery volts | 12 |
Where it sits
With 46 hp[P] HP, the UTB Universal S445 sits between 453 (45 HP) and 510 (47 HP) in UTB Universal's range. Its power puts it in the 30th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the UTB Universal S445 have?
The UTB Universal S445 delivers 46 hp[P] HP.
What years was the UTB Universal S445 produced?
The UTB Universal S445 was produced in 1972-1981.
What engine does the UTB Universal S445 have?
The UTB Universal S445 is powered by a Diesel, 3-cylinder engine.
What transmission does the UTB Universal S445 use?
The UTB Universal S445 uses a Constant mesh transmission.