| Manufacturer | Valmet |
| Price | - |
| Model | 8550 |
| Equipment Type | Row-Crop Tractors |
| Factory | Suolahti, Finland |
OCED TRACTOR TEST 1633 2
| Description | Diesel HiTech 4WD May 1996 - July 1996, Link: OCED Tractor Test 1633 file PTO performance Drawbar performance |
| Max power | 125.8hp / 93.8kW |
| Fuel use | 8.6gal/hour / 32.6l/hour |
| Power at rated engine speed | 141.6hp / 105.6kW |
| Power at rated PTO speed | 145.0hp / 108.1kW |
| Max pull | 10565lbs / 4792kg |
VALMET 8550 POWER
| Engine | 158.2hp / 118.0kW |
| Drawbar (tested) | 125.8hp / 93.8kW |
| PTO (tested) | 145.0hp / 108.1kW |
ENGINE DETAIL
The Valmet 8550 features a robust SisuDiesel 634 DSRE turbocharged engine, delivering 158.2 hp at a rated RPM of 2200, which allows for significant power output in demanding agricultural scenarios. Its impressive torque rating of 479.4 lb-ft at 1400 RPM enhances operational efficiency, particularly in heavy-load conditions such as tillage or plowing. However, the 7.4L displacement entails higher fuel consumption, which may challenge operational costs and necessitate careful fuel management in extensive agricultural operations.
| Description | SisuDiesel 634 DSRE turbocharged diesel 6-cylinder liquid-cooled |
| Displacement | 449.6ci / 7.4L |
| Bore/Stroke | 4.25x5.28inches / 108x 134mm |
| Power | 158.2hp / 118.0kW |
| Rated RPM | 2200 |
| Torque | 479.4lb-ft / 650.1Nm |
| Torque RPM | 1400 |
| Starter | electric |
| Starter volts | 12 |
VALMET 8550 ENGINE
The Valmet 8550 tractor is equipped with a robust SisuDiesel 7.4L 6-cylinder engine, offering enhanced torque and efficiency for demanding agricultural tasks. Its 43.6-gallon fuel tank capacity allows for extended operational time, reducing downtime for refueling on large-scale farms. However, the larger size may lead to challenges in maneuverability in tight spaces or uneven terrain.
| Description | SisuDiesel 7.4L 6-cyl diesel |
| Fuel tank | 43.6gal / 165.0L |
TRANSMISSION
The Valmet 8550 tractor features a three-speed power shift transmission with a total of 36 forward and reverse gears, enhancing operational flexibility across various terrains. The power shuttle allows for seamless direction changes, improving productivity in tasks that require frequent maneuvering. This transmission setup is ideal for applications demanding precision in speed control, though it may necessitate a steeper learning curve for operators unfamiliar with power-shift systems.
| Transmission | HiTech |
| Type | three-speed power shift |
| Gears | 36 forward and reverse |
| Description | Four gears in three ranges with three-speed power shift and power shuttle |
SPEEDS
| Description | With 20.8R38 rear tires |
MECHANICAL
The Valmet 8550 features a 4x4 MFWD configuration with power steering, enhancing maneuverability in diverse terrains and applications. Its hydraulic wet disc brakes provide reliable stopping power, ideal for heavy-duty operations or when towing implements. The 36-speed three-speed power shift transmission allows for fine-tuned speed control, making it well-suited for both fieldwork and transport tasks, maximizing efficiency under varying load conditions.
| Chassis | 4x4 MFWD 4WD |
| Steering | power |
| Brakes | hydraulic wet disc |
| Cab | Cab standard |
| Transmission | 36-speed three-speed power shift |
HYDRAULICS
| Pressure | 2756psi / 190.0bar |
| Pump flow | 19.3gpm / 73.1lpm |
TRACTOR HITCH
| Rear Type | III |
| Rear lift | 15432lbs / 6999kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540/1000/540/540E/1000 |
| Engine RPM | 540@1874 / 1000@2080 / 540E@1539 |
VALMET 8550 TIRES
The Valmet 8550 tractor features large Ag front (16.8R28) and rear tires (20.8R38), providing excellent traction and stability on diverse terrains, enhancing field performance. The larger rear tires also contribute to better load distribution and reduced soil compaction, which is advantageous for crop health. However, the increased tire size may impact maneuverability in tight spaces, making it less suited for smaller or more intricate farming operations.
| Ag front | 16.8R28 |
| Ag rear | 20.8R38 |
DIMENSIONS
| Wheelbase | 100.7inches / 255cm |
| Length | 194.5inches / 494cm |
| Width | 88.2inches / 224cm |
| Height (cab) | 111.4inches / 282cm |
| Height (exhaust) | 111.8inches / 283cm |
| Weight | 11460lbs / 5198kg |
| Clearance (front axle) | 21.9inches / 55cm |
| Clearance (rear axle) | 21.1inches / 53cm |
DIMENSIONS & TIRES
The Valmet 8550 features a wheelbase of 100.7 inches, providing stability and maneuverability for various agricultural tasks. Weighing 11,460 lbs, it offers a solid balance for traction, especially with its rear tire size of 20.8R38, which enhances soil penetration and running over uneven terrain. However, the comparatively narrow front tires (16.8R28) might pose challenges in flotation on softer soils, necessitating careful tire selection based on the working environment.
| Wheelbase | 100.7inches / 255cm |
| Weight | 11460lbs / 5198kg |
| Front tire | 16.8R28 |
| Rear tire | 20.8R38 |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Battery volts | 12 |