Technical Specifications of the Valmet Mezzo 6600 Agricultural Tractor:
The Valmet Mezzo 6600 agricultural tractor was produced between 1991 and 1993. It is equipped with a 420DS engine with a displacement of 4,399 cm³, featuring four cylinders and a turbocharger. The cylinder bore is 108 mm, and the piston stroke is 120 mm. The engine delivers a maximum power output of 105 HP at 2,225 RPM, with a torque of 405 Nm at 1,550 RPM. The transmission offers 24 forward gears and 24 reverse gears, all synchronized. The maximum speed is 40 km/h. The hydraulic system has a flow rate of 70 L/min, with electronic control for the rear lift, which has a maximum lifting capacity of 5,600 kg. The power take-off (PTO) operates at speeds of 540 and 1,000 RPM. The turning radius for the 4WD version is 9.4 meters. The tractor is equipped with front tires sized 13.6R28 and rear tires 16.9R38. The total weight of the 4WD model is 4,400 kg. The overall height with a cab is 275 cm, length is 444 cm, and width is 234 cm. The fuel tank capacity is 165 liters, and the cabin noise level is measured at 79 dB.
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Technical Data Sheet for Valmet Mezzo 6600, 6800, and 6900 tractors:
| Model | Valmet Mezzo 6600 | Valmet Mezzo 6800 | Valmet Mezzo 6900 |
|---|---|---|---|
| Years of production | 1991-93 | – | – |
| Engine designation/type | 420DS | 420DWRIE | 620DRE |
| Number of cylinders / Turbo / Intercooler | 4T | 4TI | 6 |
| Engine displacement (cm³) | 4399 | 4399 | 6598 |
| Piston diameter / Stroke (mm) | 108×120 | 108×120 | 108×120 |
| Maximum engine power (HP) / at RPM | 105/2225 | 120/2200 | 102/2225 |
| Torque (Nm) / at RPM | 405/1550 | 490/1400 | 390/1550 |
| Number of gearbox speeds (forward + reverse) | 24+24 | 36+36 | 12+12 |
| Number of synchronized gears (forward + reverse) | 24+24 | 36+36 | 12+12 |
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| Fast gearbox / Power shift | – | – | – |
|---|---|---|---|
| Reverser type | – | – | – |
| Speed range (km/h) | – | – | – |
| Maximum speed (km/h) | 40 | 40 (50) | 40 |
| Hydraulic pump capacity (L/min) | 70 | 73 | 73 |
| Rear three-point hitch (TUV) control type | ehr | ehr | ehr |
| Maximum rear three-point hitch (TUV) lift capacity (kg) | 5600 | 7000 | 4800 |
| Power take-off (PTO) speed (RPM) | 540/1000 | 540/1000 | 540/1000 |
| Type of disc brake (dry/wet) | – | – | – |
| Brake system control type | – | – | – |
| Turning radius 2WD (m) | – | – | – |
| Turning radius 4WD (m) | 9,4 | 9,4 | 10,2 |
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| Front tire size 2WD | – | – | – |
|---|---|---|---|
| Front tire size 4WD | 13.6R28 | 14.9R28 | 14.9R24 |
| Rear tire size 2WD | – | – | – |
| Rear tire size 4WD | 16.9R38 | 18.4R38 | 18.4R34 |
| Total weight 2WD (kg) | – | – | – |
| Total weight 4WD (kg) | 4400 | 4420 | 4420 |
| Total height with cabin (cm) | 275 | 277 | 277 |
| Total length (cm) | 444 | 443 | 475 |
| Total width (cm) | 234 | 233 | 256 |
| Fuel tank capacity (L) | 165 | 165 | 165 |
| Cabin noise level (dB) | 79 | 77 | 78 |
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