Tractors with radial tires have significant advantages, the SUTH 904B is a tractor designed with strengthened chassis and axles. Its 12F+12R shuttle shifter makes operation easier, increasing the speed and flexibility of tractor operation. Optional 260/70R20 and 380/85R24 tires meet customers' needs for larger tire configurations..
Advantages
I. Longer service life: Radial tires have higher tread rigidity and less circumferential deformation, allowing the use of harder rubber and better wear resistance; the ground pressure distribution is more uniform, slippage is smaller, and the mileage is about 30%–50% longer than bias-ply tires.
II. Lower rolling resistance and significant fuel savings: Fewer cord layers and less interlayer friction reduce rolling resistance by 20%–30%, resulting in actual fuel savings of 6%–8%, with even better fuel economy at high speeds or under heavy loads.
III. Stronger load-bearing capacity: The radial arrangement of cords increases strength utilization, increasing load-bearing capacity by about 14% compared to bias-ply tires.
IV. Superior adhesion and traction: Larger ground contact area and less tread slippage result in stronger grip, especially in soft farmland or sloping terrain where power transmission is more direct.
V. Faster heat dissipation and higher safety: Fewer cord layers and no shear friction result in lower tire temperature and faster heat dissipation, reducing the risk of tire blowout at high temperatures and high speeds. VI. Protects soil structure: Utilizing ultra-low pressure radial tires (such as VF technology) significantly reduces ground pressure, minimizing soil compaction and helping to protect black soil and increase crop yields.
VII. Excellent comfort and stability: Soft sidewalls provide excellent cushioning and improved ride smoothness; stability at high speeds or during cornering is superior to bias-ply tires.
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KEY SPECS |
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ENGINE |
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Engine power (gross) |
66.1KW |
Manufacturer |
YTO |
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Power take-off (PTO) power |
51.5KW |
Engine model |
Y4105ZT |
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Steering hydraulics |
24 L/min |
Engine power (gross) |
66.1KW |
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Implement hydraulics |
48 L/min |
Rated engine speed |
2400 rpm |
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Remote control valves available |
Standard: Two pair |
Injection pump type |
Direct Injection |
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Pump type |
Gear pump |
Aspiration |
Turbocharger |
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Hitch type |
Category 2 |
Emissions compliance |
2 stage |
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Lift capacity, 24-in. behind link arms |
2000 kg |
Number of cylinders |
Four |
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Approximate shipping weight (open-station; cab) |
Open station: 3000 kg |
Displacement |
3.85 L |
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Wheelbase |
2050 mm |
Cooling system |
Water pump |
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Fuel tank capacity |
130 L |
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Battery size |
120A |
POWER TAKE-OFF (PTO) |
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Alternator (14-V) |
80A |
Standard |
540/760 rpm |
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Brakes |
Drum brake |
Optional |
540/1000 rpm |
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Steering |
Hydraulic steering |
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Axle capacity |
Front: 1600 kg |
TRANSMISSION |
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Front tread spacing |
1270, 1320, 1370 mm |
Standard transmission; forward/reverse |
12F / 12R |
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Rear tread spacing |
1300 - 1500 mm |
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Turning radius with brakes |
4.4 m |
Rollover protective structure |
Yes |
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Dimensions |
4050x1850x2670 mm, 3500x1500x2750 mm (Cab) |
Platform - flat/straddle |
Flat |
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TIRES |
CAB |
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Front |
8.30-24 |
Visibility |
Rear camera |
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Air conditioning, temperature differential |
16°C |
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Doors |
Two |
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Seat equipment |
Air suspension |
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Toolbox |
Yes |
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Rear |
12.4-32 |
Differential lock |
Yes |
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Front PTO |
Optional |
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Front 3PT linkage |
Optional |
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Air Brake |
Optional |
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Quick hitch |
Optional |
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Swing traction |
Optional |
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Details


Workshop


Packaging and Delivery




Factory

Final drive in agricultural tractors
The final drive's function is to further increase the gear ratio of the transmission system, thereby providing the tractor's drive wheels with the required driving force.
In tracked tractors and some wheeled tractors, the final drive is also used to increase the ground clearance of the rear axle.
Types of Four-Wheel Drive Tractor Drivetrains
1. Four-Wheel Drivetrains with Different Front and Rear Wheel Sizes
Four-wheel drive tractors with different front and rear wheel sizes are generally formed by adding a transfer case, driveshaft, and front drive axle (including front central drive, differential, constant velocity joint, and final drive) to a rear-wheel drive tractor. It retains the basic characteristics of a rear-wheel drive tractor, such as small front wheels, large rear wheels, front-wheel steering, and a rearward-biased center of gravity.
2. Four-wheel drive transmission system with identical front and rear wheel sizes. A four-wheel drive system with identical front and rear wheel sizes is another basic type of tractor structure. It features essentially identical front and rear drive axles, large and identical front and rear wheels, and employs either articulated steering (front-wheel steering or four-wheel steering), as well as a forward-biased center of gravity. Engine power is transmitted to the front and rear axles via the clutch, gearbox, transfer case, and universal joint driveshaft. When using articulated steering, due to the relative movement between the front and rear frames, power transmission from the front to the assemblies on the front and rear frames requires a driveshaft with a universal joint.
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