| Manufacturer | Challenger |
| Price | - |
| Model | MT225B |
| Equipment Type | Compact Utility Tractors |
| Factory | Matsuyama, Japan |
CHALLENGER MT225B POWER
| Engine (gross) | 22.5hp / 16.8kW |
| Engine (net) | 22hp / 16.4kW |
| PTO (claimed) | 17.6hp / 13.1kW |
ENGINE DETAIL
The Challenger MT225B features a compact Iseki E3312 diesel engine with a displacement of 1.1L and an output of 22.5hp, ideal for small to mid-sized agricultural tasks. The indirect injection system enhances fuel efficiency, while the 22.5:1 compression ratio provides the potential for increased torque, especially beneficial for plowing or towing applications at its rated RPM of 2600. However, the limited oil and coolant capacities could present challenges in extreme operations, necessitating regular monitoring to avoid overheating or lubrication issues.
| Description | Iseki E3312 diesel 3-cylinder liquid-cooled |
| Displacement | 68.5ci / 1.1L |
| Bore/Stroke | 3.08x3.07inches / 78x 78mm |
| Power (gross) | 22.5hp / 16.8kW |
| Fuel system | indirect injection |
| Air cleaner | dry |
| Pre-heating | glow plugs |
| Compression | 22.5:1 |
| Rated RPM | 2600 |
| Idle RPM | 1250-2860 |
| Starter volts | 12 |
| Oil capacity | 2.9qts / 2.7L |
| Coolant capacity | 7.5qts / 7.1L |
CHALLENGER MT225B ENGINE
The Challenger MT225B, powered by a 1.1L 3-cylinder Iseki diesel engine, offers a compact design ideal for small to medium-sized farming operations. Its lightweight structure enhances maneuverability and reduces soil compaction, making it suitable for sensitive terrains. However, its lower engine displacement may limit power in heavy-duty applications, making it less ideal for tasks requiring high torque or extensive implements.
| Description | Iseki 1.1L 3-cyl diesel |
TRANSMISSION
The Challenger MT225B tractor features a hydrostatic transmission with infinite (2-range) gears in both forward and reverse, providing smooth and precise control for various applications. With an oil capacity of 14.8 quarts (14.0 liters), it ensures effective lubrication and cooling, demanding regular maintenance for optimal performance. This configuration is ideal for tasks requiring frequent direction changes, such as tilling or mowing, but may present challenges in heavy towing applications due to transmission heat buildup during prolonged use.
| Type | hydrostatic |
| Gears | infinite (2-range) forward and reverse |
| Oil capacity | 14.8qts / 14.0L |
SPEEDS
| Description | With 9.5-16 R1 rear tires |
MECHANICAL
The Challenger MT225B tractor features a 4x4 MFWD configuration, enhancing traction for various terrains while its mechanical rear differential lock improves performance in challenging conditions. The hydrostatic transmission offers seamless and variable speed control, making it ideal for precision tasks. However, the two-post fixed ROPS design may limit operator protection in rollover situations, emphasizing the need for cautious operation on hilly or uneven landscapes.
| Chassis | 4x4 MFWD 4WD |
| Final drives | spur gear |
| Differential lock | mechanical rear |
| Steering | hydrostatic power |
| Brakes | wet disc |
| Cab | Two-post fixed ROPS |
| Transmission | hydrostatic |
CAPACITY
| Fuel | 6.6gal / 25.0L |
| Front diff. | 2.9qts / 2.7L |
HYDRAULICS
| Type | open center |
| Pressure | 1990psi / 137.2bar |
| Rear valves | 2 |
| Mid valves | 2 |
| Pump flow | 5.5gpm / 20.8lpm |
| Total flow | 8.1gpm / 30.7lpm |
| Steering flow | 2.64gpm / 10.0lpm |
| Steering press. | 1493psi / 102.9bar |
TRACTOR HITCH
| Rear Type | I |
| Control | position and response control |
| Rear lift (at ends) | 1190lbs / 539kg |
| Rear lift (at 24 | 591lbs / 268kg |
| Rear Arms | fixed link ends |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Clutch | electro-hydraulic wet disc |
| Rear RPM | 540 (1.375) |
| Mid PTO | standard |
| Mid RPM | 2000 (1.00) |
CHALLENGER MT225B TIRES
The Challenger MT225B tractor features versatile tire options across agricultural, lawn/turf, and industrial categories, allowing adaptability for varied applications. The ag tires (6-12 front, 9.5-16 rear) provide excellent traction for farming tasks, while the lawn/turf configuration (23x10.50-12 front, 33x12.50-16.5 rear) minimizes ground disturbance, making it suitable for landscaping duties. However, users should consider the potential compromise in performance when switching between tire types, as each set is optimized for specific tasks.
| Ag front | 6-12 |
| Ag rear | 9.5-16 |
| Lawn/turf front | 23x10.50-12 |
| Lawn/turf rear | 33x12.50-16.5 |
| Industrial front | 23x8.50-12 |
| Industrial rear | 12x16.5 |
DIMENSIONS
| Wheelbase | 59.8inches / 151cm |
| Length | 102inches / 259cm |
| Width | 39.4inches / 100cm *Minimum width |
| Height (ROPS) | 77inches / 195cm |
| Ground clearance | 10.4inches / 26cm |
| Front axle | Flange: 34.58inch length / 878mm |
| Rear axle | Flange: 33.62inch length / 853mm |
| Front tread | 35.6inches / 90cm |
| Rear tread | 35.6inches / 90cm |
CHALLENGER MT225B WEIGHT
| 1609lbs / 729kg | |
| Max capacity | 3086lbs / 1399kg |
| Max front axle | 1433lbs / 650kg |
| Max rear axle | 1653lbs / 749kg |
DIMENSIONS & TIRES
The Challenger MT225B tractor features a compact wheelbase of 59.8 inches, enhancing its maneuverability in tight spaces, making it ideal for small farming operations or landscaping tasks. With a weight of 1609 lbs, it provides stability during operation, but may limit traction on certain terrains; consider using appropriate wheel weights or ballast. The tire specifications (6-12 front and 9.5-16 rear) are well-suited for moderate load applications, yet selecting larger tires could improve flotation and traction in soft or uneven ground conditions.
| Wheelbase | 59.8inches / 151cm |
| Weight | 1609lbs / 729kg |
| Front tire | 6-12 |
| Rear tire | 9.5-16 |
CHALLENGER ML10B LOADER
| Height (to pin) | 74inches / 187cm |
| Clearance, dumped bucket | 53.9inches / 136cm |
| Dump reach | 22inches / 55cm |
| Dump angle | 51° |
| Reach at ground | 51inches / 129cm |
| Rollback angle | 23° |
| Breakout force (at pin) | 1854lbs / 840kg |
| Lift to full height (at pin) | 875lbs / 396kg |
| Lift to full height (at 500mm) | 624lbs / 283kg |
| Lift to 1.5m (at 500mm) | 741lbs / 336kg |
| Bucket width | 48inches / 121cm |
| Raise time to height | 6 s |
| Bucket dump time | 4.8 s |
| Lowering time | 4 s |
| Rollback time | 4.3 s |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 40 |
| Battery CCA | 435 |
| Battery volts | 12 |