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Zhejiang Sifang Group Co., Ltd

The Sifang brand DF121 (Dongfeng-12) walking tractor is an improved traction drive dual-purpose tractor based on the Dongfeng model, which can be matched with various forms of 195 series diesel engines. It has the advantages of compactness, lightweight and flexible operation, and strong usability. And equipped with a seating device, the driver can ride on the tractor for various field operations. It can be equipped with plows, rotary tillers, water rakes, and trenching tools, suitable for working in paddy fields, dry land, orchards, vegetable fields, and hills with small slopes. The tractor can be used for short distance transportation and can also be widely used as a power source for rural fixed operations such as pumping, irrigation, threshing, grain and feed processing.
| model | DF121 | ||||||||
| type | Single axis, drive and traction dual-use type | ||||||||
| Dimensions (mm) | 2680 × 960 × 1250 (no passenger seat) | ||||||||
| **Small ground clearance (mm) | 185 (* * bottom of final drive) | ||||||||
| Wheelbase (mm) | 800, 740, 640, 580, commonly used 800 | ||||||||
| Structural weight (kg) | 329 | ||||||||
| **Small usage quality | 349 | ||||||||
| Driving speed (km/h) | grade | Ⅰ | Ⅱ | Ⅲ | Ⅳ | Ⅴ | Ⅵ | 倒Ⅰ | Inverted II |
| Theoretical speed | 1.4 | 2.5 | 4.1 | 5.3 | 9.4 | 15.3 | 1.1 | 3.8 | |
| **Small turning circle radius (mm) | 900 | ||||||||
| Plowing blade shaft speed (r/min) | slow | 188 | |||||||
| quick | 256 | ||||||||
| engine | model | 195 series diesel engine (optional) | |||||||
| type | Single cylinder horizontal four stroke vortex type (direct injection type) | ||||||||
| Starting method | Hand cranked starting, electric starting (for power models with M) | ||||||||
| 12 hour calibrated power (kw) | 9 | ||||||||
| Calibrated speed (r/min) | 2000 | ||||||||
| Fuel consumption rate (g/kw. h) | ≤258.4 | ||||||||
| Structural weight (kg) | 140 | ||||||||
| generator | model | 12V90W AC generator | |||||||
| Rated speed (r/min) | 2000 | ||||||||
| Phase formula | Single phase three-way | ||||||||
| lighting lamp | CX136 Jeep Headlights | ||||||||
| Transmission system | Engine to clutch | B1880 V-belt drive | |||||||
| clutch | Double piece constant joint friction type | ||||||||
| transmission case | 08B-2 × 64 Double Row Sleeve Roller Chain Transmission | ||||||||
| gearbox | Gear transmission (3+1) × 2 composition | ||||||||
| Steering mechanism | Toothed clutch | ||||||||
| **Final drive | Two stage reduction spur cylindrical gear transmission | ||||||||
| brake | Wet annular internal expansion type | ||||||||
| rotary tiller | 12A-2 × 50 Double Row Sleeve Roller Chain Transmission | ||||||||
| Wheel walking system | driving wheel | 6.00-12 Four layer herringbone pattern rubber wheel | |||||||
| Air pressure (kPa) | 137~196(1.4~2kg/cm²) | ||||||||
| Transport tail wheel | 4.00-8 rubber wheels | ||||||||
| Air pressure (kPa) | 343~392(3.5~4kg/cm²) | ||||||||
| Cultivation tail wheel diameter (mm) | 340 | ||||||||