The 120HP crawler combine harvester is a high-efficiency agricultural machine designed for harvesting rice and wheat. It integrates cutting, threshing, cleaning, and grain collection into one seamless operation, greatly improving productivity while reducing labor costs.

Powered by a reliable 120HP diesel engine and equipped with an advanced hydraulic and HST transmission system, the machine delivers stable performance, smooth operation, and strong adaptability in various field conditions—especially in wet and muddy terrains.

With a 2200mm cutting width, high feeding capacity, and a large 1200kg grain tank, this combine harvester ensures fast, continuous harvesting with minimal grain loss. It is an ideal solution for small to medium-sized farms seeking efficiency, durability, and cost-effectiveness.

Applications

• Rice harvesting

• Wheat harvesting

• Medium-scale farms

• Wet and soft field conditions

Advantages

✔ High efficiency & low grain loss
✔ Strong terrain adaptability (crawler design)
✔ Easy operation with hydraulic control
✔ Durable structure for long-term use
✔ Cost-effective for medium farms

User Guide – 120HP Crawler Combine Harvester

1. Pre-Operation Inspection

Before starting the machine, always perform a full inspection:

• Check engine oil, coolant, and fuel level

• Inspect hydraulic system and hoses for leaks

• Ensure all bolts and connections are tightened

• Check track tension and condition

• Clean dust or debris from the air filter

• Make sure the grain tank is empty

Proper inspection helps prevent breakdowns and ensures safe operation

2. Starting the Machine

1. Turn on the main power switch

2. Set gear to neutral position

3. Start the engine and let it idle for 3–5 minutes

4. Observe instrument panel for any warning signals

Do not operate under abnormal noise or warning lights

3. Field Operation

✔ Adjust Cutting Height

• Use the hydraulic control system to adjust header height

• Ensure the cutting bar follows the crop height properly

✔ Control Travel Speed

• Use HST system for smooth speed adjustment

• Recommended speed: low speed for dense crops, higher speed for light crops

✔ Maintain Feeding Balance

• Keep steady forward movement

• Avoid overloading (feeding capacity: 28.8 t/h)

Overfeeding may cause blockage or grain loss

4. Threshing & Cleaning Adjustment

• Adjust threshing drum speed according to crop condition

• For wet crops: increase drum speed

• For dry crops: reduce speed to minimize grain damage

• Adjust air volume of the fan
  Proper adjustment ensures clean grain and low loss

5. Grain Unloading

• When grain tank is near full (1200 kg capacity), stop feeding

• Activate automatic unloading system

• Rotate unloading auger (360°) toward transport vehicle

Ensure no people are near the unloading area

6. After Operation

• Clean straw, dust, and grain residues

• Check for worn or damaged parts

• Refuel and lubricate key components

• Store the machine in a dry, ventilated place

7. Safety Precautions

⚠ Never touch moving parts during operation
⚠ Keep hands away from cutting bar and threshing system
⚠ Do not allow untrained operators to use the machine
⚠ Stop engine before maintenance or cleaning
⚠ Wear protective equipment when operating

8. Maintenance Tips

• Regularly replace engine oil and filters

• Check track wear and adjust tension

• Inspect belts and hydraulic components

• Clean radiator to prevent overheating

Regular maintenance extends machine lifespan and improves performance

FAQ

Q1: What crops can this combine harvester harvest?
A: It is suitable for rice, wheat, and similar grain crops.

Q2: Is it suitable for muddy fields?
A: Yes, the crawler track system ensures excellent traction in wet conditions.

Q3: How is the grain unloaded?
A: It features automatic 360-degree grain unloading.

Q4: What is the working efficiency?
A: Approximately 0.5–0.9 hectares per hour depending on field conditions.