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XR630/XR730
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Product Introduction
The XR630 and XR730 are models with different power configurations under the same platform. They have similar structures, but the XR730 has more powerful performance to meet the demands of harsher working conditions or higher efficiency.
They are mainly targeted at large-scale harvesting operations of crops such as wheat, rice, soybeans, and corn (which requires the replacement of corn headers), meeting the demands of cross-regional operators and large farms for efficiency and returns.
Product Advantage
1.A powerful and energy-efficient power system
It is equipped with high-pressure common rail and turbocharged engines from well-known brands such as Yuchai and Shangchai.
It has sufficient power reserve to ensure efficient operation even when crop yields are high and humidity is high, without losing rotation or getting clogged. At the same time, it has excellent fuel economy.
2. An efficient and reliable harvesting system
◦ Increase and widen the bridge: Ensure uniform and smooth feeding volume, guaranteeing efficiency from the source.
Large-diameter drum + extended concave plate: Large threshing area, strong threshing and separation capacity, effectively reducing grain breakage rate and entrainment loss.
Double-layer fish scale sieve with different holes + cleaning fan: High cleaning efficiency, good grain cleanliness, and can reduce food waste.
3. Chassis design adapted to terrain
The mainstream 4LZ-6/4LZ-7 grades in China adopt a hydraulic stepless speed change (HST) walking system.
It can move forward and backward without shifting gears, and can achieve stepless smooth speed regulation from 0 to the maximum speed. Turning at the edge of the field and passing through narrow roads are more flexible and effortless, greatly reducing the labor intensity of the operator.
High ground clearance and reinforced axles ensure passability and reliability in muddy and slippery fields.
Technical Parameters
| Code | XR630 | |
| Model | 4LZ-6.0B (cabin) | |
| Engine | Brand | Yuchai / Quanchai |
| Power | 115 hp | |
| Fuel Tank Capacity | 170+45 L | |
| Machine Dimensions (L x W x H) | 5800 x 2600 x 2900 mm | |
| Weight | 4050 kg | |
| Intake Volume | 6 kg/s | |
| Header Width | 2200 mm | |
| Rotor Type | Axial flow seperating tooth | |
| Rotor Dimmension | 620 x 2210 mm | |
| Crawler Track pitch x Number x Width | 90mm x 53/56 x500/550 mm | |
| Crawler Center Distance | 1250 mm | |
| Gearbox | TM3088 | |
| Ground Clearance | 310 mm | |
| Grain Tank Capacity | 1.5 m3 | |
Product Uses
In northern regions: Large-scale harvests of wheat, soybeans and corn (with corn harvesters being replaced).
• Southern regions: Harvest of rice and wheat.
• Cross-regional operation: Due to its high reliability and efficiency, it is highly suitable for professional operators to carry out mobile operations across the country.
Product Operate Guide
The operation of the XR630/XR730 harvester emphasizes efficiency and safety. Before starting the operation, check the key components such as the cutting knife, roller and belt. It adopts an advanced hydraulic stepless speed change (HST) walking system, with single-rod control for forward and backward movement. The speed regulation is smooth and the steering is flexible. The lifting of the cutting table, the speed of the drum and the cleaning system can be easily adjusted through the electro-hydraulic control handle. During the operation, the walking speed and the drum speed should be reasonably matched according to the crop conditions and yield to ensure clean threshing and minimize loss. Equipped with a luxurious cab, it offers a wide field of vision and effectively reduces fatigue. Regularly cleaning the radiator and checking the hydraulic oil level are the keys to maintaining the efficient operation of the machine.
FAQ
A: The core difference lies in engine power and feed volume. The XR730 features greater horsepower and a higher theoretical feed rate (7 kilograms per second). Under conditions of higher crop yields, greater humidity, or the pursuit of ultimate efficiency, it offers more abundant power reserves and stronger operational capabilities.
A: It is a multi-functional combine harvester for grains. By changing different headers, it is possible to harvest major field crops such as wheat, rice, soybeans, corn (a dedicated corn header is required), and sorghum, with a very wide range of adaptability.
A: It adopts a hydraulic continuously variable speed (HST) system. With just one handle, the vehicle can be controlled to smoothly shift gears from zero to the maximum speed and switch forward and backward. The operation is extremely simple and labor-saving, greatly reducing the labor intensity of the operator. It is particularly suitable for harvesting operations that require frequent turns and U-turns.
A: A high rate of grain breakage is usually related to the excessive speed of the drum. The rotational speed of the drum should be appropriately reduced, and the corresponding threshing gap should be adjusted simultaneously. It is recommended to refer to the recommended parameters in the manual and make minor adjustments according to the dryness or wetness of the crops.
A: This is a common adjustment issue.
The grains are blown out: It indicates that the air volume is too large and the fan speed should be reduced.
If the grains are wrapped in impurities and thrown out, it indicates that the air volume is too small or the opening of the screen is inappropriate. The fan speed should be increased or the opening of the screen should be appropriately enlarged.
The fan, screen and traveling speed need to be comprehensively adjusted to achieve the best cleaning effect.
• Daily: Clean the grass and dust on the engine radiator and hydraulic oil radiator to prevent high temperatures.
• Each shift: Check the wear and tension of the cutting knives, rollers, belts and chains.
• Regular: Change the engine oil, hydraulic oil, gear oil and various filters strictly in accordance with the maintenance manual.
A: The horizontal rotating unloading cylinder driven by hydraulic power can be controlled to rotate and lift by operating the hydraulic handle in the cab. It features fast unloading speed, convenient operation and no need for manual assistance.
