Differences Between Greenhouse Tractors and Paddy Field Tractors

Model

Component Design

Explanation with Real Operational Cases

Woye 35HP Greenhouse Tractor

Equipped with small-sized narrow tires: front tires 6.0 - 12 and rear tires 9.5 - 16. The tread pattern is shallow and fine, a standard agricultural pattern, with a small overall contact area and moderate tire pressure. The core design balances flexibility and protection of planting ridges to avoid crushing crop ridges.

In a winter-warm greenhouse at a vegetable planting base in Shouguang, Shandong, cucumbers are grown with a row spacing of only 40 cm. Operations such as ditching and fertilizing require shuttling between ridges. The narrow tires of the Woye 35HP Greenhouse Tractor can easily fit into the gaps between ridges, and the shallow, fine tread does not carry excessive loose soil, preventing soil from adhering to the tires and falling onto the roots of cucumber seedlings, which would affect growth. During a rotary tillage operation in the greenhouse, the small-sized tires allowed the machine to turn without dead angles in the 5-meter-wide shed, with no cucumber seedlings lodging due to ridge crushing. If paddy field large tires were used, their excessive width would prevent entry between ridges, and they would easily collapse the ridges.

Dongfanghong MF554 Wheel-type Paddy Field Tractor

Equipped with wide paddy field tires: front tires 8.3 - 20/7.5 - 16 and rear tires 12.4 - 28/11 - 28. The tread features an ultra-deep herringbone pattern with groove depths ranging from 50 to 80mm, and the wheelbase is adjustable between 1200 - 1400mm. The wide tread reduces ground contact pressure, and the deep pattern quickly drains muddy water to prevent the tires from getting stuck in sludge.

A rice grower in Yiyang, Hunan, conducted spring ploughing in paddy fields with a mud depth of 20 cm. The wide paddy field tires of the Dongfanghong MF554 reduced the ground contact pressure to as low as 0.2kg/cm², avoiding sinking. During harrowing, the deep herringbone pattern quickly scraped off sludge adhering to the tread, ensuring stable traction. When switching operations between paddy fields of different specifications, adjusting the wheelbase to match the 1.2-meter and 1.4-meter rice row spacings allowed the completion of deep ploughing for 30 mu of paddy fields in one go. If the small narrow tires of a greenhouse tractor were used, they would sink into the sludge instantly, and the shallow pattern could not drain mud, leading to tire slipping and loss of traction.

Model

Component Design

Explanation with Real Operational Cases

Woye 35HP Greenhouse Tractor

Adopts a small resistive muffler, compact in size, installed close to the machine body and facing the side. This design not only fits the compact layout of the machine but also the resistive structure absorbs medium and high-frequency noise, avoiding noise stimulation to crops in the greenhouse and reducing close-range interference to operators.

Farmers in the Shouguang greenhouse planting area often need to work continuously in closed greenhouses for 4 - 6 hours. The small resistive muffler of the Woye 35HP Greenhouse Tractor effectively controls engine noise at a low level. During a sowing operation in a greenhouse during high-temperature summer, the noise in the closed environment did not cause obvious irritability. Additionally, the side-facing muffler ensures that exhaust gas does not blow directly on crop seedlings, preventing seedling leaves from being scorched by high-temperature exhaust. If a large-sized muffler from a paddy field tractor were used, it would not only lack sufficient installation space but also the noise would hinder farmers' ability to judge the working status of the seeder.

Dongfanghong MF554 Wheel-type Paddy Field Tractor

Equipped with an impedance compound muffler, large in size, with an upward-facing exhaust port and a corrosion-resistant, high-temperature-resistant structure. This muffler effectively eliminates low, medium, and high-frequency noise to meet the noise reduction requirements of field operations. The upward-facing exhaust port prevents muddy water from splashing into the muffler, avoiding component corrosion and damage.

A cooperative in Shangrao, Jiangxi, conducted paddy field operations during the rainy season, with water accumulation in many parts of the fields and soft ridges soaked by rainwater. During operation, the upward-facing exhaust port of the Dongfanghong MF554 successfully prevented muddy water from splashing into the muffler. Its impedance compound muffler kept noise within a controllable range even when the engine speed increased to 2200r/min during high-intensity operations with large rotary harrows, without causing severe interference to multiple nearby farmers working simultaneously. After a rainy operation, the machine was covered in muddy water, but the corrosion-resistant coating of the muffler effectively prevented mud corrosion, requiring only simple wiping after operation. If a small muffler from a greenhouse tractor were used, it would not only provide insufficient noise reduction but also the exhaust port would be easily blocked by muddy water, potentially reducing engine power due to excessive exhaust resistance.

Model

Component Design

Explanation with Real Operational Cases

Woye 35HP Greenhouse Tractor

Equipped with detachable simple guards, no complex sealing structure, and compact hydraulic system pipelines close to the machine body. It is mainly adapted to the greenhouse environment with no muddy water immersion and low operation intensity. The detachable guards facilitate adjusting the machine height in low greenhouses.

A tomato planting greenhouse in Shouguang had a damaged roof and was temporarily covered with a simple shed only 1.2 meters high. After removing the tractor's guards, the farmer further reduced the machine height, successfully entering the shed to complete weeding operations. The compact hydraulic pipelines were not scratched by the supporting steel pipes in the shed during shuttling. In contrast, the complex sealed guards of paddy field tractors are not detachable and would be too tall to enter such low greenhouses.

Dongfanghong MF554 Wheel-type Paddy Field Tractor

Features high-sealing guards at the bottom of the machine body. Key components such as the gearbox and engine are waterproof and sealed, with a minimum ground clearance of 330mm. High sealing prevents muddy water from seeping into internal components, and high ground clearance avoids the machine body being soaked by accumulated water.

A low-lying paddy field in Changde, Hunan, had 10 cm of accumulated water after heavy rains. The high ground clearance of the Dongfanghong MF554 kept the machine away from the accumulated water, and the sealed guards protected the gearbox from water ingress. During operation, the machine crossed water-soaked ridges multiple times, and the component sealing performance remained intact. If a greenhouse tractor were used, its unsealed structure would allow muddy water to seep into the engine, and the low ground clearance would bring the bottom of the machine into contact with accumulated water, causing component failures.