As one of SUNDOM’s flagship agricultural radial tires, the 400/60R15.5 with R-1W deep tread pattern is specially engineered for balers, forage harvesters, combine harvester rear wheels and agricultural trailers. Featuring premium rubber formulation and optimized construction, it balances superior mud traction, highway wear resistance and heavy-load capacity, selling well across farming markets in Europe, America, Africa and Southeast Asia.
400/60R15.5 is a wide low-aspect-ratio radial farm tire: 400mm section width, 60% aspect ratio, fitting 15.5-inch rims with standard 13.0 rim size. Available in 14PR and 16PR ply ratings, speed rating A8 (max speed 40km/h). At standard inflation pressure of 400kPa, single tire maximum load reaches 3250kg. The widened tread enlarges ground contact area to lower ground pressure and reduce soil compaction. The “R” stands for radial construction, delivering less deformation, fast heat dissipation and resistance to overheating during long-distance road transit vs bias tires.
II. Core Advantages of R-1W Tread Design
The suffix W denotes Wet-condition optimized, an upgraded deepened version of classic R-1 chevron tread with around 20% deeper lugs than standard R-1 for muddy field operation:
1. Deep angled chevron lugs: Optimized 35° lug angle bites firmly into damp sticky farmland to prevent slippage and sinking, boosting traction by over 30% on wet mud and clay soil. Wide open grooves offer excellent self-cleaning to eject mud and crop straw automatically and avoid traction loss from mud packing.
2. Cut & wear-resistant compound: SUNDOM custom rubber formula with reinforced additives defies punctures and cuts from field stones, corn stubble and root debris, balancing field off-road durability and pavement wear performance for extended service life.
3. Reinforced thick sidewall: Thickened sidewall withstands field scrapes and impacts, deforms evenly under low inflation to improve flotation and reduce turf damage on grassland.
- Main Fitment: Round balers, silage harvesters, modified rear wheels for grain combines, farm transport trailers, fertilizer spreader tankers and forestry transporters, ideal for farm machinery upgrade refitting.
- Multi-terrain Use: Dry farmland, post-rain sticky mud, sandy loam, hilly plots and woodland soft ground, capable of heavy-duty field harvesting as well as short-distance highway transit on gravel and asphalt roads.
1. Tubeless TL design: Slow air leakage prevents sudden flat tires after nail punctures, cutting field downtime and maintenance costs.
2. Strict QC manufacturing: Mature radial production and stable vulcanization avoid rubber cracking under extreme hot or cold climates, fitting diverse weather worldwide.
3. Cost-effective export-grade quality: Matches top international tire performance at competitive pricing, widely trusted by farmers and machinery distributors across the Middle East, Eastern Europe, Africa and South America.
Combining wide flotation size, wet-focused deep R-1W tread and sturdy radial structure, SUNDOM 400/60R15.5 R-1W excellently fulfills four core demands: heavy load, anti-slip, abrasion resistance and anti-sink. It serves as a premium choice for original equipment matching and aftermarket farm tire replacement for small & medium agricultural machines.
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