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Professional Industry Knowledge of Agricultural Chains
1. Overview of Agricultural Chains
Agricultural chains are professional power transmission and conveying components specially designed for farm machinery and harvesting equipment. Different from standard industrial chains, they are developed to adapt to harsh outdoor working conditions, including heavy impact loads, abrasive dust, crop residues, muddy and humid farmland environments.
These chains are widely used in combine harvesters, planters, cultivators, balers, tractors and other agricultural equipment. They undertake core functions such as crop feeding, material conveying, grain lifting and mechanical transmission, which are the key wearable parts to ensure the continuous and stable operation of agricultural machinery.
2. Main Classification of Agricultural Chains
2.1 S Series Agricultural Roller Chains (Most Widely Used)
S-series chains are dedicated light and medium-duty agricultural chains, featuring compact structure, strong wear resistance and low elongation. Common models include S45, S52, S55, S62, S77 and S88. Equipped with K-type, A-type extended attachments, they can install scrapers, push plates and baffles, mainly applied for crop feeding and material conveying systems of harvesters.
2.2 C Series Double Pitch Conveyor Chains
C2060H, C2080 and other double-pitch chains belong to heavy-duty conveying chains. With larger pitch and higher load capacity, they are suitable for long-distance and large-volume material transportation. They are commonly used for grain elevator conveying, header feeding and trough conveying of grain and soybean harvesters.
2.3 Standard Heavy-Duty Transmission Chains
12A, 16A, 16AH thickened roller chains are adopted for high-power transmission parts of agricultural machinery. They are used for driving cutter bars, reel wheels and power transmission systems of large agricultural equipment, featuring high tensile strength and strong fatigue resistance.
2.4 Special Custom Agricultural Chains
Including special attachment chains, scraper integral chains, short-pitch lifting chains, etc. Customized hole spacing, attachment shapes and chain lengths are available to meet the modified and personalized assembly needs of different brands of agricultural machinery.
3. Harsh Working Conditions for Agricultural Chains
Agricultural chains work in extremely complex and harsh farmland environments all year round, facing multiple abrasion and damage factors:
- Abrasive wear: Long-term friction with soil, sand, crop straw, chaff and plant residues causes continuous wear on chain sleeves, rollers and pins.
- Impact load: Frequent start-stop, uneven crop feeding and bumpy field operation bring instantaneous impact force, leading to chain fatigue deformation and fracture.
- Humidity and corrosion: Dew, rainwater and muddy farmland cause oxidation and rust of chain parts, accelerating component aging.
- Long-time continuous operation: During the harvesting season, the equipment works continuously for a long time, requiring the chain to have ultra-high fatigue resistance and stability.
4. Core Manufacturing Technology and Performance Advantages
4.1 High-Quality Material Selection
Chain plates are made of high-strength 45Mn, 40Cr and 42CrMo alloy steel; pins, sleeves and rollers adopt carburized alloy steel. The materials have high hardness, good toughness and strong bearing capacity, effectively resisting impact and abrasion.
4.2 Professional Heat Treatment Process
Adopts shot peening strengthening, high-frequency quenching and carbonitriding composite heat treatment technology. The surface hardness of chain parts is improved, the internal toughness is maintained, the wear resistance is greatly enhanced, and the chain elongation rate is effectively reduced.
4.3 Precision Assembly & Surface Treatment
Precision machining ensures matching clearance between components, avoiding jamming caused by dust and debris. Standard finished products adopt blackening and oil immersion treatment; customized galvanizing and nitriding treatment are available for wet and corrosive working conditions to improve anti-rust and anti-corrosion performance.
5. Main Application Scenarios
- Harvester System: Header feed chain, middle trough scraper conveyor chain, grain elevator lifting chain, cutter and reel drive chain, suitable for wheat, rice, soybean, corn and other crop harvesters.
- Planting Machinery: Seed transmission chain and feeding chain of seeders, ensuring uniform and stable seed delivery.
- Forage & Processing Machinery: Conveyor and transmission chains of balers and straw crushers.
- Field Management Machinery: Power transmission chains of cultivators and rotary tillers.
6. Professional Selection Guide
- Conveying parts: Priority to S55, S62 agricultural special chains and C2060H heavy-duty double-pitch chains, matched with scrapers for material feeding and lifting.
- High-power transmission parts: Select thickened 16AH and 12A standard roller chains to bear high torque and impact load.
- Wet and muddy farmland: Choose chains with galvanized or nitriding anti-corrosion treatment.
- Dry and dusty farmland: Adopt standard blackened and oil-immersed wear-resistant agricultural chains.
7. Industry Common Problems & Solutions
7.1 Chain Elongation and Tooth Skipping
Caused by insufficient material hardness and unqualified heat treatment. Solution: Adopt alloy steel materials and secondary strengthening heat treatment to control the elongation rate within the industry standard range.
7.2 Easy Rust and Short Service Life
Caused by humid working environment and unqualified surface treatment. Solution: Upgrade anti-corrosion technology and customize surface treatment according to working conditions.
7.3 Fracture Under Impact Load
Caused by poor toughness of chain plates. Solution: Optimize material ratio and shot peening process to balance hardness and toughness.
8. Product Features & Market Advantages
High wear resistance, low elongation, strong impact resistance and excellent anti-fatigue performance. The products are fully compatible with mainstream agricultural machinery brands such as Kubota, Yanmar, Jin Dafeng and Lovol. They support OEM customization and sample processing, with complete specifications and sufficient spot supply, meeting the replacement and supporting needs of global agricultural machinery markets.
Tempo del pub : 2026-09-15 09:02:33
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