
High-Strength Agricultural Chains - Heavy-Duty, Wear-Resistant
Welcome to HANGZHOU PERPETUAL! We supply high-strength, weather-resistant agricultural chains (SP/SH/A/CA/S series) with ANSI/ISO certifications, ideal for tractors, harvesters—your trusted farm machinery partner.
Products Introduce
HANGZHOU PERPETUAL’s agricultural chains (SP/SH/A/CA/S series) comply with ANSI/ISO/DIN standards and hold ISO 9001/CE certifications. High-strength, wear-resistant, and corrosion-proof, they endure harsh farm conditions (-30℃~60℃) and serve tractors, harvesters, seeders for power transmission and material conveying.
Product Center
Product Advantages
HANGZHOU PERPETUAL’s agricultural chains stand out with comprehensive advantages rooted in strict standards, premium craftsmanship, and tailored design. Combining international compliance, robust performance, and user-centric value, they perfectly address the harsh and diverse needs of agricultural operations—here are the core highlights:

Core Performance & Manufacturing Advantages
Superior Durability: Crafted with high-quality materials (20CrMnTi alloy steel, GCr15 bearing steel) and precision heat treatment, ensuring high tensile strength (25-35% higher than ANSI standards for SH/SP series) and resistance to impact, wear, and corrosion. Harsh Environment Adaptability: Designed to withstand -30℃~60℃ temperature fluctuations, dust, moisture, and crop residues, with anti-clogging structures and rust-proof surface treatments (salt spray test ≥500 hours). Strict Standard Compliance: Meets international standards (ISO 606:2015, ANSI B29.1, DIN 8187) and holds ISO 9001, CE, SGS certifications, ensuring compatibility with major machinery brands like John Deere and Kubota.
Application Adaptation & User Value Advantages
Wide Compatibility: Comprehensive product series (SP/SH/A/CA/S/C) cover power transmission, material conveying, and specialized needs for tractors, harvesters, seeders, and more. Precision & Reliability: Offers Grade 6 high-precision chains for seeders (uniform spacing) and Grade 7-8 cost-effective options, with strict pitch tolerance (≤±0.05mm) for stable operation. Low Maintenance & Longevity: Robust structure, wear-resistant components, and field-friendly maintenance (easy lubrication, replaceable parts) reduce downtime and extend service life.

Technical Specifications
Our agricultural chains’ technical specifications are engineered to meet the rigorous demands of agricultural machinery, adhering to global standards and precision manufacturing. Covering core parameters, compliance criteria, and structural-material technologies, they ensure reliability, durability, and compatibility across diverse farming scenarios—here’s the detailed breakdown:

Basic Core Parameters
Pitch (p): Center distance between adjacent pin axes, core load-bearing parameter. Range: ANSI #40 (12.7mm) - #120 (38.1mm), DIN 10B (15.875mm) - 32B (50.8mm); pitch tolerance ≤±0.05mm (ANSI #40-#80). Roller Diameter (d₁): Optimized for sprocket meshing and anti-clogging, d₁≈0.625p (ANSI) or 0.571p (DIN). Range: 8mm - 30mm (e.g., ANSI #60→19.05mm). Pin Diameter (d₂): Critical for shear strength, thicker than industrial chains (d₂≈0.4p). Range: 5mm - 20mm (e.g., ANSI #50→7.94mm). Breaking Load (F₈): Tested per ISO 606:2015/SAE J1940. Range: 20kN - 800kN (heavy-duty tractor chains→500-800kN). Operating Speed (v): 0.5-3m/s (power transmission); 0.1-1.5m/s (material conveying). Weight per Meter: 1kg/m - 30kg/m, balanced for strength and energy efficiency.

Precision Grades & Standard Compliance
Precision Grades (ISO 1328-1) Grade 6: High precision for seeders; pitch cumulative tolerance ≤±0.04mm/10 links, ensuring uniform seed spacing. Grade 7-8: Most common for tractors/harvesters; pitch cumulative tolerance ≤±0.06mm/10 links, balancing strength and cost. Grade 9: Low precision for auxiliary components, cost-effective for non-critical transmission. International Standards Compliance Core standards: ISO 606:2015, ANSI B29.1-2014, DIN 8187/8188:2017, JIS B1839:2010, GB/T 1243-1997. Certifications: ISO 9001, ISO/TS 16949, SGS 14001, CE, FDA 21 CFR Part 177 (grain-contact chains).

Structural & Material Technologies
Material Selection Link Plates: 20CrMnTi (carburizing+quenching, HRC58-62) for heavy-duty; 45# (quenching+tempering) for light-duty. Pins/Bushings: GCr15 (HRC60-64) for high impact; 20CrMnTi (carburizing, case depth 1.0-1.5mm) for general use. Rollers: 10# (carburizing+quenching) for standard; GCr15 for high wear. Special Environments: 304/316 stainless steel or galvanized steel (salt spray test ≥500 hours). Structural Design Optimization Multi-row structure (2-4 rows) for heavy-duty chains, load capacity 2-4x single-row. Anti-clogging design: Enlarged roller spacing, open link plates, smooth surfaces. Attachments: Flat/bent plates (≤80kg/attachment), buckets (≤150kg/bucket), extended pins (≤200kg/attachment). Core Manufacturing Processes Heat treatment: Alloy steel carburizing (850-950℃)→quenching→tempering; carbon steel quenching→tempering. Machining: Roller grinding (circularity ≤0.01mm), pin/bushing honing (Ra≤0.4μm). Surface treatment: Hot-dip galvanizing, electrophoretic coating, hard chrome plating.

Contact Us
Application

Contact Us
Whether you have inquiries about our agricultural chain series (SP/SH/A/CA/S/C), need customized solutions for specific machinery, or want to discuss cooperation opportunities, we’re here to support you wholeheartedly! With over 20 years of experience, global certifications, and partnerships spanning 80+ countries, HANGZHOU PERPETUAL is committed to delivering professional responses and reliable services—feel free to reach out through the following channels:
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- ESCALATOR STEP CHAIN.pdf
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- STEEL PINTLE CHAIN.pdf
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FAQs
Our Certificate
Our Certificate reflects our unwavering commitment to quality, compliance, and reliability in agricultural chain manufacturing. Adhering to global standards and rigorous quality control systems, our products have obtained authoritative certifications that validate their performance, safety, and compatibility with international agricultural machinery requirements. Here’s an overview of our key certifications:
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Keep In Touch With Us
Whether you have questions about our SP/SH/A/CA/S/C series agricultural chains, need customized solutions, or want to discuss cooperation, we’re ready to assist! With global certifications and professional support, feel free to reach out—we’ll respond promptly to meet your agricultural machinery needs.
Mob:+86 571 8617 7411
E-mail:info@plwpt.com



