About

HaoLi Custom Spring is a trusted manufacturer of high-performance springs for agricultural machinery, combining more then 20 years of expertise with cutting-edge technology. We specialize in designing and producing durable, precision-engineered springs that withstand the toughest farming conditions, ensuring reliability for tractors, harvesters, seeders, and more.

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Our Products
✔ Tractor & Implement Springs – Suspension, clutch, and valve springs
✔ Harvester/Baler Springs – High-cycle fatigue-resistant designs
✔ Seeder & Plow Springs – Corrosion-treated for longevity
✔ Custom OEM Solutions – Tailored to your machinery’s specifications

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Why Choose HaoLi Custom Spring?
✅ Advanced Manufacturing – CNC spring coiling, robotic testing, and automated heat treatment
✅ Quality Certified – Compliant with ISO 9001, SAEJ172/J508 DIN EN 10270, and DIN EN2095 standards
✅ Material Excellence – Premium steel ( SAE5160, 304 stainless) for wear/rust resistance
✅ Global Reach – Timely delivery to Australia, North America, South America markets, Europe, etc.
✅ End-to-End Support – From design prototyping to bulk production

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Partner With Us
We collaborate with agricultural equipment manufacturers worldwide to deliver springs that enhance performance and reduce downtime.