Each expander is produced using high-quality materials such as S.S. Wire (SUS 304), IS 4454 Grade-II, and KS-5, with the chemical composition, tensile strength, and hardness of each material rigorously tested to meet the highest quality standards.

ARTI SPRINGS manufactures a wide range of Hump Expanders for piston rings in various sizes, catering to:
To ensure precision and consistency, every product undergoes thorough inspections at multiple stages of production. These inspections are reinforced by Statistical Process Control (SPC), allowing continuous monitoring and control of critical parameters.
Our Hump Expanders are available in both slotted and non-slotted designs, offering flexibility to suit diverse application requirements.
At ARTI SPRINGS, we believe that the foundation of a reliable product lies in the quality of its raw materials. That’s why our Hump Expanders are manufactured using premium-grade materials such as high-carbon spring steel, stainless steel (SUS 304, SUS 301), and other industry-certified alloys known for their durability, elasticity, and resistance to heat and wear.
At ARTI GROUP OF INDUSTRIES, we believe that the foundation of a reliable product lies in the quality of its raw materials. That’s why our Hump Expanders are manufactured using premium-grade materials such as high-carbon spring steel, stainless steel (SUS 304, SUS 301), and other industry-certified alloys known for their durability, elasticity, and resistance to heat and wear.
Every batch of material is rigorously tested for:
We are committed enhance customer satisfaction by fulfilling their requirements through continual improvement in our process and quality management system by involving our employees and supplier
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