Elementor #1143
How EN 13900-3 Ensures Your Constant Force Springs Last Longer More than 2 results are available in the PRO version (This notice is only visible to admin users) What Is EN 13900-3, and Why Focus on “Longevity”? EN 13900-3 is the European standard specifically for constant force springs, developed by the European Committee for Standardization (CEN). Unlike other spring standards that only specify basic dimensions, EN 13900-3 places heavy emphasis on fatigue life and force stability over time—two factors that directly determine how long a spring will perform reliably in your equipment. For example, the standard requires a minimum fatigue life of 50,000 cycles for constant force springs. But at our factory, we optimize the heat treatment process (per EN 13900-3 guidelines) to achieve a fatigue life of ≥100,000 cycles—doubling the service life of our customers’ equipment. 2 Key Requirements of EN 13900-3 for Longer Spring Life 1. Strict Fatigue Testing ProtocolsEN 13900-3 spe
5 Pitfalls to Avoid
5 Mistakes to Avoid When Choosing Stainless Steel Constant Force Springs for Medical Equipment More than 2 results are available in the PRO version (This notice is only visible to admin users) Why Medical Equipment Demands “Higher Standards” for Constant Force Springs Medical equipment (e.g., insulin pens, surgical retractors) relies on constant force springs for precise, repeatable motion—even a tiny force deviation or material contamination could risk patient safety. This is why medical-grade springs must meet stricter standards than industrial ones, such as 316L stainless steel compliant with ASTM A240 and RoHS environmental requirements. However, many buyers still make mistakes when selecting springs, leading to delayed projects or increased costs. Below are the 5 most common pitfalls and how to avoid them. Mistake 1: Choosing 304 Stainless Steel Instead of 316L Why it’s wrong: 304 stainless steel meets general corrosion resistance needs but cannot withstand frequent
ASTM A313 blog
Why ASTM A313 Stainless Steel Is the Backbone of High-Quality Constant Force Springs More than 2 results are available in the PRO version (This notice is only visible to admin users) What Is ASTM A313, and Why Does It Matter for Constant Force Springs? ASTM A313 is a globally recognized standard developed by the American Society for Testing and Materials (ASTM) specifically for stainless steel spring wire. Unlike general stainless steel standards, it focuses on the elasticity, fatigue resistance, and surface quality that are critical for spring performance—exactly the properties constant force springs need to maintain stable force output over tens of thousands of cycles. 3 Key Benefits of ASTM A313 Compliance for Your Business Reduced Equipment Failure Risk ASTM A313’s strict surface quality requirements (no cracks, scratches, or impurities) prevent spring breakage during use. A customer in the electronics industry once reported that after switching to our ASTM A313-compliant springs,