Custom-designed tension springs in carbon and stainless steel

Cecchi, a historic company based in Florence, Italy, boasts proven experience in spring manufacturing, establishing itself as a leader in the industry. Its excellence is demonstrated in a wide range of products, including tension springs, available in standard lengths of 400 mm or custom designs, made from carbon steel and stainless steel.

Tension springs are helical metal components designed to withstand stretching forces. When pulled, the tension spring seeks to return to its original length. They are commonly used in applications where a return force is needed, such as door closure mechanisms or suspension devices.

Cecchi’s tension springs: materials, finishes, and technical specifications

Cecchi's tension springs are made exclusively from carefully selected raw materials to ensure maximum reliability and longevity. The materials used include C98 carbon steel, 302 or 316 stainless steel, copper/nickel alloys, beryllium copper, and Inconel.

In addition to material selection, Cecchi offers various surface finish options for its tension springs to meet specific aesthetic and corrosion resistance requirements: galvanization, Dacromet coating, phosphating, tin plating, and gold plating.

Cecchi manufactures tension springs in different sizes according to customer specifications, using wire with nominal diameters (d) ranging from 0.15 mm to 5.00 mm.

Among Cecchi's tension springs, there are over 170 models with a standard length of 400 mm, featuring the following technical references:

- Nominal wire diameter (d): from 0.50 mm to 5 mm
- Outer spring diameter (De): from 3 mm to 50 mm
- Total number of coils: between 80 and 800
- Axial load of the spring, i.e., the load the spring returns after compression/elongation (F): between 0.07 N and 2154.58 N
- Deflection (compression/elongation) of the spring (s) calculated for the spring extended to ⅓ of the total length: 133 mm
- Spring rate (R): between 0.001 N/mm and 16.200 N/mm

From electronics to aerospace, mechanical to medical, and even the energy sector and many others: Cecchi's tension springs are extremely versatile and ensure excellent performance across various industrial sectors.

For more information, please contact the company through the provided references.