ISO 10243:2010 Die Springs

The mould springs are designed to support high loads in limited space. Widespread in moulds for sheet metal work, for plastic moulding and various other industrial applications.

The Springs-on line mould springs are high quality springs, made with special high-performance steel, we can offer a wide range of springs subdivided into different classes of load, with the same diameter.

The ISO 10243:2010 standard defines the following parameters for rectangular section wire compression springs:

• D: housing diameter, also known as external diameter;
• d: lead pin diameter, also known as internal diameter;
• Lo: length of the spring in the resting position, also known as the free length;
• R: load, expressed in Newton, necessary to deflect a 1mm spring (1 Newton = 0.102 kg).

The standard also defines the maximum working deflection values advisable for each spring, the tolerance of the free length and the identification colours.

The selection of the spring is facilitated by the catalogue table, that indicates the load values and stroke of two different hypothesis of working deflection. The load values and approximate stroke for lock springs are also supplied.