Knob spring LF L1250332

A knob spring provides the tension that returns a control knob to its resting position after adjustment. In commercial coffee machines, this small but essential component ensures that settings for water temperature, steam pressure or brew strength remain stable until the operator deliberately changes them. Without a functioning spring, knobs can slip or fail to hold their position, leading to inconsistent results or unintended adjustments during operation.

The sequence of use is straightforward: when the operator turns the knob to select a setting, the spring compresses or stretches, storing mechanical energy. Releasing the knob allows the spring to return to its original shape, pulling the knob back to its neutral position and locking the chosen setting in place. This mechanism is critical for maintaining precise control over brewing parameters, particularly in high-volume environments where consistency is essential.

This LF knob spring measures 9x12 mm and is constructed to match the specifications of the original part. It is designed as a direct replacement for the spring in control knobs of ASTORIA CMA and WEGA coffee machines, ensuring compatibility with the tension and travel requirements of those models.

The spring fits the following ASTORIA CMA coffee machine models: ADRIA, ARGENTA, DENISE, DORA, GRETA, LISA, PRATIC, TANYA-RS and VANIA. It also fits WEGA coffee machines under the IO series. As a spare part, it restores the intended function of the control knobs without modification to the existing assembly.

This component is listed in the catalogue under coffee machine spare parts, specifically for control mechanisms.