Knob, as its name implies, is a device that drives a mechanical drive shaft to control commands by rotating it, including temperature control, volume control, and other multifunctional controls. It commonly used in various electrical equipment, such as washing machines, audio equipment, car air conditioners, etc.

The main structure of the knob is composed of the shell body and the central axis. Different shapes can be designed according to different needs, and can be divided into various categories by shape, such as control knobs, handle knobs, indicator knobs, etc. The pin hole is the key structure of the knob and the mechanical linkage. Therefore, the size of the hole, the depth of the hole, and the style of the hole are the important basis for judging whether it is suitable or not.

Compared to key controls or touch controls, the knob is an intuitive design that can be easily controlled without even looking at it with the naked eye. In addition, the knob can drive the functional requirements of the product by the rotation change of the mechanical linkage device, such as the choice of different cloth cleaning methods on the washing machine, through the knob can simplify the structure of the product, reducing the required volume of the product, thus reducing the cost of the product.

What material is the knob made of?

✔️Aluminum knob

Compared with other metals, aluminum is lighter in weight and has a metallic luster that plastic knobs do not have. Aluminum knobs can be divided into aluminum solid and aluminum shell knobs.

Solid Aluminum: The aluminum bar is turned into one piece for better strength. And the required MOQ is less than the aluminum shell knob. The weight is heavier than plastic, and the operation feel is better. But the price is about twice as much as plastic knobs.

Aluminum shell: The aluminum shell is equipped with a plastic latch hole, which is cheaper than solid aluminum, and can be matched with a variety of latch hole styles.

Q: Why does aluminum have less MOQ than aluminum shells?

A: For aluminum, only the aluminum strips need to be turned. In addition to turning, the aluminum shell also needs stamping and heat treatment steps. In addition, the embedded plastic parts also need to be fabricated and assembled. Therefore, if there is no certain amount, the cost will increase significantly.

✔️Plastic knob

Plastic knobs are less expensive than aluminum knobs. There can be more changes on the shell body, and the colors are more diverse. In addition to the housing body, various forms of pin holes can also be made.

ABS

Most of the plastic materials used in general knobs are ABS. Because ABS is easy to obtain and inexpensive, it is often used in electronic products.

There are many various materials of knobs, but ABS is most popular among them.

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