Matt black cupboard knobs,flat black bar cabinet knobs

When many friends first buy ukri, they may have a question: is it better to choose the open knob or the closed KNOB? Which of the two knobs is stronger and more durable?

Therefore, today I will answer this question in detail, which has been puzzling you, making you confused and even misleading.

The "matt black cupboard knobs", also known as the "string winder", is composed of a metal rod used to fix the strings, a gear shaft, and a knob screwed by hand. According to our custom, the whole part is generally referred to as "knob".  

When buying a piano, you may have had doubts about the choice of open and closed string buttons. Some friends may also have misunderstandings in this regard. They think that the closed knob will be more stable, but it is not the case.

There is a misunderstanding that "closed knobs are more stable than open knobs", which is largely because in many introductions of introductory instruments, the key publicity knobs are "closed knobs", which are more stable to use.

Indeed, among the most low-end products, open knobs use less materials and can achieve the lowest cost.

The price of the entry-level piano we usually buy is more than 300. The material will be much better. Generally, the knob shown in the above figure will not appear. But in fact, the quality of the knob is mainly determined by the gear, rotating shaft and other mechanical structures, and has nothing to do with the closure and opening of the knob. When the manufacturer equips the product with knobs, it is more about the coordination of appearance. Of course, the knob of a good piano will be better whether it is open or closed.

Usually, classical heads are equipped with development knobs to reflect the "retro" style.

It is recommended that you do not have to worry about the stability of the knob when purchasing. The selection of the knob can be completely determined according to your own aesthetics. Generally, I think the stability of a brand piano with a price of more than 300 yuan is enough.

The most common problem is that the screws are loose, resulting in noise when playing the piano. This situation is not a quality problem. The screws are naturally loose during playing or transportation. It is unavoidable for both entry-level piano and high-end single board piano. Just tighten them with a screwdriver.

There are several situations in which you are angry:

1. The knob is made of wood, which is easy to crack and eventually fall off.

1. The knob is made of low-grade plastic (usually soft, with a little frosted texture), which will wear, become loose, and finally fall off.

For the above two questions, you can ask the business or manufacturer for a set of flat black bar cabinet knobs. Those with strong hands-on ability can replace them by themselves, and send them back to the business if they feel troublesome. This is a quality problem for which the business is responsible.

The most serious problem is the mechanical part of the flat black bar cabinet knobs. The common situation is that after clearly adjusting the sound, the string loosens again after a period of time. In this case, it is necessary to judge whether it is the string problem, because the new string is also easy to run. If only one of the same four strings is easy to run, there is something wrong with the knob. In case of this kind of problem, the whole knob needs to be replaced. If your piano is still a very old product, it may not be able to match the appropriate knob. And sometimes, in order to keep the appearance consistent, all the knobs should be replaced when one knob is broken.

Replacing the whole matt black cupboard knobs requires a high level of practical ability. It is recommended that you return to the factory and let a professional master operate it.

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