An important part of the hairdresser is the two rows of teeth with edges that overlap up and down. Generally, the upper row of teeth is called the moving knife, and the lower row of teeth is called the fixed knife; During the use, the fixed knife is still, and the moving knife moves back and forth quickly to cut the hair.

There are many kinds of materials that make up the tool head: fixed tool material moving tool material carbon steel carbon steel stainless steel iron sheet titanium plated alloy ceramic fixed tool and moving tool can also have a variety of combinations, such as: combination (fixed tool, moving tool) shows the advantages of carbon steel+carbon steel: high hardness, high strength, professional cutting tool material; The disadvantage is that the cost is high, carbon steel is not commonly used in the market, stainless steel is not commonly used in the market, stainless steel is not commonly used in the market, stainless steel is common in the market, the tool head is easy to heat, the price is ordinary stainless steel, ceramic is common in the market, good cost performance, ordinary enough iron sheet, iron sheet is easy to heat, not durable, but the price is low titanium alloy, stainless steel is durable, but the tool head is easy to heat, the price is high titanium alloy+ceramic is heat resistant and durable, High prices, cleaning and maintenance.

Generally, the hairdresser adopts a separate structure, and the blade can be removed to facilitate cleaning with water after each use. It is recommended to drop a few drops of lubricating oil after cleaning to protect the cutter head. Electric hairdressers are generally divided into battery type and plug-in type.

The battery type hairdresser does not need to be plugged in, just needs to be fully charged. Generally, the common electric hairdressers on the market include built-in lithium battery, built-in nickel-metal hydride battery, built-in nickel-cadmium battery and external battery, among which lithium battery is generally used in high-end hairdressers because of its excellent electrical efficiency; External batteries and internal nickel-cadmium batteries are rejected because they are not environmentally friendly for foreign markets. Advantages and disadvantages of battery classification: the built-in lithium battery has excellent electrical efficiency, the charging time of the same capacity is shorter, the price is higher, the built-in nickel-metal hydride battery is popular in the market, the price is generally low, the built-in nickel-cadmium battery is generally low, the electrical efficiency performance is generally low, and the external battery is not environmentally friendly (generally two No. 5 batteries are used). For manufacturers, the cost of hair clippers is lower, and they need to buy another battery. The overall cost performance is not high, and it is not environmentally friendly.

2. The plug-in hairdresser with wire is usually used in barber shops, because it is frequently used, it needs continuous power supply. It is convenient to clean the broken hair on the barber.