1. Tungsten steel nozzle: the tungsten steel nozzle is strong and durable, but easy to turn white, friends who are not afraid of trouble, or SMT newcomers can choose the tungsten steel nozzle. If it becomes white, use an oil-based pen to paint, and you can continue to use it.
2. Ceramic nozzle: The ceramic nozzle is never white, but it is brittle and easy to break. Careful use can avoid or reduce the occurrence of breakage.
3. Diamond-steel nozzle: strong, easy to use, never whitish, but extra expensive and not cost-effective.
4. Plastic nozzle: When the surface of the material is uneven or the material is sticky, it is suitable to choose the plastic nozzle, but the life of the plastic nozzle is not long. It is recommended to buy more plastic nozzles for spare when ordering the plastic nozzle. When the nozzle tip is worn out, you can directly replace the glue nozzle tip yourself.
Nozzle size:
For standard materials, the nozzle specifications are basically fixed. Take Samsung SM for convenience. 0805 materials correspond to CN065 nozzles, 0603 materials correspond to CN040 nozzles, etc. When some materials are not big or small and have strange shapes, You need to customize the nozzle.
Nozzle shape:
The shape of the suction nozzle is square hole, round through, V groove, etc. Custom-made nozzles generally choose flat suction points according to the shape of the material. Some are made of elongated nozzles, and the grooves that extend the material are used for suction. Some are made into a back-shaped according to the edge of the material, and some are two-sided. Use a flat surface at the end and build a bridge if the middle is uneven. Some materials are sticky and are not easy to discharge, so some grooves should be made in the nozzle wall or made into rubber heads.