What are the different types of dumbbells?

Rubber dumbbell
Rubber-coated dumbbell: inside is pig iron (low grade is scrap iron smelting, middle grade is scrap steel cast iron), the outside is made of rubber and wrapped with a baler and pressed. According to the material, rubber-coated dumbbells are roughly divided into two types: one is made of recycled rubber. One is the production of new glue. Both types of rubber are a blend of petroleum derivatives and rubber.

Dipped dumbbell
Plastic impregnation means that the dumbbell hair pieces are put in plastic water to impregnate the plastic until the outer shell completely wraps the dumbbell hair pieces. Generally, PVC impregnation liquid is used. Of course, PE impregnated powder is also useful. (PVC is polyvinyl chloride and PE is polyethylene. The only difference between the two is that pvc has chlorine and cannot be used to wrap food, but PE can. And PVC is cheaper. Plastic-impregnated dumbbells usually do not fade, and the phenomenon of paint loss There is absolutely no modeling.

Recycled rubber

Recycled rubber: It is a mixture of recycled waste rubber. Most of the rubber-coated dumbbells on the market are recycled rubber dumbbells. Compared with new rubber dumbbells, recycled rubber dumbbells emit unpleasant smells, harmful odors, and are unhealthy. And the recycled rubber is easy to age. After training, there may be unfavorable factors such as odor remaining on the hand.

Plating dumbbell
Plating dumbbell: It is a mid-range product among dumbbell products. The material is mainly cast iron, which is hard, heavy and dense, and the surface of the dumbbell is electroplated. The so-called electroplating is the process of plating a thin layer of other metals or alloys on certain metal surfaces using the principle of electrolysis to prevent corrosion and improve aesthetics. .

Painted dumbbell

Painted dumbbells are high-end products in dumbbell products. They are made of high-quality cast iron. After the surface is electroplated, the paint process is used to coat the dumbbells with a good-looking outer paint. Thanks to the baking paint process, the shape of the dumbbell is more beautiful than electroplating.