1.What are puncture resistant shoes?
Puncture resistant shoes are a kind of foot protection work shoes worn by metal stamping, electroplating chemical industry, mechanical equipment manufacturing, printing and packaging, and steel shipbuilding production workshops and areas affected by the harsh external environment.
The puncture-proof midsole is placed on the top of the shoe sole to prevent sharp objects and sharp objects from piercing the sole of the shoe, thereby damaging the sole of the employee. Anti-piercing safety shoes are used to protect the soles of the feet and prevent injuries from various sharp objects. They are mainly used in mining, machinery, construction, metallurgy, logging, transportation and other industries. The hardness of the anti-puncture safety shoes is HRC52, the diameter is 4.Smm±25mm, the tip diameter is 1mm±0.02mm, the length of the steel nail is 60-70mm, the sole is pierced at a speed of 25mm/min, and the puncture resistance is greater than or Equal to 780N for safety purposes.
Accumulations in the workplace, such as the operation of mechanical equipment, transportation equipment, and the use of materials and tools, may cause the danger of nails, metal shavings or other sharp objects piercing or cutting the soles of workers. Damage is the same as mechanical damage. The types of industries and jobs that come into contact with machinery, tools, and materials are extremely common. In addition to the machinery industry, other industries such as transportation and storage have also suffered similar injuries.
2.The types of puncture resistant boots
Puncture proof work boots are mainly made by adding a layer of midsole protection between the sole and the upper, which mainly includes steel midsole and kevlar midsole.We need to understand the difference between steel midsole and kevlar midsole
2.1 Steel midsole VS Kelvar midsole
2.1.1 Steel midsole
The Kevlar midsole is a bit thicker than the steel bottom, and is more flexible than the steel bottom. It can be folded at will, so it has better comfort and softness. However, it also has a disadvantage that it does not have a steel bottom to resist puncture. Although its puncture resistance is not as good as that of a steel bottom, there is no problem when the nail blade is stepped on.
The steel midsole is cut from steel and added to the second layer. No matter what you step on, the sole will not pierce. It protects our feet very well. Although this steel sole can protect our soles, it feels less wearing, heavier and not so soft.
3.How to test the puncture resistance of safety shoes?
In order to let everyone better understand and choose safety shoes, the following introduces the common methods of nail resistant shoes performance testing.
Put the shoe sole pattern on the chassis of the testing machine, and install the pressure plate and test nails on the testing machine. The test nail is a head with a truncated tip. The hardness of the nail head should be greater than 60HRC. Then the test nail is pierced through the outsole Until penetration, record the maximum force required, and select four points on each sole for testing. The distance between each point is not less than 30mm, and the distance from the edge of the insole is greater than 10mm.
Finally, let the editor introduce a few work boots with steel plate and steel toe kevlar midsole safety shoes.
4.Puncture resistant boots reviews
4.1 Mid cut puncture resistant sole by plate work boots