The main component of limstone is calcium carbonate (CaCO3) and its Mohs hardness is 3. After crushing, limestone will be turned into particles, that is, stone, sand, or further ground into limestone powder which is widely used in building materials,...

Calcite is a calcium carbonate mineral and the most common natural calcium carbonate. Its crystal shapes are diverse, can be crystals, granular, massive, fibrous, bell-like, soil and so on. Knocking the calcite can get a lot of square pieces, hence t...

Mechanical sand is the rock particles made by the crushing and screening equipment with a number of technical indicators such as fineness modulus of 2.6~3.0, stone powder content of 3% to 8%, needle-like 8%, water content of 3% to 5%,etc. It can be w...

Yesterday, Kefid has just ended the 2017 spring Canton Fair tour. At the show, Kefids all-star crushing and grinding equipment received many attention from the worlds mining customers. Canton Fair is Chinas import and export trade fairs which is held...

Recently, Kefid launched a new product - MB5X pendulum suspension mill . The equipment is the five generation pendulum suspension mill developed based on more than 30 years of product experience with a number of patented technology. Compared with the...

In view of the current market demand for high-quality mechanism sand, Kefid developed VU series aggregate optimization system.It uses stone or melon stone and other cheap gravel sand as raw materials with adjustable, environmentally friendly, low-cos...