First, let's follow the editor to understand what the international standards for manufactured sand are like?

According to national standards, any manufactured sand or mixed sand that has undergone soil removal treatment is collectively referred to as artificial sand. Specifically, manufactured sand is defined as rock particles with a particle size of less than 4.75mm, produced by mechanical crushing and screening, but excluding particles of soft rock and weathered rock.

Artificial sand is currently mostly medium to coarse sand, with a fineness modulus between 2.6 and 3.6. It has stable and adjustable particle gradation and contains a certain amount of stone powder. Except for the increase in the 150μm sieve residue, the remaining sieve residues mostly appear as triangular or rectangular prisms, with a rough surface and sharp edges. However, due to differences in the mineral sources of manufactured sand production across the country, as well as variations in equipment and processes for processing manufactured sand, the particle shape and gradation of produced manufactured sand may vary significantly. For example, some manufactured sands have more flaky particles, while others have a particle gradation that is coarse at both ends and fine in the middle. As long as it meets all the technical requirements for artificial sand in the national standards, it can be used in concrete and mortar. Those that do not meet the technical requirements for artificial sand in the national standards cannot be used, as the particle shape and gradation of manufactured sand can be adjusted and improved. In this regard, artificial sand is fundamentally different from natural sand. Mixed sand reduces these characteristics as the proportion of manufactured sand increases.

During this critical period of industry transformation and upgrading, China's sand and gravel equipment has been committed to promoting the sand and aggregate industry. To achieve successful expansion into international markets for the manufactured sand industry, it is essential to choose high-quality sand and gravel equipment to produce products that meet international standards. Henan Zhongji Industrial Technology Co., Ltd. has introduced the V6S series vertical shaft impact crusher, which combines stone shaping and manufactured sand production functions. With a new four-wheel design, it offers higher material throughput and greater output.

The V6S series vertical shaft impact crusher incorporates years of R&D experience and technical concepts. It adopts a new four-port impeller design structure and special sealing technology to prevent oil leakage in the bearing housing, among other advanced processes. This new sand-making and crushing equipment features multiple superior technologies, offering energy efficiency, long service life, and wide applicability. It helps large sand yards gradually move toward規(guī)模化 and centralized production to meet national environmental and capacity requirements. The "stone-on-stone" working principle reduces equipment wear and extends service life. Importantly, the manufactured sand processed by the V6S fully complies with stringent export standards, helping customers achieve rapid international expansion strategies.