Choosing a concrete sand making machine requires comprehensive consideration of sand quality standards, equipment performance, production requirements and cost-effectiveness. The grading and fineness modulus of concrete sand are the core indicators. The fineness modulus should be controlled between 2.3 and 3.0, and the grading should be in line with the distribution of ‘more in the middle and less at both ends’, so as to reduce the amount of cement and improve the strength of concrete.
Choosing a concrete sand making machine Huashengming Heavy Industry recommends you to use roll sand making machine.
Precise particle size control, high quality of finished products
Discharge uniformity: through the crushing method of double-roll extrusion and grinding. The discharge size (usually 1-5mm) can be precisely controlled to meet the high requirements of concrete sand on particle shape and gradation.
Reduction of over-crushing: Compared with hammer crusher, its crushing process is gentler. Which effectively reduces the proportion of pulverised materials (the pulverisation rate is as low as less than 10%). Avoids excessive impurity content in sand and gravel, and improves the strength of concrete.
Optimisation of particle size: the output sand particles are cubic. With smooth surface and reasonable grading, which can enhance the fluidity and compactness of concrete.
High energy efficiency and low operating cost
High crushing efficiency: the synchronous rotating design of double rollers can achieve continuous crushing and large processing capacity (4-400 tonnes per hour), which is suitable for large-scale sand and gravel production line.
Low energy consumption: the extrusion crushing method saves 30%-50% energy compared with impact equipment, and the hydraulic system supports intelligent adjustment to further optimise energy consumption.
Low maintenance cost: modular design and wear-resistant roller skins (life expectancy up to 2-3 years) reduce the frequency of replacement of wearing parts, and daily maintenance only requires lubrication and gap adjustment.
Environmental and adaptability advantages
Dust and noise control: Closed structure and low-impact crushing principle significantly reduces dust dispersion, noise is lower than 85 dB, in line with green production standards.
Wide material adaptability: It can handle a wide range of materials such as concrete blocks, construction waste, hard rocks (e.g. granite, basalt), etc., and crushes both dry and wet materials.
Flexible adapted scenes: suitable for sand and gravel plants, concrete mixing stations, construction sites and other scenes, supporting the transformation of old plants and the construction of new production lines.
Intelligent and convenient operation
Intelligent adjustment system: Hydraulic or automatic control system can remotely monitor the status of the equipment and adjust the roll spacing in real time to ensure production stability.
Easy operation: 1 person can complete the start-stop and parameter setting. Equipped with fault self-diagnosis function, reducing the need for manual intervention.
With double-roller crushing technology. Roller Sand Making Machine achieves precise and fine crushing of materials. Energy consumption is 45% lower than traditional equipment, hydraulic system automatically adjusts pressure, low powder content, precise and controllable grading. Daily output of a single machine can easily break through a thousand tonnes. Rollers have a long wear-resistant life, and the finished sand particles are uniformly cubic and have low impurity content. Which is perfectly suited for concrete, road paving and other high-demanding scenarios.
