What crushing equipment is required for granite sand production? What is the sand-making process?

Granite features uniform structure, hard texture, and attractive coloration, making it an excellent construction aggregate. Resistant to weathering, its aesthetic appeal and surface luster can endure for over a century. Due to its high hardness and wear resistance, granite serves not only as premium building decoration and hall flooring but also as the material of choice for outdoor sculptures. As a vital component in the sand and gravel aggregate industry, granite finds extensive applications across various sectors due to its high hardness, durability, and excellent workability. Crushing this rock typically requires coarse crushing, medium crushing, and fine crushing/shaping equipment.

Granite Sand-Making Process:

Due to granite's extreme hardness, sand production typically requires three stages: jaw crusher + cone crusher + sand maker.

First, granite enters the jaw crusher for primary crushing. Aggregate meeting specifications is conveyed by belt to the cone crusher for secondary crushing, while undersized material is returned via a refeeding belt to the jaw crusher for reprocessing. After processing through the cone crushing station, qualified aggregates are conveyed by belt to the sand maker for sand production, while unqualified aggregates are returned via the return belt to the cone crusher for re-crushing. Material crushed in the sand maker can be directly screened at the screening station into finished sand and gravel products of different particle sizes.

Common crushers used throughout the crushing process are as follows:

Jaw Crusher:

As a primary crusher, the jaw crusher boasts a compressive strength of up to 320 MPa, suitable for initial crushing of high-hardness materials across various industries. OCP Heavy Industry's C-series jaw crushers integrate European design concepts with practical optimizations. Featuring innovative structure, aesthetic design, unique chamber configuration, superior operational characteristics, high throughput, large crushing ratio, and energy efficiency, they are widely applicable for coarse crushing of diverse materials in construction, building materials, transportation, mining, chemical, and water conservancy industries. The crushing chamber features opposing jaw plate teeth (movable and fixed jaw plates), enhancing efficiency when processing exceptionally hard materials.

Cone Crusher:

Employing laminar crushing with a material layer protection device, this machine utilizes the laminar crushing principle to deliver exceptional reliability and superior finished product particle shape. The HPY Series Multi-Cylinder Hydraulic Cone Crusher produced by OCP Heavy Industry represents our optimized and upgraded new-generation multi-cylinder hydraulic cone crusher. Compared to similar models, it offers higher production capacity, greater crushing ratio, superior product particle shape, lower energy consumption, higher automation, enhanced reliability, simplified operation and maintenance, and reduced wear part costs.

Sand Maker:

The equipment primarily consists of a feed hopper, crushing chamber, distributor, rotor, main shaft assembly, base, and transmission system. OCP Heavy Industry's P Series Vertical Impact Crusher features a deep-cavity rotor for increased throughput and reduced wear part consumption. Its fully optimized chamber design ensures optimal material movement trajectories and discharge angles, delivering superior crushing results. Comprehensive body protection extends service life. This equipment offers both “stone-on-stone” and “stone-on-iron” crushing modes. Both modes can utilize the same crushing chamber, allowing for easy conversion between “stone-on-stone” and “stone-on-iron” crushing through simple component replacement. This adaptability accommodates a wider range of operating conditions and meets diverse crushing and shaping requirements for different materials. It demonstrates superior performance compared to other equipment, particularly for medium-hard, ultra-hard, or abrasive materials such as sandstone, granite, basalt, silicon carbide, emery, bauxite, and magnesia.

(Technical parameters and data mentioned herein are subject to updates with product upgrades. Click website customer service for the latest equipment specification sheet.)

OCP Heavy Industry Technology Co., Ltd. is a robust joint-stock enterprise specializing in R&D, production, sales, and service. We focus on developing and manufacturing complete sets of equipment for crushing, screening, grinding, washing, feeding, conveying, environmental protection, dust removal, as well as steel, metallurgy, and steel slag processing and recycling. Our products are widely used in the crushing and processing of metals, non-metallic minerals, energy raw materials, and metallurgical waste residues within the steel and metallurgical sectors. We welcome everyone to visit OCP Heavy Industry for on-site inspections of our facilities and crushers, and to consult on crusher selection. Our professionals will recommend the most suitable crusher based on the properties of your material and the characteristics of your production region! Click the website chatbot for immediate free consultation, available 24/7.