Silica Sand Processing Plant: How To Produce High-Purity Sand?

Building a silica sand processing plant is important. Producing high-purity silica sand is the goal. Silica sand is a raw material. Many industries use it. But raw sand is often not pure enough. It contains impurities. Processing can make it high-purity. A good silica sand production line is needed. This line uses various silica sand equipment. This article guides you. It explains how ordinary silica sand becomes valuable, high-purity sand.

Last Updated: 2025-03 | Estimated Reading Time: 20 minutes

This Article Will Answer:

• What is silica sand? What are its types?
• What are the properties of silica?
• Why can ordinary silica sand double its value after processing?
• What are the uses of high-purity silica sand?
• How to design a processing flow based on raw sand and product needs?
• What key equipment does a high-quality silica sand processing plant usually include?
• How to remove tough iron, clay, and impurities from silica sand?
• Besides washing and beneficiation, are silica sand drying and grading important? How to do them?
• Building a high-purity sand plant: How much investment and operating cost?

What Is Silica Sand? What Are Its Types?

Silica sand is also called quartz sand. It is a granular material. It comes from the disintegration of rocks rich in quartz. Quartz is silicon dioxide (SiO2). So, silica sand is mainly SiO2. It is a common mineral. It is found all over the world. Raw silica sand is mined. It can be found in quarries or riverbeds.

Silica sand has different types. These types depend on several things. These are purity, particle size, and origin.

Main types of silica sand include:

• Natural Silica Sand: This is mined from natural deposits. It can be river sand, lake sand, or dune sand. Natural sand usually contains many impurities. Examples are clay, iron oxides, feldspar, mica, and organic matter. It needs processing to be useful for many industries.
• Processed Silica Sand: This is natural sand that has gone through cleaning and separation steps. These steps improve its purity. They also control its particle size. Processing happens in a silica sand processing plant.
• High-Purity Silica Sand: This sand has a very high SiO2 content. It usually needs intensive processing. This processing removes almost all impurities. High-purity sand is for special uses. These uses need high quality.
• Frac Sand: This is a type of high-purity silica sand. It has very specific properties. It is used in hydraulic fracturing (fracking) in the oil and gas industry. It needs high strength and specific particle shape and size distribution. Frac sand processing is a complex process.
• Glass Sand: This sand is used to make glass. It needs a high SiO2 content and very low iron oxide content. Iron oxide makes glass colored. Glass sand processing focuses on removing iron.
• Foundry Sand: This sand is used for making molds and cores in metal casting. It needs good refractoriness and binding properties. Foundry sand processing focuses on removing impurities that affect these properties.

Understanding the type of raw sand helps determine the processing needed. It also helps define the potential value of the final product. Different sand types need different equipment and processes in a silica sand processing plant.

What Are The Properties Of Silica?

Silica, which is silicon dioxide (SiO2), has unique properties. These properties make high-purity silica sand very valuable. The properties also explain why it is used in so many industries. Understanding these properties helps see why processing is needed. It shows why removing impurities is important.

Key properties of silica (SiO2) include:

• High Hardness: Silica is hard. Its Mohs hardness is about 7. This makes it wear-resistant. It is useful in things like abrasives. It also means it can wear down processing equipment.
• High Melting Point: Silica has a very high melting point. It is around 1713°C. This property makes it useful in high-temperature applications. These include refractories and foundry molds. It also makes it difficult to melt for glass production without additives.
• Chemical Inertness: Silica is not very reactive. It does not easily react with most chemicals. This makes it stable. It is good for use in harsh environments. This property is important in industries like chemicals and ceramics.
• Electrical Insulator: High-purity silica does not conduct electricity well. This property is important in the electronics industry. It is used in semiconductors and insulators.
• Optical Transparency: Very pure silica is transparent. It transmits light well. This property is essential for making glass, fiber optics, and lenses. Impurities can block or distort light.
• Heat Resistance: Silica can handle high temperatures without changing much. This is why it is used in kilns and furnaces.

These properties are strongest in pure silica. Impurities affect these properties. For example, iron oxide (Fe2O3) lowers the melting point and adds color. Clay and organic matter reduce chemical purity and affect strength. This is why Silica Sand Beneficiation is necessary. A silica sand processing plant removes impurities. It makes the sand meet the high standards required by these industries. The higher the purity of SiO2, the more valuable the sand becomes.

Why Can Ordinary Silica Sand Double Its Value After Processing?

Raw silica sand is a basic commodity. Its value is low. It contains many impurities. These impurities lower its quality. They limit its uses. Processing removes these impurities. It improves the sand’s purity and consistency. This increases its value significantly. Sometimes, the value can more than double. This is because the processing makes it suitable for high-value applications.

Consider these points:

• Removing Impurities Increases Purity: Raw sand might have SiO2 content of 90-95%. After processing, it can reach 98%, 99%, or even 99.5% SiO2. Iron impurities are the “number one enemy” of silica sand quality. Iron changes color. It causes defects in glass. Removing iron is a key goal in processing. Clay makes the sand sticky. It affects grading. Removing clay makes the sand cleaner and easier to handle. Other impurities like feldspar and mica affect melting points and chemical reactions. Removing them makes the sand meet specific industry standards.
• Controlling Particle Size and Shape: Raw sand has mixed particle sizes. Different uses need specific sizes. Processing includes screening and classification. This sorts the sand into precise size fractions. Different uses need different particle sizes, precise control is important. For example, glass sand needs uniform size. Frac sand needs round particles of a specific size. Processing achieves this. This makes the sand fit high-demand specifications.
• Meeting Industry Standards: Industries like glass, ceramics, electronics, and chemicals have strict standards. They have requirements for SiO2 content, specific impurity limits (especially iron), and particle size distribution. Raw sand usually does not meet these. A silica sand processing plant is designed to meet these exact standards. When sand meets these standards, it is a premium product. Its market price is much higher.
• Opening Up High-Value Markets: Ordinary sand is for construction fill or basic concrete. High-purity processed sand is for making flat glass, solar panels, electronic components, specialized ceramics, and high-end foundry molds. These are high-value markets. Selling processed sand to these markets brings much higher profits.
• Adding Value Through Technology: The processing itself is a technology. It uses specialized silica sand equipment. Examples are crushers, scrubbers, magnetic separators, flotation machines, screens, and dryers. Investing in this silica sand processing technology adds value to the raw material. This justifies the higher price.

So, processing transforms a low-value raw material into a high-value industrial mineral. The quality difference between raw sand and processed high-purity sand is huge. This difference directly translates into a higher market price and better profit margins for the silica sand production line.

What Are The Uses Of High-Purity Silica Sand?

High-purity silica sand is a versatile material. Its unique properties make it essential in many advanced industries. When sand is processed in a silica sand processing plant to reach high purity levels, it becomes suitable for applications where ordinary sand cannot be used. The higher the purity, the more critical the application.

Each application has different purity and particle size requirements. A silica sand processing plant must be designed to meet the specific needs of its target market. Producing sand for glass needs different purification steps than producing frac sand or foundry sand. Knowing the end market helps define the necessary silica sand processing technology.

How To Design A Processing Flow Based On Raw Sand And Product Needs?

Designing a silica sand processing plant flow requires a careful analysis. Analyze raw sand properties. Also, analyze desired product specifications. No two sand deposits are exactly alike. No two product requirements are identical. So, the process flow must be customized. A well-designed flow is efficient and cost-effective. It produces the required quality sand.

Here are the key steps to design a processing flow:

• Raw Material Analysis:
  • Get detailed tests of raw silica sand.
  • Analyze the SiO2 content and the types and amounts of impurities. Examples are Fe2O3, Al2O3, TiO2, K2O, Na2O, clay, mica, feldspar, heavy minerals, and organic matter.
  • Determine the initial particle size distribution.
  • Check if impurities are free particles or attached to sand grains.
  • This analysis is the foundation of the design. It tells what impurities need removing and how hard they are to remove.
• Define Product Specifications:
  • Clearly define the required SiO2 content for the final product.
  • Set limits for key impurities (especially Fe2O3).
  • Define the required particle size distribution. This involves minimum and maximum sizes. It also involves the percentage of material within specific size ranges.
  • Understand any special requirements. Examples are particle shape for frac sand or moisture content limits.
• Select Processing Stages:
  • Based on raw material impurities and product needs, choose necessary process stages.
  • Common stages in silica sand processing include: crushing (if large lumps), scrubbing (Scrubbing removes surface impurities and upgrades sand.), screening, classification, magnetic separation (Iron removal is critical), flotation (Flotation targets specific impurities like feldspar and mica), dewatering (Dewatering reduces moisture), and drying (Drying consumes lots of energy).
  • For example, if sand has a lot of surface clay, intensive scrubbing is needed. If it has iron minerals, magnetic separation is needed. If it has feldspar, flotation is needed.
• Select Specific Equipment:
  • Choose the right type and size of silica sand equipment for each stage.
  • For scrubbing, select scrubbers (Spiral Classifier can sometimes have scrubbing action, or use a Mixer for scrubbing, or dedicated scrubber machines).
  • For iron removal, select magnetic separators. High-intensity wet magnetic separators are often needed for weak magnetic iron minerals.
  • For separating feldspar/mica, select flotation machines.
  • For sizing, select vibrating screens or classifiers. Accurate sizing is key.
  • For dewatering, choose from thickeners, hydrocyclones, or filters.
  • For drying, choose a sand dryer or rotary dryer. Consider energy efficiency.
• Layout and Integration:
  • Arrange the equipment logically on the site. Consider material flow, site topography, and environmental factors.
  • Design conveying systems (belt conveyors, pumps) to move material between stages.
  • Integrate control systems for efficient operation.
• Optimize and Test:
  • Run tests with raw sand using pilot-scale equipment.
  • Adjust the process parameters (like reagent dosage in flotation, magnetic field strength, scrubbing time, screen mesh size) to achieve the desired product quality and yield.
  • Quality control ensures product quality. Plan for regular sampling and testing of the final product.

This systematic approach ensures a silica sand production line is tailored to the specific situation. It maximizes recovery of valuable silica and minimizes waste. Professional engineering support is very valuable during this design phase. They can use their experience with various silica sand deposits and processing technologies.

What Key Equipment Does A High-Quality Silica Sand Processing Plant Usually Include?

A high-quality silica sand processing plant uses a combination of specialized silica sand equipment. Each machine plays a role in removing impurities and sizing the sand. The exact list of equipment depends on the raw sand and desired product purity. But some core machines are common in many silica sand production lines.

Here are some key equipment types usually found:

• Feeders:
  • Receive raw sand from trucks or stockpiles.
  • Provide a steady flow of material into the process.
  • Example: Vibrating feeders.
• Crushers (If needed):
  • Break down large lumps of silica rock or cemented sand.
  • Jaw crushers or cone crushers might be used for crushing larger raw material.
• Scrubbers:
  • Mechanical scrubbers use strong agitation to remove surface impurities like clay, iron coatings, and organic matter.
  • Scrubbing significantly improves sand cleanliness.
  • Types include tank scrubbers, spiral scrubbers, and high-intensity scrubbers.
• Screens:
  • Separate sand particles based on size.
  • Vibrating screens are widely used.
  • Multi-layer screens are used for precise size classification. Accurate screening is essential for controlling final product size.
• Classifiers:
  • Separate particles based on size and settling velocity in water.
  • Spiral classifiers or hydrocyclones are common.
  • They can also help remove fine clay particles (slimes).
• Magnetic Separators:
  • Remove magnetic impurities, mainly iron minerals.
  • Wet magnetic separators are often used for fine sand.
  • High-intensity magnetic separators are needed to remove weakly magnetic iron minerals. Effective magnetic separation is key to lowering iron content.
• Flotation Machines:
  • Used to remove non-magnetic impurities that cannot be removed by gravity or magnetic methods.
  • Examples are feldspar, mica, some heavy minerals, and some iron oxides (like hematite that is non-magnetic).
  • It uses flotation reagents. These reagents attach to the surface of target minerals. Air bubbles lift these minerals to the surface foam in flotation machines.
  • Flotation complements magnetic separation. It targets specific impurities. Different reagents are used for different impurities. For example, fatty acids can float heavy minerals. Amine collectors can float feldspar and mica.
• Dewatering Equipment:
  • Remove water from the sand slurry after wet processing.
  • Thickeners settle solids.
  • Filters (like vacuum filters or filter presses) reduce moisture content further.
  • Dewatering reduces moisture before drying, saving energy.
• Dryers:
  • Reduce the moisture content to the required level for dry screening or final product storage and transport.
  • Rotary dryers or sand dryers are common. Sand tumbles inside a rotating cylinder. Hot air passes through.
  • Fluidized bed dryers are very efficient.
  • Drying is energy-intensive, so choose an efficient dryer.

Each piece of silica sand equipment needs to be selected based on the specific needs of the silica sand processing plant. The quality and performance of these machines directly affect the final product purity and plant efficiency.

How To Remove Tough Iron, Clay, And Impurities From Silica Sand?

Removing impurities is the main challenge in silica sand processing. Raw sand contains various unwanted minerals and materials. These are clay, iron oxides, heavy minerals, feldspar, mica, and organic matter. To produce high-purity silica sand, especially for glass or electronics, these impurities must be reduced to very low levels. Different impurities need different removal methods. A combination of methods is usually needed in a silica sand production line.

Here are common methods to remove tough impurities:

• Washing and Scrubbing:
  • Simple washing removes loose clay and silt.
  • Scrubbing is more intense. It uses mechanical force to rub sand grains together. This removes surface coatings. It breaks up soft mineral aggregates.
  • Scrubbing is a critical step. It cleans the sand grain surfaces. It is very effective against clay and iron coatings.
  • Use scrubbers (Spiral Classifier can help with washing/scrubbing, or use a Mixer for this purpose, or specialized scrubbers).
• Screening and Classification:
  • These methods remove impurities based on size or settling speed.
  • Fine screens remove oversized debris.
  • Classifiers (Spiral Classifier, Hydrocyclone) separate fine particles (like clay and silt) from sand grains.
  • Wet screening and classification in a silica sand washing and beneficiation circuit help remove fine clay.
• Magnetic Separation:
  • This method removes magnetic minerals. Iron minerals like magnetite, hematite, and limonite are often magnetic.
  • Dry magnetic separators remove strongly magnetic particles from dry sand.
  • Wet magnetic separators are used for sand slurry. They are better for finer particles.
  • High-intensity magnetic separators are essential for removing weakly magnetic iron minerals. Removing iron, even weak magnetic iron, is vital for high purity. This is often the most challenging impurity.
• Flotation:
  • This method removes non-magnetic minerals that cannot be removed by gravity or magnetic methods.
  • Examples are feldspar, mica, some heavy minerals, and some iron oxides (like hematite that is non-magnetic).
  • It uses flotation reagents. These reagents attach to the surface of target minerals. Air bubbles lift these minerals to the surface foam in flotation machines.
  • Flotation complements magnetic separation. It targets specific impurities. Different reagents are used for different impurities. For example, fatty acids can float heavy minerals. Amine collectors can float feldspar and mica.
• Acid Leaching:
  • This is a chemical method. It is used for very high-purity requirements.
  • Dilute acid (like sulfuric acid or hydrochloric acid) dissolves iron oxides and other acid-soluble impurities from the sand grain surface.
  • Acid leaching is very effective for deep iron removal. But it is expensive. It needs careful handling of chemicals. Acid wastewater needs treatment. Concentration, temperature, and time must be controlled precisely.
• Gravity Separation:
  • Methods like spiral chutes or shaking tables can remove heavy minerals. Heavy minerals often contain iron or other undesirable elements.

Combining these methods in a specific sequence is how a silica sand processing plant achieves high purity. The best combination depends on the types and amounts of impurities in raw sand. Pilot tests help determine the most effective sequence and parameters.

Besides Washing And Beneficiation, Are Silica Sand Drying And Grading Important? How To Do Them?

After washing and beneficiation steps like scrubbing, magnetic separation, and flotation, the sand is clean. But it is wet. Its particle size is still mixed. So, drying and grading are very important final steps. They prepare the sand for specific market needs. These steps are part of a complete silica sand production line.

Drying and grading are also important:

• Drying:
  • Wet sand is heavy to transport. Transporting water costs money.
  • Many end-use industries need dry sand. For example, glass making, foundry casting, and frac sand need dry sand.
  • Dry sand is necessary for dry screening. Dry screening provides very precise size separation.
  • Drying uses a lot of energy. This adds to operating cost. Efficient drying reduces cost.
• Grading (Sizing):
  • Different applications need specific particle size ranges. Precise particle size control is crucial for application performance.
  • Glass sand needs certain size distribution. Frac sand has very tight specifications for size and uniformity. Foundry sand needs specific sizing for mold permeability.
  • Grading divides the sand into multiple saleable products. Each size fraction might have a different value.

How to dry and grinding:

• Drying Methods:
  • Dewatering: First, remove as much water as possible before drying. This reduces the energy needed for drying. Equipment like thickeners, hydrocyclones, and vacuum filters are used. Dewatering is necessary to lower moisture before thermal drying.
  • Thermal Drying: Wet sand goes into a dryer heated by hot air or gases.
    • Rotary dryers and sand dryers are common. Sand tumbles inside a rotating cylinder. Hot air passes through.
    • Fluidized bed dryers are more efficient for fine sand. Hot air is blown up through a bed of sand, making it behave like a fluid.
    • Consider energy sources and dryer efficiency to manage the cost.
    • Solar drying is energy-saving and eco-friendly. But it needs large space and depends on weather. It is not suitable for high throughput.
• Grading Methods:
  • Screening: The most common method for dry sand. Dry sand passes over vibrating screens with different mesh sizes. Sand is separated into different size fractions. Multi-deck screens separate into multiple sizes in one pass.
  • Air Classification: Used for separating very fine particles (dust) from coarser sand. Air current carries lighter fines upwards.
  • Wet Classification: Can be used, but dry screening is generally preferred for precise grading of dried sand. Spiral classifiers or hydrocyclones are mainly used earlier in the wet process to remove slimes or make broad size splits.

After drying and grading, the high-purity silica sand products of various sizes are stored separately. This completes the silica sand production line. Proper drying and grading ensure the final product meets strict market specifications and is ready for sale or use.

Building A High-Purity Sand Plant: How Much Investment And Operating Cost?

Building a silica sand processing plant is a significant investment. The costs vary greatly. They depend on many factors. These factors include the required capacity, the complexity of the processing flow, the required final product purity, and the location. Estimating costs needs careful calculation. It involves both initial investment and ongoing operating expenses.

Here are factors affecting cost:

Investment Cost:

Cost Item	Description
Equipment Costs	Purchase costs for all processing machinery: crushers, washers, screens, classifiers, magnetic separators, flotation machines, dewatering equipment, dryers, conveyors, pumps, electrical systems, control systems, dust collection, etc. Complexity and quantity depend on raw sand and required purity.
Civil Engineering and Installation	Costs for site preparation, equipment foundations, plant buildings, substations, water supply & drainage systems, and installation labor for all equipment.
Land Acquisition	Cost to purchase or lease land for the plant site and storage areas.
Permits and Licenses	Fees for obtaining necessary environmental permits, construction permits, mining licenses (if applicable), and other regulatory approvals.
Design and Engineering Fees	Costs for process design, plant layout, equipment selection consultation, detailed engineering, and project management services.
Infrastructure	Costs for constructing or upgrading access roads, power lines connection, water supply pipes, etc., necessary for the plant.
Working Capital	Funds required for initial raw material inventory, spare parts stock, initial wages, utility deposits, and other startup expenses.
Overall Solution	Costs associated with purchasing an integrated mineral processing solution or using an EPC (Engineering, Procurement, Construction) contractor.

Operating Cost:

Cost Item	Description
Power Consumption	Electricity costs for running equipment motors (crushers, pumps, conveyors, dryers, magnetic separators, etc.). Often the highest operating cost.
Water Consumption	Costs for water used in washing, scrubbing, classification, flotation, and dust suppression. Includes water fees or the cost of running a water recycling system.
Wear Parts	Costs for regularly replacing parts subject to wear due to the abrasive nature of silica sand (e.g., pump impellers, crusher liners, screens, dryer liners, conveyor belts). This is a significant ongoing cost.
Chemical Reagents	Costs for chemicals used in processes like flotation or acid leaching, if required for purification. Flotation reagents are a common operating expense.
Labor Costs	Wages, salaries, and benefits for plant operators, maintenance staff, engineers, administrative personnel, and management.
Maintenance and Repair	Costs for routine maintenance, lubrication, inspections, part replacements, and unexpected repairs of equipment.
Environmental Costs	Costs for operating and maintaining dust collection systems and water treatment systems (including wastewater treatment and recycling). Includes costs for tailings disposal and environmental monitoring.
Other Costs	Includes items such as insurance, taxes (e.g., resource tax, consumption tax), administrative overheads, security, outbound transportation costs, land lease fees (if applicable), and research & development (if any).

Estimating these costs needs a detailed engineering study. It is best to get quotes from silica sand equipment suppliers. Also, get estimates for civil work and installation from local contractors. Experienced suppliers can help understand typical costs for a specific project size and required product quality. They can compare options. This helps build a realistic budget and assess the project’s financial viability.

Frequently Asked Questions

• Question 1: What Is The Most Difficult Impurity To Remove From Silica Sand?
  Iron oxide (Fe2O3) is often the most difficult. It can exist in different forms. Some forms are magnetic and can be removed by magnetic separation. But some iron oxides are non-magnetic. They might be fine particles stuck to sand grains. Or they might be part of other minerals like feldspar. Removing these needs scrubbing, flotation, or even acid leaching. Iron removal is key for high purity.
• Question 2: How Can Particles Shape Be Improved For Uses Like Frac Sand?
  Natural sand usually has a good shape. If raw sand needs shape improvement, it might not be the right material for uses like frac sand. Processing focuses on cleaning and sizing existing particles. It does not usually change the particle shape significantly, except maybe breaking off sharp edges during scrubbing. Shape is mostly a property of the raw material deposit.
• Question 3: Is Acid Leaching Necessary For All High-Purity Silica Sand?
  No, acid leaching is not always necessary. It depends on the required purity level. For glass sand or general high-purity uses (like 98-99% SiO2), effective scrubbing, magnetic separation, and sometimes flotation might be enough. Acid leaching is typically needed for very high purity applications (like 99.5%+ SiO2) or if iron is very difficult to remove otherwise.
• Question 4: How Does Clay Content Affect Processing?
  High clay content makes washing and separation difficult. Clay coats sand grains. It can clog screens and hydrocyclones. It increases water consumption and wastewater treatment needs. Sand with high clay needs intensive scrubbing (Spiral classifiers can help wash) and multiple washing/classification stages.
• Question 5: Can Silica Sand Be Processed Without Using Water (Dry Processing)?
  Yes, some dry processing methods exist. Examples are dry screening and dry magnetic separation. But removing fine clay and surface coatings is very difficult without water. Dry processing is usually only suitable for raw sand with low impurity levels and low requirements for final purity. Wet processing is standard for producing high-purity silica sand.

Summary and Suggestions

Building a silica sand processing plant requires careful planning. Understand raw material and target product needs. The goal is to transform ordinary sand into high-purity silica sand with higher value. A complete silica sand production line includes multiple stages: feeding, scrubbing, screening, classification, magnetic separation, flotation, dewatering, and drying.

Key steps in processing include:

• Removing clay and surface impurities through washing and scrubbing.
• Removing magnetic minerals, especially iron, using magnetic separators.
• Removing non-magnetic impurities like feldspar and mica using flotation machines.
• Precisely controlling particle size through screening and classification.
• Reducing moisture through dewatering and drying. Ensuring consistent quality through regular testing.

The investment and operating costs depend on project scale and required purity. Equipment costs are the largest investment. Power and wear parts are major operating expenses.
Choosing the right silica sand equipment and process flow is critical. Consulting with experienced professionals is highly recommended. They can analyze raw sand, design a customized flow, recommend suitable silica sand equipment, and help estimate costs. This ensures a silica sand processing plant project is successful and profitable.

If planning a silica sand processing project, consider talking to experts in silica sand beneficiation and silica sand equipment.

About ZONEDING

ZONEDING MACHINE is a Chinese manufacturer of mining machinery equipment. The company focuses on B2B business. It manufactures and sells mining equipment products. Since its founding in 2004, the company has gained rich industry experience. It offers a variety of beneficiation equipment and silica sand equipment. This includes scrubbers, magnetic separators, flotation machines, screens, dryers, and more. ZONEDING can design and provide complete silica sand processing plant solutions. The company has a team of professional engineers. They provide full-process service. This includes scheme design, equipment manufacturing, installation and commissioning, personnel training, and after-sales maintenance. ZONEDING products have been exported to over 120 countries. The company understands the challenges faced in silica sand purification. It aims to provide efficient, reliable, and environmentally friendly solutions for producing high-purity silica sand. ZONEDING wants to be a reliable partner for silica sand production line needs.

If planning to build a silica sand processing plant or upgrade an existing one, please contact ZONEDING MACHINE. The company can provide professional silica sand equipment and services.

Last Updated: March 2025