VU Aggregate Optimization: Manufactured-Sand Grading

The VU Aggregate Optimization System is a globally leading dry sand making system independently developed and produced. It adopts a highly intensive tower-style fully enclosed layout and can be used for sand making from raw materials such as limestone, river pebbles, granite, and crushed stone, including large-volume but low-usage materials like "melon-seed stones." It integrates efficient sand making, particle shape optimization, stone powder control, gradation adjustment, moisture content control, and environmental treatment. It not only significantly improves production efficiency but also comprehensively enhances the performance indicators of manufactured sand, such as particle shape, gradation, and powder content, making the performance of manufactured sand comparable to natural sand, thereby creating new opportunities and value for the sand, cement, and concrete industry chain. Its working principle is as follows: raw materials with a moisture content ≤2% and particle size ≤15mm (including cost-effective and easily obtainable materials such as stone chips or melon-seed stones), after the rational and efficient processing by the VU Aggregate Optimization System, will produce finished sand with reasonable gradation, rounded particle shape, and controllable powder content, as well as dry, clean, high-value stone powder that can be uniformly recycled (applicable range depends on raw materials). Why choose the VU Aggregate Optimization System? First, low cost: by comprehensively innovating crushing and grinding technology, enhancing individual equipment performance, and ensuring a reasonable connection of processes, cost-effective tailings and waste materials such as "stone chips" and "melon-seed chips" can be used as raw materials for sand making. Second, high quality: raw materials undergo three optimization processes—the high-frequency "stone-on-stone" impact shaping of the VU-type impact crusher, high-speed grinding, and the waterfall brushing of the particle optimization machine. They are fully crushed and polished, resulting in full, smooth, and evenly sized sand grains. The finished sand has reasonable gradation, particle shape, and powder content, with fineness modulus between 2.5-3.2 and powder content adjustable between 3-15%. Finished sand quality is comparable to natural sand. Third, high efficiency: the integrated screening machine—mold-controlled screen, combines vibration screening, material separation, and air classification, providing high screening efficiency, while allowing real-time adjustment and control of finished sand gradation and powder content without replacing hardware such as screens. Fourth, high environmental protection: the equipment features a fully enclosed structure, preventing dust escape, uses a dry process, requires no washing with water, and does not produce sewage, sludge, or dust problems. Fifth, highly automated with a supporting central control system, it can control and monitor the operation of all equipment online, quickly set and maintain optimal operating parameters, and ensure the stability of finished sand quality and production line capacity. The VU Aggregate Optimization System is mainly used in three scenarios: the extension of concrete mixing plant industries, the extension of cement group industries, and the quality and efficiency improvement of sand and gravel plants. The people who need the VU Aggregate Optimization System include: owners and operation teams of concrete mixing plants, project managers for cement group industrial extensions, sand and gravel plants and aggregate production enterprises, mining and building materials EPC contractors, sand and aggregate equipment distributors and stockists, and overseas building materials and mining project purchasers. When should one choose or replace the VU Aggregate Optimization System? When a mixing plant needs to produce its own machine-made sand to reduce raw material costs; when a cement group needs to extend its industrial chain and enter the aggregate and machine-made sand market; when a sand and gravel plant needs to improve quality and efficiency, using cheap stone chips and river pebble to produce high value-added machine-made sand; when traditional sand-making equipment produces finished sand with poor particle shape, unreasonable grading, and uncontrollable powder content, necessitating an upgrade; when environmental policies tighten, and traditional water-washed sand-making produces wastewater and sludge, requiring a dry fully enclosed process; when export projects require a tower-type fully enclosed dry sand-making system. How to choose the VU Aggregate Optimization System? Step one: determine raw material characteristics, confirm the type of raw material (limestone/river pebble/granite/stone chips/pebble) and moisture content (≤2%), and control the feed size within 0-15mm or 0-25mm; Step two: determine capacity requirements, and choose VU-100 (75-95t/h), VU-150 (110-135t/h), or VU-300 (220-270t/h) according to the needs of the mixing plant, cement group, or sand and gravel plant; Step three: confirm finished sand specifications, with fineness modulus 2.5-3.2, adjustable powder content 3-15%; Step four: confirm installed power and power supply conditions, VU-100 about 780kW, VU-150 about 920kW, VU-300 about 1960kW; Step five: confirm site conditions, VU-300 layout dimensions approximately L28000mm × W15000mm × H24000mm, requiring sufficient tower installation space; Step six: confirm environmental requirements, equipment adopts fully enclosed structure and dry process, no water washing needed, generates no wastewater, sludge, or dust; Step seven: confirm automation configuration, supporting central control system, capable of controlling and monitoring all equipment operation online; Step eight: confirm installation foundation, tower-type fully enclosed layout, requiring concrete foundation and steel structure support.

Model Example: `VU-300`, meaning VU Aggregate Optimization System, 300 is the model series, corresponding to raw material input of 270-300 t/h, output of 220-270 t/h, and installed power of about 1960 kW.

VU Aggregate Optimization System Model and Parameter Table

Model	Feed Size mm	Raw Material Input t/h	Output t/h	Stone Powder Content (Adjustable) %	Installed Power kW
VU-100	0–15	90–110	75–95	3–15	≈780
VU-150	0–25	135–150	110–135	3–15	≈920
VU-300	0–25	270–300	220–270	3–15	≈1960

General Technical Parameter Table

Parameter	Specification
Series	VU Aggregate Optimization System
Type	Tower-type Fully Enclosed Dry Sand Making System
Feed Size	0–15mm（VU-100）/ 0–25mm（VU-150、VU-300）
Raw Material Moisture	≤2%
Raw Material Input	90–300t/h
Finished Sand Output	75–270t/h
Finished Sand Fineness Modulus	2.5–3.2
Stone Powder Content	Adjustable from 3%–15%
Installed Power	780–1960kW
Process Flow	Dry process, no washing needed, does not produce sewage, sludge, or dust
Equipment Structure	Highly compact tower-type fully enclosed layout
Core Equipment	VU Impact Crusher (stone-on-stone impact shaping), High-Speed Grinding Machine, Granule Optimizer (Cascade Grinding Brush), Mold-Controlled Screen (vibrating screening + sorting + air selection)
Environmental Protection Configuration	Fully enclosed structure, dust does not escape
Automation	Equipped with central control system, online control and monitoring
Applicable Materials	Limestone, river pebble, granite, stone chips from stone crushing, Gua Mi Stone, etc.

Dimension Diagram and Key Dimensions: `[Image: /images/vu-aggregate-optimization-system-layout.webp]`

Key Dimensions Table

Model	Length mm	Width mm	Height mm	Layout Type
VU-300	28000	15000	24000	Tower-style fully enclosed layout

Material Table

Component	Standard Material	Optional Material	Description
Impact crusher rotor/discharge head	High-chromium cast iron	Tungsten carbide	High-frequency "stone-on-stone" impact shaping
Grinding mill roller/ring	High manganese steel/high-chromium cast iron	Ceramic composite	High-speed grinding
Granulator brush	Wear-resistant alloy	Ceramic	Waterfall mill brush
Mold-controlled screen mesh	Wear-resistant steel plate	Polyurethane	Vibrating screening + material distribution + air separation
Equipment frame/steel structure	Carbon steel	Hot-dip galvanized	Tower-style fully enclosed layout
Outer enclosure plate	Color steel plate	Stainless steel	No dust overflow
Central control system	Industrial-grade PLC	Custom	Online control and monitoring

Installation method: The VU Aggregate Optimization System adopts a tower-style fully enclosed layout, with the equipment installed as a whole on a steel structure tower. A concrete foundation is required at the base of the tower to support the weight of the equipment and operational loads. During installation, the horizontal and vertical alignment of each platform must be ensured, and the steel structure connection bolts must be tightened according to torque requirements; core equipment (VU impact crusher, high-speed grinder, particle optimizer, mold-controlled screen) should be installed in sequence according to the process flow from top to bottom or bottom to top, ensuring that the material chute connections between each piece of equipment are well sealed; the outer panels of the fully enclosed structure must be firmly installed to prevent dust leakage; the central control system must be installed in the control room, and cable connections must comply with regulations; after the installation is completed, no-load and load test runs must be conducted to confirm that all equipment operates normally without abnormal vibration or noise; before installation, it must be confirmed that the site has sufficient space (VU-300 requires approximately 28000mm in length × 15000mm in width × 24000mm in height) and sufficient power supply conditions (VU-300 installed power approximately 1960kW).

Application Scenario Table

Industry	Application	Recommended Model	Key Requirements
Concrete Mixing Station Industry Extension	Self-produced manufactured sand to reduce raw material costs	VU-100/VU-150/VU-300	Stable finished sand quality with reasonable grading
Cement Group Industry Extension	Enter the aggregate and manufactured sand market	VU-150/VU-300	Large-scale production and high automation
Sand and Gravel Plant Quality and Efficiency Improvement	Use stone chips and pebbles to produce high value-added manufactured sand	VU-100/VU-150/VU-300	Low-cost raw materials, high-quality products
Concrete Mixing Station	Manufactured sand to replace natural sand	VU-100/VU-150	Fineness modulus 2.5-3.2, adjustable powder content
Building Material Mines	Limestone, river pebble, granite sand production	VU-150/VU-300	Dry process, environmentally compliant

Note: The VU Aggregate Optimization System is suitable for raw materials with moisture content ≤2% and particle size ≤ 15mm or ≤25mm, which can be inexpensive and easily available tailings and waste materials such as stone chips and rice stones. The equipment uses a dry process that does not require washing and does not produce sewage, sludge, or dust. The system has a relatively high installed power (VU-300 about 1960kW), so it is necessary to confirm that on-site power supply conditions meet requirements.

Selection Notes (Comparison with Traditional Sand-Making Equipment): The core difference between the VU aggregate optimization system and traditional sand-making equipment (such as vertical shaft impact breaker + vibrating screen + sand washer with wet sand making lines) lies in:Sand quality, environmental performance, and automation level。 Traditional wet-process sand production lines produce finished sand with large fluctuations in fineness modulus, unreasonable gradation, uncontrollable powder content, and requires washing, generating large amounts of wastewater and sludge, which puts significant environmental pressure. The VU aggregate optimization system uses a tower-style fully enclosed dry process, using three optimization steps: VU impact breaking "stone-for-stone" impact shaping, high-speed grinding, and particle optimization machine waterfall grinding and brushing. This results in finished sand with rounded particle shape, stable gradation and fineness modulus between 2.5-3.2, and powder content adjustable freely between 3-15%. The quality rivals natural sand, and the fully enclosed structure does not produce dust overflow, no need for washing, and does not produce wastewater, sludge, or dust. When selecting finished sand, mixing plants, cement groups, and gravel yards with high quality requirements, strong environmental protection pressure, and those wishing to use cheap tailings for sand production are preferred.

## Technical FAQ

1. What is the VU aggregate optimization system?

The VU aggregate optimization system is the world's leading dry sand making system, featuring a highly intensive tower-style fully enclosed layout. It integrates efficient sand making, particle shape optimization, stone powder control, gradation adjustment, moisture content control, and environmentally friendly treatment. It can process inexpensive tailings such as stone chips and melon and rice stones into high-quality manufactured sand.

2. What are the feed particle size and output ranges for the VU aggregate optimization system?

Feed particle size 0-15mm (VU-100) or 0-25mm (VU-150, VU-300), raw material input 90-300t/h, finished sand output 75-270t/h.

3. What is the quality of finished sand in the VU aggregate optimization system?

The fineness modulus of the finished sand reaches between 2.5-3.2, and the powder content can be adjusted arbitrarily between 3-15%. The grading is reasonable, the particle shape is rounded, the sand grains are full, the surface is smooth, and the size is uniform. The quality can rival natural sand.

4. What is the working principle of the VU aggregate optimization system?

Raw materials with a moisture content ≤2% and particle size ≤15mm undergo three optimization processes in the VU-type impact crusher: high-frequency 'stone-on-stone' impact shaping, high-speed grinding, and waterfall mill brushing in the particle optimizer. They are fully crushed and polished to produce finished sand with reasonable grading, rounded particle shape, and controllable powder content, as well as dry, clean, high-value stone powder that can be uniformly recycled.

5. What raw materials are suitable for the VU aggregate optimization system?

It is suitable for sand-making from limestone, river pebbles, granite, and stone fragments produced during stone crushing; also for raw materials like ‘melon-seed stones’ that have high output but low usage. The moisture content of the raw materials must be ≤2%.

6. What are the performance characteristics of the VU aggregate optimization system?

Low cost (can use cheap tailings and waste for sand-making), high quality (finished sand rivals natural sand), high efficiency (the mold-controlled screen simultaneously provides vibration screening, material separation, and air classification), high environmental friendliness (fully enclosed structure, dry process, no water washing, no wastewater, sludge, or dust), and high automation (equipped with central control system for online monitoring and control).

7. What is the installed power of the VU aggregate optimization system?

VU-100 is about 780kW, VU-150 is about 920kW, and VU-300 is about 1960kW.

8. What are the dimensions of the VU aggregate optimization system?

Taking the VU-300 as an example, the layout dimensions are approximately 28,000mm (length) × 15,000mm (width) × 24,000mm (height), using a tower-style fully enclosed layout.

9. Does the VU aggregate optimization system require water washing?

No. The equipment uses a dry process, does not require water washing, and does not produce wastewater, sludge, or dust.

10. How does the VU aggregate optimization system control the stone powder content?

Through the mold-controlled screen, which simultaneously has vibration screening, material separation, and air classification functions, the grading composition and powder content of the finished sand can be adjusted and controlled at any time without the need to replace screens or other hardware.

11. What are the core devices of the VU aggregate optimization system?

VU-type impact crusher (stone-on-stone impact shaping), high-speed grinder, particle optimizer (cascade milling brush), mold-controlled screen (vibrating screening + material separation + air classification).

12. Which industries is the VU aggregate optimization system suitable for?

It is mainly suitable for three scenarios: concrete mixing plant industry extension, cement group industry extension, and quality and efficiency improvement in sand and gravel plants.

13. What is the level of automation of the VU aggregate optimization system?

Equipped with a central control system, it can control and monitor the operation of all equipment online, quickly set and maintain optimal operating parameters, ensuring the stability of finished sand quality and production line capacity.

14. How does the VU aggregate optimization system achieve environmentally friendly production?

The equipment adopts a fully enclosed structure to prevent dust from escaping; it uses a dry process, does not require water washing, and does not produce wastewater, sludge, or dust.

15. What scale of raw materials can the VU aggregate optimization system handle?

VU-100: 90-110 t/h of raw material input; VU-150: 135-150 t/h; VU-300: 270-300 t/h.

16. What can the finished sand from the VU aggregate optimization system be used for?

Finished sand can be used in concrete mixing plants as a substitute for natural sand, and can also be used in cement groups and sand and gravel plants to produce high-value manufactured sand, while stone powder can be uniformly recycled.

17. What are the requirements for the installation foundation of the VU aggregate optimization system?

It adopts a tower-style fully enclosed layout, requiring a concrete foundation and steel structure support. VU-300 requires an installation space of approximately 28,000 mm long × 15,000 mm wide × 24,000 mm high, with an installed power of about 1960 kW, so power supply conditions should be confirmed.

18. What is the difference between the VU aggregate optimization system and traditional sand-making equipment?

The traditional wet sand-making line produces finished sand with large fluctuations in fineness modulus, unreasonable grading, uncontrollable powder content, and requires washing with water, generating a large amount of wastewater and sludge; the VU Aggregate Optimization System uses a tower-type fully enclosed dry process, producing finished sand with rounded particle shape, reasonable grading, fineness modulus stable between 2.5-3.2, and adjustable powder content between 3-15%, with quality comparable to natural sand, without the need for washing, and without producing wastewater, sludge, or dust.

19. Can the VU Aggregate Optimization System be customized?

It can be customized in terms of model (VU-100/VU-150/VU-300), installed power, central control system configuration, material of outer enclosure panels, and material of wear-resistant parts, etc.

20. Can the fineness modulus of the VU Aggregate Optimization System be adjusted?

Yes, the fineness modulus of the finished sand can reach a range of 2.5-3.2, and the powder content can be freely adjusted between 3-15%. The grading composition and powder content of the finished sand can be adjusted and controlled at any time through control screens.

Technical FAQ

What should a complete mining-equipment RFQ include?

Include material, capacity, feed size, output size, layout, utilities, duty cycle, local standards and preferred delivery scope.

Can the final model be confirmed from a title alone?

No. The model must be checked against the process duty, drawings, utilities and site conditions before ordering.

Authoritative references

For standards and safety context, see ISO standards and the U.S. Mine Safety and Health Administration. Confirm the exact local requirements for your project.

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