Landing Page Content: China Sand Gravel Mining ODM Manufacturer

1. PainPoint Driven Opening

Are your sand and gravel processing lines plagued by inconsistent aggregate gradation, leading to rejected loads and contract penalties? Do you face 1218% material loss during crushing and screening due to outdated equipment design? Is your current setup consuming 30% more power per ton than industry benchmarks, directly eroding your margin on highvolume, lowmargin product?

For plant managers and engineering contractors, the operational reality of sand and gravel mining is defined by three factors: throughput reliability, wear part longevity, and final product quality. When your crusher liners wear out after 400 hours instead of 800, or your screening efficiency drops below 85%, you are not just losing material—you are losing bid competitiveness.

How can you source a processing system that delivers consistent 05mm manufactured sand with a FM (Fineness Modulus) deviation of less than 0.2, while reducing your total cost of ownership by 1520%? The answer lies in selecting an ODM manufacturer that designs equipment specifically for the abrasive, highvolume demands of sand and gravel mining.

2. Product Overview

This equipment line is a Modular Sand & Gravel Washing and Classification System, designed for dry or wet processing of alluvial and crushed aggregates. The operational workflow is engineered for continuous, highcapacity production:

1. Feed & Scalping: Runofmine material (0300mm) enters a vibrating grizzly feeder, removing 50mm fines and directing oversize to the primary jaw crusher.
2. Primary Crushing: A heavyduty jaw crusher reduces material to 150mm, with a hydraulic wedge adjustment for closedside setting (CSS) control.
3. Washing & Scrubbing: Material enters a log washer or rotary scrubber (depending on clay content) for attrition scrubbing at 200300 RPM, removing deleterious materials and coating from aggregate surfaces.
4. Screening & Dewatering: A multideck horizontal screen separates material into 34 fractions (e.g., 05mm, 512mm, 1225mm). The 5mm slurry is fed to a dewatering screen and hydrocyclone for sand recovery.
5. Stockpiling: Conveyors with variable speed drives stack finished products, minimizing segregation and maintaining stockpile moisture content below 8%.

Application Scope: Ideal for riverbed mining, pit run gravel, and hard rock quarries producing concrete aggregates and asphalt base course.
Limitations: Not recommended for materials with high moisture content (>15%) without predrying, or for processing highly abrasive ores (Mohs >7) without specialized wear liners.

3. Core Features

HeavyDuty Rotor Design | Technical Basis: Finite Element Analysis (FEA) optimized rotor geometry | Operational Benefit: Reduces vibration amplitude by 40% at full load, extending bearing life | ROI Impact: Lower maintenance frequency, saving $12,000 annually in bearing replacement costs

Hydrocyclone Sand Recovery Unit | Technical Basis: 10degree cone angle with adjustable apex diameter | Operational Benefit: Recovers 95% of +75micron sand particles from slurry | ROI Impact: Reduces pond cleaning frequency by 60%, reclaiming 810% more saleable product

Polyurethane Modular Screen Media | Technical Basis: Highwear polyurethane with 40 Shore D hardness | Operational Benefit: 3x longer service life vs. woven wire mesh in wet screening applications | ROI Impact: Eliminates 4 screen changeouts per year, saving 32 hours of downtime

Variable Frequency Drive (VFD) on Main Conveyor | Technical Basis: Closedloop torque control | Operational Benefit: Reduces energy consumption by 18% during partial load conditions | ROI Impact: Annual electricity savings of $8,500 for a 200 TPH plant

Integrated PLC Control System | Technical Basis: AllenBradley CompactLogix with remote I/O | Operational Benefit: Realtime monitoring of bearing temperature, motor amps, and belt speed | ROI Impact: Prevents catastrophic failure, reducing unplanned downtime by 25%

Hydraulic CSS Adjustment on Jaw Crusher | Technical Basis: Dual hydraulic cylinders with accumulator | Operational Benefit: Allows CSS change in 5 minutes vs. 45 minutes for mechanical adjustment | ROI Impact: Increases operational uptime by 3% per shift

Modular Frame Construction | Technical Basis: Bolted and pinned connections, no welding on site | Operational Benefit: Reduces installation time by 40% and allows easy relocation | ROI Impact: Saves $15,000 in site preparation and crane costs

4. Competitive Advantages

| Performance Metric | Industry Standard (Typical Chinese OEM) | Our Sand & Gravel Solution | Advantage (% Improvement) |
| : | : | : | : |
| Sand Recovery Rate (75 micron) | 8085% | 95% | +1218% |
| Screen Efficiency (wet) | 88% | 96% | +9% |
| Crusher Liner Life (Mn18Cr2) | 450 hours | 720 hours | +60% |
| Power Consumption (kWh/ton) | 1.8 kWh/t | 1.4 kWh/t | 22% |
| Mean Time Between Failures (MTBF) | 1,200 hours | 2,100 hours | +75% |
| Installation Time (200 TPH plant) | 14 days | 8 days | 43% |
| Final Product Moisture Content | 1215% | 79% | 40% |

5. Technical Specifications

| Parameter | Specification |
| : | : |
| Model | SGM200 (Standard Capacity) |
| Total Capacity | 200 TPH (tons per hour) |
| Max Feed Size | 300 mm |
| Sand Fraction Output | 05 mm (adjustable via screen deck) |
| Power Requirement | 380V / 50Hz / 3Phase (customizable to 460V/60Hz) |
| Installed Power | 320 kW (including crusher, screens, pumps) |
| Water Consumption | 80120 m³/hour (recycled via settling pond) |
| Main Crusher | Jaw Crusher, 900x1200mm, CSS 75150mm |
| Washing Unit | Log Washer, dual shaft, 9m length |
| Screen Decks | 2x 2.4m x 6.0m horizontal tripledeck |
| Physical Dimensions (LxWxH) | 45m x 12m x 8m (modular layout) |
| Total Weight | 85 tons (excluding conveyors) |
| Operating Temperature Range | 10°C to 45°C |
| Noise Level (at 1m) | <85 dB(A) |

6. Application Scenarios

Riverbed Sand & Gravel Processing | Challenge: A contractor in Sichuan, China, was losing 15% of fine sand to the settling pond due to inefficient hydrocyclone design. The existing system produced sand with a high FM (3.2), failing concrete spec. | Solution: Installed our SGM200 system with a 10degree hydrocyclone and dewatering screen. | Results: Sand recovery increased to 95%. FM stabilized at 2.8 ±0.1. The client reduced pond cleaning from monthly to quarterly, saving $18,000 annually in disposal costs.

Hard Rock Quarry (Granite) for Asphalt | Challenge: A quarry in Fujian needed to produce 05mm manufactured sand for asphalt mix, but their vertical shaft impact (VSI) crusher produced excessive fines (75 micron) at 18%, exceeding the 10% limit. | Solution: Integrated our log washer and highfrequency screen after the VSI to scrub and classify the material. | Results: Fines content reduced to 8%. The client achieved a 12% increase in asphalt mix yield per ton of feed, directly improving contract profitability by $2.50/ton.

Alluvial Gold & Gravel CoProcessing | Challenge: A mining operation in Indonesia needed to separate goldbearing fines from 0100mm gravel without losing coarse aggregate value. | Solution: Deployed our modular system with a trommel scrubber for clay breakdown and a jig circuit for gold recovery, integrated with the gravel screening line. | Results: Recovered 92% of gold in the 2mm fraction while producing clean 2040mm aggregate for local construction. The combined operation reduced processing cost per ton by 30% compared to separate lines.

7. Commercial Considerations

Equipment Pricing Tiers (FOB Shanghai Port, China):

• Standard SGM200 System: $285,000 $320,000 (includes crusher, log washer, screens, hydrocyclone, control panel, 12month warranty)
• Premium SGM200 System: $365,000 $410,000 (adds VFDs on all motors, polyurethane screen media, hydraulic CSS, remote monitoring package)
• Customized System: Pricing based on specific capacity (100500 TPH), material type, and site layout. Typically 1525% premium over standard.



Optional Features:

• Wear Package: Additional set of crusher liners, screen panels, and pump impellers (+$18,000)
• Automation Upgrade: SCADA system with 3D plant visualization and predictive maintenance alerts (+$22,000)
• Water Treatment: Thickener and filter press for zeroliquid discharge compliance (+$45,000)

Service Packages:

• Basic (Year 1): Remote technical support, spare parts catalog, 2day onsite commissioning support ($8,500)
• Advanced (Annual): Quarterly inspection, 48hour emergency parts dispatch, 1week onsite training for 4 operators ($22,000/year)
• Full Turnkey: Includes civil engineering design, foundation work, electrical installation, and 6month performance guarantee ($95,000)

Financing Options:

• 30% Down / 70% Balance on Shipment: Standard terms
• LeasetoOwn: 36month term, 8% interest rate (subject to credit approval)
• PerformanceBased Payment: 10% of equipment cost deferred until throughput guarantee of 180 TPH is met for 30 consecutive days

8. FAQ

Q: Can this system handle material with high clay content (20%+)?
A: Yes, but you will need the optional heavyduty log washer with 300 RPM shaft speed and extended 12m tub. Standard log washers are effective up to 10% clay. For higher clay, we recommend a rotary scrubber prestage.

Q: What is the typical lead time from order to shipment?
A: For standard SGM200 systems, lead time is 810 weeks. Customized systems require 1418 weeks, including engineering review and fabrication.

Q: How does your ODM process differ from buying from a standard OEM?
A: As an ODM, we can modify the equipment design to your specific material characteristics (e.g., adjusting crusher chamber profile for your rock type, changing screen deck angles for your feed moisture). Standard OEMs offer fixed designs. We also provide your branding on the equipment if required.

Q: What is the expected annual maintenance cost as a percentage of equipment value?
A: For a 200 TPH plant processing typical river gravel, budget 46% of the equipment value annually for wear parts and routine maintenance. For abrasive materials like granite, budget 79%.

Q: Do you provide performance guarantees in the contract?
A: Yes. We guarantee throughput (e.g., 200 TPH ±5%), sand recovery rate (95% for +75 micron), and final product moisture content (below 10%). These are verified during the 30day commissioning period.

Q: What is the warranty coverage on the main crusher frame?
A: The main frame and base structure carry a 5year warranty against manufacturing defects. Wear parts (liners, screens, belts) are covered for 12 months or 2,000 operating hours, whichever comes first.

Q: Can the system be integrated with an existing plant control system?
A: Yes. Our PLC uses standard Modbus TCP/IP protocol. We provide a communication gateway and API documentation for integration with AllenBradley, Siemens, or Schneider systems. Integration typically takes 23 days on site.