High-Efficiency Energy-Saving Automatic Resin-Coated Sand Production Equipment - Customizable
Product Details
| Customization: | Available |
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| Type: | Clay Wet Sand |
| Casting Method: | Thermal Gravity Casting |
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Basic Info.
- Model NO.
- FM300
- Sand Core Type
- Oil Sand Core
- Application
- Machinery Parts
- Machining
- CNC Machining
- Material
- Steel
- Surface Treatment
- Polishing
- Surface Roughness
- Ra0.05
- Standard
- GB
- Certification
- CE, RoHS, ISO 9001:2000, ISO 9001:2008
- Capacity
- Expandable
- Mixing Time
- 60-90s
- Resin Content
- Adjustable
- Dimensions
- Customized by Model
- Transport Package
- No
- Specification
- Customizable
- Trademark
- dingli
- Origin
- China
- HS Code
- 8474802000
- Production Capacity
- 50
Packaging & Delivery
- Package Size
- 589.00cm * 235.00cm * 239.00cm
- Package Gross Weight
- 24000.000kg
Product Description
Product Description
Product Description of Coated Sand Production Line
The Coated Sand Production Line is a fully automated system integrating pre-heating, mixing, cooling, screening, storage, and conveying, specifically designed for producing high-quality thermosetting phenolic resin-coated sand. It is widely used in the manufacturing of automotive components, engine blocks, exhaust manifolds, turbocharger housings, valves, pumps, and precision castings. Utilizing a "counter-flow heating + precise metering + high-speed mixing + rapid cooling" process, the line ensures uniform resin coating on sand particles, resulting in high-strength, low-gas-emission, and highly flowable coated sand—meeting the stringent requirements of shell molding machines and core shooters.
With a capacity range of 1–20 tons/hour, the line can be flexibly configured for single-shift, double-shift, or continuous operation, supporting fully automated, unattended operation. It seamlessly integrates with core shooters, molding lines, and central control systems (MES) to build an intelligent foundry sand center.
Process Flow
1. Raw Material Preparation & Conveying
Silica sand (washed/calcined) is conveyed via bucket elevator or pneumatic system to a dry sand silo, ensuring stable temperature and moisture ≤0.2%.
Liquid phenolic resin, hardener (hexamine), and additives (calcium stearate, lubricants) are stored in temperature-controlled tanks and fed by precision metering pumps.
Silica sand (washed/calcined) is conveyed via bucket elevator or pneumatic system to a dry sand silo, ensuring stable temperature and moisture ≤0.2%.
Liquid phenolic resin, hardener (hexamine), and additives (calcium stearate, lubricants) are stored in temperature-controlled tanks and fed by precision metering pumps.
2. Sand Pre-heating System
Cold sand enters a counter-flow hot-air heating drum, where it contacts high-temperature air (250–300°C) in counter-current flow, raising sand temperature to 120–140°C within 8–12 minutes—ensuring uniform heating without local overheating.
Hot air is recycled for energy efficiency.
3. Mixing System (Core Process)
Pre-heated sand, resin, and hardener are fed into a high-speed twin-shaft or planetary mixer, where resin coating and initial condensation occur within 60–90 seconds.
Mixing homogeneity ≥98%, ensuring uniform resin distribution, high strength, and excellent flowability.
4. Cooling & Screening System
Hot coated sand is cooled to ≤50°C in a twin-disk or fluidized bed cooler to prevent premature curing.
A vibratory screen removes lumps and impurities, ensuring free-flowing sand.
5.Finished Product Storage & Conveying
Qualified coated sand is stored in a finished product silo, then conveyed via screw conveyor or pneumatic system to usage points (e.g., core shooter hoppers).
Supports multi-route distribution for zoned feeding.
Key Features
Advanced Process, Superior Sand Quality
Counter-flow heating + high-speed mixing ensures uniform coating. Tensile strength ≥2.5 MPa, gas evolution ≤18 ml/g, fluidity ≥70 mm—meets high-end casting requirements.
Counter-flow heating + high-speed mixing ensures uniform coating. Tensile strength ≥2.5 MPa, gas evolution ≤18 ml/g, fluidity ≥70 mm—meets high-end casting requirements.
Fully Automated, Precise & Stable
PLC + HMI + multi-stage feedback control enables automatic ratio adjustment (accuracy ±1%), recipe storage, remote monitoring, and self-diagnosis.
Energy-Saving & Eco-Friendly
Heat recovery saves >30% energy; enclosed design with pulse cartridge filter (emission ≤5 mg/m³), noise ≤80 dB(A)—environmentally compliant.
Modular Design, Easy Maintenance
Independent modules; wear-resistant, quick-change components (blades, screens, bearings)—long service life, short downtime.
Safe & Intelligent Protection
Features temperature interlock, overload protection, emergency stop, explosion-proof motors (optional)—ensures safe operation in high-temperature, flammable environments.
Traceable Data, Smart Factory Ready
Optional MES interface, batch management, energy monitoring—enables full data traceability and digital transformation.
Main Technical Specifications | |
Parameter | Specification |
Model Series | FM-1000 / FM-2000 / FM-3000 / FM-5000 |
Capacity | Expandable |
Sand Type | 40/70 to 70/140 mesh silica sand |
Heating Temp. | 120–140°C |
Mixing Time | 60–90s |
Outlet Temp. | ≤50°C |
Resin Content | Adjustable |
Control System | PLC + 10" HMI + Optional MES/SCADA |
Total Power | Depending on configuration |
Weight | 88–65 tons |
Dimensions | Customized by model |
Protection Rating | IP54/IP65 for critical parts |
Typical Applications
Coated sand production for automotive intake/exhaust manifolds, turbocharger housings
Shell sand manufacturing for precision valves, hydraulic components
Sand for complex thin-wall castings in aerospace and marine industries
Integrated with shell machines and core shooters
Core equipment for centralized sand supply systems in foundries
Shell sand manufacturing for precision valves, hydraulic components
Sand for complex thin-wall castings in aerospace and marine industries
Integrated with shell machines and core shooters
Core equipment for centralized sand supply systems in foundries
Company Profile
Qingdao Dingli Machinery Co., Ltd.
Qingdao Dingli Machinery Co., Ltd. is a company specializing in the production of casting machinery equipment. It mainly manufactures equipment for casting clay sand, resin sand, coated sand, wet sand drying, lost foam casting, sodium silicate sand, etc. It can undertake various turnkey projects, including the design, manufacturing, installation and commissioning of mechanical sand processing. Our factory has strong technical strength and advanced processing equipment. We have long-term and close technical cooperation with many senior experts and scholars from domestic universities and research institutions. We can provide users with high-performance, reliable products and satisfactory services.
Our company adheres to the principles of promoting enterprise development through technology, prioritizing quality, continuous improvement and customer satisfaction. We are willing to sincerely cooperate with friends from all walks of life to achieve common prosperity.
Our company mainly undertakes the following projects:
20-180t/h mechanized clay sand processing production line and single machine equipment turnkey project.
Annual production of 1000 to 20,000 tons of consolidated resin sand casting mechanized production line and single machine equipment turnkey project.
Annual production of 3,000 to 10,000 tons of hot processing coated sand complete equipment and single machine equipment turnkey project.
Annual production of 3,000 to 7,000 tons of hot coating sand regeneration complete equipment and single machine equipment turnkey project.
5-15t/h sodium silicate mechanical production line and single machine equipment turnkey project.
5-30t/h three-stage sand drying equipment and single machine equipment turnkey project.
5-40t/h lost foam casting complete equipment and single machine equipment turnkey project and other types of shot blasting cleaning equipment, lifting equipment, conveying equipment, cooling equipment, magnetic separation equipment, environmental protection dust removal equipment.
Welcome to contact us~
Our company adheres to the principles of promoting enterprise development through technology, prioritizing quality, continuous improvement and customer satisfaction. We are willing to sincerely cooperate with friends from all walks of life to achieve common prosperity.
Our company mainly undertakes the following projects:
20-180t/h mechanized clay sand processing production line and single machine equipment turnkey project.
Annual production of 1000 to 20,000 tons of consolidated resin sand casting mechanized production line and single machine equipment turnkey project.
Annual production of 3,000 to 10,000 tons of hot processing coated sand complete equipment and single machine equipment turnkey project.
Annual production of 3,000 to 7,000 tons of hot coating sand regeneration complete equipment and single machine equipment turnkey project.
5-15t/h sodium silicate mechanical production line and single machine equipment turnkey project.
5-30t/h three-stage sand drying equipment and single machine equipment turnkey project.
5-40t/h lost foam casting complete equipment and single machine equipment turnkey project and other types of shot blasting cleaning equipment, lifting equipment, conveying equipment, cooling equipment, magnetic separation equipment, environmental protection dust removal equipment.
Welcome to contact us~
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