IPDB › China Industry › Manufacturing & Processing Machinery › Casting & Forging
Medium Automatic Film Covering Sand Production Line1
Casting Forging, FM300 Coated Sand Production Line, FM200 Coated Sand Equipment
Qingdao Ding Li Machinery Co., Ltd.
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Product DescriptionProduct DescriptionProduct Description of Coated Sand Production LineThe 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 Flow1. Raw Material Preparation & ConveyingSilica 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 SystemCold 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 SystemHot 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 & ConveyingQualified 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 FeaturesAdvanced Process, Superior Sand QualityCounter-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 & StablePLC + HMI + multi-stage feedback control enables automatic ratio adjustment (accuracy ±1%), recipe storage, remote monitoring, and self-diagnosis.Energy-Saving & Eco-FriendlyHeat recovery saves >30% energy; enclosed design with pulse cartridge filter (emission ≤5 mg/m3), noise ≤80 dB(A)—environmentally compliant.Modular Design, Easy MaintenanceIndependent modules; wear-resistant, quick-change components (blades, screens, bearings)—long service life, short downtime.Safe & Intelligent ProtectionFeatures temperature interlock, overload protection, emergency stop, explosion-proof motors (optional)—ensures safe operation in high-temperature, flammable environments.Traceable Data, Smart Factory ReadyOptional MES interface, batch management, energy monitoring—enables full data traceability and digital transformation.Main Technical SpecificationsParameterSpecificationModel SeriesFM-1000 / FM-2000 / FM-3000 / FM-5000CapacityExpandableSand Type40/70 to 70/140 mesh silica sandHeating Temp.120–140°CMixing Time60–90sOutlet Temp.≤50°CResin ContentAdjustableControl SystemPLC + 10" HMI + Optional MES/SCADATotal PowerDepending on configurationWeight88–65 tonsDimensionsCustomized by modelProtection RatingIP54/IP65 for critical partsTypical ApplicationsCoated sand production for automotive intake/exhaust manifolds, turbocharger housingsShell sand manufacturing for precision valves, hydraulic componentsSand for complex thin-wall castings in aerospace and marine industriesIntegrated with shell machines and core shootersCore equipment for centralized sand supply systems in foundriesCompany ProfileQingdao 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~
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