Environmental Protection Clay Sand Recycling Equipment

The Clay Sand Reclamation Line is a highly automated spent sand processing system designed to reclaim used green sand—high-temperature, lumpy, and contaminated—through crushing, screening, cooling, and thermal/mechanical reclamation. It produces clean, temperature-stable, high-performance reclaimed sand for efficient reuse. Widely used in automotive, engine, heavy machinery, valves, pumps, and machine tool foundries, this system is a key component in building green and intelligent foundry operations.

Compared to traditional disposal or inefficient reclamation methods, this line achieves over 90% sand reuse rate, significantly reducing raw sand and bentonite consumption, lowering waste disposal costs, improving sand consistency, and minimizing casting surface defects—helping enterprises achieve cost reduction, quality improvement, and environmental compliance.

With a modular design and capacity range of 5–60 tons/hour, the system can be flexibly configured based on customer production volume, plant layout, and process needs. It seamlessly integrates with shakeout systems, mullers, and molding lines to form a closed-loop automated sand handling system.

1. Spent Sand Reception & Conveying
Hot spent sand from the shakeout is conveyed via high-temperature resistant vibratory conveyor or bucket elevator to the first stage.
A buffer hopper ensures continuous and stable feeding.

High Reclamation Rate, Cost Savings
Reuse rate ≥90%, replacing 60–80% new sand—significantly reducing bentonite and raw sand costs.

Fully Automated & Intelligent Operation
PLC + HMI + Remote Monitoring enables automatic control, parameter setting, fault alarms, data logging, and energy analysis.

Energy-Saving & Eco-Friendly
Enclosed structure with pulse cartridge dust collector (emission ≤10 mg/m³), noise ≤85 dB(A); waste heat recovery in thermal reclaimer saves >30% energy.

Modular Design, Easy Maintenance
Independent modules; quick-change components (screens, rollers, bearings)—short maintenance time, low downtime.

Safe & User-Friendly
Features emergency stop, overload protection, interlocked doors, dust monitoring—ergonomic design for operator safety.

Sand reclamation for automotive engine blocks, heads, transmission cases

Mass production of large machine tool castings (beds, columns)

Spent sand recycling for valve, pump, and fitting foundries

Retrofit projects for outdated sand systems

Integrated with DISA, KW, Hitachi vertical molding lines

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.
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