Clay Sand Molding Reclamation Line
Green Sand (Clay Sand) Reclamation & Preparation Lines
Optimize Your Sand Cycle | Stabilize Casting Quality | Reduce Bentonite Waste
Our Clay Sand Reclamation Lines are engineered for high-volume green sand foundries. We provide a complete “closed-loop” solution—from shakeout and cooling to magnetic separation and fine-dust extraction. By precisely removing “dead clay” and metallic impurities while preserving active bentonite, our systems ensure your sand remains at peak molding performance, batch after batch.
Clay sand molding reclamation line is a system used in foundries to reclaim and recycle used green sand (a mixture of sand, bentonite clay, water, and sometimes additives) from molding processes. The goal is to clean and condition the sand so it can be reused for making new molds, reducing waste and costs while ensuring consistent mold quality.
Clay sand is a kind of moulding sand configured with clay as a binder. Realizing the mechanization of the sand reclamation treatment process is an integral part of casting production.
Technical Specifications
model | SWT-10 | SWT-20 | SWT-30 | SWT-40 |
productivity(t/h) | 10 | 20 | 30 | 40 |
Green Sand Molding Reclamation Line Composition
The green sand reclamation production line consists of a vibrating conveyor, casting conveyor, belt conveyor, suspension magnetic separator, elevator fine hexagonal screen, sand storage, two-way belt conveyor, boiling cooling equipment, elevator, sand reclaimer, belt conveyor, elevator, sand discharger, Belt conveyor, sand storage, disc feeder, belt conveyor, elevator, belt conveyor, exhaust respirator, auxiliary hopper, two-way feeder, screw feeder, auxiliary electronic scale sand mixer, belt conveyor, round disc feeder.
The Bestech Factory Advantage
Sourcing your reclamation line directly from our factory ensures a heavy-duty, synchronized system that stands up to the brutal environment of a green sand foundry.
High-Efficiency “Vibro-Cooling” Technology: Our fluid-bed sand coolers use a combination of air and water-cooling to bring hot shakeout sand down to ±5°C of ambient temperature, preventing moisture inconsistencies during mixing.
Precision Fine-Dust Extraction: We utilize multi-stage air-wash separators specifically tuned to remove inactive “dead clay” and ash while retaining the necessary grain distribution for optimal permeability.
Heavy-Duty Magnetic Separation: Our lines feature high-intensity, self-cleaning overbelt magnets and magnetic head pulleys to ensure 100% removal of tramp metal, protecting your muller blades and patterns.
Modular “Plug-and-Play” Design: Our factory pre-engineers the conveyor, elevator, and bin systems for rapid on-site assembly, minimizing your foundry’s downtime during installation.
Your Partner in Foundry Automation
At Bestech, we don’t just sell machines; we optimize your sand. Our team provides full site layouts, electrical integration for automated sand plants, and on-site commissioning to ensure your ROI is realized immediately.
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According to different foundry plant layouts, technical requirements and molding lines, the sand preparation line layout varies a lot. But it basically includes the following process: used-sand reclamation, used-sand crushing and screening, used-sand cooling, clay and coal powder conveying, new sand conveying and green sand mixing.
1. Used-sand reclamation
The used-sand is collected by sand hopper after sand shakeout, and conveyed to next screening process by vibrating conveyor, rubber belt conveyor and bucket elevator. Scrap iron and iron splashing will be separated by magnetic separating equipments during sand conveying.
2. Used-sand crushing and screening
The used-sand is conveyed into polygonal sieve which can break and screen sand lump of used-sand. The remaining sand lump which cannot be broken will be screened out. At the same time, micro powder is drawn out by induction fan, and qualified used-sand flows down to next process—sand cooling via sieve mesh.
3. Used-sand cooling
Sand cooling equipments like fluidized bed cooler and multi-mix cooler have two mediums air and water basically perform the cooling of used sand. Meanwhile, micro powder is drawn out by induction fan.
4. Clay and coal powder conveying
Clay and coal powder will be conveyed to the material hopper above sand mixer through pneumatic conveyor (Y 95 series low pressure conveyor) and be added to sand mixer in certain ratio by electric scale (Y58 series) accurate weighing.
5. New sand conveying
According to different technical requirements, new sand and used sand can be mixed in predetermined ration before being conveyed to material hopper, or they can be mixed in certain ratio after they are conveyed to material hopper above sand mixer.
Our Products
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Multi Piston Molding Machine
High pressure multi piston molding machine adopt hydraulic compaction pressure is for medium and large cast iron castings.
Resin Sand Molding Reclamation Line
Resin sand molding reclamation line is a system used in foundries to recover and reuse resin-coated sand after it has been used in the molding and casting process.
Green Sand Molding Reclamation Line
This system efficiently recycles clay sand molds, reducing material costs and waste, helping you improve production efficiency and maintain consistent mold quality.
Cold Box Core Shooting Machine
This machine is used to produce sand cores for metal casting processes. It operates based on the cold box process, a method where sand is mixed with a resin binder and then hardened or cured by introducing a gaseous catalyst, usually at room temperature
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