Product Parameters
Model |
Efficiency of production:T/H |
Motor power:Kw |
Fan power:Kw |
Delamination rate |
Recovery rate |
Micronized powder content |
S5310 |
10 |
2×18.5 |
15 |
25% |
90% |
5% |
S5315 |
15 |
2×22 |
18.5 |
25% |
90% |
5% |
S5320 |
20 |
2×30 |
20 |
25% |
90% |
5% |
S5330 |
30 |
2×37 |
30 |
25% |
90% |
5% |
Detailed Photos
Product Description
Introducing the pioneering S53 Scrubber Recycling Machine by Qingdao Sanzhuji Technology Co., Ltd., a masterpiece in sand grain rejuvenation. This cutting-edge machine utilizes a powerful double-axis mechanism that meticulously removes the resin curing agent clinging to the surface of sand grains through dynamic rubbing and advanced de-filming processes, ensuring superior quality and performance.
Elevating its efficiency to new heights, the machine's base is ingeniously equipped with a high-performance fan that effectively separates residual old film and dust, guaranteeing immaculate cleanliness. Post this thorough treatment, the rejuvenated old sand exhibits remarkable integrity and perfectly rounded grains. This enhanced quality substantially reduces the necessity for additional liquid materials during subsequent mixing, offering an economical and streamlined process. Discover the future of sand recycling with the groundbreaking S53 Scrubber Recycling Machine.
As the pivotal equipment for the regeneration of foundry old sand, the robust rubbing regeneration machine achieves efficient stripping and regeneration of old sands like resin and water glass sand through the harmonious effect of dual-axis mechanical rubbing and airflow assistance. The following is an in-depth analysis from the perspectives of technical principles, structural design, process flow, and actual application outcomes:
1. Technical principles and core mechanisms
The state-of-the-art dual-axis regeneration machine employs two sets of transmission main shafts that rotate in opposite directions at high speeds (ranging from 720-970r/min), outfitted with wear-resistant alloy blades or cast iron rubbing discs. As sand enters the regeneration chamber, it undergoes repeated rubbing and collision under the linear shear force and convection of the blades. This mechanical operation efficiently strips the resin film and curing agent from the sand surface, achieving surface rounding through particle friction and minimizing edge damage. Compared to the conventional three-axis structure, the dual-axis design optimizes chamber space, increasing material throughput by 10-30t/h while simultaneously reducing energy consumption.
2. Boiling airflow assists film stripping. The bottom blower (with an impressive air volume of over 3700m³/h) injects adjustable airflow into the chamber via the boiling orifice plate to create a fluidized environment of sand and air mixing. This airflow, on one hand, boosts the collision frequency among sand particles, while on the other hand, efficiently discharges the detached inert film and dust through the dust removal vent. This exceptional "mechanical + airflow" synergy elevates the film stripping rate to over 80%, and impressively reduces the sand temperature by 30-50ºC.
3. Wear-resistant and vibration-reducing design. The rubbing blade boasts a carbide convex rib welding process, enhancing wear resistance by a remarkable 3 times; the chamber body and the frame are connected with rubber elasticity to effectively dampen vibrations caused by high-speed operation, ensuring unmatched stability of the equipment.
4. Applicable sand mold and regeneration effect
Furan resin sand: The brittle resin film can be fully removed by rubbing within 180 seconds, maintaining a burning loss of less than 1.0%, and restoring the tensile strength of the regenerated sand to 90% of new sand.
Water glass sand: Requires combination with wet regeneration (sand-water ratio 1:1.5) or low-temperature freezing centrifugal process (-40ºC); however, dry regeneration as a pre-treatment significantly reduces the subsequent wet load.
Alkali phenolic resin sand: The tough film demands higher rubbing strength (such as wheel rolling pressurization). Post-regeneration, the roundness of sand particles is notably improved, and gas emission is reduced by 30%.
5. Technical advantages and economy
The regeneration efficiency is significantly enhanced. Compared to traditional centrifugal regeneration machines (power 22kW/stage) or air flow impact equipment, the double-axis regeneration machine remarkably reduces unit energy consumption by 40%, and maintains sand particle crushing rate within 5%, providing better integrity than vibration regeneration.
By optimizing production costs, Qingdao Sanzhuji Technology Co., Ltd.'s innovative mechanical rubbing and sand regeneration technology offers a remarkable advantage: the resin active film residue in regenerated sand is less than 0.3%. This allows a dramatic reduction in the amount of curing agent needed—by an impressive 30% to 50%—when mixing sand. Furthermore, the sand-to-iron ratio improves from a conventional 1:1 to an efficient 1:1.5, substantially lowering the expense incurred in acquiring new sand.
Our Factory Customization for Mechanical Rubbing and Sand Regeneration stands out for its superior environmental compatibility. The dry regeneration process is engineered to operate without wastewater discharge, ensuring eco-friendliness. Dust emissions are expertly managed through a state-of-the-art pulse back-blowing dust removal system, boasting a dust removal efficiency exceeding 99%. This cutting-edge solution not only complies with but exceeds the ultra-low emission standards demanded by the foundry industry, underscoring our commitment to sustainability.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
With a legacy of excellence spanning 14 illustrious years, we at Qingdao Sanzhuji Technology Co., Ltd. take immense pride in our specialization in the art of sand casting machinery production. Our expansive portfolio features state-of-the-art production lines, including the green sand casting line, the innovative furan resin sand casting line, the sophisticated lost foam casting line, and the advanced coated sand steel sand buried casting line. Each product line is a testament to our commitment to quality and technological advancement.
Contact Us
Address: Located strategically at the North of G204 National Road, Poli Town, within the thriving West Coast New Area of Qingdao, China, our facility is at the heart of innovation and industrial progression.