Product Parameters
Model |
Efficiency of production:m³/H |
Motor power:Kw |
Blower power:Kw |
S8620 |
15-20 |
2×3 |
5.5 |
S8630 |
20-30 |
2×3.7 |
7.5 |
S8650 |
30-50 |
2×5.5 |
15 |
S8680 |
50-80 |
2×7.5 |
22 |
S8612 |
80-120 |
2×11 |
30 |
Detailed Photos
Product Description
Introducing our cutting-edge series of continuous coolers! This state-of-the-art equipment takes old sand and transforms it within the cooling bed. As the high-pressure fan delivers a powerful blast, the sand enters a dynamic boiling state, swirling around the intricately designed coil cooling pipes. This mesmerizing journey starts at the inlet, driven by robust suction and the refreshing touch of cooling water, ensuring that old sand is efficiently cooled and completely free from unwanted film residues.
In the realm of foundry sand regeneration, the rapid and effective cooling of used sand, coupled with the precise removal of film residues, is crucial for maximizing the reuse rate of sand molds and enhancing casting quality. Our equipment revolutionizes this process with continuous boiling cooling technology and a spiral tube enhanced heat exchange system. This dual innovation achieves unparalleled results, cooling old sand to an impressive ≤40ºC and achieving a resin film removal rate soaring beyond 95%. This article will take you on a deep dive into how this groundbreaking equipment sets new standards in sand cooling processes, offering continuous processing capabilities of 20-50t/h while boasting energy consumption rates of ≤1.8kW·h per ton of sand. Explore the technical principles, core advantages, industry applications, and economic benefits that make this equipment a game-changer.
1. Technical principles and core design breakthroughs
Harnessing the cooling potential of old sand, which begins its journey at initial temperatures of 80-120ºC with a film content of 3-8%, our equipment pioneers technological advancements through the dynamic interactions of the fluidized bed and an innovative multi-stage wind-water synergy system:
Continuous fluidized cooling technology:
The high-pressure fan, generating wind pressures of 6-10kPa, propels the sand layer into a remarkable boiling state. Here, sand particles achieve suspension heights of 50-150mm, with the heat exchange area expanding to five times that of a static bed. This rapid transformation sees sand temperatures plummet from 120ºC to a cool 45ºC in a mere 3-5 minutes;
Ingeniously crafted spiral cooling tubes, made from premium 316L stainless steel, are arranged in an elegant serpentine formation. As the cooling water, ranging from 5-25ºC, flows in reverse contact with the sand, it achieves a remarkable 85% heat exchange efficiency—outperforming traditional shell-and-tube structures by 30%.
Film efficient removal system:
Our centrifugal stripping module ensures that as sand particles engage with the tube wall in a dynamic boiling state, the resin film breakage rate exceeds 90%, leaving a residual film thickness of an impressive ≤0.02mm;
With the twin prowess of cyclone dust removal and water film adsorption, this two-stage purification system delivers dust removal efficiencies greater than 99%, successfully eliminating micro powder (≤75μm) and film debris simultaneously. Enjoy ultra-clean exhaust gas emissions with concentrations under 10mg/m³.
Intelligent control module:
2. Core advantages and industry value
Our advanced equipment sets a new benchmark in the industry, offering a multi-dimensional performance boost over traditional vibrating cooling beds through continuous operation and optimized energy consumption:
Efficiency and quality advantages:
With a continuously adjustable processing capacity of 20-50t/h, enjoy unparalleled cooling uniformity with a sand temperature standard deviation of ≤2ºC, a remarkable 50% improvement over intermittent equipment;
Experience a significant reduction in the loss on ignition (LOI) of regenerated sand, dropping from 3.5% to an impressive below 1.2%, while maintaining tensile strength fluctuations of sand molds at a minimal ≤0.2MPa. Energy-saving and environmentally friendly features:
Our closed structure impressively adheres to GB 16297-1996 standards, ensuring a leakage rate of <3mg/m³ and maintaining dust concentration in working environments at an impressive <1mg/m³.
Maintenance and adaptability:
Our modular spiral tube group, featuring a quick-release design, can be replaced in under 4 hours, slashing average annual maintenance costs by an impressive 60%;
Seamlessly integrate vibrating screens and magnetic separators to create a comprehensive "cooling-purification-regeneration" production line, versatile enough for resin sand, water glass sand, and more diverse processes.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
Pioneers in the realm of sand casting machinery, Qingdao Sanzhuji Technology Co., Ltd. boasts a distinguished legacy spanning 14 years. Our expertise encompasses the full spectrum of sand casting solutions, featuring premier green sand casting production lines, furan resin sand casting systems, and the innovative lost foam casting production lines. Additionally, we specialize in coated sand steel sand buried casting production lines, delivering unparalleled precision and quality to meet your diverse casting needs.
Contact Us
Address: Nestled in the heart of Qingdao's dynamic West Coast New Area, find us at the North of G204 National Road, Poli Town, Qingdao, China. We invite you to connect with us for world-class casting solutions.