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 state-of-the-art continuous cooling solution: a revolutionary system designed to transform old sand into pristine condition. Our equipment leverages high-pressure fan dynamics, creating an energetic boiling state that gently propels sand along a meandering coil. This innovative process ensures that sand is thoroughly cooled while effectively removing residual film, setting a new standard in sand cooling efficiency.
In the realm of foundry sand regeneration, the swift cooling and meticulous removal of film residues are crucial to enhancing both the longevity of sand molds and the precision of castings. Our cutting-edge equipment employs advanced boiling cooling technology alongside a spiral tube heat exchange system. This dual-fold technological innovation achieves an unprecedented cooling of used sand to temperatures below 40ºC, while ensuring a resin film removal rate exceeding 95%. This detailed examination explores how our equipment redefines sand cooling standards, with continuous processing capabilities of 20-50t/h and impressive energy efficiency of ≤1.8kW·h per ton, from the vantage points of technical ingenuity, inherent advantages, diverse industry applications, and significant economic gains.
1. Technical principles and core design breakthroughs
Our equipment embodies a leap in technological advancement by exploiting the intrinsic cooling properties of old sand (initially at 80-120ºC with a film content of 3-8%) through a harmonious blend of fluidized bed heat exchange and a multi-tiered wind-water synergy system:
Continuous fluidized cooling technology:
A high-pressure fan, generating wind pressures of 6-10kPa, instills a boiling state within the sand layer. This phenomenon elevates sand particles to heights of 50-150mm, multiplying the heat exchange surface area fivefold compared to static beds. Consequently, the sand temperature plummets from 120ºC to a cool 45ºC in a mere 3-5 minutes.
Ingeniously arranged spiral cooling tubes, crafted from robust 316L stainless steel, weave through the system in a serpentine configuration. Cooling water, maintained between 5-25ºC, flows counter-currently against the sand, achieving an exceptional heat exchange efficiency of 85%, a remarkable 30% enhancement over traditional shell-and-tube models.
Film efficient removal system:
Our centrifugal stripping module ensures sand particles, in a dynamic boiling state, expertly abrade against tube walls. This results in a resin film breakage rate surpassing 90% and achieves a remarkably thin residual film thickness of ≤0.02mm.
Our dual-stage purification, comprising cyclone dust removal coupled with water film adsorption, achieves dust removal efficiencies greater than 99%. This system effectively captures micropowder (≤75μm) and film debris, ensuring exhaust emissions remain below 10mg/m³ for a cleaner, greener process.
Intelligent control module:
2. Core advantages and industry value
In stark contrast to traditional vibrating cooling beds, our equipment presents a substantial upgrade through its continuous operational capacity and optimized energy consumption, redefining industry standards:
Efficiency and quality advantages:
Remarkable adaptability allows for continuously adjustable processing rates of 20-50t/h, achieving a cooling uniformity with a sand temperature standard deviation reduced by 50% compared to intermittent systems.
Our advanced system reduces the loss on ignition (LOI) of regenerated sand from 3.5% to a mere 1.2%, while maintaining the tensile strength fluctuation of sand molds at ≤0.2MPa. Energy efficiency and environmental sustainability are paramount.
With a robust closed structure, our solution adheres to GB 16297-1996 standards, maintaining dust concentrations in the working environment at a minimal <1mg/m³, ensuring a cleaner and safer workspace.
Maintenance and adaptability:
Our innovative quick-release modular spiral tube design facilitates tube replacements in under 4 hours, substantially reducing annual maintenance costs by 60%.
This versatile system can seamlessly integrate vibrating screens and magnetic separators, establishing a comprehensive 'cooling-purification-regeneration' production line that adapts to various processes such as resin sand and water glass sand.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
With a proud legacy spanning 14 years, Qingdao Sanzhuji Technology Co., Ltd. stands as a beacon of expertise in the sand casting industry. Specializing in an array of casting machinery, we provide comprehensive solutions including the green sand casting production line, furan resin sand casting production line, lost foam casting production line, and coated sand steel sand buried casting production line. Our extensive experience ensures unparalleled quality and innovation in every project.
Contact Us
Address: Nestled in the heart of Qingdao's dynamic West Coast New Area, our facility is conveniently located North of G204 National Road, Poli Town, Qingdao, China. Visit us to explore our state-of-the-art production capabilities.