Product Parameters
Model |
Efficiency of production:m³/H |
Turning radius:mm |
Motor power:Kw |
Motor speed: R/min |
Fan power:Kw |
Air volume:m³/H |
S8340 |
40 |
700 |
18.5 |
970 |
7.5 |
5730 |
S8380 |
80 |
800 |
30 |
980 |
15 |
10850 |
S83120 |
120 |
900 |
45 |
980 |
15 |
12780 |
S83160 |
160 |
1150 |
75 |
1490 |
22 |
17463 |
Detailed Photos

Product Description
Introducing the innovative Customizable Sand Cooler Multi-Cooler from Qingdao Sanzhuji Technology Co., Ltd., a marvel in engineering specifically devised for the rejuvenating cooling of old green sand. This exceptional machine ensures that the temperature, humidity, and composition of the old sand are harmoniously unified, delivering a seamless cooling process. With its compact architecture and stable operation, it is engineered for minimal energy consumption while achieving outstanding cooling results. Harnessing the power of a high-pressure fan, the sand reaches a boiling state, optimizing the cooling efficiency. The user-friendly adjustable unloading door allows precise control over material discharge, making it a sophisticated component of an ideal sand cooling system. Complete with an automatic temperature and humidification system, blower, induced fan, and water system, it forms a comprehensive solution to revolutionize sand cooling.
Our machine offers unparalleled flexibility with two distinct discharging options: the straight line type and the vertical type, adaptable to various installation contexts. When placing an order, users can specify the preferred unloading direction—left or right—to suit operational needs, ensuring seamless integration into existing workflows.
In the dynamic environment of the foundry workshop, the role of cooling high-temperature wet sand (ranging from 80-150ºC with a water content of 3-8%) is critical. It directly influences the recycling rate of molding sand and the overall quality of castings. Our double-disc stirring cooler stands at the forefront of innovation, offering an efficient, energy-saving, and customizable solution. Utilizing boiling heat exchange and multi-parameter precise control technology, this equipment sets a new benchmark in energy efficiency for sand processing. This document delves into the thermodynamic principles and process adaptability, highlighting the sophisticated intelligent control system and its applicability across multiple industries, reshaping the standards of sand processing.
1. Technical principle and core component design
Capitalizing on the physical properties of old sand particles (particle size 0.15-1.2mm), our equipment achieves groundbreaking success through two core technologies: fluidized cooling and dynamic homogenization, redefining industry standards.
Boiling state heat exchange system:
Our high-pressure centrifugal fan, with an impressive air volume capacity of 8000-25000m³/h, elevates the sand layer to a suspended, boiling state (300-600mm). This dramatically expands the contact surface between sand particles and the cool air, enhancing cooling efficiency to an impressive 30-80t/h, and achieving a 40% energy saving compared to traditional vibrating cooling beds.
Stepped air distribution plate: Our innovative porous ceramic hood, with a 35% porosity, combined with guide vanes, ensures uniform airflow distribution (speed deviation <5%), effectively preventing local overheating or agglomeration, guaranteeing consistent cooling performance.
Coordinated control of temperature and humidity:
Dual-fluid nozzle system: This system meticulously balances compressed air (0.6MPa) with atomized water (particle size 10-50μm), maintaining the old sand's humidity at 2.5±0.3% and reducing its temperature to a stable ≤35ºC, optimizing conditions for subsequent processing.
Infrared thermal imager: Featuring real-time monitoring of the sand layer's temperature field (accuracy ±1ºC), it enables dynamic adjustments to fan speeds and water spray volumes, effectively eliminating cooling inconsistencies and enhancing overall system reliability.
Modular structural design:
Linear/vertical dual mode:
Linear type (L series): Tailored for sand processing lines that boast ample ground space, this series offers a remarkable processing capacity of up to 100t/h, delivering impressive throughput and efficiency.
Vertical type (V series): Engineered with a space-saving tower layout that occupies only ≤8, this model is ideal for compact production areas with a ceiling height exceeding 8m, optimizing vertical space utilization.
Two-way unloading door: Featuring a pneumatically adjustable gate valve (0-100%), our design allows unloading accuracy up to ±2%, with customizable left/right discharge directions, enhancing operational flexibility.
2. Full-process integrated solution for foundry sand treatment
Our state-of-the-art equipment can be seamlessly integrated into the comprehensive sand-sanding-screening-cooling-regeneration process chain, crafting an intelligent cooling unit that revolutionizes foundry sand treatment.
Pretreatment of high-temperature old sand:
In conjunction with the vibrating conveyor, our unit initiates the pre-cooling phase, reducing 600ºC red sand to a manageable 150-200ºC, thereby preventing high-temperature deformation of the fluidized bed, setting the stage for efficient subsequent processing.
Our cutting-edge magnetic separation module (with magnetic induction intensity of no less than 1200Gs) meticulously eliminates iron bean impurities, safeguarding the air distribution plate from potential impact wear and tear.
Revolutionary Closed-loop Water Circulation System:
Through the innovative combination of a cyclone separator (achieving an impressive removal rate exceeding 95%) and a plate heat exchanger (ensuring a temperature difference of ≤5ºC), wastewater is ingeniously recycled, resulting in a remarkable water saving rate of 70%.
Advanced Intelligent Dust Removal System:
At the pinnacle of this system is a highly efficient pulse bag dust collector, boasting a filtration efficiency of 99.9%. The emission concentration remains under <10mg/m³, and the operational noise level is maintained at a comfortable ≤75dB(A).
3. Comparative Analysis: Core Advantages and Economic Gains
In comparison with conventional cooling apparatus, our machine revolutionizes efficiency through an unparalleled blend of energy recovery and state-of-the-art digital twin control technology:
Optimized Energy Consumption Strategies:
The sophisticated heat pipe waste heat recovery mechanism efficiently converts exhaust gas heat (ranging from 80-120ºC) into valuable hot water (50-70ºC), leading to an extraordinary annual saving of over 800,000 yuan in steam expenses, predicated on a processing capacity of 50t/h.
Thanks to the synergy of a variable frequency fan and a permanent magnet motor, the power consumption per ton of sand is remarkably reduced to ≤1.2kW·h, which is a striking 35% lower compared to other similar equipment.
Data-Driven Quality Enhancement:
The fluctuation in the compaction rate of the molding sand has been impressively minimized from ±2.5% to ±0.8%, and the incidence of porosity defects in castings has been slashed by an astounding 75%;
The reuse rate of old sand has surged to a remarkable 90%, consequently halving the costs associated with replenishing new sand by 50%.
Maintenance Made Effortless:
Featuring a quick-detachable hood design, replacing a single hood is a breeze, taking less than 3 minutes to complete;
Both the observation window and maintenance platform not only adhere to OSHA standards but also facilitate seamless online maintenance support.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
With a proud legacy spanning over 14 years, Qingdao Sanzhuji Technology Co., Ltd. stands at the forefront of innovation in the sand casting machinery industry. Our expertise stretches across a diverse range of specialized production lines, including those for green sand casting, furan resin sand casting, lost foam casting, and coated sand steel sand buried casting. Our commitment to excellence and quality has cemented our reputation as a trusted leader in the field.
Contact Us
Address: Nestled in the strategic location of North of G204 National Road, Poli Town, within the dynamic West Coast New Area of Qingdao, China, our address is a hub of manufacturing prowess and innovation.