Product Parameters
Model |
Efficiency of production:T/H |
Dust removal air volume:m³/H |
Motor power:Kw |
L3210 |
10-12 |
5000-8000 |
7.5 |
L3214 |
16-25 |
8000-12000 |
11 |
L3216 |
25-40 |
12000-18000 |
18.5 |
L3218 |
40-60 |
16000-25000 |
30 |
L3220 |
60-80 |
20000-30000 |
37 |
L3224 |
80-100 |
25000-35000 |
45 |
L3226 |
100-140 |
30000-40000 |
55 |
Detailed Photos
Product Description
As the mold of the sand box gracefully rotates to a designated height, it elegantly descends to the base of the streamlined box, guided purely by its own gravitational allure. Within this harmonious dance of mutual impact and friction, the sand mold and the casting diverge splendidly, journeying along the path set by the spiral plates towards the simplified box grid. Thus, the sand finds its way into the old sand system, while the casting makes a seamless exit via the discharge port.
In the pivotal sand-falling section of the foundry workshop, the seamless separation of sand molds and castings is a game-changer, directly influencing production cadence and the pristine quality of regenerated sand. Our revolutionary spiral guide sand-falling system for the sand box heralds a dual triumph in the flawless, non-destructive separation of castings and the precise recovery of old sand. Through cutting-edge structural design and the brilliance of intelligent control technology, we embark on a comprehensive exploration of how this innovation propels foundry businesses towards cleaner production, cost-efficiency, and heightened productivity. Revel in three transformative breakthroughs: the masterful harnessing of gravitational potential energy, the immaculate separation of castings, and the intelligent regeneration of used sand. This equipment emerges as a beacon of innovative technical prowess for the modern foundry landscape.
1. Technical Principle and Core Component Design
Leveraging the inherent physical attributes of sand molds (compressive strength 0.8-1.2MPa) and castings (weight 50-5000kg), the system orchestrates a symphony of gravity impact and spiral guidance to achieve unparalleled separation efficiency:
Rotation and Tipping Mechanism:
Guided by precision, the sand box is powered by a state-of-the-art servo motor, gracefully rotating to an optimal angle between 45°-75° (error margin ±0.5°). This exquisite orchestration sends the castings and sand molds onto the bottom plate of the simple box with gravitational acceleration (4.5-6m/s²), achieving an astounding initial separation efficiency of 98%.
The base of the simple box is armored with an AR450 wear-resistant steel plate (thickness 20mm), tripling its impact endurance and extending its service longevity to a remarkable >5 years.
Spiral Guide System:
Our multi-layer involute spiral plates (pitch 300-800mm) ingeniously channel the sand flow into a mesmerizing vortex motion, executing secondary crushing through particle friction (friction angle 32°-35°). The result? A molding sand residual rate of a mere <0.5kg, showcasing unparalleled precision and efficiency.
Laser-clad with a tungsten carbide coating (thickness 0.2mm), the guide plate surface boasts a dramatically reduced friction coefficient (μ<0.15), adapting seamlessly to a variety of molding sands like resin and water glass sand.
Intelligent Sorting Module:
Equipped with a sophisticated double-layer vibrating screen (aperture Φ5mm/Φ0.2mm), the old sand outlet expertly filters iron bean impurities (>5mm) and micro powder (<0.2mm), achieving an outstanding regeneration qualified rate of >95% for old sand.
The casting slide's cutting-edge visual inspection system (5 million pixels) vigilantly monitors casting integrity in real time, automatically redirecting defective products to the rework line, ensuring flawless quality control.
2. Process Advantages and Economic Benefits
Compared to conventional vibrating sand-falling machines, this avant-garde system revolutionizes efficiency through strategic energy optimization and modular innovation:
Enhanced Separation Quality:
With a remarkable reduction in residual sand on casting surfaces to less than 0.3g/cm²—an impressive 80% decrease compared to pneumatic impact equipment—the subsequent cleaning costs are slashed by an extraordinary 60%.
Maintaining a controlled loss on ignition (LOI) of old sand at ≤3.5%, the reuse rate skyrockets to an impressive 92%, while the need for new sand replenishment plummets by 50%.
Unprecedented Low Energy Consumption:
The gravitational potential energy utilization rate triumphantly reaches 85%, and the power consumption per ton of casting separation is contained to a mere ≤1.2kW·h, representing an awe-inspiring 45% energy saving compared to traditional vibrating sand-falling machines.
Experience the revolution in noise reduction and environmental sustainability. Our advanced technology ensures impact noise levels at an impressively low ≤78dB(A), while maintaining dust concentration below 5mg/m³. Remarkably, this translates to a 70% reduction in environmental protection costs, setting a new standard in eco-friendly operations.
Intelligent Operation and Maintenance System: Elevate your operational efficiency with our state-of-the-art intelligent system, designed to seamlessly integrate into your processes for optimal performance.
Our cutting-edge predictive maintenance module is engineered to meticulously monitor bearing temperatures with a precise alarm threshold set at 85ºC. It also tracks vibration spectra in real time, providing fault warnings a full 7 days in advance, ensuring proactive maintenance and uninterrupted operations.
Harness the power of our digital twin platform to simulate the perfect tipping angle for varying casting weights ranging from 100kg to 3000kg. Experience unparalleled precision with a fluctuation rate in separation efficiency of less than 2%, delivering consistent and reliable results every time.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
With over 14 years of unparalleled industry expertise, Qingdao Sanzhuji Technology Co., Ltd. stands at the forefront of innovation and excellence in the realm of sand casting machinery. Our extensive range of products includes state-of-the-art green sand casting production lines, advanced furan resin sand casting production lines, innovative lost foam casting production lines, and meticulously engineered coated sand steel sand buried casting production lines. Each product is a testament to our commitment to quality and precision.
Contact Us
Address: Nestled in the vibrant area of Poli Town, our facility is conveniently located in the West Coast New Area of Qingdao, China, just off the North of G204 National Road, offering easy accessibility and a strategic location for our business operations.