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 ascends to a predetermined height, it gracefully descends to the base of the simplified box through its own natural weight. Through strategic impact and friction, the seamless separation of the sand mold from the casting is efficiently guided along the spiral plates towards the simplified box grid. The sand is then seamlessly integrated into the old sand system, while the casting is effortlessly discharged through the designated port for optimal operational flow.
In the sand-falling section of the foundry workshop, the precision and efficiency of sand mold and casting separation play a pivotal role in maintaining production rhythm and enhancing the quality of old sand regeneration. The spiral guide sand-falling system, with its innovative structural design and intelligent control technology, pioneers a remarkable leap in non-destructive casting separation and precise old sand recovery. This comprehensive analysis explores how this state-of-the-art equipment empowers foundry companies to achieve immaculate production, substantial cost reductions, and amplified efficiency. Through three groundbreaking advances—optimal gravitational potential energy utilization, flawless casting separation, and intelligent regeneration of used sand—this equipment stands as a revolutionary technical solution for the modern foundry industry.
1. Technical principle and core component design
Harnessing the intrinsic physical properties of sand molds (compressive strength 0.8-1.2MPa) and castings (weight 50-5000kg), the system achieves exceptional separation efficiency through the combined forces of gravitational impact and strategic spiral guidance:
Rotation and tipping mechanism:
Aided by a servo motor, the sand box rotates to a precise angle between 45°-75° (with an impeccable error margin of ±0.5°). Castings and sand molds strike the bottom plate of the simplified box, driven by the acceleration of gravity (4.5-6m/s²), achieving an initial separation efficiency of an impressive 98%.
The robust bottom of the simplified box is fortified with AR450 wear-resistant steel plate (20mm thick), significantly enhancing impact resistance by threefold, guaranteeing a remarkable service life exceeding five years.
Spiral guide system:
Ingeniously designed multi-layer involute spiral plates (with a pitch of 300-800mm) orchestrate a vortex motion in the sand flow. Through adept particle friction (friction angle 32°-35°), secondary crushing is achieved, minimizing the residual molding sand rate to under 0.5kg.
The guide plate's surface is enhanced with a laser-clad tungsten carbide coating (0.2mm thick), significantly reducing the friction coefficient to an impressive μ<0.15, rendering it versatile for various molding sands including resin and water glass sand.
Intelligent sorting module:
The old sand outlet is equipped with a sophisticated double-layer vibrating screen (aperture Φ5mm/Φ0.2mm), diligently separating iron bean impurities (>5mm) from micro powders (<0.2mm) with a remarkable old sand regeneration qualified rate surpassing 95%.
The casting slide is equipped with an advanced visual inspection system boasting 5 million pixels to meticulously verify casting integrity in real time, automatically redirecting any defective products to the rework line for seamless quality assurance.
2. Process advantages and economic benefits
In comparison to conventional vibrating sand-falling machines, this innovative system achieves unparalleled efficiency through strategic energy optimization and a cutting-edge modular design:
Improved separation quality:
Surface residual sand on castings is remarkably reduced to less than 0.3g/cm², an 80% reduction compared to pneumatic impact equipment, culminating in a 60% decrease in subsequent cleaning costs.
The loss on ignition (LOI) of old sand is expertly controlled to ≤3.5%, elevating the reuse rate to an impressive 92% and slashing new sand replenishment by 50%.
Record-breaking low energy consumption:
Gravitational potential energy utilization soars to 85%, with power consumption per ton of casting separation reduced to ≤1.2kW·h, achieving a remarkable 45% energy savings compared to traditional vibrating sand-falling machines.
Experience unparalleled operational efficiency with our knockout barrel, expertly engineered to minimize environmental impact. Enjoy a whisper-quiet performance with an impact noise level of ≤78dB(A). Our eco-friendly design reduces dust concentration to a mere <5mg/m³, achieving an impressive 70% reduction in environmental protection costs.
Innovative Intelligent Operation and Maintenance System:
Our cutting-edge predictive maintenance module offers real-time monitoring of bearing temperatures, maintaining safe operations with an alarm threshold set at 85ºC. Furthermore, it analyzes the vibration spectrum to foresee potential faults, providing advance warnings a full 7 days before issues arise, ensuring maximum uptime and reliability.
Leverage our advanced digital twin platform to achieve precision and efficiency. It adeptly simulates the optimal tipping angle across varying casting weights ranging from 100 to 3000kg. The result? A remarkably stable separation efficiency with a fluctuation rate of less than 2%, ensuring consistent, high-quality performance.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
With over 14 years of esteemed expertise, Qingdao Sanzhuji Technology Co., Ltd. stands at the forefront of sand casting machinery production. Our diverse portfolio includes cutting-edge green sand casting production lines, innovative furan resin sand casting systems, state-of-the-art lost foam casting lines, and the advanced coated sand steel sand buried casting production lines. We are proud to be a distinguished leader in the industry, delivering excellence through our specialized manufacturing processes.
Contact Us
Address: Nestled in the industrious heartland of China, our facility is strategically located at the North of G204 National Road, Poli Town, within the vibrant West Coast New Area of Qingdao, China.