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
Delve into the marvel of our cutting-edge sand separation system. When the mold within the sand box rotates to a predetermined height, it gracefully descends to the base of the streamlined compartment under its own weight. This natural motion, paired with mutual impact and friction, allows the sand mold and casting to separate seamlessly, advancing towards the grid of the compartment guided by spiral plates. The sand is then expertly redirected to the old sand system, while the casting exits effortlessly through the designated discharge port.
In the critical sand-falling section of the foundry workshop, our innovative system revolutionizes the efficient separation of sand molds and castings, dramatically influencing production cadence and enhancing the quality of old sand regeneration. Our spiral guide sand-falling system achieves a remarkable dual breakthrough in both the non-destructive separation of castings and the precise recovery of old sand through its pioneering structural design and intelligent control technology. This comprehensive analysis unveils how our equipment empowers foundry companies to embrace clean production, reduce costs, and elevate efficiency. With significant breakthroughs in harnessing gravitational potential energy, achieving lossless separation of castings, and smart regeneration of used sand, this equipment is the hallmark of modern foundry innovation.
1. Technical principle and core component design
Rooted in the intrinsic physical properties of sand molds (compressive strength 0.8-1.2MPa) and castings (weight 50-5000kg), our system excels at achieving efficient separation through the harmonious blend of gravity impact and spiral guidance:
Rotation and tipping mechanism:
The sand box, powered by a high-precision servo motor, rotates to an optimal angle between 45°-75° (with a minimal error margin of ±0.5°). Under the influence of gravity acceleration (4.5-6m/s²), the castings and sand molds descend onto the base plate of the simple box, achieving an impressive initial separation efficiency of 98%.
Reinforced with AR450 wear-resistant steel plate (20mm thickness), the simple box base exhibits impact resistance that is threefold stronger, offering a robust service life exceeding 5 years.
Spiral guide system:
This sophisticated system employs multi-layer involute spiral plates (300-800mm pitch) to guide the sand flow in a vortex motion. Secondary crushing is attained through particle friction (friction angle 32°-35°), ensuring a minimal residual molding sand rate of less than 0.5kg.
The guide plate's surface is enhanced with a tungsten carbide laser-clad coating (0.2mm thickness) that minimizes the friction coefficient to μ<0.15, making it adept for various molding sands including resin sand and water glass sand.
Intelligent sorting module:
Equipped with a double-layer vibrating screen (Φ5mm/Φ0.2mm aperture), the old sand outlet efficiently separates iron bean impurities (>5mm) and micro powder (<0.2mm), achieving an old sand regeneration qualified rate of over 95%.
Advanced visual inspection systems (5 million pixels) on the casting slide meticulously identify casting integrity in real time, with defective products automatically rerouted to the rework line.
2. Process advantages and economic benefits
Our state-of-the-art system delivers a quantum leap in efficiency compared to traditional vibrating sand-falling machines, driven by energy optimization and modular design:
Improved separation quality:
The casting surface boasts an impressively low residual sand amount of less than 0.3g/cm², an 80% reduction compared to pneumatic impact equipment, culminating in a 60% reduction in subsequent cleaning costs.
Old sand's loss on ignition (LOI) is expertly controlled at ≤3.5%, propelling reuse rates to an impressive 92%, and significantly reducing new sand replenishment by 50%.
Record-breaking low energy consumption:
The system's utilization of gravitational potential energy reaches a remarkable 85%, with power consumption for casting separation at an outstanding ≤1.2kW·h per ton, achieving a 45% energy saving compared to vibrating sand-falling machines.
Experience the pinnacle of silence and efficiency with our breakthrough technology where impact noise remains gracefully quiet at ≤78dB(A), while maintaining dust concentration at an impressively low <5mg/m³. Furthermore, witness a transformative 70% reduction in environmental protection costs, making sustainable practices more accessible and economically sound.
Intelligent operation and maintenance system: A hallmark of innovation, providing seamless integration and unmatched precision.
Our state-of-the-art predictive maintenance module revolutionizes equipment reliability by constantly monitoring the bearing temperature, with an alert threshold of 85ºC, alongside a real-time analysis of vibration spectra. This proactive approach foresees potential failures, issuing timely warnings a full 7 days in advance, ensuring uninterrupted performance and longevity.
Leveraging cutting-edge technology, the digital twin platform effortlessly simulates the optimal tipping angle across varying casting weights, ranging from 100kg to 3000kg. This precision engineering ensures that the separation efficiency fluctuation rate remains astoundingly low, under 2%, delivering consistently reliable results.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
With over 14 years of innovative excellence, Qingdao Sanzhuji Technology Co., Ltd. is a renowned leader in the production of high-quality sand casting machinery. Our comprehensive product range includes cutting-edge green sand casting production lines, efficient furan resin sand casting lines, state-of-the-art lost foam casting production lines, and advanced coated sand steel sand buried casting production lines, all meticulously engineered to meet the diverse needs of our clients.
Contact Us
Address: Conveniently located at the North of G204 National Road in Poli Town of the vibrant West Coast New Area, Qingdao, China, our facility is positioned to serve our global clientele with ease and efficiency.