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
When the sand mold of the sand box rotates to a specific height, it gracefully descends to the simplified box's base, driven solely by its own weight. Through a harmonious dance of impact and friction, the sand mold and casting separate efficiently, navigating towards the simplified box grid, led by the spiral plates. The sand seamlessly transitions into the old sand system, while the casting makes its exit via the discharge port.
In the critical sand-falling segment of the foundry workshop, the ability to efficiently separate sand molds from castings directly influences both the production tempo and the quality of old sand regeneration. The innovative spiral guide sand-falling system embedded within the sand box achieves a dual breakthrough: flawless casting separation and precise old sand recovery. Thanks to its cutting-edge structural design and intelligent control technology, this equipment empowers foundry companies with clean production capabilities while slashing costs and boosting efficiency. With three pivotal breakthroughs—optimized gravitational potential energy usage, seamless casting separation, and intelligent regeneration of used sand—this equipment emerges as a groundbreaking technical solution for contemporary foundries.
1. Technical Principle and Core Component Design
Harnessing the inherent physical properties of sand molds (compressive strength 0.8-1.2MPa) alongside castings (weight 50-5000kg), this system masterfully achieves efficient separation through the symbiotic dance of gravitational impact and spiral guidance:
Rotation and Tipping Mechanism:
The sand box, elegantly driven by a servo motor, rotates to a precise angle of 45°-75° (error ±0.5°). As gravity accelerates (4.5-6m/s²), castings and sand molds impact the simple box's base, initiating a remarkable initial separation efficiency of 98%.
The bottom of the simple box is fortified with AR450 wear-resistant steel plate (thickness 20mm), delivering triple the impact resistance and ensuring a service life surpassing 5 years.
Spiral Guide System:
Innovatively designed multi-layer involute spiral plates (pitch 300-800mm) steer the sand flow into a vortex motion. This process achieves secondary crushing through particle friction (friction angle 32°-35°), with a molding sand residual rate of less than 0.5kg.
The guide plate's surface is meticulously laser-clad with a tungsten carbide coating (thickness 0.2mm), minimizing the friction coefficient to μ<0.15, suitable for diverse molding sands including resin and water glass sand.
Intelligent Sorting Module:
A sophisticated double-layer vibrating screen (aperture Φ5mm/Φ0.2mm) at the old sand outlet adeptly separates iron bean impurities (>5mm) and micro powder (<0.2mm), achieving an old sand regeneration qualified rate exceeding 95%.
The casting slide is equipped with an advanced visual inspection system (5 million pixels), which continuously monitors casting integrity in real-time, effortlessly directing defective products to the rework line.
2. Process Advantages and Economic Benefits
In comparison to traditional vibrating sand-falling machines, this system sets a new benchmark in efficiency through strategic energy optimization and a modular design approach:
Enhanced Separation Quality:
The residual sand amount on casting surfaces is reduced to less than 0.3g/cm², an 80% decrease compared to pneumatic impact equipment, significantly lowering subsequent cleaning costs by 60%.
The loss on ignition (LOI) of old sand is meticulously controlled to ≤3.5%, boosting the reuse rate to 92% while halving the need for new sand replenishment.
Record-Breaking Low Energy Consumption:
Harnessing gravitational potential energy at an astounding 85% efficiency, the power consumption per ton of casting separation is kept ≤1.2kW·h, resulting in a remarkable 45% energy savings compared to traditional vibrating sand-falling machines.
Experience reduced production noise with an impressively low impact noise level of ≤78dB(A). Benefit from an ultra-clean environment with dust concentration kept under 5mg/m³. Furthermore, enjoy a remarkable 70% reduction in your environmental protection costs, enhancing your operational efficiency and sustainability.
Discover our Intelligent Operation and Maintenance System: a cutting-edge integration of technology that ensures seamless performance and reliability.
Our state-of-the-art Predictive Maintenance Module continuously monitors the bearing temperature, with an alarm threshold set at 85ºC, and analyzes the vibration spectrum in real-time. This advanced system is designed to alert you of potential faults up to 7 days in advance, preventing disruptions and maintaining smooth operations.
Utilize the power of our Digital Twin Platform to simulate and determine the optimal tipping angle for varying casting weights from 100 to 3000kg. This innovative system ensures a separation efficiency fluctuation rate of less than 2%, guaranteeing precision and effectiveness in your operations.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
With over 14 illustrious years of pioneering excellence, Qingdao Sanzhuji Technology Co., Ltd. is a trusted leader in the production of state-of-the-art sand casting machinery. We specialize in a wide array of innovative casting solutions, such as green sand casting production lines, cutting-edge furan resin sand casting production lines, revolutionary lost foam casting production lines, and advanced coated sand steel sand buried casting production lines. Our technology and expertise ensure high-quality outcomes tailored to your needs.
Contact Us
Address: Conveniently located at the heart of industrial innovation, find us at the North of G204 National Road, Poli Town, West Coast New Area, Qingdao, China.