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 within the sand box ascends and reaches a specific height, it gracefully descends to the simplified box's base by the force of gravity. Through dynamic impact and gentle friction, the sand mold and casting are seamlessly separated, guiding them efficiently towards the simplified box grid via the spiral plates. The sand seamlessly transfers to the old sand system, while the casting exits elegantly through the discharge port.
Within the foundry workshop's sand-falling section, the swift and precise separation of sand molds and castings is crucial, directly influencing the production pace and the quality of regenerated old sand. Our state-of-the-art spiral guide sand-falling system, housed within the sand box, has revolutionized the industry by introducing groundbreaking non-destructive casting separation and precise old sand recovery, thanks to its innovative structural design and advanced intelligent control technology. This comprehensive article delves into how this cutting-edge equipment empowers foundry companies to embrace clean production, streamline costs, and boost efficiency. With three remarkable breakthroughs—maximized gravitational potential energy utilization, flawless casting separation, and intelligent regeneration of used sand—this equipment emerges as a trailblazing technical solution for contemporary foundries.
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 masterfully achieves superior separation through the harmonious blend of gravitational impact and spiral guidance:
Rotation and tipping mechanism:
Propelled by a servo motor, the sand box rotates to a meticulously calibrated angle of 45°-75° (with a precision error of ±0.5°), initiating the castings and sand molds to impact the simple box's base with gravity acceleration (ranging from 4.5-6m/s²), achieving an initial separation efficiency of an impressive 98%.
The base of the simple box is fortified with a robust AR450 wear-resistant steel plate (20mm thick), tripling impact resistance, ensuring durability, and offering a remarkable service life exceeding 5 years.
Spiral guide system:
Ingenious multi-layer involute spiral plates (with pitches ranging from 300-800mm) guide the sand in a mesmerizing vortex motion, achieving secondary crushing through particle friction (friction angle between 32°-35°), resulting in a molding sand residual rate of under 0.5kg.
The guide plate's surface is enhanced with a sleek laser-clad tungsten carbide coating (0.2mm thick), minimizing friction to a coefficient of μ<0.15, making it adaptable for diverse molding sands such as resin sand and water glass sand.
Intelligent sorting module:
Equipped with a double-layer vibrating screen (apertures Φ5mm/Φ0.2mm) at the old sand outlet, it expertly separates iron bean impurities (>5mm) and micro powder (<0.2mm), achieving an old sand regeneration qualification rate exceeding 95%.
The casting slide boasts a sophisticated visual inspection system (5 million pixels) that vigilantly monitors the casting's integrity in real-time, with defective products automatically rerouted to the rework line.
2. Process advantages and economic benefits
In stark contrast to conventional vibrating sand-falling machines, this pioneering system redefines efficiency through meticulous energy optimization and a modular design approach:
Improved separation quality:
The residual sand on casting surfaces is impressively reduced to less than 0.3g/cm², an impressive 80% reduction compared to pneumatic impact equipment, significantly cutting subsequent cleaning costs by 60%.
The loss on ignition (LOI) of old sand is meticulously controlled to ≤3.5%, elevating the reuse rate to an impressive 92% and reducing new sand replenishment by 50%.
Record-breaking low energy consumption:
Experience an incredible 85% utilization rate of gravitational potential energy with our advanced technology. Our Custom Knockout Barrel significantly reduces power consumption, using ≤1.2kW·h per ton for casting separation, translating to an impressive 45% energy savings compared to traditional vibrating sand-falling machines.
Revolutionize your workspace with our state-of-the-art technology, delivering an impact noise level of only ≤78dB(A) and maintaining a dust concentration of <5mg/m³. This not only ensures a quieter and cleaner working environment but also cuts environmental protection costs by a remarkable 70%!
Welcome to the future of operational excellence with our Intelligent Operation and Maintenance System, designed to enhance performance and reduce downtime.
Our predictive maintenance module is a game-changer, meticulously monitoring bearing temperature with an alarm threshold set at 85ºC, and analyzing vibration spectrum in real-time. It effectively predicts and warns of potential faults up to 7 days in advance, allowing proactive maintenance and minimizing unexpected interruptions.
Leverage cutting-edge technology with our Digital Twin Platform, which expertly simulates the optimal tipping angle for various casting weights ranging from 100 to 3000kg. This ensures that the separation efficiency fluctuation rate remains impressively low at less than 2%, guaranteeing consistent and reliable performance.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
With an illustrious legacy stretching over 14 remarkable years, Qingdao Sanzhuji Technology Co., Ltd. stands as a beacon of excellence in the realm of sand casting machinery. Proudly crafting a diverse array of state-of-the-art machinery, we specialize in green sand casting production lines, furan resin sand casting production lines, lost foam casting production lines, and coated sand steel sand buried casting production lines. Our unwavering commitment to quality and innovation sets us apart as industry leaders.
Contact Us
Address: Nestled in the strategic hub of Poli Town, West Coast New Area, along the North of G204 National Road, Qingdao, China, our factory is perfectly positioned to serve your needs.