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
Witness the future of sand-casting separation with Qingdao Sanzhuji Technology Co., Ltd.'s Knockout Barrel. When the mold of the sand box reaches an optimal height, it gracefully descends into the simplified box. Through the dynamic dance of impact and friction, the sand mold and casting efficiently separate, guided expertly by spiral plates. The sand seamlessly transitions into the old sand system, while the casting emerges through the discharge port with precision and ease.
In the bustling arena of foundry workshops, the innovative sand-falling section spearheads the seamless separation of sand molds from castings, setting the tempo for production and the rejuvenation of old sand. The spiral guide sand-falling system, a marvel of engineering, champions the non-destructive release of castings and the meticulous recovery of old sand. Through visionary design and cutting-edge control technology, this system empowers foundries to embrace clean production, cost reduction, and heightened efficiency. With three groundbreaking achievements—optimized gravitational potential energy use, flawless casting separation, and intelligent sand regeneration—this equipment stands as the beacon of modern foundry innovation.
1. Technical principle and core component design
Harnessing the inherent properties of sand molds (compressive strength 0.8-1.2MPa) and castings (weight 50-5000kg), the system orchestrates an efficient separation through an ingenious blend of gravity impact and spiraling guidance:
Rotation and tipping mechanism:
Driven by a precise servo motor, the sand box elegantly rotates to a precise angle of 45°-75° (with an accuracy of ±0.5°). Castings and sand molds then engage the bottom plate with the calculated force of gravity acceleration (4.5-6m/s²), achieving an impressive initial separation efficiency of 98%.
The simple box's foundation is fortified with a robust AR450 wear-resistant steel plate (20mm thick), tripling its impact resilience and promising a service lifespan exceeding 5 years.
Spiral guide system:
Ingenious multi-layer involute spiral plates (pitch 300-800mm) choreograph the sand's vortex motion, while particle friction (angles 32°-35°) ensures secondary crushing, leaving a molding sand residual rate of less than 0.5kg.
The guide plate's surface boasts a high-tech laser-clad tungsten carbide coating (0.2mm thick), reducing friction to μ<0.15, ideal for diverse molding sands like resin and water glass sand.
Intelligent sorting module:
The old sand outlet, with a dual-layer vibrating screen (apertures Φ5mm/Φ0.2mm), expertly separates iron bean impurities (>5mm) and micropowder (<0.2mm), ensuring a remarkable old sand regeneration qualification rate of over 95%.
Adorned with a state-of-the-art 5 million pixel visual inspection system, the casting slide vigilantly monitors casting integrity in real time, with defective products deftly directed to the rework line.
2. Process advantages and economic benefits
Revolutionizing efficiency through energy optimization and modular design, this system stands leaps and bounds ahead of traditional vibrating sand-falling machines:
Improved separation quality:
The casting surface is cleaner than ever, with residual sand measuring less than 0.3g/cm²—a remarkable 80% reduction compared to pneumatic impact equipment, leading to a 60% reduction in subsequent cleaning costs.
With loss on ignition (LOI) of old sand controlled to ≤3.5%, the reuse rate soars to 92%, while new sand replenishment needs are halved by 50%.
Record-breaking low energy consumption:
Achieving an impressive 85% utilization of gravitational potential energy, the system’s power consumption for casting separation remains at a frugal ≤1.2kW·h per ton, translating to a 45% energy saving compared to vibrating sand-falling machines.
Experience a revolution in sound and air purity with our product, offering impact noise levels at a mere ≤78dB(A) and maintaining dust concentration at an immaculate <5mg/m³. Delight in a remarkable 70% reduction in environmental protection costs, making it both an eco-friendly and cost-effective solution.
Introducing our cutting-edge Intelligent Operation and Maintenance System, designed to enhance efficiency and reliability with state-of-the-art technology.
Our advanced predictive maintenance module is engineered to keep your operations running smoothly, vigilantly monitoring bearing temperatures (with an alert set at 85ºC) and analyzing vibration spectra in real time. This foresight allows us to preemptively address potential issues, delivering fault warnings a full 7 days in advance.
Harnessing the power of digital innovation, our Digital Twin Platform expertly simulates the ideal tipping angle across varying casting weights (from 100-3000kg). With a separation efficiency fluctuation rate of less than 2%, you can trust in consistent, optimal performance under diverse conditions.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
Specializing in the production of state-of-the-art sand casting machinery, Qingdao Sanzhuji Technology Co., Ltd. offers an impressive range of solutions, including green sand casting production lines, furan resin sand casting lines, lost foam casting lines, and coated sand steel sand buried casting lines. With 14 years of expertise and innovation since its inception, the company stands as a leader in the industry.
Contact Us
Address: Nestled in the strategic locale north of G204 National Road, Poli Town, in the bustling West Coast New Area of Qingdao, China, our factory is ideally situated to serve our global clientele.