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 to a designated height, the beauty of gravity comes into play, letting it gracefully descend to the base of the simplified box. Here, the extraordinary interplay of impact and friction occurs, leading to the seamless separation of the sand mold and casting. They glide effortlessly to their designated destinations: the casting exits via the discharge port, while the sand finds its way to the old sand system.
In the bustling sand-falling section of the foundry workshop, the pivotal task of seamlessly separating sand molds from castings holds the key to maintaining a smooth production rhythm and ensuring the pristine quality of regenerated old sand. Thanks to the groundbreaking design of the spiral guide sand-falling system within the sand box, we are witnessing a phenomenal dual achievement: the non-destructive separation of castings and the precise recovery of old sand. This is brought to life through an inventive structural design coupled with cutting-edge intelligent control technology. This comprehensive exploration delves into the wonders of how this advanced equipment empowers foundry companies to not only achieve immaculate production but also to slash costs and elevate efficiency. With its trio of breakthroughs – optimized use of gravitational potential energy, flawless casting separation, and the intelligent recovery of used sand – this equipment stands as a beacon of innovation, transforming modern foundries with its revolutionary solution.
1. Technical principle and core component design
Rooted in the foundational understanding of the physical properties of sand molds (compressive strength 0.8-1.2MPa) and castings (weight 50-5000kg), the system orchestrates an efficient separation by harmoniously blending the forces of gravity impact with the precision of spiral guidance:
Rotation and tipping mechanism:
Driven meticulously by a servo motor, the sand box rotates to a precise angle between 45° and 75° (with a minimal error of ±0.5°). This motion enables the castings and sand molds to descend and impact the bottom plate of the simplified box, propelled by gravity acceleration (4.5-6m/s²), ensuring an astounding initial separation efficiency of 98%.
The foundation of the simple box is fortified with AR450 wear-resistant steel plate (a robust thickness of 20mm), tripling its impact resistance and guaranteeing a remarkable service life exceeding five years.
Spiral guide system:
Ingeniously designed, the multi-layer involute spiral plates (pitch 300-800mm) usher the sand flow into a mesmerizing vortex motion, facilitating secondary crushing through inter-particle friction (friction angle 32°-35°), achieving a molding sand residual rate of under 0.5kg.
The guide plate's surface is adorned with a laser-clad tungsten carbide coating (a sleek thickness of 0.2mm), dramatically reducing the friction coefficient to μ<0.15, making it exceptionally suited for diverse molding sands such as resin sand and water glass sand.
Intelligent sorting module:
At the core of efficiency, the old sand outlet boasts a dual-layer vibrating screen (apertures Φ5mm/Φ0.2mm), adeptly separating iron bean impurities (>5mm) from micro powder (<0.2mm), culminating in a remarkable old sand regeneration qualified rate exceeding 95%.
Equipped with a state-of-the-art visual inspection system (boasting 5 million pixels), the casting slide meticulously identifies the integrity of castings in real time, seamlessly diverting defective products to the rework line.
2. Process advantages and economic benefits
In a monumental leap forward, compared to conventional vibrating sand-falling machines, this system achieves unrivaled efficiency through astute energy optimization and modular design:
Improved separation quality:
The casting surface boasts a mere 0.3g/cm² of residual sand, a staggering 80% reduction compared to pneumatic impact equipment, leading to a 60% decrease in subsequent cleaning costs.
With the loss on ignition (LOI) of old sand meticulously maintained at ≤3.5%, the reuse rate surges to 92%, slashing the need for new sand replenishment by an impressive 50%.
Record-breaking low energy consumption:
Harnessing gravitational potential energy with an astonishing efficiency of 85%, the power consumption per ton of casting separation plummets to ≤1.2kW·h, an extraordinary energy saving of 45% compared to traditional vibrating sand-falling machines.
Experience a serene working environment with our product, as the impact noise remains comfortably at or below ≤78dB(A). Breathe easy with dust concentrations meticulously maintained at less than <5mg/m³, while enjoying a remarkable 70% reduction in environmental protection costs, making it both eco-friendly and cost-effective.
Welcome to the future of machinery management with our cutting-edge Intelligent Operation and Maintenance System:
Our state-of-the-art predictive maintenance module is engineered to meticulously monitor the bearing temperature, with a precise alarm threshold set at a reliable 85ºC. Additionally, it diligently tracks the vibration spectrum in real-time, ensuring that you receive advance fault warnings a full 7 days ahead, providing unparalleled peace of mind.
Harness the power of our digital twin platform, expertly simulating the optimal tipping angle tailored to varying casting weights, ranging from 100 to 3000kg. Revel in the precision it offers, with the separation efficiency fluctuation rate astonishingly kept under 2%, ensuring peak performance at all times.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
For over 14 years, Qingdao Sanzhuji Technology Co., Ltd. has excelled in the art of engineering precision with its specialized production of state-of-the-art sand casting machinery. Our extensive lineup includes the sophisticated green sand casting production lines, advanced furan resin sand casting lines, innovative lost foam casting lines, and highly efficient coated sand steel sand buried casting production systems. Each product reflects a legacy of quality and innovation, tailored to meet the evolving needs of the casting industry.
Contact Us
Address: North of G204 National Road, Poli Town, West Coast New Area, Qingdao, China