Product Parameters
| Model |
Mating belt width:mm |
Loose wheel diameter:mm |
1# Loose Sand RPM:R/min |
2# Loose Sand RPM:R/min |
Motor speed:R/min |
Motor power:Kw |
| S355 |
500 |
480 |
682 |
800 |
1440 |
4 |
| S357 |
650 |
580 |
682 |
800 |
1440 |
7.5 |
| S358 |
800 |
580 |
573 |
679 |
1440 |
15 |
| S3510 |
1000 |
580 |
573 |
679 |
1440 |
18.5 |
Detailed Photos
Product Description
Ingeniously installed above the sand conveying belt, this cutting-edge device meticulously disintegrates the green sand into a finely loose state post-mixing, enhancing its usability and performance.
Tailored for the green sand casting mechanized sand recycling production line, this versatile tool excels in loosening mixed wet sand and crushing old sand post-separation. Crucial for dust removal pipeline docking, it tackles the challenges of wet sand agglomeration and old sand clumping, which can impair molding sand's air permeability (>80cm³/min) and casting surface quality. As a cornerstone of the sand processing system, this sand loosening machine is revolutionizing modern foundry workshops with its robust loosening, exceptional crushing, and advanced dust removal capabilities. This comprehensive analysis reveals how this machine empowers foundry companies to achieve efficient sand resource regeneration and clean production, spotlighting technological innovation, process adaptability, environmental efficiency, and smart control.
1. Process pain points and technological innovation
Addressing the compaction issues of wet sand (water content 3-5%) post-mixing and the crushing requirements for old sand (with core bone, iron bean impurities), this loose sand machine achieves groundbreaking technological advances through its dual-mode crushing structure and modular design:
Wet sand loosening mode:
The rotary knife crushing system features a 304 stainless steel staggered blade group (hardness HRC55-60), slicing through sand blocks at a remarkable speed of 1200r/min, handling a capacity of 60t/h. This process ensures the bulk density of the loosened molding sand remains ≤1.4g/cm³, significantly boosting air permeability by 40%.
Dynamic screening module: Integrated with a Φ8mm aperture grid, this module synchronously separates any unbroken large particles (return rate <2%), guaranteeing the uniformity of molding sand directed onto the conveyor belt (particle size standard deviation <0.15mm).
Old sand crushing mode:
Hammer impact mechanism: Outfitted with a high manganese steel hammer head (impact toughness ≥120J/cm²), it effectively crushes old sand conglomerates containing iron beans (diameter ≤20mm), achieving a crushing efficiency of 45t/h and an impressive iron impurity separation rate of >98%.
Magnetic pre-separation: A permanent magnetic roller (magnetic induction strength ≥1500Gs) is strategically positioned above to pre-emptively capture ferromagnetic impurities, reducing the hammer head's wear rate by a substantial 70%.
Intelligent switching technology:
Effortlessly toggle between wet sand and old sand processing modes via PLC control, with conversion times under 3 minutes. This adaptability suits both intermittent and continuous production line setups.
2. Integrated solution for foundry sand processing line
The synchronized operation of the loose sand machine, conveyor belt, and dust removal system creates a potent sand processing ecosystem, maximizing efficiency throughout.
Space optimization design:
Featuring an innovative inverted installation structure, it mounts directly above the B=800-1400mm belt conveyor, with a net height of ≤1.2m, conserving up to 30% of vertical space in the workshop.
The inlet and outlet flanges follow a standard design (ISO 5211), ensuring seamless integration with the sand mixer and old sand screening machine (with a connection error margin of ±2mm).
Easy maintenance:
The quick-detachable cutter head and hammer bracket design facilitate tool replacement in under 20 minutes, ensuring operational continuity.
Gas spring-assisted observation windows and inspection doors allow a single operator to effortlessly conduct daily maintenance tasks.
3. Core advantages and economic benefits
Through innovative materials and intelligent control, the loose sand machine delivers a transformative leap in foundry sand processing, providing substantial economic benefits and unmatched efficiency.
Innovative Wear-Resistant and Long-Lasting Design:
Engineered with precision, the blade surface boasts a laser-clad tungsten carbide coating, with a substantial thickness ranging from 0.3-0.5mm. This transformative addition remarkably extends the lifespan of the blade to an impressive four times that of standard blades.
Optimized for efficiency, the box lining features an replaceable ARQ wear-resistant steel plate with a formidable hardness of HB450, significantly slashing annual maintenance costs by an astounding 65%.
Advanced Energy Consumption Optimization:
Harnessing the power of a 55kW permanent magnet synchronous motor coupled with a cutting-edge variable frequency drive system, this innovation delivers a 25% reduction in electricity usage, outperforming conventional asynchronous motors.
With unparalleled efficiency, the power consumption for processing 1 ton of molding sand is an ultra-low ≤0.8kW·h, marking a remarkable 40% improvement over traditional roller crushers.
Exceptional Quality Improvement Metrics:
Ensuring precision, the compaction rate of loosened sand remains steady with fluctuations of just ≤2%. Meanwhile, casting porosity defect rates are impressively minimized from 3.8% down to a mere 0.5%.
Proven results show that the recycling rate of old sand has soared to an impressive 95%, effectively reducing the need for new sand by a significant 60%.
Certifications
Factory Panorama
Factory Address
QINGDAO SANZHUJI
With a prestigious history spanning 14 years, we, at Qingdao Sanzhuji Technology Co., Ltd., proudly specialize in producing top-tier sand casting machinery. Our diverse range encompasses: Green Sand Casting Production Lines, Furan Resin Sand Casting Production Lines, the innovative Lost Foam Casting Production Line, and the Coated Sand Steel Sand Buried Casting Production Line, each engineered to perfection to meet your precise casting needs.
Contact Us
Address: Nestled within the dynamic West Coast New Area of Qingdao, our state-of-the-art facilities are located at: North of G204 National Road, Poli Town, Qingdao, China. Reach out to us for unparalleled craftsmanship and service.
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