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 mounted above the sand conveying belt, this dynamic machine transforms the green sand into a loose, workable state following its mixing. This ensures a seamless and efficient production process.
Designed for the green sand casting mechanized sand recycling production line, this state-of-the-art machine effectively loosens mixed wet sand and crushes old sand post-separation, optimizing the overall process. It seamlessly integrates with the dust removal pipeline for clean operations. By tackling the agglomeration of wet sand post-mixing and old sand at drop stations, it significantly enhances the air permeability of molding sand (>80cm³/min) and the surface quality of castings. As the pivotal equipment in the sand processing system, the sand loosening machine is revolutionizing modern foundry workshops with its unmatched loosening capabilities, efficient crushing, and advanced dust removal features. This comprehensive analysis delves into how this innovative machine empowers foundries to achieve efficient regeneration and pristine sand resource production through breakthrough technological innovation, process adaptability, environmental efficiency, and intelligent control.
1. Process pain points and technological innovation
Addressing the challenges of compaction in wet sand (3-5% moisture) post-mixing and the crushing needs of old sand embedded with core bone and iron impurities, the loose sand machine achieves groundbreaking advancements with its dual-mode crushing structure and modular design:
Wet sand loosening mode:
Revolutionary rotary knife crushing system: Utilizing 304 stainless steel staggered blade groups (HRC55-60 hardness), it skillfully cuts sand blocks at 1200r/min, boasting a processing capacity of 60t/h. The resulting loosened molding sand achieves a bulk density of ≤1.4g/cm³, enhancing air permeability by an impressive 40%.
Dynamic screening module: Features a built-in Φ8mm aperture grid that synchronously separates unbroken large particles (return rate <2%), ensuring that molding sand entering the conveyor belt is uniformly consistent (particle size standard deviation <0.15mm).
Old sand crushing mode:
Hammer impact mechanism: Outfitted with high manganese steel hammer heads (impact toughness ≥120J/cm²), it expertly crushes old sand masses containing iron beans (diameter ≤20mm), achieving a crushing efficiency of 45t/h and an iron impurity separation rate exceeding 98%.
Magnetic pre-separation: A powerful permanent magnetic roller (magnetic induction strength ≥1500Gs) is strategically placed to pre-emptively extract ferromagnetic impurities, effectively reducing hammer head wear by 70%.
Intelligent switching technology:
Effortless one-button transition between wet sand and old sand processing modes via PLC control, with conversion times under 3 minutes. This flexibility suits both intermittent and continuous production line configurations.
2. Integrated solution for foundry sand processing line
The synergistic collaboration between the loose sand machine, conveyor belt, and dust removal system forms an efficient, cohesive sand processing ecosystem:
Space optimization design:
Ingeniously adopting an inverted installation structure, it stands poised above the B=800-1400mm belt conveyor, with a net height ≤1.2m, economizing 30% of vertical workshop space.
The precision-engineered standard design of inlet and outlet flanges (ISO 5211) ensures flawless, seamless connectivity with the sand mixer and old sand screening machine (connection error ±2mm).
Easy maintenance:
The innovative quick-detachable cutter head and hammer bracket design facilitate tool replacements in under 20 minutes, ensuring minimal downtime.
Gas spring-assisted observation windows and inspection doors enable solo maintenance tasks with ease, streamlining daily upkeep.
3. Core advantages and economic benefits
The loose sand machine redefines foundry sand processing standards through pioneering material innovation and intelligent control:
Wear-resistant and long-lasting design:
Our cutting-edge blade technology boasts a surface enhanced by a laser-clad tungsten carbide coating (thickness 0.3-0.5mm), dramatically amplifying its durability to an astonishing fourfold increase over conventional blades.
Experience the future of maintenance with a replaceable box lining crafted from ARQ wear-resistant steel plate (hardness HB450), slashing your annual maintenance costs by a remarkable 65%.
Advanced Energy Consumption Optimization:
Harness the power of innovation with our 55kW permanent magnet synchronous motor combined with a variable frequency drive system, achieving an impressive 25% reduction in electricity usage compared to traditional asynchronous motors.
Our revolutionary system consumes a mere ≤0.8kW·h to crush a ton of molding sand, a significant 40% decrease in power usage compared to the energy-hungry traditional roller crushers.
Superior Quality Enhancement Statistics:
Benefit from our precision engineering with a compaction rate fluctuation of loosened sand at a mere ≤2%, complemented by a reduction in the porosity defect rate of castings from 3.8% to an exceptional 0.5%.
With an impressive old sand recycling rate boosted to 95%, the addition of new sand is cut down by 60%, representing a leap towards sustainable industry practices.
Certifications
Factory Panorama
Factory Address
QINGDAO SANZHUJI
With a proud legacy spanning 14 years, Qingdao Sanzhuji Technology Co., Ltd. is at the forefront of sand casting machinery innovation. Our specialization encompasses a diverse range of cutting-edge sand casting production lines, including the green sand casting, furan resin sand casting, lost foam casting, and coated sand steel sand buried casting production lines.
Contact Us
Address: Located strategically at the North of G204 National Road in Poli Town, West Coast New Area, Qingdao, China, our premises are easily accessible and positioned for optimal operational efficiency.
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