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
Nestled gracefully above the sand conveying belt, this innovative blade aerator transforms the green sand into a state of perfect looseness post-mixing.
In the realm of green sand casting, our state-of-the-art blade aerator excels within mechanized sand recycling production lines. It effortlessly loosens mixed wet sand and deftly crushes old sand post-separation. By connecting seamlessly with dust removal pipelines, it optimizes air permeability (>80cm³/min) and elevates the casting's surface quality. As a pivotal component of the sand processing system, this sand loosening marvel is redefining the modern foundry's sand processing landscape with unmatched loosening prowess, exceptional crushing efficiency, and cutting-edge dust removal technology. Dive into a detailed exploration of how this machinery empowers foundry enterprises in achieving remarkable sand resource regeneration and eco-friendly clean production, driven by technological innovation, adaptability, environmental protection, and intelligent control.
1. Process Pain Points and Technological Innovation
Addressing the challenges of wet sand compaction (water content 3-5%) and the need for crushing old sand (with core bone and iron bean impurities), our loose sand machine achieves monumental breakthroughs with its dual-mode crushing structure and modular design:
A. Wet Sand Loosening Mode:
Revolutionary Rotary Knife Crushing System: With 304 stainless steel staggered blade assembly (hardness HRC55-60) operating at 1200r/min, it slices through sand blocks, boasting a processing capacity of 60t/h. The molding sand's bulk density remains at ≤1.4g/cm³ with air permeability enhanced by 40%.
Versatile Dynamic Screening Module: Features a built-in Φ8mm aperture grid for synchronous separation of unbroken large particles (return rate <2%), ensuring uniformity of molding sand fed onto the conveyor belt (particle size standard deviation <0.15mm).
B. Old Sand Crushing Mode:
Ultimate Hammer Impact Mechanism: Outfitted with a high manganese steel hammer head (impact toughness ≥120J/cm²), it crushes old sand clusters containing iron beans (diameter ≤20mm) with a crushing efficiency of 45t/h and an iron impurity separation rate exceeding 98%.
Magnetic Pre-Separation Excellence: A top-mounted permanent magnetic roller (magnetic induction strength ≥1500Gs) efficiently captures ferromagnetic impurities, decreasing the hammer head's wear rate by 70%.
C. Intelligent Switching Technology:
Effortlessly switch between wet sand and old sand processing modes using PLC control, with conversion times under 3 minutes, seamlessly adapting to both intermittent and continuous production line layouts.
2. Integrated Solution for Foundry Sand Processing Line
The harmonious synergy of the loose sand machine, conveyor belt, and dust removal system creates an unparalleled, efficient sand processing ecosystem:
Space-Saving Optimization Design:
Innovatively adopting an inverted installation structure, it majestically stands above the B=800-1400mm belt conveyor, with a net height of ≤1.2m, conserving 30% of vertical space in the workshop.
Standardized inlet and outlet flanges (ISO 5211) facilitate seamless connections with the sand mixer and old sand screening machine (connection error ±2mm).
Effortless Maintenance:
Ingenious quick-detachable cutter head and hammer bracket design ensure that tool replacement is swift, taking less than 20 minutes.
With gas spring-assisted observation windows and inspection doors, a single individual can effortlessly perform daily maintenance tasks.
3. Core Advantages and Economic Benefits
Our loose sand machine propels a transformative leap in foundry sand processing, driven by material innovation and intelligent controls:
Durable and Wear-Resistant Design:
The innovative blade surface is enhanced with a laser-applied tungsten carbide coating, with a precision thickness of 0.3-0.5mm. This remarkable technology extends the blade's lifespan to an astonishing four times that of conventional blades, ensuring durability and superior performance.
Ingeniously designed, the box lining can be upgraded with a robust ARQ wear-resistant steel plate, boasting a formidable hardness of HB450. This strategic enhancement contributes to an impressive 65% reduction in annual maintenance costs, offering significant savings and reliability.
Energy consumption optimization: Effortlessly efficient, our systems are designed to minimize energy usage while maximizing performance.
The state-of-the-art 55kW permanent magnet synchronous motor combined with a variable frequency drive system delivers a remarkable 25% reduction in electricity consumption compared to traditional asynchronous motors. This cutting-edge technology ensures eco-friendly and cost-effective operation.
For outstanding energy efficiency, the power consumption for crushing each ton of molding sand is impressively maintained at ≤0.8kW·h, a significant 40% lower than traditional roller crushers, setting a new standard for sustainable performance.
Quality improvement data: Elevate your production standards with our groundbreaking quality enhancements designed for excellence.
Achieving precision in quality, the compaction rate of loosened sand remains consistently within ≤2%, while dramatically reducing the porosity defect rate of castings from 3.8% to an impressive 0.5%. This transformation signifies a major leap in casting quality and reliability.
Revolutionizing efficiency, the recycling rate of old sand is elevated to a remarkable 95%, while the addition of new sand is slashed by an impressive 60%, promoting sustainability and resource optimization.
Certifications
Factory Panorama

Factory Address
QINGDAO SANZHUJI
With an impressive legacy spanning 14 remarkable years, Qingdao Sanzhuji Technology Co., Ltd. has honed its expertise in the art of sand casting machinery manufacturing. Our specialization encompasses a diverse array of state-of-the-art casting production lines, including the innovative green sand casting production line, the advanced furan resin sand casting production line, the efficient lost foam casting production line, and the sophisticated coated sand steel sand buried casting production line. Each product is a testament to our unwavering commitment to quality and innovation.
Contact Us
Address: Nestled in the strategic location of North of G204 National Road, Poli Town, West Coast New Area, Qingdao, China, our factory is easily accessible for your convenience.