QAT2640 Sand Blasting Room for Large Steel Structures
Project Background
Our customer, a manufacturer of extra-large steel structures, required a surface preparation solution capable of handling workpieces up to 17 meters in length while maintaining consistent Sa2.0–Sa2.5 cleanliness levels.
In heavy steel fabrication and large welded assemblies, surface preparation is not just a preliminary step—it directly influences coating adhesion, corrosion resistance, and long-term maintenance cost.
(Industry reference: Materials Performance, surface preparation impact studies)
To meet these operational and durability requirements, we engineered the QAT2640 sand blasting room—a fully enclosed system designed specifically for large-scale industrial applications, where process stability, abrasive recovery efficiency, and controlled airflow are essential to achieving repeatable results.
Why a Sand Blasting Room
Some users initially consider a smaller sand blasting booth, but these are generally built for compact parts or short-cycle manual blasting.
When the workpiece size, weight, and coating performance expectations rise, a sand blasting room becomes the more appropriate configuration.
sand blasting room vs sand blasting booth
Requirement Aspect | Sand Blasting Room | Sand Blasting Booth |
Workpiece Size Capability | Medium to extra-large components | Small to medium parts |
Material Handling Method | Rail car, overhead crane, or platform-assisted maneuvering | Primarily manual handling or forklift-based |
Surface Consistency and Throughput | Stable, repeatable results suitable for continuous or batch production | Performance varies depending on operator technique and experience |
In practical terms, for steel structures and equipment frame assemblies, the room-scale configuration provides more reliable production rhythm and more predictable coating service life.
System Configuration (QAT2640)
Workpiece Handling Capacity: 17,000 × 3,500 × 4,000 mm
Loading System: 20-ton powered rail car with auxiliary transfer trolley
Target Surface Cleanliness: Sa2.0–Sa2.5 (ISO 8501-1)
Dust Emission Level: < 10 mg/m³ (suitable for indoor installation and compliance-controlled environments)
Operator Access: Dual 3D lifting platforms for full-coverage blasting
Abrasive Recovery Efficiency: ≥ 99.5%, utilizing a full-curtain air separation system
Each configuration choice was made to support long-term reliability, operator usability, and predictable operating costs over the service life of the system.
Abrasive Recycling: The Real Cost Lever
The QAT2640 system applies a full abrasive recycling process: scraper floor → screw conveyor → bucket elevator → full-curtain air separator.
This configuration continuously removes dust and fractured particles, maintaining abrasive sharpness and stable grain size distribution.
This directly influences three cost-related performance indicators:
Cost Factor | Outcome |
Abrasive Consumption | Significantly reduced |
Nozzle & Wear Parts Life | Longer service life due to slower wear |
Surface Roughness Consistency | Maintained over continuous operation |
Industry best practices support the same conclusion: abrasive recycling efficiency has a measurable impact on both operating cost and surface quality stability. Reference (technical field case discussion)：CoatingsPro Magazine
Application Scenarios
This sand blasting room configuration is widely applied in:
Steel structure fabrication workshops
Mining and conveying equipment manufacturing
Marine and offshore structural components
Construction machinery frame production
Heavy equipment refurbishment and service depots
In these environments, system stability and repeatability are often more important than nominal parameter ratings alone.
The QAT2640 was designed specifically to support sustained, predictable production performance.
ATHI support
If you can provide:
Maximum workpiece dimensions
Target daily throughput or takt time
Available workshop layout
UNLOCK your Customer Sand Blasting Room
Further Reading & Solution Support
Explore more sand blasting room solutions:
https://athi-group.com/products/sand-blasting-room/
Browse the full range of surface preparation and blasting equipment:
https://athi-group.com/product-category/sand-blasting-machine/
See additional project installations and application cases:
https://athi-group.com/projects/
Contact: support@athi-group.com
Website: https://athi-group.com
