Efficient Surface Preparation Equipment for Steel Processing and Manufacturing Industries
Roller conveyor shot blasting machines are designed for continuous cleaning of steel plates, sheets, structural profiles, pipes, welded assemblies, and fabricated metal structures. The equipment effectively removes rust, mill scale, oxidation, welding residues, and other contaminants, ensuring a clean surface ready for painting, galvanizing, welding, or further processing.
Techwagonmash manufactures high-performance roller conveyor shot blasting machines engineered for steel service centers, metal fabrication plants, railway vehicle manufacturers, shipyards, bridge construction companies, pipe producers, and heavy machinery manufacturers. Our solutions combine high productivity, low operating costs, and long-term reliability to meet the demands of modern industrial production.
| 1. Blast Chamber | 5. Blast wheel |
| 2. Elevator | 6. Abrasive recovery system |
| 3. Separator | 7. Dust collection system |
| 4. Storage bin |
Main Components of the Machine
Roller Conveyor System
The roller conveyor system ensures continuous and efficient transportation of workpieces through the blasting chamber, supporting uninterrupted production processes. Its robust design allows it to handle heavy loads with ease while providing smooth and stable movement of materials. Engineered for demanding industrial environments, the system delivers reliable long-term operation, minimizes downtime, and helps maintain consistent blasting quality throughout the production cycle.
Blast Wheel
Blast wheels are the core components of shot blasting equipment, creating a high-velocity abrasive stream that effectively removes rust, scale, paint, and other contaminants from metal surfaces. Thanks to their optimized design, they ensure high blasting performance while maintaining low energy consumption. Durable wear-resistant materials provide an extended service life even under intensive operating conditions, and the simple construction allows for quick inspection, maintenance, and replacement of wear parts, reducing downtime and operating costs.
Blast Chamber
The blast chamber is the central working zone of the roller conveyor shot blasting machine, where the actual surface cleaning process takes place. It is designed to withstand extreme mechanical and abrasive loads generated by high-velocity steel shot during continuous industrial operation. The chamber housing is manufactured as a rigid welded structure with high structural strength to ensure stability under vibration, impact, and long-term cyclic loading. Inside, all surfaces exposed to abrasive flow are lined with replaceable wear-resistant protection plates.
Abrasive Recovery System
The abrasive recovery system automatically collects used abrasive material after the blasting process, removes dust, scale, and other contaminants, and returns reusable abrasive back into circulation. By maintaining a continuous supply of clean abrasive media, the system improves blasting efficiency, reduces material waste, and significantly lowers overall operating costs.
Dust Collection System
The dust collection system is a critical subsystem of the roller conveyor shot blasting machine, responsible for maintaining air cleanliness, operational safety, and stable process conditions inside the blasting chamber and the surrounding workshop environment.
During shot blasting, a significant amount of fine dust is generated. It consists of abraded rust particles, mill scale, paint residues, and microscopic fragments of the steel abrasive itself. If not effectively removed, this dust can negatively affect surface quality, accelerate wear of machine components, and create unsafe working conditions for personnel.
Why Surface Preparation Is Important
Steel products often contain contaminants such as:
- Rust
- Mill scale
- Oxidation
- Welding slag
- Oil residues
- Old paint coatings
Without proper cleaning, protective coatings may fail prematurely, resulting in corrosion, costly repairs, and reduced product lifespan.
Shot blasting is one of the most effective and economical methods of preparing steel surfaces for further treatment and corrosion protection.
Industries Served
Specifications
| Parameter | Model | ||||
|---|---|---|---|---|---|
| KD-800 | КD-1600 | КD-2600 | КD-3200 | ||
| 1. | Overall dimensions of cleaned products, mm | ||||
| width, mm | 800 | 1600 | 2600 | 3200 | |
| length, not less than, mm | 1200 | 2500 | 2500 | 2500 | |
| height, not more than, mm | 350 | 500 | 500 | 500 | |
| 2. | Rolling speed, m/min | 0.5-2.5 | 0.5-2.5 | 0.5-2.5 | 0.5-2.5 |
| 3. | Surface roughness after blasting, µm | 40-80 | |||
| 4. | ISO 8501-1 blast-cleaning grades | Sa 2.5 / Sa 3 | |||
| 5. | Number of turbines, pcs | 4 | 4 | 6 | 6 |
| 6. | Installed power of electric motors, kW | 92 | 116 | 120 | 210 |
| 7. | Equipment weight, tons | 9.5 | 27 | 30 | 42 |
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Technical Options for Equipment
1. Air Cleaning and Filtration Systems:
- Cartridge Filters, Cyclones.
- Aspiration Systems with Automatic Filter Regeneration.
2. Additional Chamber Protection:
- Additional Chamber Protection Kit (manganese steel).
3. Automation and Control:
- Integration into the plant’s control system.
- Diagnostics and Remote Monitoring.
Functional Extensions
1. Loading Systems:
- Infeed and Receiving Roller Conveyors.
- Cross-Loading Tables.
2. Sorting and Quality Control:
- Video Cameras and Surface Cleanliness Monitoring Sensors.
3. Sound and Vibration Insulation:
- Additional Soundproofing Enclosures.
- Damping Mounts or Vibration Isolators.
Service and Design Options
1. Custom Configurations and Custom Projects:
- Development of Custom Solutions for Specific Products.
- Integration into the customer’s production line.
2. Commissioning and personnel training.
3. Consumables and spare parts:
- In stock, delivered on schedule.
4. Service:
- Service contracts (warranty and post-warranty service).
- Equipment condition audit and scheduled maintenance.
Photo
Articles
- Shot blasting equipment: purpose, types, characteristics
- Overview of popular shot blasting equipment models
- Removal of abrasive residue and dust after shot blasting | Surface preparation for painting
- Evaluation of dust content of steel surfaces before painting – ISO 8502-3
- Preservation lines: shot blasting and painting in one solution
