Schematic 3D view; not to scale.
AirScrape
Contactless skirt sealing system
AirScrape is a skirt sealing system that hangs beside the belt without touching it. It draws in outside air and keeps fine material on the belt.
- No edge contact: the belt edge is not worn by friction
- Air suction: fine material and dust stay on the belt
- Gap-free sealing: works continuously along the belt edge
- Place on the line
- Loading point
- Recommended for
- 10 industries (of 14)
- Datasheet
- Request with the short form
Overview
What is AirScrape?
AirScrape is a skirt sealing system that hangs beside the conveyor belt without touching it. It works at the loading and transfer points, where material is delivered onto the belt. At these points, dust escaping from the belt edge and spilled material soil the working area and cause product loss.
A purpose-designed arrangement draws outside air inwards and creates suction. This suction effect increases with belt movement and keeps fine dust particles inside the conveyor section. Coarse material pushed outwards is directed back to the centre of the belt. Hardened steel blades reduce edge wear, and the system provides continuous, gap-free sealing along the belt edge.
Because AirScrape does not touch the belt, there is no friction at the belt edge: the edge does not wear, and the belt is not dragged by a rubbing seal. The system adjusts lengthwise and crosswise, so it can be adapted to different belt widths and plant requirements. We install AirScrape as part of a dust suppression project, together with our site survey and installation services.
Features
Key features
Contactless, floating design
AirScrape hangs beside the belt without touching it, so the belt surface and edge are not worn by friction.
Air suction
The system draws outside air in to create suction; because the suction grows with belt speed, fine dust stays inside the conveyor section.
Material guidance
Coarse material pushed outwards is directed to the centre of the belt, which reduces spillage over the edge.
Hardened steel blades
The blades are made of hardened steel, which reduces edge wear.
Gap-free sealing
The sealing runs continuously along the belt edge, leaving no gap for dust and fine material to escape.
Lengthwise and crosswise adjustment
The system adjusts lengthwise and crosswise, so the same product can be adapted to different belt widths and plant requirements.
How does it work?
- Air intakeThe system draws outside air towards the belt.
- Suction effectThe suction effect grows with belt speed.
- Material retained on the beltFine material stays on the belt; coarse material is directed to the centre.
Benefits
- Effective with fine and coarse material
- Reduced dust emission
- Prevents belt damage caused by edge contact
- Reduced edge wear thanks to hardened steel blades
- No friction at the edge: the belt is not dragged by a rubbing seal
- Reduced product loss
- Continuous, gap-free skirt sealing
- Easy installation
- Lower maintenance and replacement costs
- A cleaner, safer working area, as dust and spillage at transfer points are reduced
Applications
Loading and transfer points
AirScrape reduces dust generation and material spillage where material is delivered onto the belt.
Cement plants
In cement production, dust is generated particularly at transfer points. AirScrape is used in these plants to reduce material loss and dust emission.
Dust suppression projects
AirScrape installation is planned as part of a dust suppression project, together with a site survey and on-site installation.
Recommended for
Used together with
Technical information
- Operating principle
- Contactless air suction
- Blade material
- Hardened steel
- Adjustment
- Lengthwise and crosswise
- Belt width
- Adaptable to different belt widths
- Position
- Loading and transfer points
Place on the line
Loading point
Dust, spillage and impact damage occur where material lands on the belt.
Related problems
Application video
Supporting services
Frequently asked questions
For questions specific to your line, you can contact our technical team.
What is AirScrape?
Does AirScrape fit different belt widths?
Does AirScrape touch the belt?
Does AirScrape's suction depend on belt speed?
Is AirScrape also effective with coarse material?
How is AirScrape installed?
Where on a conveyor line is AirScrape used?
Which problems does AirScrape address?
AirScrape is recommended for these problems:
- Dust: Fine material spreading at the transfer point
- Material spillage: Material leaving the belt at the loading point
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