Bridge slot perforation
Strong and durable solutions for drying floors and ventilation
Bridge slot perforation offers a heavy-duty solution designed for efficient drying and ventilation of bulk materials.
Ideal for drying floors and storage systems, especially in agriculture and biomass. Bridge slot sheets can be customised to meet your exact requirements.
Key benefits of bridge slot perforation
- Optimised air flow: Provides high ventilation efficiency, essential for drying floors and moisture-sensitive materials like grain, seed, and biomass.
- High load capacity: With the right support frame, the robust sheet thickness withstands heavy vehicles, ideal for drive-on applications.
- Custom-engineered durability: Manufactured with thick material profiles and fine openings for long service life in demanding environments.
- Precise moisture control: Variable open areas tailored to your needs help prevent spoilage and maintain ideal storage conditions.
Why choose RMIG Solutions?
With decades of experience in agriculture, biomass, and industrial applications, we understand what it takes to design and manufacture bridge slot perforation that meets both technical and operational requirements.
Our team works closely with you to design and deliver a solution tailored to your exact specifications, covering material type and bridge slot variant, sheet thickness and airflow requirements.
What you get:
- Production according to your measurements in different thicknesses and gauges
- Drilling of mounting holes and bending
- Additional or replacement delivery of your existing ventilation panels
- Items in stock with short delivery times
- On-site technical advice and accompanied plant reference visits
- Access to RMIG Solutions network of partner companies for base frames and assembly
Application examples
Agricultural storage systems
Supports drying floors in silos, barns, and trailers, with the strength to handle bulk loads and heavy machinery, ideal for efficient agricultural storage.
Grain and seed drying
Provides consistent air flow and moisture control for crops such as wheat, barley, maize, rapeseed, and grass seed, ensuring safe storage and reduced spoilage risk.
Biomass and woodchip drying
Used in drying containers and drive-on floors for materials like woodchips and logs, improving boiler efficiency and energy performance.
Well filters
Bridge slot screens are ideal for well filtration systems, combining fine openings with thick sheets for high durability in demanding underground conditions.
Herbs and tea processing
Delivers gentle, uniform air flow essential for drying light and delicate materials, helping preserve quality, aroma and moisture balance.
Technical information - bridge slot perforation
Our bridge slot screens are specially designed with variable open areas, determined by the depth of the embossing. RMIG Solutions delivers precise, consistent perforation, even in thick, heavy-duty sheets.
The embossing depth influences ventilation levels, allowing fine-tuning of airflow based on your needs. The combination of heavy sheet thickness and very fine openings provides great durability and ventilation performance.
Open area
Bridge slot perforation allows consistent, free flowing ventilation due to its high open area.
The specific measurement of the bridge slot perforation openings is measured by the embossing depth 'h', while 'S1' shows the screen thickness and 'a1' indicates basic length of the bridge.
An embossed depth of 1.5 mm (suitable for e.g. rape seed) provides an open area of 3.7% for ventilation. Another example is sheets with an embossed depth of 3.0 mm, giving an open area of 9.1%.
Examples of bridge slot patterns with airflow > 20%:
- BRG7x20Z29.5x55
- BRG5x20Z22.6x45
Examples of bridge slot patterns with airflow of 7-8%:
- BRG12.5x11Z51x45
Materials
Bridge slot screens are typically produced in steel, but are also available in other materials.
In moist storage environments, there is a risk of fungus infestation and self-heating. To counter this, bridge slot sheets can be manufactured in stainless steel, providing free-flowing ventilation in a material that is highly resistant to corrosion and rust.
Bridge slot screens in stock
Ready for quick delivery
If you need bridge slot screens urgently, we have the following items available in stock:
Bridge slot perforation 12.5 x 11 mm:
- Sheet thickness: 3 or 5 mm
- Sheet dimensions: 1250 mm x 2500 mm
- Material: Steel S235G2 black
- Embossing depth: 2.5 mm
- Open area: 6.5%
These screens are ideal for drying applications such as wood chips, logs, grain and corn.