Fiber Shedding & Contamination Prevention: Conventional glass fiber media can shed fine glass particles into sensitive industrial ovens. This 46mm synthetic filter utilizes imported/specially treated heat-resistant synthetic fiber media that eliminates fiber breakage while maintaining full G3 filtration efficiency at 300°C.
Deep-Pocket Dust Holding Capacity: The extended 46mm frame depth allows for thicker media loading, delivering significantly higher dust-holding capacity and longer operational lifecycles compared to thinner 21mm filters.
Energy-Efficient Low Resistance: Maintains a low initial resistance of 40Pa at rated airflow. This minimizes fan motor stress, preserves thermal uniformity, and lowers total energy consumption across industrial drying cabinets.
Need This Specification in Bulk?
We offer flexible OEM/ODM manufacturing to match your exact dimension and efficiency requirements. Contact our team for a fast quote or to verify compatibility with a free test sample.
Filter Media: Advanced 300°C heat-resistant synthetic fiber media. Highly durable with high mechanical strength, it will not melt, carbonize, or embrittle under continuous thermal cycling.
Rigid Outer Frame: Heavy-duty 46mm galvanized iron or aluminum alloy frame with reinforced corner joints. Built to resist severe thermal shock and repeated high-low temperature cycles without structural distortion.
Dual-Mesh Support Lattice: Reinforced with expanded aluminum alloy face grids on both air-entry and air-exit sides, ensuring absolute media rigidity and zero air bypass under high static pressure.
| Parameter | Value / Specification |
| Filter Grade | G3 (EN779) / ISO Coarse |
| Media Material | 300°C Heat-Resistant Synthetic Fiber |
| Frame Material | Galvanized Iron / Aluminum Alloy Frame |
| Standard Depth | 46 mm |
| Max Operating Temp | 300 °C (572 °F) Continuous |
| Initial Resistance | 40 Pa |
| Support Mesh | Double-sided Aluminum Mesh Grids |
| Airflow Capacity | Up to 4200 m³/h (depending on size) |
Fully customizable specifications available. For detailed technical data, please 【visit the product page】 or 【reach out to our technical team】directly.
Working Principle: Designed for high-flow recirculating oven loops. As hot air passes through the 46mm synthetic media bed, airborne dust, scale, and coarse contaminants are captured throughout the depth of the synthetic fibers. The rigid frame prevents perimeter air leakage.
Application Environment: Ideal for industrial drying ovens, powder coating curing systems, electronic component baking cabinets, pharmaceutical sterilizing ovens, and heavy-duty thermal processing equipment requiring clean air circulation up to 300°C.
Inspection Protocol: Conduct bi-weekly differential pressure readings and visual inspections during planned oven shutdowns.
Service Life: Expected operational lifetime ranges between 4 to 8 months under standard industrial oven conditions, thanks to its 46mm deep dust-holding capacity.
Replacement Trigger: Replace when final resistance reaches 120–150 Pa or when temperature variance inside the drying chamber indicates reduced airflow circulation.
Frequently Asked Questions About G3 Industrial Oven Air Filters
Q: Why choose synthetic fiber over glass fiber for industrial ovens?
A: Unlike standard fiberglass that can become brittle and release airborne glass fragments under high heat, our 300°C heat-resistant synthetic media guarantees zero fiber shedding and zero off-gassing. Its high mechanical tensile strength and superior vibration resistance make it the ideal G3 air filter for processes where glass particle contamination cannot be tolerated.
Q2: What are the main benefits of a 46mm frame depth compared to 21mm?
A: The 46mm extended frame allows for a thicker, higher-density synthetic media bed. This provides a significantly higher dust-holding capacity and extends operational replacement intervals, reducing unplanned maintenance shutdowns and operating costs compared to standard 21mm pre-filters.
Q3: How does the metal frame maintain an airtight seal during high-temperature thermal expansion?
A: The filter is engineered with a high-rigidity metal frame (aluminum or galvanized steel) featuring reinforced corner joints. This robust structure accommodates cyclic thermal expansion and contraction without warping, maintaining a zero-leak airtight seal within oven card slots.
Q4: Can this 46mm high-temp synthetic filter withstand rapid heating and cooling cycles?
A: Yes, absolutely. Both the specialized synthetic media and the structural metal frame are built to resist extreme thermal shock and rapid thermal cycling up to 300°C without cracking, shrinking, or losing structural shape.
Q5: Is this synthetic oven filter compliant with food processing and pharmaceutical cleanroom standards?
A: Yes. Because the synthetic media is non-shedding, chemically inert, and non-volatile (emitting zero fumes or oil vapors), it fully satisfies the stringent cleanliness and purity requirements for pharmaceutical drying tunnels, food baking ovens, and electronic component curing lines.
