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AF478-020 Air Filter for Diesel Engines | Bowei Filter Factory
The AF478-020 air filter is designed for large diesel engines and generator sets that operate under continuous, high-load conditions.
At our Bowei Filter Factory, we produce this filter with strengthened metal mesh, uniform pleated paper, and durable end-cap construction to deliver stable airflow and long service life.
Because this model has a large diameter (350 mm) and a tall height (580 mm), we apply higher mesh tension and deeper pleat structure to prevent deformation under strong suction — this is one of the details our factory strictly controls.
Model: AF478-020
Outer Diameter: 350 mm
Height: 580 mm
Inner Diameter: 190 mm
Filter Media: High-efficiency pleated cellulose
Support Mesh: Reinforced expanded metal
End Cap: Industrial-grade sealing design
Type: Primary air filter
Manufacturing Quality at Bowei
Inside our factory, every AF478-020 undergoes:
Automated pleating with consistent depth
Metal mesh wrapping with tight tension control
Proper bonding and curing for end-cap strength
Airflow resistance testing
Manual QC inspection before packing
We always focus on durability because large diesel engines will quickly collapse weak filters.
Our AF478-020 is built specifically to avoid that problem.
Application Range
This air filter is suitable for:
Diesel generator sets
Construction & mining machinery
Industrial power equipment
Air compressor systems
High-dust or long-hour operating environments
If you work with generator maintenance, rental fleets, or OEM replacement, we can support private label and bulk supply directly from our Bowei Filter Factory.
For distributor pricing, OEM customization, or bulk supply of AF478-020, contact our Bowei Filter Factory anytime.
