Oil Filter Manufacturing Process: Component Production & Assembly Process

I will systematically elaborate on the complete oil filter manufacturing process, providing a detailed introduction to enable you to fully understand the manufacturing journey of our products.

• Shell: Steel plate stretching forming → Phosphating
  

  Shell steel plate stretching and forming

  

  Phosphating line cleaning

• Filter element upper and lower end caps: Steel plate stamping → Phosphating
  

  End cap steel plate stamping and forming

  

  Phosphating line cleaning

• Sealing plate: Steel plate stamping → Phosphating → Sealing plate gluing and curing
  

  Seal ring steel plate punching and forming

  

  Phosphating line cleaning

  

  Gluing and curing of the sealing plates

• Threaded cover plate: Steel plate stamping → Chamfer→ Tapping → Rust-proofing oil immersion → Spot welding
  

  Stamped threaded cover plate

  

  Drilling machine chamfer

  

  Extrusion tapping

  

  Rust-proofing oil immersion

  

  Projection welding

  

  Threaded cover plate and the sealing plate

• Processing of filter paper: Cutting, marking, pleating, and rolling → Filter paper shaping → Filter element cutting
  

  Filter paper processing

  

  Filter element shaping

  

  Filter element cutting

Step 1: Evenly apply glue on the upper and lower end caps of the filter element, with no gaps or overflow.

Step 2: Install clips on the filter paper, with the ends of the clips not exceeding ±0.5 mm.

Step 3: Fix the filter paper between the upper and lower end caps.

Step 4: Conduct temperature control and chain speed control to control the shaping degree.

Step 5: Assemble the filter element, threaded cover plate, and shell.

Step 6: Oil filter sealing

Step 7: Test the air tightness of the oil filter.

Step 8: Apply powder coating the surface of the oil filter.

Step 9: Label the oil filter.

Step 10: Install the rubber sealing ring at the bottom.