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Why Leading Aluminum Extruders Are Switching to Annilte PBO Kevlar Endless Felt Belt


If you run an aluminum profile extrusion line, you know the pain: felt belt streaks, frequent splice failures, and belt replacement every few weeks. These issues not only ruin surface quality but also kill productivity.

Now meet Annilte PBO Kevlar Endless Felt Belt — engineered specifically for high-speed, high-temperature aluminum profile handling.

What Makes PBO + Kevlar Different?

Most standard felt belts use Nomex or polyester. They break down above 200°C.
Annilte’s belt combines PBO (poly-p-phenylene benzobisoxazole) and Kevlar fibers:

  • PBO – 5x stronger than steel, stable up to 350°C
  • Kevlar – cut-resistant and flexible
  • Endless weaving – no splice, no bump, no mark

Industry Pain Points Solved

Pain Point Annilte Solution
Splice marks on soft aluminum Endless woven – zero splice line
Belt melting or shrinking PBO handles 300°C+ continuous
Frequent belt changes 2x longer service life
Edge fraying Kevlar reinforcement
Oil/water absorption Low-absorbency design

Why Choose Annilte?

  • 12+ years in high-performance endless belts
  • Factory direct – lower cost than European brands
  • Free sizing & customization
  • 5–7 day production lead time
  • Samples available for line testing