Customized nylon (polyamide) dust rings - high intensity operating environments

Nylon (polyamide) dust rings in theelectrical power,metallurgy,minerals, steel, construction, machinery and other industries, because of its high strength, abrasion resistance, chemical resistance and lightweight characteristics, is widely used in harsh environments sealing protection. The following are its specific role and industry application characteristics:

1. Electricity industry

• corresponds English -ity, -ism, -ization::
  • Used for dust sealing of large generator and wind turbine bearings to prevent sand, dust and moisture intrusion leading to insulation failure.
  • Transformer bushings are sealed to resist UV aging.
• dominance::
  • The high mechanical strength of nylon can withstand equipment vibration and long-term loads.
  • Arc resistance superior to rubber, suitable for high-voltage environments (e.g., auxiliary seals for insulating parts).

2. Chemical industry

• corresponds English -ity, -ism, -ization::
  • Seal the stirring shaft of reaction kettle and centrifugal pump shaft to prevent the intrusion of acid and alkali media and particles.
  • Replaces metal dust rings to avoid electrochemical reactions with corrosive substances.
• dominance::
  • Chemical resistance: PA6 or PA66 is resistant to weak acids, weak bases and some organic solvents (modification type needs to be selected according to the medium).
  • Lightweight to reduce inertia loads on rotating parts.

3. Mineral industry

• corresponds English -ity, -ism, -ization::
  • Protects bearings and hydraulic cylinders of large crushers, mining truck suspension systems against high concentrations of dust and mud.
• dominance::
  • Excellent abrasion resistance (low coefficient of friction of nylon.Self-lubricating(good sex), the life span is 2~3 times that of rubber.
  • It can be filled with glass fiber (PA-GF) to enhance impact resistance and adapt to ore collision conditions.

4. Steel industry

• corresponds English -ity, -ism, -ization::
  • Dust seals for high temperature mill roll bearings, blocking iron oxide and cooling water.
  • Splash seals for continuous casting machine rails.
• dominance::
  • High temperature modified nylon (such as PA46) can withstand 150~180℃ for a short period of time.
  • No jamming due to thermal expansion compared to metal dust rings.

5. Construction industry

• corresponds English -ity, -ism, -ization::
  • Dustproofing of hydraulic cylinders of construction machinery (e.g. shield machine, concrete pump truck) to prevent cement mortar from curing and clogging.
  • Sand sealing of tower crane slewing bearings.
• dominance::
  • Nylon Dust RingCan be designed as a split structure for easy replacement of large equipment on site.
  • Strong resistance to compression deformation and long-term maintenance of sealing preload.

6. Machinery industry

• corresponds English -ity, -ism, -ization::
  • Dustproofing of heavy machine tool guideways and drive shafts to reduce metal chip intrusion.
  • Anti-fouling protection of linear modules for automation equipment.
• dominance::
  • High accuracy, precision fit to metal parts (tolerances up to class IT7).
  • Low noise, suitable for precision machinery.