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Agriculture Equipment

  • CBD.SEALS
  • Agriculture Equipment

    • Seals in the field of agricultural equipment are key components that ensure the efficient and reliable operation of agricultural machinery under various operating conditions. Agricultural machinery includes tractors, harvesters, seeders, irrigation equipment, etc., which work under different soil conditions, climatic environments and operating intensity.

    Types of seals

    Static seals: used for sealing between fixed parts, such as oil tank cover, hydraulic cylinder cover and so on.

    Dynamic seals: used for sealing between relatively moving parts, such as pistons and cylinders, shafts and bearings.

    Rotary seals: specially used for sealing rotating shafts, such as the sealing of transmission shafts.

     

    Material selection

    Rubber seals: such as nitrile rubber (NBR), silicone rubber (VMQ), polyurethane (PU), etc., with good elasticity and oil resistance.

    Metal seals: such as stainless steel, copper, aluminum, etc., suitable for high temperature and high pressure environment.

    Composite seals: combining the advantages of metal and rubber, such as metal-coated rubber, filled polytetrafluoroethylene (PTFE), etc.

    Design requirements

    Abrasion resistance: agricultural machinery may encounter gravel, mud, etc. during operation, so the seals need to have good abrasion resistance.

    Temperature resistance: able to maintain performance in different seasons of temperature change, from cold winter to hot summer.

    Chemical resistance: able to resist the corrosion of fuels, lubricants, pesticides and other chemicals used in agricultural machinery.

    Pressure resistance: Able to maintain a seal in high-pressure environments such as hydraulic systems.

    Reliability: Within the design life, the seal must maintain its function without leakage.

    Manufacturing process

    Molding: applicable to the manufacture of rubber and certain composite seals.

    Machining: applicable to the manufacture of metal seals.

    Injection molding: applicable to the manufacture of certain plastic seals.

    Testing and verification

    Leakage testing: Leakage testing through media such as water or oil to ensure that the seals are leak-free.

    Environmental testing: Seal performance is tested in simulated agricultural operating environments such as mud, sand and dust.

    Life test: Evaluate the service life of the seals through accelerated aging test.

    Application examples

    Tractor hydraulic system seals: Ensure the hydraulic system works properly under high pressure without leakage.

    Harvester blade seals: prevent soil and crop residue from entering the interior of the machine and affecting blade movement.

    Seal for planter drive shaft: Protect the drive shaft from soil and moisture erosion, ensure transmission efficiency.