Conveyor Belt Cover Compounds Selection

In-Depth Guide to Conveyor Belt Cover Selection


The selection of cover rubber for conveyor belts is critical for ensuring optimal performance, durability, and safety. This guide delves into the specifics of cover grades, providing a comprehensive understanding of their applications and benefits.

Detailed Overview of Cover Grades

  1. General Purpose Grades (M, N)
    • Suitable for most industries with moderate conveying requirements.
    • Provides good resistance to abrasion and minor impacts.
  2. Abrasion-Resistant Grades (A, X, Y, Z)
    • Ideal for environments with sharp, abrasive materials.
    • Offers enhanced resistance to wear and tear, prolonging belt life.
  3. Heat-Resistant Grades (T1 to T5)
    • Designed to withstand high temperatures, preventing belt degradation.
    • Each grade corresponds to a specific temperature range, from 100°C to 300°C.
  4. Oil-Resistant Grades (OR, MOR, HOR)
    • Prevents swelling and deterioration due to oil exposure.
    • Essential for industries processing or transporting oily materials.
  5. Fire-Resistant Grades (K, S)
    • Provides critical safety in fire-prone environments.
    • Reduces the risk of fire propagation along the conveyor system.
  6. Chemical-Resistant Grades (C)
    • Offers protection against corrosive substances.
    • Suitable for chemical processing or exposure to aggressive materials.

Key Selection Factors

  • Material Characteristics: Understand the physical and chemical properties of the conveyed material.
  • Operational Environment: Assess the temperature, chemical exposure, and fire risks.
  • Cost-Efficiency: Consider the balance between upfront costs and potential savings in maintenance and longevity.

Detailed Tables for Cover Grade Selection

Table 1: General Purpose and Abrasion-Resistant Grades
GradeApplicationTensile StrengthAbrasion LossRecommended Industries
MGeneral Purpose18 MPa250 mm³Logistics, packaging
NGeneral Purpose17 MPa200 mm³Manufacturing, assembly lines
AHigh Abrasion24 MPa120 mm³Mining, quarrying
XExtreme Abrasion25 MPa90 mm³Recycling, heavy-duty mining
Table 2: Heat-Resistant Grades
GradeMax Temp (°C)Tensile StrengthApplication
T110014 MPaCement manufacturing, baking
T212514 MPaSteel processing, glass industry
T315014 MPaFoundries, incineration plants
T418014 MPaAsphalt production, smelting
Table 3: Oil and Chemical-Resistant Grades
GradeResistance LevelApplicationTensile StrengthFeatures
OROil ResistantFood processing, chemical plants16 MPaPrevents swelling and degradation
MORModerate OilAutomotive, recycling15 MPaSuitable for intermittent exposure
HORHigh OilOil refineries, tar processing17 MPaFor continuous oil exposure


Selecting the appropriate cover rubber for conveyor belts is crucial for ensuring operational efficiency, safety, and cost-effectiveness. By considering the material characteristics, operational environment, and specific industry requirements, businesses can make informed decisions that optimize the performance and lifespan of their conveyor systems.

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