Cover Rubber
Covers of natural of synthetic rubber are used in Conveyor Belt productions to save base Carcass from wear, impact, deterioration and other influences. They are compounded to meet particular service conditions as Bras ion, Oil, Heat, Flame, Chemical, Resistant and Antistatic, etc, cover type quality and thickness are matched to service life of belt involved. Cover formulation for Belt manufacturing is determined by material to be carried and environment in which belt will orate.
Carcass
This consists one or more piles of textile fabric with rubber on each side to give adhesion and flexibility commonly used fabrics are, Nylon Polyester and Cotton, strength to move loaded belt and absorb the impace of impinging material being loaded into Conveyor Belt.
Rubber Skim Coat
Extra layer compound between plies is called Skim Coat. These are contributors to internal Adhesions, Impact Resistance and play a significant role in determining belt load support and trough ability. Improper Skims can adversely affect belt performance and lead to ply separation.
Breaker Fabric
A special woven fabric between cover and carcass improves cushioning, the gouging and tear resistant properties of cover rubber and protects Carcass from Impact damages. This construction is recommended for use in belts handling primarily crushed and sized material which gives severe impact to belt when lumps drop ata loading point.
International Standards
|
Standard & Grade
|
Minimum Tensile Strength (Mpa) |
Minimum Elongation at Break (%) |
Maximum Abrasion Loss (mm³) |
|
DIN - X |
25 |
450 |
120 |
|
AS-M |
24 |
450 |
125 |
|
I S -M24 |
24 |
450 |
150 |
|
BS - M24 |
24 |
450 |
150 |
|
SANS - M |
24 |
450 |
120 |
|
SANS - N |
20 |
400 |
150 |
|
DIN - Y |
20 |
400 |
150 |
|
AS - N |
17 |
400 |
200 |
|
IS - N17 |
17 |
400 |
200 |
|
BS - N17 |
17 |
400 |
150 |
|
RMA 1 |
17 |
450 |
150 |
|
JIS - S |
18 |
450 |
200 |