EPNNBACKGROUND

EP/NN Conveyor Belt

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Advantage

Lightweight, high modulus, good impact resistance, low elongation, weak elasticity, good trough ability, anti-humidity and anti-insect.

Suitable for transportation in medium or long range with heavy load.

Application

Commonly used in conveying of bulk materials and baggage in coal mines, foundries, sandpits, quarries, grain industry, cement industry, wood industry and steel industry , etc.

Characteristic

EP BELT

Built with EP canvas carcass, the belt carries the advantage of being light weight, high modulus, good impact resistance, low elongation, weak elasticity, good trough ability, anti-humidity and anti-insect.

Suitable for transportation in medium or long distance with heavy load under high-speed working condition.
Low elongation, high modulus and good trough ability.

NN Belt

Built with NN canvas carcass, the belt carries the advantage of being light weight, high modulus, good impact resistance, low elongation, good elasticity and good trough ability.

Suitable for transportation in medium or long carries with advantage of being light weight, high modulus good impact resistance, low elongation, good elasticity and good trough ability.

Suitable for transportation in medium or long distance under conditions of big impact and heavy abrasion.
High modulus and high resistance to tension, impact resistance and good trough ability.

Specification Comparison

Standard Rubber Grade Standard Rubber Grade
CNS
Taiwan
L

DIN

Germany

W
S X
H Y

JIS

Japan

P Z
G BS
UK
M24
S N17
A

RMA

USA

GRADE1
L GRADE2
D

AS

Australia

AS-A
H AS-E

GBT

China

D AS-F
H AS-M
L AS-N
P AS-S
Standard Rubber Cover Grade: M/N

Main Technical Data

High wear resistance and energy saving

SWR Solid woven fire resistance

Heat
Resistance
Oil
resistance

Fabric Type Total Tensile Strength Top Cover Thickness(mm) Bottom Cover Thickness(mm)
EP 100 200-800 3.0 4.5 6.0 1.5 3.0
150 315-1250 3.0 4.5 6.0 1.5 3.0
200 400-1500 3.0 4.5 6.0 1.5 3.0
250 500-2000 3.0 4.5 6.0 1.5 3.0
300 500-2000 3.0 4.5 6.0 1.5 3.0
400 630-2500 3.0 4.5 6.0 1.5 3.0
NN 100 200-800 3.0 4.5 6.0 1.5 3.0
150 250-1000 3.0 4.5 6.0 1.5 3.0
200 315-1250 3.0 4.5 6.0 1.5 3.0
250 400-1600 3.0 4.5 6.0 1.5 3.0
300 500-2000 3.0 4.5 6.0 1.5 3.0
400 630-2500 3.0 4.5 6.0 1.5 3.0

Adhesion between layers

Item Adhesion between fabrics(N/mm) Adhesion between rubber and fabric(N/mm)
(Cover) 1.5 mm (Cover) > 1.5 mm
(Max) 20 20 20
(Average) 5 3.5 4.5
(Min) > 4 4 3.5

Rubber Cover Properties

Item Unit Rubber Grade
W X Y Z
Tensile Strength MPa 18 25 20 15
Elongation at Break % 400 450 400 350
Abrasion mm3 490 120 150 250

Tensile Strength(kgf/cm)

FabricType EP Fabric NN Fabric
2 PLY 3 PLY 4 PLY 5 PLY 6 PLY 7 PLY 8 PLY 2 PLY 3 PLY 4 PLY 5 PLY 6 PLY 7 PLY 8 PLY
100 250 400 50 630 800 800 1000 160 250 315 400 500 630 630
150 315 400 630 800 800 1000 1250 200 315 400 500 630 630 800
200 315 500 630 800 1000 1000 1250 200 315 400 500 630 800 800
250 400 500 800 1000 1000 1250 1400 315 400 630 630 800 1000 1250
300 400 630 800 1000 1250 1250 1400 315 400 630 630 800 1000 1250
400 500 630 1000 1250 1250 1600 315 500 630 800 1000 1250

Oil Resistance

Rubber Cover Property
Item Tensile Strength Elongation at break(%) Abrasion(mm3) Hardness Shore (A Deg) Ozone Deterioration
Cover Physical Property Before Aging 14.0 400 250 55-70 No Crack
After Aging 12.0 340 60-75
Acid and Alkali Resistance CLass Soak Liquid Density Soak Conditions(Deg C * h) Change Rate before and after Aging
Swelling Rate Change Rate of Tensile Strength
HCl Hydrocholric Acid 18% 50 Deg C X 96h < + 10% < – 10%
HSO Sulfuric Acid 50% 50 Deg C X 96h < + 10% < – 10%
NOH NOH 48% 50 Deg C X 96h < + 10% < – 10%

Cold Resistance

Rubber Cover Property
Item Unit H D L
Tensile Strength N/mm2 24 18 15
Elongation at Break % 450 400 350
Aging Test (70Deg C, 7Days)
Change rate of tensile strength % +25 +25 +25
Change rate of elongation at break % +25 +25 +25
Abrasion Mm3 120 100 200
Coefficient of low temperature at extension
C1 (-45 Deg C) 0.3
C2 (-50 Deg C) 0.2

Heat Resistance

Belt Selection For Your Reference
Type Conveyed Material Temperature Belt Surface Temperature Usage
T1 (Bulk material) 70 Deg C – 200Deg C
(Powerder material) 70 Deg C – 120 Deg C
50 Deg C – 120 Deg C Coke, sinter and low temperature heat reistance
T2 100 Deg C – 400 Deg C 120 Deg C – 200 Deg C Steel casting and sinter
T3 100 Deg C – 400 Deg C 120 Deg C – 200 Deg C Cement clinker, residues and dry powder
Heat & Oil Resistant 70 Deg C – 120 Deg C 50 Deg C – 120 Deg C Asphalt and other oil-bearing materials

SWR Fire Resistant Belt

Table of Structure and Performance
Structure Performance Domestic Conventional Solid Woven Belts International Conventional Solid Woven Belts SWR Solid WovenFire Resistance Belts
Carcass NN/EE/CC NN/EE/CC NN/EE/CC
Cover PVC/PVC + Natural RubberPVC/PVG + Natural Rubber PVC/PVC + Natural RubberPVC/PVG + Natural Rubber High Polymer + Natural Rubber
Abrasion(mm3) 200 200 150
Tensile Strength(MPA) 15 15 20
Elongation (%) 350 350 400
Cover Thickness (mm) 5+3 4+2 12
Trough Ability Fair Good Excellent
Pulley Diameter Big Medium Small
Production Process Carcass PVC Plasticizer Carcass PVC Plasticizer High Polymer & Nano-Bonding System

High Wear Resistant and Energy-Saving Conveyor Belt

Main Technical Data for Reference
Cover Grade Tensile Strength Elongation Abrasion Change Rate of Tensile Strength and Elongation after Aging
MPA % Mm3 %
Strong crack-type 24 450 120 -25 / +25
Strong wear-type 18 400 90 -25 / +25
General type 15 350 200 -25 / +25

EP/NN Relative Thickness of Belt versus Width

Width(mm) Thickness of the Belt(mm)
5.0 6.0 7.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0
300 1.9 2.2 2.5 3.2 3.7 4.0 4.4 4.8 5.1 5.6 6.0 6.4 6.8 7.1 7.5
350 2.1 2.5 2.0 3.8 4.3 4.7 5.1 5.6 6.0 6.6 7.0 7.4 7.9 8.3 8.8
400 2.4 2.9 3.4 4.3 4.9 5.4 5.9 6.3 6.8 7.5 8.0 8.5 9.0 9.5 10.0
450 2.7 3.2 3.8 4.9 5.5 6.0 6.6 7.1 7.7 8.4 9.0 9.6 10.1 10.7 11.3
500 3.0 3.6 4.2 5.4 6.1 6.7 7.3 7.9 8.5 9.4 10.0 10.6 11.3 11.9 12.5
550 3.3 4.0 4.6 5.9 6.7 7.4 8.1 8.7 9.4 10.3 11.0 11.7 12.4 13.1 13.8
600 3.6 4.3 5.0 6.5 7.3 8.1 8.8 9.5 10.2 11.3 12.0 12.8 13.5 14.3 15.0
650 3.9 4.7 5.5 7.0 7.9 8.7 9.5 10.3 11.1 12.2 13.0 13.8 14.6 15.4 16.3
700 4.2 5.0 5.9 7.6 7.5 9.4 10.2 11.1 12.0 13.1 14.0 14.9 15.8 16.6 17.5
750 4.5 5.4 6.3 8.1 9.2 10.1 11.0 11.9 12.8 14.1 15.0 15.9 16.9 17.8 18.8
800 4.8 5.8 6.7 8.6 9.8 10.7 11.7 12.7 13.7 15.0 16.0 17.0 18.0 19.0 20.0
900 5.4 6.5 7.6 9.7 11.0 12.1 13.2 14.3 15.4 16.9 18.0 19.1 20.3 21.4 22.5
1000 6.0 7.2 8.4 10.8 12.2 13.4 14.6 15.9 17.1 18.8 20.0 21.3 22.5 23.8 25.0
1050 6.3 7.6 8.8 11.3 12.8 14.1 15.4 16.7 17.9 19.7 21.0 22.3 23.6 24.9 26.3
1200 7.2 8.6 10.1 13.0 14.6 16.1 17.6 19.0 20.5 22.5 24.0 25.5 27.0 28.5 30.0
1400 8.4 10.1 11.8 15.1 17.1 18.8 20.5 22.2 23.9 26.3 28.0 29.8 31.5 33.3 35.0
1500 9.0 10.8 12.6 16.2 18.3 20.1 22.0 23.8 25.6 28.1 30.0 31.9 33.8 35.6 37.5
1600 9.6 11.5 13.4 17.3 19.5 21.5 23.4 25.4 27.3 30.0 32.0 34.0 36.0 38.0 40.0
1800 10.8 13.0 15.1 19.4 22.0 24.2 26.4 28.5 30.7 33.8 36.0 38.3 40.5 42.8 45.0
2000 12.0 14.4 16.8 21.6 24.4 26.8 29.3 31.7 34.2 37.5 40.0 42.5 45.0 47.5 50.0
2100 12.6 15.1 17.6 22.7 25.6 28.2 30.7 33.3 35.9 39.4 42.0 44.6 47.3 49.9 52.5
2200 13.2 15.8 18.5 23.8 26.8 29.5 32.2 34.9 37.6 41.3 44.0 46.8 49.5 52.3 55.0