Product Categories
I. Classification by Product Function:
1. Non-flame-retardant long-distance conveying type
It is suitable for conveying materials over long spans and distances. Its advantages include minimal elongation, uniform tension, smooth operation, resistance to misalignment, excellent wear resistance, low requirements for the site environment, and easy replacement. For medium- and long-distance material handling, it is widely used in industries such as mining, ports, power generation, metallurgy, construction, and chemical engineering.
Covering Rubber Performance Grade |
|||||
Cover Layer Performance Level |
Tensile strength, MPa |
Elongation at break (%) |
Wear amount mm 3
|
Percentage change in performance after aging at 70°C for 168 hours |
Implementation Standard |
H |
24
|
450
|
120
|
±25 |
China GB/T 33525 |
D |
18
|
400
|
90
|
±25 |
China GB/T 33525 |
L |
15
|
350
|
200
|
±25 |
China GB/T 33525 |
X |
25
|
450
|
120
|
±25 |
German DIN-22102 |
W |
20
|
400
|
150
|
±25 |
German DIN-22102 |
Y |
20
|
400
|
150
|
±25 |
German DIN-22102 |
Z |
15
|
350
|
250
|
±25 |
German DIN-22102 |
Grade 1 |
17
|
400
|
125
|
±25 |
U.S. ARPM |
Grade 2 |
15
|
350
|
150
|
±25 |
U.S. ARPM |
2. Underground flame-retardant type (compliant with standard MT669-1997)
Specifically designed for main roadways and main inclined shafts in coal mines, it offers high‑standard safety performance, with flame‑retardant properties and self‑extinguishing characteristics, effectively preventing fire incidents and the spread of flames. It is ideally suited for coal‑mine environments characterized by high gas concentrations, high coal dust levels, and a high risk of flammability and explosiveness.
Safety performance |
|||
Project |
Indicator |
||
Static dissipative |
Average surface resistances of the upper and lower surfaces of the strip |
≤3*10 8 Omega |
|
Drum friction |
Drum surface temperature |
≤325℃ |
|
The specimen exhibits neither visible flame nor flaming combustion. |
None |
||
Torch combustion (Flame or flameless combustion) |
Complete cover-layer combustion |
Average self-extinguishing time of six specimens |
≤3S |
Average self-extinguishing time of six specimens |
≤10S |
||
Remove the covering layer and burn. |
Average self-extinguishing time of six specimens |
≤5S |
|
Average self-extinguishing time of six specimens |
≤15S |
||
Propane combustion test |
Undamaged full-width length |
≥600mm |
|
II. Classification by Framework Material
1. Steel bar type
The carcass material consists of a double-layer, cross‑woven polyester fabric with high‑strength rubber and highly elastic steel strips sandwiched between the layers to form a rigid core. It is characterized by exceptional structural rigidity, capable of carrying both materials and personnel, with superior load‑bearing capacity, making it ideal for long‑distance transport of heavy loads.
Schematic diagram of a steel bar-type structure
Structural combination |
||
Hierarchy |
Materials and Structures |
Functionality |
Top cover adhesive |
Wear-resistant rubber |
Impact-resistant |
Upper reinforcement layer |
Viscoelastic polyester layer + buffer layer (key tension layer) |
Absorbs impact energy and prevents crack propagation. |
Core adhesive layer |
High-elastic rubber + steel strip |
High adhesion, with impact‑absorbing elasticity. |
Lower enhancement layer |
Viscoelastic polyester layer (key tension layer) |
Withstand driving tensile force |
Lower cover rubber |
Wear-resistant rubber |
Mechanical friction of the bearing device |
Interlocking ear gel |
High-hardness rubber with a flex-resistant toothed structure. |
Transmits traction, prevents ear‑groove deformation, and offers excellent wear and flex resistance. |
Steel bar material (material and dimensions—length, width, and height—are customizable) |
||||||||
Material |
Elastic modulus E/GPa |
Shear modulus G/GPa |
Density ρ/g·cm³ |
Tensile strength Rm/MPa |
Yield strength Rp/MPa |
Impact energy ψk/J |
Allowable stress [τ]/MPa |
Poisson’s ratio μ |
51CrV4 |
206
|
78.5
|
7.85
|
1274
|
1127
|
8~14 |
1050
|
0.3
|
60Si2Mn |
206
|
78.5
|
7.85
|
1570
|
1375
|
|
736
|
0.3
|
2. Steel mesh type
The carcass material consists of a tear‑resistant steel mesh, woven with polyester cords in the longitudinal direction and copper‑plated steel wires in the transverse direction, sandwiched between high‑strength rubber layers that serve as a rigid core. It features excellent tear resistance, superior groove‑forming performance, light weight, long single‑roll lengths, and a short production cycle.
Schematic diagram of a steel mesh structure
Hierarchy |
Materials and Structures |
Functionality |
Top cover adhesive |
Wear-resistant rubber |
Impact-resistant |
Upper reinforcement layer |
Steel mesh layer (key tension and tear-resistant layer) |
Absorbs impact energy and prevents crack propagation. |
Core adhesive layer |
High-elastic rubber |
High adhesion, with impact‑absorbing elasticity. |
Lower enhancement layer |
Steel mesh layer (key tension layer) |
Withstands tensile forces and offers multi-directional tear resistance. |
Lower cover rubber |
Wear-resistant rubber |
Mechanical friction of the bearing device |
Interlocking ear gel |
High-hardness rubber |
Transmits traction, prevents ear groove deformation, and is wear-resistant. |
III. Dimensions and Specifications (Customization available upon request for dimensions not listed below)
Width mm |
Cable diameter φ |
Top cover adhesive thickness mm |
Lower cover rubber thickness mm |
Steel bar length × width × thickness mm (steel bar type) |
1300
|
40.5
|
5
|
5
|
1250×7×7 |
1290
|
40.5
|
3
|
3
|
1250×6×6 |
1280
|
40.5
|
3
|
2
|
1240×6×6 |
1126
|
40.5
|
3
|
3
|
1080×5×5 |
1090
|
40.5
|
5
|
5
|
1055×5×5 |
1070
|
40
|
3
|
1.5
|
1034×5×5 |
1064
|
40
|
3
|
2
|
1034×5×5 |
1055
|
34.5
|
3
|
1.5
|
1034×5×5 |
1026
|
40
|
3
|
2
|
990×5×5 |
964
|
34.5
|
3
|
1.5
|
927×5×5 |
864
|
34.5
|
4.5
|
2.5
|
840×5×5 |
860
|
34.5
|
3
|
2
|
820×4×4 |
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