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Help CenterFire Resistant Steel Cord Conveyor Belt for General Use
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Fire Resistant Steel Cord Belt, Coal Mine Steel Cord conveyor Belt, Anti-Tear Steel Cord conveyor Belt Manufacturer
1. Applications
Fire resistant steel cord conveyor belt is suitable for general uses, such as coal washing plants on the ground, power plants, and non-coal mines under ground. It should meet requirements of electrical and fire safety properties.
2. Physical Properties of Rubber Cover
Grade |
Tensile Strength/Mpa ≥ |
Breaking Elongation/% ≥ |
Abrasion Loss/mm3 ≤ |
H |
20 |
400 |
200 |
D |
18 |
400 |
120 |
L |
15 |
350 |
200 |
Note:Grade H-used for highly-sharp working conditions.Grade D-used for highly-abrasive working conditions.Grade L-used for general working conditions. | |||
After-aging properties of rubber cover(70℃×7d):
Change rate of tensile strength & breaking elongation: -25%~+25%.
3. Adhesion
a. Adhesion between rubber cover and belt core: ≥12N/mm.
b. Adhesion of steel core (N/mm)
Belt type |
630 |
800 |
1000 |
1250 |
1600 |
2000 |
2500 |
2800 |
3150 |
3500 |
4000 |
4500 |
5000 |
5400 |
Before- aging, ≥ |
60 |
70 |
80 |
95 |
105 |
105 |
130 |
135 |
140 |
145 |
150 |
165 |
175 |
180 |
After- aging, ≥ |
55 |
65 |
75 |
90 |
95 |
95 |
120 |
125 |
130 |
140 |
145 |
160 |
170 |
175 |
4. Specification
Specification of steel cord conveyor belt
Belt type |
ST630 |
ST800 |
ST1000 |
ST1250 |
ST1600 |
ST2000 |
ST2500 |
ST2800 |
ST3150 |
ST3500 |
ST4000 |
ST4500 |
ST5000 |
ST5400 |
Min. tensile strength (N/mm) |
630 |
800 |
1000 |
1250 |
1600 |
2000 |
2500 |
2800 |
3150 |
3500 |
4000 |
4500 |
5000 |
5400 |
Max. diameter of steel cord (mm) |
3.0 |
3.5 |
4.0 |
4.5 |
5.0 |
6.0 |
7.2 |
7.6 |
8.1 |
8.6 |
8.9 |
9.7 |
10.9 |
11.3 |
Min. breaking force of steel cord (kN) |
6.93 |
8.8 |
13.2 |
16.5 |
21.12 |
26.4 |
41.25 |
45.9 |
51.98 |
57.70 |
66.00 |
79.20 |
93.50 |
101.0 |
Steel cord pitch (mm) (±1.5) |
10 |
10 |
12 |
12 |
12 |
12 |
15 |
15 |
15 |
15 |
15 |
16 |
17 |
17 |
Top cover thickness (mm) |
5 |
5 |
6 |
6 |
6 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8.5 |
9 |
Bottom cover thickness (mm) |
5 |
5 |
6 |
6 |
6 |
6 |
6 |
6 |
8 |
8 |
8 |
8 |
8.5 |
9 |
Belt width |
Number of steel cord |
|||||||||||||
800 |
75 |
75 |
63 |
63 |
63 |
63 |
50 |
50 |
50 |
50 |
||||
1000 |
95 |
95 |
79 |
79 |
79 |
79 |
64 |
64 |
64 |
64 |
64 |
59 |
55 |
55 |
1200 |
113 |
113 |
94 |
94 |
94 |
94 |
76 |
76 |
76 |
77 |
77 |
71 |
66 |
66 |
1400 |
133 |
133 |
111 |
111 |
111 |
111 |
89 |
89 |
89 |
90 |
90 |
84 |
78 |
78 |
1600 |
151 |
151 |
126 |
126 |
126 |
126 |
101 |
101 |
101 |
104 |
104 |
96 |
90 |
90 |
1800 |
171 |
143 |
143 |
143 |
143 |
114 |
114 |
114 |
117 |
117 |
109 |
102 |
102 |
|
2000 |
159 |
159 |
159 |
159 |
128 |
128 |
128 |
130 |
130 |
121 |
113 |
113 |
||
2200 |
176 |
176 |
176 |
176 |
141 |
141 |
141 |
144 |
144 |
134 |
125 |
125 |
||
5. Safety property
Item |
Fire resistant grade |
|
K2 |
K3 |
|
Duration of flame |
Total value of flame duration of 6 samples with covers, not more than 45s, any single value not more than 15s. |
Average value of flame duration of 3 samples with covers, not more than 60s. |
Static conductive properties |
≤ 3×108Ω |
|
Reappearance of flame |
not allowed in any sample |
|
Huayue started business by producing rubber belts since 1982. It has been one of Solid Woven Conveyor Belts manufacturers and is the major factory of fabric conveyor belt and Steel Cord Conveyor Belt in China.
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