Our company, Qingdao Hongkun Precision Co., Ltd. (formerly Qingdao Hi-Tech Industrial Park Hongkun Rubber and Plastic Co., Ltd., established in March 2000) has been engaged in belt production for more than 20 years. The steel cord conveyor belt products produced by our company have been actually tested for tensile strength, elongation at break, abrasion and many other performance indicators are higher than the standard, the details are as follows:
Comparison of physical performance indexes of ordinary steel cord conveyor belt products with "Ordinary steel cord conveyor belt GB/T 9770-2001":
①The physical properties of the cover rubber (the actual test value of our company)
Types of | Tensile strength Mpa, ≥ | Elongation at break%, ≥ | Abrasion amount mm³,≤ | |||
National standard | Our factory | National standard | Our factory | National standard | Our factory | |
H | 25 | 26 | 450 | 500 | 120 | 110 |
D | 18 | 19 | 400 | 480 | 90 | 87 |
L | 20 | 21 | 400 | 520 | 150 | 135 |
P | 14 | 16 | 350 | 530 | 200 | 180 |
Remarks: H-Strong scratch working conditions; D-Strong wear working conditions; L-General working conditions; P-Oil-resistant, heat-resistant, acid-base, cold-resistant and generally flame-resistant conveyor belt |
② Bonding strength of steel wire rope (unit N/MM)
Band strength specifications | Bonding strength of steel wire rope, ≥ | Band strength specifications | Bonding strength of steel wire rope, ≥ | |||||||
Before heat aging | After heat aging | Before heat aging | After heat aging | |||||||
St630 St800 St1000 St1250 St1600 St2000 St2500 | National standard | Our factory | National standard | Our factory | St3150 St3500 St4000 St4500 St5000 St5400 | National standard | Our factory | National standard | Our factory | |
60 70 80 95 105 105 130 | 65 75 85 100 108 108 140 | 55 65 75 90 95 95 120 | 60 67 77 93 98 98 130 | 140 145 150 165 175 180 | 150 155 165 175 185 190 | 130 140 145 160 170 175 | 140 150 155 175 180 185 |
Based on the implementation of GB/T9770-2001 and MT668-1997 standards, our company has developed an impact-resistant and tear-resistant steel cord conveyor belt. After the product is improved, one or both sides perpendicular to the longitudinal steel cord are added, and the horizontal direction is uniform. Laying reinforced layers such as steel wire ropes and fiber ropes increases impact resistance and reduces external tear strength. At the same time, we can produce steel cord conveyor belt products of various specifications such as heat resistance, cold resistance, oil resistance, acid and alkali resistance, flame retardant, anti-static, etc. Welcome customers to consult and discuss cooperation!