STEEL RAIL
RAIL FASTENERS
RAIL EQUIPMENT
MINE SUPPORT
MINE CAR
PRODUCT DESCRIPTION:
U steel arch is a kind of passive support of coal mine support. It can be divided into 25U steel, 25UY steel, 29U steel, 36U steel, 40U steel.
SPECIFICATIONS:
Standard | GB/T 4697-2008 | |||||
Size | Specifications(mm) | Weight(kg/m) | Steel Grade | |||
H1 | H3 | B1 | M | |||
25U | 120 | 15 | 135 | 6.3 | 24.95 | 20Mnk |
25UY | 110 | 17 | 134 | 6.6 | 24.76 | 20Mnk |
29U | 124 | 16 | 150.5 | 7.2 | 29.00 | 20Mnk |
36U | 138 | 17 | 171 | 7.8 | 35.87 | 20Mnk |
40U | 141.9 | 20.2 | 171 | 8.5 | 40.05 | 20Mnk |
MAIN APPLICATION:
U steel arch is mainly used in mine tunnel, second support of mine tunnel, and the support of mountain tunnel.
Email: zxzhihu@gmail.com
Whatsapp: +86 19937123680
ADVANTAGES:
1. Easy and fast assembling
2. Allow a very high roadway section convergency
3. It can be re-used after recovery and cold forming
4. Higher resistance against transveral and longitudinal stresses
FAQ:
Q: Are you trading company or manufacturer?
A: We are manufacturer.
Q: How long is your delivery time?
A: Generally, within 7-30 days after deposit received.
Q: Do you provide samples?
A: Available upon request.
Q: Can we visit you factory?
A: Warmly welcome! Once we have your schedule, we will arrange the professional sales team to fellow up your case.
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