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D Miningwell Mining Roof Support Bar R25 R32 R38 R51 T30 T40 T52 T76 Tunnel Rock Bolt Self Drilling Anchors
Basic Info.
| Model NO. | FB33, FB39, FB42, FB47 |
| Trademark | D Miningwell |
| Origin | Zhejiang, China |
| Production Capacity | 1000 PCS Per Month |
Product Description
D miningwell Mining Anchor Bar R25 R32 R38 R51 T30 T40 T52 T76 Tunnel Support Anchor Bolt Self Drilling Injection Anchor
Dia. | 33mm | 39mm | 42mm | 47mm |
Thickness | 2.5mm | 2.5mm | 2.5mm | 3.0mm |
Ring Dia. | 6mm | 6.5mm | 7.0mm | 7.5mm |
Slot Size | 10mm | 15mm | 17mm | 20mm |
Min.Yield Strength | 78Kn | 88Kn | 95Kn | 124Kn |
Min.breaking Strength | 103Kn | 116Kn | 123Kn | 160Kn |
Max.Breaking Strength | 117Kn | 132Kn | 140Kn | 186Kn |
Elongation | >16% | >16% | 16% | 16% |
Anchoring | 4-7tons | 5-8tons | 5-8tons | 6-12tons |
Domed Plate | 150*150*4mm | 150*150*4mm | 150*150*5mm | 150*150*5mm |
Self-drilling bolt is mainly composed of hollow bolt body nut plate connecting sleeve center and drill bit, set drilling grouting anchorage function as a whole universal in crushing difficult hole surrounding rock self-drilling bolt is divided into R series and T series, model inclusion R25, R2, R38,R51,T30, T40,T52, T76, according to different engineering requirements, can choose the same product type and product model
Split Set rock bolts (friction bolts) are manufactured to a highest standard of quality.
Rigid standards of quality are achieved by exhaustive quality control,
testing and inspection procedures. Detailed drawings specify materials, dimensions, and tolerances.
Every Split Set is identified with model number, length, factory, rolling date, and heat lot of the steel.
