concrete steel resin rockbolt without longitudinal rib: 1)reasonable structure; 2)high strength; 3)great pretightening load
concrete steel resin rockbolt without longitudinal rib executes MT146.2-2002 standards,and is maked by special processing technic,the strength of thread section which possesses the features of high capability on bending & shearing is greater than rod, be new kind of rockbolt.It possesses the feature of high strength,reasonable structure,great pretightening loads,and can adjust direction of force automatic, increase force of constraint to wall rock.
Its mainly used in kinds of engineering for high strength and permanent support,,such as laneway railway,hydropower.
Technical Parameter:
specification | Nominal dia.(mm) | Nominal sectional area(mm) | Yield load(KN) | Breaking load(KN) | Theoretical weight (kg/m) | ||||
BHRB335 | BHRB500 | BHRB600 | BHRB335 | BHRB500 | BHRB600 | ||||
20 | 20 | 326.85 | 105 | 163 | 190 | 155 | 210 | 260 | 2.47 |
22 | 22 | 380.13 | 125 | 190 | 230 | 185 | 250 | 310 | 2.98 |
Note:The above parameter is for your reference only,it can be modified without separate notification.
concrete steel resin rockbolt without longitudinal rib
