Hollow Grouting Anchor Rod
The main components of hollow anchor: hollow anchor body, grouting plug, backing plate, nut and anchor head (drill)
CHINA COALHollow Grouting Anchor Rod
PRODUCT DESCRIPTIONThe hollow grouting bolt body is a grouting pipe. Not only can the rod body be anchored after the grouting is pressed, but when the grouting pressure is high, part of the slurry will seep into the cracks of the anchor hole and play a role in strengthening surrounding rock. The upper lifting hole shall be provided with a slurry stopper and an exhaust pipe.
The main components of hollow anchor: hollow anchor body, grouting plug, backing plate, nut and anchor head(drill)
Hollow Grouting Anchor Rod
PRODUCT FEATUREINTEGRATED DRILLING, GROUTING AND ANCHORING
Hollow self-advancing bolts are mainly used for excavation and support construction in fault fracture zones, replacing ordinary mortar bolts under complex geological conditions. The bearing capacity of the surrounding rock is improved, the overall stability of the surrounding rock is ensured, and it has good application value.
PREVENTING THE OVERFLOW OF SLURRY AND STRENGTHENING THE ROCK MASS
The hollow grouting anchor rod is first inserted into the hollow rod body to inject cement slurry from the inside to the outside of the hole, and the outer end of the anchor hole has a grouting plug and a pallet, which effectively prevents the slurry from overflowing and ensures that the rock mass within the anchoring range is consolidated.
Hollow Grouting Anchor Rod
HOLLOW DESIGN FULL GROUTING
EASY TO INSTALL
CONTROL THE INITIAL DEFORMATION OF THE ROCK MASS TO PREVENT THE BROKEN ROCK FROM FALLING
After the grouting is solidified, tighten the nut with a wrench to provide a resistance of about 10KN of the pallet. A spherical pressure zone similar to the mechanical anchor is formed at the top of the bolt to control the primary deformation of the rock after excavation and prevent the broken rock from falling
HOLLOW DESIGN
CHARACTERISTICS-
Realized the function
of grouting - No need to process threads on site,You can easily install the pad,Nut.
EASY TO INSTALL
Hollow Grouting Anchor Rod
PRODUCT ANALYSIS01 The barbs on the anchor head can position the anchor rod in the drilled hole and ensure that the rod body is well centered.
02 The important components in the assembly play a major role in anchoring and supporting
03 Maintain the grouting pressure during the grouting process, so that the slurry is fully filled into the surrounding rock gaps
04 Withstand greater surrounding rock pressure。
05 Concentrate the surrounding rock pressure on the pad
Hollow Grouting Anchor Rod
PRODUCT PARAMETERSParameter of High Strength Mining Self Drilling Hollow Rock Anchor Drill Bolt
| Description | unit | R25 | R32N | R32N_1 | R32S | R32SS | R38N | R51N | T30N | T40N | T52 | T76N |
| Outer Diameter | mm | 25 | 32 | 32 | 32 | 32 | 38 | 51 | 30 | 40 | 52 | 76 |
| Inner Diameter | mm | 14.5 | 21.5 | 20 | 20 | 18.5 | 23 | 36 | 15 | 21 | 26 | 52 |
| Area | mm2 | 255 | 331 | 369 | 369 | 407 | 548 | 892 | 331 | 803 | 1274 | 1991 |
| Ultimate Tensile Load | KN | 200 | 280 | 280 | 360 | 400 | 500 | 800 | 260 | 660 | 929 | 1660 |
| Yield Load | KN | 150 | 230 | 230 | 280 | 330 | 400 | 630 | 220 | 525 | 730 | 1200 |
| Ultimate Tensile Strength | Mpa | 784 | 846 | 758 | 976 | 983 | 912 | 897 | 785 | 822 | 729 | 837 |
| Yield Strength | Mpa | 588 | 695 | 623 | 759 | 811 | 730 | 706 | 665 | 654 | 573 | 628 |
| Nominal Weight | kg/m | 2 | 2.6 | 2.85 | 2.9 | 3.2 | 4.2 | 7 | 2.6 | 6.3 | 10 | 15 |
Hollow Grouting Anchor Rod
COMPANY PROFILEChina Coal is a professional manufacturing base of mines support equipment, transport equipment, lifting equipment, spray equipment, drilling equipment, ventilation equipment, lifting equipment and other products, as well as research and development new product and mine construction products with advanced high technology.
COMPANY PROFILE
Shandong China Coal Industry and Mining Group is located in Jining High-tech Zone, "the hometown of Confucius and Mencius, the canal capital", with a plant area of 20,00 0 square meters and a free office area of 60 00 square meters.
The company recognizes through the safety quality systemCertificate: ISO9001 quality system certification, from Raw material selection, strict control of finished products Every production processand quality quality inspectionTesting to ensure product safety,environ mental protec-tion, qualityreliable.
