Dec. 01, 2022
Hardware
Split set rock bolts also called Split Set Stabilizer,Friction Bolts Split Sets, is an indispensable advanced material for underground mining support.
Split set rock bolt is a very specific support product, and it is an advanced material used for the support of the roof of the underground copper or gold mining and other projects.
PRODUCT DESCRIPTION
Split set rock bolt are rock bolts with only 2 parts, a tube and matching domed bearing plate. The high strength steel tube is slotted along its length. One end is tapered for easy insertion into a drill hole and the other has a welded ring flange to hold the bearing plate.
With the bearing plate in place, the tube is driven into a slightly smaller hole, using the same standard percussion drill that made the hole.
As the tube of the split set bolt slides into place, the full length of the slot narrows, causing radial pressure to be exerted against the rock over its full contact length.
| Dimensions | Physical Properties | Technical Data | ||||||||||
| Bolt Diameter | A | 47mm | Yield Strength | Min. 345 Mpa (120KN) | Recommended Normal Bit Size | 41-45mm | ||||||
| Bolt Length | B | 0.9-3.0m | Typical 445Mpa(150KN) | |||||||||
| Taper End Diameter | C | 38mm | Tub eUltimate Tensile Strength Suggested reading:What is the hairline finish on stainless steel? What is precision metal stamping? What are the advantages of using a Single Flute End Mill for Aluminum in the purchase stage of B2B marketing funnel? Can you anchor a gazebo into pavers? Ultimate Guide: How Stainless Steel Fireproof Doors Ensure Unmatched Safety? Unveiling the Secrets: DC Motor Stator VS Rotor - Unraveling the Facts and Differences! What is a pup piece on a pipe? | Min. 470 Mpa (160KN) | Typical Breaking Capacity | 178KN | ||||||
| Taper Slot Wide | D | 2mm | Typical 530Mpa(180KN) | |||||||||
| Taper Length | E | 100mm | Mass pe Meter | 2.71 Kgs | Min. Breaking Capacity | 133KN | ||||||
| Bolt Slot Wide | F | 25mm | ||||||||||
| Ring Location | G | 8mm | Cross Section Area | 345 mm² | Recommended Initial Anchorage | 6-10 Tons (53-89 KN) | ||||||
| Material Guage | H | 3/3.2mm | ||||||||||
| Ring Wire Guage | I | 8mm | Hole Diameter Range | 43-45.5mm | Ultimate Axial Strain | Typical 21% (Thk<16mm) | ||||||
| Ring Open Gap | J | 6-7mm | ||||||||||
COMPOSITION
Split set rock bolts can be load tested by fitting a special ring to the bolt prior to its installation. Pull tests can then be conducted with a hollow ram hydraulic jack.
Further corrosion protection can be provided by hot dip galvanizing.
The same as the self-drilling anchor bolt the surface treatment methods can be hot-dip galvanized, electro-galvanized or surface epoxy coating, and all need to be used with Volcano Plate.
Previous: Difference Between Nuts and Bolts
Related Articles
If you are interested in sending in a Guest Blogger Submission,welcome to write for us!
All Comments ( 0 )