Paddle Bolt
The paddle bolt ,which also named "grooved bolt" is manufactured from full thread bar, TR-Bar or Rebar.
Paddle Bolt
The paddle bolt ,which also named "grooved bolt" is manufactured from full thread bar, TR-Bar or Rebar.
Applications
Product Introduction
The paddle bolt ,which also named "grooved bolt" is manufactured from full thread bar, TR-Bar or Rebar. One end is stamped into 3½ paddle configuration and the other end is rolled thread. Being used with plate, domed ball,anti-friction washer and nut, Paddle bolt can be an effective rock reinforcement system for underground rock support.
Features and Advantages
1.Available in various of bar configuration.
2.The paddle configuration in the end of the bolt will improve resin mixing and consequently provide high bond strength in large diameter boreholes.
3.With pin nut device, nut could help drive the bolt to mix the resin.
4.Used for permanent ground support in mine and tunnels.
5.Fast and easy installation by mechanized tools.
6.Available in black or hot dip galvanized.
Mechanical Properties
| Bolt Diameter | 20mm/22mm |
| Bolt Length | 1.8m-3.0m |
| Yield Strength | 20mm:164 KN / 18 tons 22mm:193 KN / 21.7 tons |
Bearing plate
Round plate,Domed plate.
Accessories
Domed nut, hex nut, anti-friction washer,domed ball.
Length and Package
Length:1.8m / 2.2m / 2.4m or as requested.
Package:100pcs each bundle as specified.
Installation Guide
-The nature of the ground must be evaluated.
-Drill a hole with punch according to the diameter of rock bolt,the diameter of hole is 6mm-12mm bigger than the rock bolt.
-Before installation,the hole should be blown and cleaned by compressed air.
-If use resin,push the resin into the hole by hand or machine,ensure it could reach to the top of hole.
-Rotate and push the bar,when the plate reaches the roof,spin bolt to ensure that mix the resin completely.The mixing time should be controlled strictly according to the using in struction of resin.
-Screw the nut tightly when time is up.
Product real scene
