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Quick Details

  • Place of Origin: Shandong, China (Mainland)
  • Brand Name: TONRY
  • Model Number: m22
  • Type: Anchor Bolt
  • Material: Steel, HRB335,400,500,600
  • Diameter: 22mm
  • Length: Virous
  • Capacity: various
  • Standard: GB
  • Treadbar: Full bar.TR-Bar, Rebar
  • Function: mine tunnel and ground support base

Packaging & Delivery

Packaging Details: as customer's request

m22 resin bolt

 Threadbar rock bolt is composed of hot rolled ribbed bar, high strength plate, damping nut, yield tube, washer, and other accessories.

Usually used in thick coal seams with very high stress and large deformation.



1.High tensile strength and good support capacity which can prevent the roof from sinking and sliding.

2.Fast and easy installation by mechanized tools.

3.Used toghter with resin cartridge for permanent support.

4.Sharp end device makes installation easier and faster.

5.Left hand thread direction available.

6.Specially 'Sandwich" device can buffer and release the pressure.9

Item no.diametermass

yield strength


yield strength


yield strength


TRFT 1616mm1.5kgs/m≥67kn≥97kn≥ 17 %≥100kn≥135kn≥ 15 %≥178kn≥231kn≥ 9%
TRFT 1818mm1.9kgs/m≥85kn≥123kn≥ 17 %≥127kn≥171kn≥ 15 %≥226kn≥293kn≥ 9%
TRFT 2020mm2.4kgs/m≥105kn≥152kn≥ 17 %≥157kn≥211kn≥ 15 %≥280kn≥364kn≥ 9%
TRFT 2222mm2.9kgs/m≥126kn≥182kn≥ 17%≥190kn≥255kn≥ 15 %≥337kn≥438kn≥ 9%

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China (Mainland) | Manufacturer
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