Hollow core Rock Bolt R25N
All Thread,High Strength Hollow Bar Anchor Bolt
Installation guide of the Rock Anchor Bolt:
Product Description:
Self drilling Anchor
R /T thread
Customized
Simultaneous Drill and Grout Installation
Combines both operations into a single construction cycle, enabling high rates of production
Fully Threaded Rod Sections
Continuous thread ensures that rods can be cut and coupled at any point
No Casing Required
Can be installed into loose or collapsing soils without the need for a temporary
It's widely used in many projects of the subway, high-speed rail ,railways, Soil Nails, Micropiles ,highways and hydropower stations, with good popularity and quality
SDA (IBO) is a kind of safety product.
Safe products is the most important thing of engineering safety.
We only produce safe products.
Security is not just lip service.
Established in the early 1990s
The first and best manufacturer of SDA ( Self-drilling Anchor Rock Bolt ) in China
ONTON Techology Co., Ltd. is the main compiling units of the standard named "Technical Terms of Hollow Anchor Bolts"
We participate in the ministry of railways Self-drilling Anchor Rock Bolt standards and almost all of the high-speed railway construction in china
OEM accepted
R25N | Outside diameter ( mm) | Average internal diameter ( mm) | Aver.cross sectional area (mm2) | Ultimate load capacity ( kN ) | Yield load capacity ( kN ) | Average tensile strength Rm ( N/ mm2 ) | Average yield strength Rp0,2 ( N/ mm2 ) | Weight (kg/m)
|
25 | 15 | 267 | 200 | 150 | 750 | 580 | 2.1 | |
We can supply products according to your requirements | ||||||||
Why choose us?
Company Information:
Certifications:
Customize service:
Custom process:
Packaging & Shipping:
Generally: 50 pcs Hollow Rock Bolt / bunndle,outer with woven bags or as requirement.
Application of Self Drilling Rock Bolts:
NATM Tunneling Engineering
