T30 Self-Drilling Hollow Anchor Bolt

The self-drilling anchor bolt mainly consists of a hollow anchor body, nut, bearing plate, coupling sleeve, centralizer, and drill bit. The self-drilling anchor bolt integrates drilling, grouting, and anchoring functions into one, making it suitable for fractured and difficult-to-drill surrounding rock.

Self-drilling anchor bolts can be used for slope support, foundation pit support, pile foundation support, tunnel pipe-roof support and systematic support, foundation support for transmission towers or wind towers, and repair of old buildings, etc.

Hengnuo self-drilling anchor bolts are divided into the R series and T series, with models including R25, R32, R38, R51, T30, T40, T52, and T76. Different product types and models can be selected according to different engineering requirements.

Product structure:

Parameters:

Hollow anchor body:

Drill bit:

Product advantages:

1. The self-drilling anchor bolt can perform simultaneous grouting while drilling to achieve the anchoring effect. Its construction efficiency is higher than that of ordinary hollow anchor bolts, and it is suitable for fractured and difficult-to-drill surrounding rock.

2. No casing is required for wall protection during construction, which improves construction efficiency and reduces the overall project cost while shortening the construction period.

3. The hollow anchor body can be cut at will and extended through coupling sleeves. Therefore, self-drilling anchor bolts can also be used in narrow spaces where large equipment cannot enter.

4. Compared with conventional drill rods for rock drilling tools, self-drilling anchor bolts are equipped with a wide variety of drill bits, which can be selected according to the properties of different rock formations and soils during construction, thereby improving drilling efficiency.

Application fields:

Self-drilling anchor bolts can be used for slope support, foundation pit support, pile foundation support, tunnel pipe-roof support and systematic support, foundation support for transmission towers or wind towers, and repair of old buildings, etc.

1. Foundation and foundation engineering

2. Slope engineering

3. Tunnel and underground engineering