Find Verified Luhui R32 Self Drilling Hollow Anchor Bolts Suppliers, Manufacturers and Wholesalers

Product description
Luhui r32 self drilling hollow anchor bolts is mainly used in underground engineering , like weak surrounding rock, fault fracture zone, highland stress large deformation and other complex geology. Especially in serious hole collapse and deep fault rock situation, ordinary anchor rod is incapable of action. Lhz anchor bolt set drilling, grouting, lengthen and anchoring multifunction all in one, in all kinds of bad surrounding rock engineering applications achieved ideal support effect.

SizeLength
(m)Weight(kg/m)Outer
(mm)Inner
(mm)Cross section(mm²)Ultimate load(kn)Yield load
(kn)
R32l2.0-4.05.4-10.83221.5304210160
R32n2.0-4.06.8-13.63218.5396280230
R32s2.0-4.08.2-16.43215.0488360280
Tunnelling ground engineering

• radial bolting • slope stabilization

• forepoling • micro injection pile

• face stabilization • temporary support anchor

• portal preparation • soil nailing

Technology process
1. Connect the alloy drill and anchor rod one end, on the other end, connect the drill sleeve and shank adapter , then connect the drilling rig or hand-held drill. Then start drilling, fill the cooling water while drilling.( if you want to lengthen the anchor rod, can connect the coupling, and then drilling)
2. Take down the drill, put the stop-grouting plug into the rod, and insert it to the hole, then ready to grout. Special circumstances like surrounding rock grouting tension is over or surrounding rock is too broken, can use anchor agent to seal the hole.
3. Connect quick grouting coupling and anchor rod end, connect other end of grouting machine.
4. Start grouting, when grouting full and reach design value then power off . Grouting pressure according to the design parameters and grouting machine performance determine , cement/sand reference values is 1:0 ~ 1:1, water/cement reference value is 0.45:1 ~ 0.5:1.
5. Install anchor plate and nuts, and tighten nuts.

We Are Leading Manuacturer Of Brass Anchors

Circular steel pipe is both openings and have hollow concentric sections of steel larger than the surrounding. The specifications of steel pipes are indicated by appearance dimensions and inner diameter and wall thickness, with a wide range of dimensions from very small diameter capillary to large round steel pipe of several meters in diameter. Round steel pipes can be used for pipelines, thermal equipment, machinery industry, petroleum geological drilling, containers, chemical industry, and special uses. It can be divided into seamless, ERW, LSAW, SSAW steel pipe according to the production process.

The SupAnchor Self-Drilling Anchor

is a unique anchoring system and is todayÂë

answer to the increasing demands of the

tunnelling industry and ground engineering for safer and faster production.

The system provides advantages for all areas of its

applications, where boreholes would require the

time consuming drilling with casing systems in

unconsolidated or cohesive soil.

Features and Advantages

Fits SupAnchor standard Boomer, ROC and

Mustang rigs.

Particulary suitable for difficult ground conditions.

A high rate of installation since drilling, placing

and grouting can be performed in one single

operation.

Self drilling system eliminates the requirement

for a cased borehole.

Installation with simultaneous drilling and

grouting possible.

Easy installation in all directions, also upwards.

Suitable for working in limited space, height and

in areas of difficult access.

Simple post grouting system. Hot-dipped galvanizing for corrosion protection

Applications

Tunnelling Ground engineering

Radial bolting Slope stabilization

Forepoling Micro injection pile

Face stabilization Temporary support anchor

Portal preparation Soil nailing



SupAnchor Rock Reinforcement

Specifications

TECHNICAL DATA R 32N R 32S

Outside diameter.............................................. 32 mm

Internal diameter, average................................ 18.5 mm

External diameter, effective............................. 29.1 mm

Effective cross sectional area, average............ 396 mm

Ultimate load capacity...................................... 280 kN

Yield load capacity............................................ 230 kN

Average tensile strength, Rm........................... 720 N/mm

Average yield strength, Rp0,2.......................... 560 N/mm

GENERAL DATA

Type of steel............................................. EN 10083-1

Thread type............................................... R32. ISO 10208

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