Product Despcription
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Product Despcription
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Product Despcription
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Product Despcription
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Product Despcription
During the construction of undergroud works, it is very common to encounter soft rock, fractured zone and large deformation due to high ground stress. In the case of serious collapsing, extra-long anchor is needed instead of ordinary one.
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Product Despcription
During the construction of undergroud works, it is very common to encounter soft rock, fractured zone and large deformation due to high ground stress. In the case of serious collapsing, extra-long anchor is needed instead of ordinary one.
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Product Despcription
During the construction of undergroud works, it is very common to encounter soft rock, fractured zone and large deformation due to high ground stress. In the case of serious collapsing, extra-long anchor is needed instead of ordinary one.
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Product Despcription
During the construction of undergroud works, it is very common to encounter soft rock, fractured zone and large deformation due to high ground stress. In the case of serious collapsing, extra-long anchor is needed instead of ordinary one.
Maxdrill self-drilling anchor embodies drilling, grouting and anchoring as a whole.
Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It's irreplaceable in narrow construction environment.
Graphite Powder is our ultra-fine powder. Graphite powders are composed primarily of ultra-fine particles classified as per ultrafine size for various applications.
It has 98-99% of Fixed Carbon content. It has self-lubricity and plasticity in high temperatures.
Applications
Drilling
Conductive paints
Electrically and thermally conductive coatings
Product description
Underground construction double corrosion protection anchor bar based on the advanced molding technology, has the characteristics of high-strength, lightweight. Under the prerequisite of ensuring the bolt ultimate tensile strength, reasonable grouting aperture increases, solve the blocking problem. Makes grouting more smoother, fuller and more dense. While reducing the engineering cost and builders working strength, have achieved good results in every aspects.
Product nameUnderground construction double corrosion protection anchor bar
Length(m)2.0-4.0
Weight(kg/m)12.0-24.0
Outer(mm)38
Innner(mm)19
Ultimate load(kn)500
Yield load400
UsedMine, tunnel, slope, foundation pit
Application
Tunnelling ground engineering
• radial bolting • slope stabilization
• forepoling • micro injection pile
• face stabilization • temporary support anchor
• portal preparation • soil nailing
Our company
Chengdu luhui anchor material co. Ltd is establish in 2007, specialized in anchor engineering materials research and development production sales.
We have developed many years hollow grouting, automatic anchor pole and prestressed anchor rod, all products are strictly in iso9001:2008 of the company quality management system, innovation, quality and credit first is our eternal goal.Our products have been widely used in the domestic railway, highway, hydropower station and the foundation pit of high-rise buildings for many years, and has been unanimously recognized the owner, the engineering company, the construction company, the supervisor.
Packing & delivery
Packing details: bundle and accessories packed in case
Delivery details: 15-30 days
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.
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.
(1)diameter: r25, r32, r38, r51, t76, t111
(2)max. Tensile load: 200-1900kn.
(3)yield load: 150-1600kn.
(4)standard length: 1-6m, we can supply any length according to construction require.
(5)productivity: 3000000m/month
We can supply all the accessories including anchor bits, coupling, nuts, plates, and centralizer.
Anchor bolt r25n
Outside diameter(mm) 25
Internal diameter (mm ) 14
Ultimate load (kn) 200
Yield load (kn) 150
Weight (kg/m) 2.3
Thread type iso10208
Type of steel en10083-1
Left or right length(m) 1-6m, we can supply any length according to construction require 1-6m
Options of anti-corrosion hot-dipped galvanization
Usually anchor bar in bundles accessories in carton/pallet also depend on the customer's requirement
R thread self drilling hollow bar anchor is composed by hollow anchor bolt, anchor nut, anchor plate, anchor coupler, drill bit, centralizer, and the hollow anchor bars can be cut and lengthened by coupling on request.
Functions:
R thread self drilling hollow bar anchor is an advanced system which can ensure the anchoring effect for complex ground conditions. It can be integrated with the functions of drilling, grouting and anchoring.
Conditions:
Tunneling
Mining
Slope Stabilization
Foundation Support
Features and advantages:
1. Safe, reliable, and time saving.
2. Simple installation & operation.
3. Choice of drill bits for different ground conditions.
4. Grouting works synchronize with drilling or after drilling. Grout can fill fractures effectively.
5. Anchor bars can be cut and lengthened on request, applying to narrow spaces.
6. It provides higher bonding stress than smooth steel pipe depending on continuous wave thread.
Features
1. Safe, reliable, and time saving.
2. Simple installation & operation.
3. Choice of drill bits for different ground conditions.
4. Grouting works synchronize with drilling or after drilling. Grout can fill fractures effectively.
5. Anchor bars can be cut and lengthened on request, applying to narrow spaces.
6. It provides higher bonding stress than smooth steel pipe depending on continuous wave thread.
Application
Tunneling
Mining
Slope stabilization
Foundation support
FH products are Pure nonionic derived the endosperm of guar polysaccharide (Cyamopsos tetragonolobus). The products are unique with ultra-high viscosity with fastest hydration characteristics as shown in Figure 1 below. Also, when added with other drilling components, to seawater, a KCl solution or other aqueous system, the product suspension disperses readily without lumping, even under low-shear conditions generating most of its full viscosity within just a few minutes.
PRODUCT COMPATIBILITY:
FH series of products are compatible with most of the chemicals and auxiliaries used in drilling operations. However, the products are not compatible with Arabic and Crystal gums. Also, in presence of borates they form elastic gel.
PRODUCT APPLICATIONS:
FH series of products are natural, high viscosity, fast hydrating non-Newtonian hydrocolloids with suitable cross linking components in diesel slurries and are versatile for continuous mix applications, where extremely fast hydration and subsequent viscosity development is required. They are excellent viscosifiers, stabilizers, thickeners and suspending agent for use in oil-drilling, workover fluids and several other oilfield applications like hydraulic fracturing, oil well stimulation, mud drilling, oil well capping, flocculent and liquid shoring etc. The product is used as a surfactant; synthetic polymer and deformer ideally suited for all rheological requirements of water based and brine based drilling fluids.
Specifications:-
PRODUCT : FH-35 FH-38 FH-42
CAS No. : 9000-30-0 9000-30-0 9000-30-0
Granulation : FINE FINE FINE
APPEARANCE : OFF WHITE POWDER
MOISTURE : 8% Max. 8% Max. 8% Max.
PROTEIN (N X 6.25) : 5.0% Max 5.0% Max 5.0% Max
ASH : 1.5% Max. 1.5% Max. 1.5% Max.
ACID INSOLUBLE RESIDUE (A.I.R.) : 3% Max. 3% Max. 3% Max.
CARBOHYDRATE (incl gum by difference) : 82% Min 82% Min 82% Min
pH (1% Solution) : 5.5 ? 6.5 5.5 ? 6.5 5.5 ? 6.5
VISCOSITY :
(0.48% Product in 2% KCL Sol. 2.5 mins mix @1500 RPM in waring blender) Fann 35sa Viscometer at 300 RPM, 25�C 3 Mins : 35 3 Min:38 3 Mins : 42
5 Mins : 37 5 Mins : 39 5 Mins : 43
30 Mins : 39 30 Mins : 42 30 Mins : 45
60 Mins : 40 60 Mins : 43 60 Mins : 47
