M8X60 Stainless Steel Threaded Bolt Expansion Sleeve Anchors

We are confident to build our company into a world-class, domestic leading No wrench Anchors Extension Rod, 2 1 2 Socket Screw Anchor with Helix 3 8 Thickness 150000ft lb Torque, 1 1 4 Round Extension production base integrating scientific research, development, production and sales. Through planning, organizing, deploying and recruiting, we ensure to meet the needs of enterprise development with a certain quantity and quality of labor force and various professional talents. Our employees have rigorous work style, enthusiastic service attitude, skilled business knowledge, positive learning attitude, patiently explain to customers, and listen to customers' opinions with an open mind.

Rock Anchor – An Ideal Solution for Anchoring Needs

Are you looking for a strong and reliable anchoring system to support your construction project? Look no further than the rock anchor! The rock anchor is hot-dip galvanized, complete with rods, and is ideal for a wide range of applications, such as securing foundation walls, retaining walls, dams, tunnels, and bridges.

The carbon steel expanding rock anchor is specifically designed to fit into a hole that is 1-7/8" or 2-3/8" in diameter. Once inserted, it expands and wedges firmly against the solid rock. This unique feature makes the rock anchor an ideal choice for locations where it may be challenging to drill or grout, but strong and reliable anchoring is a must.

Once the anchor has been expanded, the greater the pull on the rod, the harder it becomes wedged. This means that the anchor can withstand high loads and is perfect for heavy-duty applications. With the rock anchor, there is no need for lead, concrete, or grouting equipment, which can save you time, hassle, and money.

The rock anchor comes furnished with 3/4" and 1" rods, ranging from 15" to 8' in length. This means that you can select the exact size and length that you need for your specific application, ensuring the best possible outcome for your project.

The hot-dip galvanization process used to create the rock anchor ensures that it is built to last. It is highly resistant to corrosion, rusting, and other forms of damage, which is essential for any construction project that needs long-term support and strength.

So, if you are looking for a strong and reliable anchoring system that is easy to install and highly cost-effective, look no further than the rock anchor. It is the perfect solution for many different applications and is sure to provide the support and strength that you need.

3/4’’ Diameter

Catalog number	Rod Length(in)	Anchor Size Closed (in)	Anchor Size Expanded (in)	Hole Size (in)	Wt Ea (Lb)
CMI001	15	1 3/4	2 3/8	1 7/8	5.0
CMI002	30				7.0
CMI003	53				10.0
CMI004	60				11.0
CMI005	72				12.0
CMI006	84				13.0
CMI007	96				15.0

1’’ Diameter

CMI101	30	21/4	31/8	23/8	14.0
CMI102	53				18.0
CMI103	72				24.0
CMI104	96				29.0

 

Specifications:

Rod:  Rod is hot dip galvanized to meet ASTM Specification A153, Class C. Diameter 3/4″ Length 30″

Drilled Hole diameter and depth:  1 7/8″ x 12″ min.

Anchor size Expanded:  Anchor size expanded is 2-3/8″.

 

Installation

1. Choose the right anchor points carefully. To ensure that rock anchoring devices work effectively, you should only use them in solid, qualified rock (Class 0 soil).

2. Drill holes in the rock with a main pipe to a depth of at least 12 inches, making sure that the anchor is in line with the person. This will help ensure that the anchor can be properly secured.

3. Make sure to drill holes with a diameter that is 1/8 inch larger than the anchor's unexpanded diameter. This will allow for proper expansion and anchoring.

4. 

4. Identify the location where the anchor needs to be installed. 

5. Pre-drill a hole that is the appropriate size and depth for the chosen anchor rod. 

6. Insert the anchor into the hole and begin turning the rod using a rod through the eye until the anchor is fully expanded on the side of the hole. 

7. In some cases, removing the wedge ties can help promote wedge expansion. 

8. For hard rock soil (class 0), drilling a 12 inch deep rock anchor using a 3/4-inch rod with a minimum final strength of 23,000 pounds or a 1-inch rod with a minimum ultimate strength of 36,000 pounds will develop the full strength of the anchor.

Grouting after rock anchor installation is an excellent way to enhance the durability of the rock structure. By using a funnel and PVC grouting pipe, the grout material can be injected into the hole and down to the top of the wedge. This process ensures that the grouting material fully covers the drilled rock surface, preventing it from weathering over time.

To ensure optimal results, it is recommended to prepare a flowing neat cement slurry (without aggregate) with a water to cement ratio between 0.4 to 0.45. This mixture is ideal for grouting rock anchorages. By using this technique, the grouting material is slowly introduced into the hole, filling every void and ensuring a strong and stable bond.

Grouting after rock anchor installation provides an additional layer of protection against rock degradation. By covering the drilled surface, the weathering effects can be minimized, thus extending the lifespan of the structure. Overall, grouting is a proactive approach that can improve the durability and stability of the rock structures.

Application

● Stabilize slopes and walls, provide tiebacks for bridges and towers, to stabilize dams, and to secure caisson bottoms.

● Civil and mining structures to counteract uplift forces acting on foundations and post-tension existing concrete structures.

Our business philosophy is that the quality of our M8X60 Stainless Steel Threaded Bolt Expansion Sleeve Anchors is one of the prerequisites for the company's survival and development, and is also the best representative of the corporate image. We seek to cultivate talents with good moral character, high skills and excellent quality that the company needs. We really design and manufacture products according to the requirements of users, and turn the traditional promotion products into helping customers design and select products that users need, so as to establish a new marketing system.

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