WTC 2024 has been held successfully in Shenzhen, China from April 22nd to April 25th, which attracted more than 3,000 visitors from over 60 countries, included 486 high quality papers and set up 195 academic presentations on tunnel technology. In this exhibition, equipment factories, tunnel construction material manufacturers, experts, scholars, purchasers, tunnel contractors… from …
YouTube video: https://youtu.be/kzeRktj0NE4 On April 15th, 2024, leaders of the National Railway Group went to the exit of Gayi Tunnel to observe the construction of the anchoring and injection machine. The R25 built-in resin prestressed self drilling hollow bolt jointly developed by ONTON and the Railway Construction Research Institute was used for rapid …
Built-in-Resin Prestressed Hollow Bolt Consctruction Read More »
The stability of a structure entirely depends on how strong the foundation is. This explains why many are considering micropiles for ground improvement and rock stability. Though they are smaller in size, micropiles are efficient in handling heavy architectural structures. The best thing about micropiles is that they not only work in congested and low …
Guide to Micropiles for Ground Improvement and Rock Stability Read More »
YouTube video: https://youtu.be/kzeRktj0NE4 Advantages of built-in resin prestressed self drilling hollow bar a. Embedded resin capsules with tapered resin outlet anchor head: • Solve the problems such as resin capsules fall down from vault construction and difficulty in advancing resin capsules in slightly collapsed holes, ensuring that the resin capsules are pushed to the …
Built-in-Resin Prestressed Self Drilling Hollow Bar – ONTON’s New Patent Read More »
Rock bolts are crucial elements in stabilizing rock formations in various industries, from mining to civil engineering. They are used to reinforce and support rock structures to prevent them from collapsing or shifting, which can pose a serious threat to workers and structures. There are several types of rock bolts, each designed for specific applications. …
Rock bolts application and types you should know Read More »
On August 4th, 2023, ONTON cooperated with Sichuan Xinzhu (Jambo manufacturer) to conducted a bench test on the anchor trolley in the Xinzhu factory, mainly doing R25 built-in resin prestressed hollow anchor bar. 1. Test of all construction steps and action processes of the equipment meets on-site …
R25 Built-in Resin Prestressed Self Drilling Anchor Bar Bench Test Read More »
On May 13th, 2023, China Railway Equipment Company and ONTON held a Jambo construction prestressed test on R25 self drilling hollow bar at Zijia Tunnel project on the Yaonan Expressway. Two tests were conducted: R25 prestressed hollow anchor bar with expansion shell R25 anchor bar prestress requirement is >60kN, we tested …
Jumbo Construction Prestressed Test on R25 Self Drilling Hollow Bar Read More »
Experienced buyers may find there is a difference in the model types of self-drilling anchor among all suppliers. Naming methods Atlas MAI (now belongs to Orica) self-drilling anchors are identified by the combination of alphabets & numbers. For instance, R32N R means the rope thread. 32 is the outer diameter of hollow bar. N represents …
What should we concern when purchasing self-drilling anchor? Read More »
Hollow bar anchor manufacturers carry out tensile test to ensure the self-drilling anchor rods are strong enough. The values are plotted on a coordinate graph – with strain elongation along the x-axis and stress, typically in MPa, along the y-axis. Figure 1 is a typical tensile train/ stress curve. Figure 2. Tensile capacity from …
As a manufacturer of self-drilling anchor bars, Onton always pays attention on the quality of products by learning from European factories. The normal length of self-drilling anchors is 3 to 9 meters. In order to increase the drilling depth, bolt connecting sleeves are applied. The coupling sleeves is formed with an internally thread …
Coupling for Anchor Bars, end chamfering process Read More »
Copyright© 2023 ONTON Technology Co., Ltd.
