Factory Price 47mm Friction Bolt Manufacturer - FB-47 SPLIT SET BOLT (Friction Stabilizer) – TRM

FB-39 SPLIT SET BOLT

As a main reliable ground support Split Set Bolt used in applications, Dia.47mm C pipe of bolt body is the most crediable and reasonable size which can offer a perfect and safety way for ground support, so it is widely used in mines, tunnels and slopes etc. However meanwhile, the material strength and characteristic, and the welds quality between ring and the C tube, become critical points on the .

As the biggest manufacturer and supplier of Split Set products in China, we have a long-term relastionship and co-operation with our local steel mill who can supply us high quality strengthen steel strip with a very low level of Si and P in chemical components, to make sure good performance of material and let it more suitable for galvanizing to keep a good quality of Zinc Coating.

With more than 10 years experiences and technology in this field, our advantage PLC-Controled Rollformer and Auto Welders can make sure our split set bolt to meet the top-ranking international standard requirements, and get credit for a consistant good quality and service and become a suppllier of many famous mining companies from different area and countries in the world.

Welds quality is a very critical point for the split set bolt which will affect the performance of the bolt while used in ground support. We have a routine quality mornitoring and warning system to get a consistance and stable perfect welds quality, and a job traveller with pull testing records will go through the whole processes to avoid any accidents in the production.

Galvanizing and Black Split Set Bolt with different length are available. Made by high-grade of steel material, our split set bolt can get a very good zinc coating surface to have a better performance when it is used in corrosive environment.             The standard packing for FB-47 Split set bolt is 150 untis per wooden or metal pallet.

FB-39 SPLIT SET BOLT SPECIFICATION AND MECHANICAL PROPERTY

FB-47 SPLIT SET BOLT FEATURES

●Made by High Tensile Steel, and different grade of material available depends on different use environment to save the cost of ground support
●Split Set Bolt is the most easy and effective way for ground support, it’s C shape body providing an instant full length ground support all the way to the hole,  using together with mesh and plate to get a quick assemble and good support function
●Galvanizing and untreated Split Set Bolts are both available
● Full range of accessories available

FB-47 SPLIT SET BOLT FEATURES

1. What is Combi Plate and how does it make ?
The tubular C shape of the bolt generates a load transfer from the steel to the rock when installed into a slightly smaller diameter hole, and results in a frictional resistance pull-out load of the tube from the hole, and creating a full length radial pressure to the hole by increasing the contact surface of the steel to the rock due to its tubular shape, and when install onto the plate, it establishes a compressive force against the rock. When additional load bearing capacity is required, friction bolt can be grouted by cement grouts.

2. How to use and assemble ?
A pull collar fixing at the ring end enables load testing during the bolt installation. The tapered end of friction bolt can be easily inserted into the drilled holes. Friction bolt can be installed with either hand held or mechanized equipment, such as a jackdrill, a stopper, a roof bolting jumbo, or any other type of drill.

2. How to use and assemble ?
A pull collar fixing at the ring end enables load testing during the bolt installation. The tapered end of friction bolt can be easily inserted into the drilled holes. Friction bolt can be installed with either hand held or mechanized equipment, such as a jackdrill, a stopper, a roof bolting jumbo, or any other type of drill.

Latest News

A new Split Set (Friction Bolt) Welder workshop was built in our factory recently…..