Tanrimine Metal Support Co., Ltd.

High Quality Split Set Bolt Factory - FB-33 SPLIT SET BOLT (Friction Stabilizer) – TRM

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With our abundant experience and considerate products and services, we have been recognized to be a reputable supplier for a lot of global consumers for Split Set Bearing Washer Manufacturer, Friction Bolt Head, Split Set Stabilizer Factory, Our products are regularly supplied to many Groups and lots of Factories. Meanwhile, our products are sold to the USA, Italy, Singapore, Malaysia, Russia, Poland, and the Middle East.
High Quality Split Set Bolt Factory - FB-33 SPLIT SET BOLT (Friction Stabilizer) – TRM Detail:

DOME PLATE

As a kind of ground support Split Set Bolt used in applications, Dia.33mm also has a C shape pipe of bolt body which can offer an instant frictional forces that holds the rocks together, so it is also 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 bolt.

FB-39 Split Set bolt is the smallest ground support bolt used in the application, which usually used as temporary ground support. However, the material welds quality is still very important to make sure it could have reach the support requirements. By using the same rollformers and welders to make FB-33 Split Set Bolt, we can get a more effective capacity in our production.

By using our advantage PLC-Controled Rollformer and Auto Welders, We follow the same quality control system to make the FB-33 Split set bolth even it is not for main ground support bolt, and black and galvanizing split set bolt are both  available to meet different requirements of customers come from different area of the world.

FB33 BOLT WELDMENT

The critical point for FB-33 split set bolt (Friction Bolt Stabilizers) is still the quality of welds, 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

If customer required a galvanizing FB-33 split set bolt, the zinc coating is still a critical point, low level of Si & P in raw mateiral is very important to keep good zinc coating surface to have a better performance when it is used in corrosive environment. The standard packing for FB-33 Split set bolt is 300 untis per wooden or metal pallet.

FB-33 SPLIT SET BOLT SPECIFICATION AND MECHANICAL PROPERTY

Dimensions Physical Properties Technical Data
Bolt Diameter  A 33mm Yield Strength Min. 345 Mpa (70KN) Recommended Normal Bit Size 31-33mm
Bolt Length  B 0.6-1.8m Typical 445Mpa(95KN)
Taper End Diameter  C 28mm Tube Ultimate Tensile Strength Min. 470 Mpa (100KN) Typical Breaking Capacity 107KN
Taper Slot Wide  D 2mm Typical 530Mpa(115KN)
Taper Length  E 65mm Mass per Meter 1.67 Kgs Min. Breaking Capacity 71KN
Bolt Slot Wide  F 12mm
Ring Location  G 3mm Cross Section Area 212 mm² Recommended Initial Anchorage 3-6 Tons               (27-53 KN)
Material Guage  H 2/2.5mm
Ring Wire Guage  I 6mm Hole Diameter Range 30-32mm Ultimate Axial Strain Typical 21% (Thk<16mm)
Ring Open Gap  J 5-6mm

 

Code Bolt Description Diameter Length Surface Finish Weight Packing   QTY/Pallet Ring ColorID
(mm) (mm) (Kgs)
FB33-0600 Split Set Bolt 33-600 33 600 Untreated 1.00 300 ­-
FB33-0900 Split Set Bolt 33-900 33 900 Untreated 1.50 300 ­-
FB33-1200 Split Set Bolt 33-1200 33 1200 Untreated 2.00 300 ­-
FB33-1500 Split Set Bolt 33-1500 33 1500 Untreated 2.50 300 ­-
FB33-1800 Split Set Bolt 33-1800 33 1800 Untreated 3.00 300 ­-
FB33-0600G Split Set Bolt 33-600 HDG 33 600 Hot Dip Galvanized 1.05 300 ­-
FB33-0900G Split Set Bolt 33-900 HDG 33 900 Hot Dip Galvanized 1.58 300 ­-
FB33-1200G Split Set Bolt 33-1200 HDG 33 1200 Hot Dip Galvanized 2.10 300 ­-
FB33-1500G Split Set Bolt 33-1500 HDG 33 1500 Hot Dip Galvanized 2.63 300 ­-
FB33-1800G Split Set Bolt 33-1800 HDG 33 1800 Hot Dip Galvanized 3.15 300 ­-

FB-33 SPLIT SET BOLT FEATURES

● Made by different grade of steel strip, depends on different use environment and the different requirements from customers which could be fexible to control the cost of ground support in the application.
● Though it used as a kind of temporary split set bolt for ground support, it has the same C shape body with other support bolts and have the same function and characteristics to provid an instant full length ground support all the way to the hole,  using together with mesh and plate to get a quick assemble
● Galvanizing and untreated Split Set Bolts are both available
● Full range of accessories available

FAQ of FB-33 SPLIT SET BOLT

FAQ of FB-33 SPLIT SET BOLT

1. What is FB-33 Split Set and how does it make ?
The FB-33 Split Set Bolt are made by different grade of steel strip, which is roll-formed into a longitudinal slot C shape tube along its entire length. A steel ring is full welded on the end of the tube by automatic welding device, which is to hold the plates to the rock surface.

2. What is FB-33 Split Set function and how to get a ground support ?
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.

FAQ of FB-33 SPLIT SET BOLT
FAQ of FB-33 SPLIT SET BOLT

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 hand held equipment.

Latest News


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


Product detail pictures:

High Quality Split Set Bolt Factory - FB-33 SPLIT SET BOLT (Friction Stabilizer)  – TRM detail pictures

High Quality Split Set Bolt Factory - FB-33 SPLIT SET BOLT (Friction Stabilizer)  – TRM detail pictures

High Quality Split Set Bolt Factory - FB-33 SPLIT SET BOLT (Friction Stabilizer)  – TRM detail pictures


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  • Sales manager is very enthusiastic and professional, gave us a great concessions and product quality is very good,thank you very much!
    5 Stars By Elvira from Germany - 2017.11.20 15:58
    The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
    5 Stars By jari dedenroth from Kyrgyzstan - 2018.06.28 19:27

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