Shandong Juye Mining Technology Co.,Ltd is a professional manufacturer for  Mining and ground support products.

Split Set friction rock stabilizers are manufactured for underground or above ground applications in mines, tunnels, slopes, or wherever reliable ground support is needed.

Friction Bolt  / split set bolt mining roofing bolt manufacturer from China

        Friction bolts can be load tested by fitting a special ring to the bolt prior to its installation. Pull tests can then be conducted with a hollow RAM hydraulic jack.

        Further corrosion protection can be provided by hot dip galvanizing.

Products Specification:

Specification	FS-33	FS-39	FS-42	FS-47
Dia.	33mm	39mm	42mm	47mm
Thinkness	2.5mm	2.5mm	2.5mm	3.0mm
Ring Dia.	6mm	6.5mm	7.0mm	7.5mm
Slot Size	10mm	15mm	17mm	20mm
Min.Yield Strength	78Kn	88Kn	95Kn	124Kn
Min.Breaking Strength	103Kn	116Kn	123Kn	160Kn
Max.Breaking Strength	117Kn	132Kn	140Kn	186Kn
Elongation	>16%	>16%	16%	16%
Anchoring	4-7tons	5-8tons	5-8tons	6-12tons
Domed Plate	150*150*4mm	150*150*4mm	150*150*5mm	150*150*5mm

 

Split Set Rock Bolts and Friction Bolts Work:

Are rock bolts with only 2 parts, a tube and matching domed bearing plate. the high strength steel tube is slotted along its length. One end is tapered for easy insertion into a drill hole and the other has a welded ring flange to hold the bearing plate. with the bearing plate in place, the tube is driven into a slightly smaller hole, using the same standard percussion drill that made the hole. As the tube of the rock bolt slides into place, the full length of the slot narrows, causing radial pressure to be exerted against the rock over its full contact length.

 give you a choice of tube and plate sizes.

Quality Standards:

Split Set rock bolts (friction bolts) are manufactured to a highest standard of quality. Rigid standards of quality are achieved by exhaustive quality control, testing and inspection procedures. Detailed drawings specify materials, dimensions, and tolerances. Every Split Set is identified with model number, length, factory, rolling date, and heat lot of the steel.

Mining and Ground Support:

Split Set friction rock stabilizers are used for underground or surface support in many applications:

1. Underground Mine Roof Support & Mine Roof Bolting

      2. Ground Support for Tunnels and Other Excavations

3. Ground Support for Surface Jobs

Varied Applications for Split Set Rock Bolt Systems where Stabilize, Hold and Control are Necessary:

Water tunnels     Shaft walls     Sewage tunnels     Underground storage caverns       Road tunnels

Pipe and ventilation ducts   Conveyor belts   Trolley wires    Surface excavation slopes     Highway cuts

 

 

 Split Set Rock stabilizers are an easy solution to your ground support, mine roof support and other stabilizing, holding, or anchoring problems. They are cost effective and simple to install.