The Swellex bolt is a folded steel tube, which is inserted into a pre-drilled hole in the rock. Water is blasted into the tube at high pressure, blowing out the fold and expanding the tube into the exact shape of the hole, adapting to every irregularity.

Product Description Water Swelling Friction Bolt is made by high strength welded tube folded itself and welded to seal at both end of bolt. Working principle: When the bolt is used in the hole, the bush with a hole is connected with a chuck of a high-pressure water pump. Start the pump and inject the water into tube, Contact Now

Swellex PM16 Swellex rock bolts General information Swellex Pm16 Minimum breaking load 160 kN Minimum yielding load 140 kN Minimum elongation 10% Expansion pressure 240 bar For further information, see also technical data page 7. Minimum elongation "A": According to EN-ISO 6892-1 where applicable. Swellex Pm16 rock bolts Size Length (m) Weight (kg)

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The bolt is expanded inside the borehole drilled into the excavation wall. The installation process is easy and very similar to other rock bolt installation processes, making Swellex rock bolts accessible to all operators. Classifications: Premium line: The Premium line is a typical tunnelling bolt, with a high yield load and good deformability.

Split Set and Swellex bolt types allow you to model a fully bonded frictional bolt type. Split Set and Swellex are presented as two different bolt types in 

Jul 05,  · The Swellex is a rock bolt made of a welded tube folded on itself and sealed at one extremity. It is expanded using a high pressure water flow provided by a special pump. The bolt is expanded inside a borehole, and the installation process is easy and very similar to other rock bolts. This makes Swellex accessible to all operators.

China Swellex Anchor Bolt (BYW), Find details about China Swellex Rock Bolt, Rock Bolt from Swellex Anchor Bolt (BYW) - Sichuan Boyuan Construction Material 

1 shipment matches swellex bolts 406 shipments | 530 shipments when including subsidiaries 5 BOLT 117785 - 3 BOLT 117784 - 7 NUT 117783 - 1 BRACKET 117767 - 3 BRACKET 117768 - 1 HOSE 117786 - 1 SWELLEX TYPE NUT 117787 - 2 PLATE Innovative Mining Products (Pty) ) ) Australia 1 shipment matches swellex bolts 18 shipments total

Swellex Rock Bolts tube are used to control the roof fall of the fully mechanized mining face, and can also be used in the construction of 

Swellex MN24 x 3.6 m bolts. Swellex PM12 x 3.6 m bolts. SP 300 RDP air operated pump H1 hydraulic Swellex pump. Pull testing Equipment Results / Benefits. Benefits Results. • Very little production time delay (no grouting or settingtime) • Ease of installation and inflation. • Available pull test Equipment.