Hydro-Expandable Anchors for Tunnel Safety Operation

Product Description

Model	MJ350-15E
Pressure	350Bar
Power	11KW
Water Flow	15L/Min
Weight	185KG
Power Supply	380V,50HZ,3 Phases
Dimensions	98x65x72Cm

Since its introduction 30 years ago the expandable rock-bolting system has gained wide recognition in the mining and tunneling industry. This unique rock bolt consists of a welded tube folded in upon itself, sealed at one end. It is re-expanded using a high pressure water flow provided by a special pump and adapter. 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 expansion rock bolts accessible to all operators. Rock bolting systems are used to stabilize excavated rock mass in underground mines and tunnelling. Rock bolts are systematically arranged to transfer the load from the unstable surface or exterior of the rock, to the much stronger interior part of the rock. The rock mass can be reinforced by different types of rock bolts.
Expansion rock bolt pumps can be used for semi-mechanized installation, separating grip and expansion functions through remote control, These pumps allow easy switching between 240 and 350 bars. They can also be used as a high pressure washer.
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FAQ

Q: What's your advantage? A: Advanced production technology, full testing equipments, lower price, shorter delivery time,
high quality after sale guarantee. Q: What is the delivery time? A: Usually 7-30 days. Q: Are factory or trading company? A: We are a leading manufacturer in water blasting and jetting industry.Welcome to our factory any time! Q: What is your main products? A: High Pressure Water Jetting Equipment and accessories is our main products. Q: How to place the order A: You can inquiry and email us.

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