Sandwich System
- -Sandwich System is designed by TONRY and has obtained patent certificate,two types of Sandwich System with single yield tube and double yield tube.
- -Sandwich system is used for buffering and releasing the pressure of the rocks to protect the bolts from damaging and breaking
- -It could increase the elongation of the bolts.Especially match with cable bolts to form a high tensile strength,high elongation and high anti-shearing capacity support system.
- -This system is also match with Full threadbar bolt,Grooved bolt,Sharp end bolt,Slot&wedge bolt and so on.
Product Details
Sandwich System Specification
Damping through the nut in the casting resin anchor agent precisely to the role of stirring and then pre-stressed. Let pressure device in a high pressure situation,so that yield tube can be deformed to pressure, buffer and release the pressure of surrounding rock in order to protect against damage to the role of anchor.
Tonry with the manufacturer specialized in developing new support products,according to different requirements of a variety of customized products from different mining companies.
The following is the annual production capacity of several major products.
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