Hydraulic Expandable Anchor, Prestressed Flat Anchor, Steel-Polymer Anchor, Screw Downhole Anchor, TFA Tubular Friction Anchor, Fiberglass Anchor

We supply all types of roofing bolts for the mining industry, mines, mining workings: wedge-spread, steel-polymer, steel-mineral, friction and fiberglass bolting, deep-lying bolting of high load-bearing capacity. For all types of anchors we offer washers of various modifications according to customer sizes from sheets with a thickness of 5, 6, 8 mm, etc. All products are certified and have permission from Rostekhnadzor of Russia for use in coal mines hazardous for gas and dust. tubular friction anchor TFA Tubular friction anchor TFA Scope of application: fastening the sides and roofs of mine workings in mines and shafts hazardous for dust, gas and oil. Description: TFA anchor (tubular friction anchor) is a tubular anchor made of special steel, with a C-shaped profile complete with a washer, which is installed in a hole of a smaller diameter than the diameter of the anchor, which causes the transfer of load from the metal to the rock mass. Anchors, working in tension, keep the fixed rocks from delamination, shifting and collapse. By the nature of its interaction with rocks, tubular friction anchorage is an anchorage with fastening along the entire length of the hole. The advantage of TFA anchors: - full load-bearing capacity immediately after installation; - fastening along the entire length of the hole; - Possibility of installation both using a drilling rig and using hand drills. TFA anchors are produced from black steel or hot-dip galvanized steel, with a length of 600 mm. up to 3000 mm. The size of the washer A, as well as the length of the rod L, are specified when ordering. The wall thickness of profile B can vary from 2.0 mm to 6.0 mm depending on the order. We produce and supply the following anchors: 1. Hydraulic expandable anchor 2. Pre-stressed shallow anchor 3. Steel-polymer anchor 4. Screw bottom-hole anchor 5. Tubular friction anchor TFA 6. Fiberglass anchor NOVA-TECH LLC Equipment. Accessories. Spare parts.