Anchor drill

The development of bolt drilling rigs has gone through more than 30 years, and now there are leg-type electric bolt rigs, rig-type bolt rigs, outriggers and DIN rail type hydraulic bolt rigs, outrigger type pneumatic bolt rigs, etc. Pneumatic bolt machine manufacturers step by step into the right track.

Coal mine bolt rigs are mostly rotary type. To match the promotion of small-diameter resin bolts, the drill bit is 27-29mm.

Rotary drill bit, its structure type is mostly two wings symmetrical, two wing asymmetry and two wings reinforcement type, can be used to drill different rock selection. The drill pipe is machined from B19 (majority) or B22 (few) hexagonal hollow steels. After many years of joint research, the bolt bit and drill rod can initially meet the requirements of bolt support under certain conditions.

However, due to the development, research, and production of anchor hole drilling equipment, it is not compatible with the rapid development of bolting technology. The traditional pneumatic rock drill and coal-powered drill are widely used in construction of coal mine bolts. Special bolt hole drilling equipment, the use of foreign imports of equipment more, but due to high prices of imported equipment and spare parts supply is not timely, coal mine users want to use domestic bolt hole drilling equipment.

Stainless Steel Twill Dutch Weave Mesh

Stainless Steel Twill Dutch Weave Mesh, this kind of woven steel mesh is weaved by a special weave technology, which integrate the Dutch weave and twill weave. The thicker warp wire and the thinner weft staggered. Each warp wire shuttles up and down with the weft wire.

Features: Stainless steel wire mesh screen has the advantages of smooth surface, high hardness, constant mesh, no deformation, high temperature resistance, corrosion resistance, flexible network, excellent filtration performance, good filtration accuracy, high load intensity, high temperature resistance, low temperature resistance and so on

Material: SS304, SS 316,SS316L

Use: Stainless Mesh is mainly used for gas, liquid filtration and other medium separation; widely used in precision pressure filter, fuel filter, vacuum filter, filter material, do aerospace, oil refining, pharmaceutical, sugar, oil, chemical industry, chemical fiber, rubber, tire manufacturing, metallurgy, food, health industry and scientific research.

Specification: The standard roll width: 1m-2m. Standard roll length: 30-50m.The steel mesh in special width and length can be produced according to customers` requirements.

Structural drawing:

The warp wire (D1) : all longitudinal braided lines.

The weft wire (D2) : all horizontal weaving lines.

Aperture : the distance between two meridians or two weft.

Mesh number: number of mesh holes per inch.

Thickness (T) : thickness of the wire mesh.

Speciation List:

Stainless Steel Twill Dutch Weave Mesh,Extra Fine Stainless Steel Mesh,Stainless Steel Screen Mesh,Twill Dutch Weave Mesh

Anping Xinzheng Metal Wire Mesh Co., Ltd , https://www.sievingmesh.com