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Sollroc Spiral Retrac and Regular Type Tophammer Button bi

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Sollroc Spiral Retrac and Regular Type Tophammer Button bi 钻孔机械设备配件
Sollroc Spiral Retrac and Regular Type Tophammer Button bi 钻孔机械设备配件
Sollroc Spiral Retrac and Regular Type Tophammer Button bi 钻孔机械设备配件
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信息

类别
钻孔机械设备配件
品牌/型号
Sollroc Spiral Retrac and Regular Type Tophammer Button bi
附加选项
未使用
设备所在位置
Changsha Hunan
国家
中国
马斯客 ID
0AAA5B8D

定价

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详细信息

制造国
中国
成交条件
FOB, CFR, CIF, EXW
文件
Tophammer button bits catalogue (1).pdf
其他信息
Product description In Top Hammer Drilling the hammer produces a percussive force on the drill rods or tubes, which is transmitted to the drill bit. The feed device is usually attached with a hinged boom to a mobile unit. The percussive system strikes the drill rod, for example 2,000-5,000 strikes per minute, and the rotation speed can be, for example, 60-200 rounds per minute. Together these elements make it possible to drill holes in the hard rock. The excess material (cuttings) is flushed up from the bottom of the hole by means of pressurized air or water. Top hammer drills are primarily used in mining, construction and quarrying of rock material. Top hammer drilling, combined with the “drill and blast” method, makes the whole excavation process extremely efficient. SOLLROC stocks a comprehensive supply of Tophammer Drilling Tools. Whether you require bits, coupling sleeves, shank adaptors or rods, we have exactly what you need when you need it. Tophammer drilling principle 1. When the piston hits the shank, kinetic energy in the piston creates a compressive wave in the string of drilling tools, that will cause the bit to penetrate the rock 2. Piston velocity at impact ≈ 10m-s but the compressive wave in the drill steel travels at a velocity of 5180 m-s (velocity of sound in steel) 3. The bit is forced forward and penetrates the rock around 1.0 mm 4. Part of the energy not used to penetrate the rock goes back as a tensile wave and part of it as a compressive wave显示更多

Changsha SOLLROC Engineering Equipments Co., Ltd

No.55 Jiucaiyuan, Wenyi road, Furong District 410001 Changsha Hunan 湖南 中国
8
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