Blast furnace drill bit
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Concentric Casing System With BlocksInquiry Now
With Blocks
Drilling through formations with loose, unconsolidated material always comes with problems such as the bore hole caving in or collapsing. How to avoid these problems?
With years of field practice and research, Maxdrill has developed its Concentric casing system with blocks applicable for foundation piling with backfill and pebble formations and casing depth within 40 meters.
(1) diameter: 38mm-130mm.
(2) tooth shape: three cutter alloy teeth, cross alloy teeth, ball tooth thread alloy drill, cross all steel drill, etc
Structural Advantages
♦ Straightness: ensures the straightness of borehole in different topographic and geological conditions.
♦ Adaptability: ensures penetration efficiency in complex topographic and geological conditions, such as gravel and landfill of construction refuse.
♦ Lower torque: the system torque is less than eccentric casing system.
♦ Easy to unlock an re-rock: easy to re-rock after unlock.
♦ Drilling at any angle: concentric casing system can drill under horizontal, vertical and inclined conditions.
♦ Environmental: better than eccentric casing system, because of its advantages of drilling smoothly, small vibration and low noise, it is more suitable for construction in urban areas.
Carbide 3-blade Type
| Description | Diameter | Part No. | |
| mm | in | ||
| 45 | 1 3/4″ | LN01-45 | |
| 48 | 1 7/8″ | LN01-48 | |
| 51 | 2″ | LN01-51 | |
| 54 | 2 1/8″ | LN01-54 | |
| 57 | 2 1/4″ | LN01-57 | |
| 64 | 2 1/2″ | LN01-64 | |
| 76 | 3″ | LN01-76 | |
| 89 | 3 1/2″ | LN01-89 | |
| 102 | 4″ | LN01-102 | |
Carbide Cross Type
| Description | Diameter | Part No. | |
| mm | in | ||
| 35 | 1 3/8″ | LN11-35 | |
| 38 | 1 1/2″ | LN11-38 | |
| 45 | 1 3/4″ | LN11-45 | |
| 48 | 1 7/8″ | LN11-48 | |
| 51 | 2″ | LN11-51 | |
| 54 | 2 1/8″ | LN11-54 | |
| 57 | 2 1/4″ | LN11-57 | |
| 64 | 2 1/2″ | LN11-64 | |
| 76 | 3″ | LN11-76 | |
| 89 | 3 1/2″ | LN11-89 | |
| 102 | 4″ | LN11-102 | |
Carbide Thread Button Type
| Description | Diameter | Part No. | |
| mm | in | ||
| 45 | 1 3/4″ | LN10-45 | |
| 48 | 1 7/8″ | LN10-48 | |
| 51 | 2″ | LN10-51 | |
| 54 | 2 1/8″ | LN10-54 | |
| 57 | 2 1/4″ | LN10-57 | |
| 64 | 2 1/2″ | LN10-64 | |
| 76 | 3″ | LN10-76 | |
| 89 | 3 1/2″ | LN10-89 | |
| 102 | 4″ | LN10-102 | |
All-steel Cross Type
| Description | Diameter | Part No. | |
| mm | in | ||
| 35 | 1 3/8″ | L21-35 | |
| 38 | 1 1/2″ | L21-38 | |
| 41 | 1 5/8″ | L21-41 | |
| 45 | 1 3/4″ | L21-45 | |
| 48 | 1 7/8″ | L21-48 | |
| 51 | 2″ | L21-51 | |
| 54 | 2 1/8″ | L21-54 | |
| 57 | 2 1/4″ | L21-57 | |
| 64 | 2 1/2″ | L21-64 | |
| 76 | 3″ | L21-76 | |
| 89 | 3 1/2″ | L21-89 | |
| 102 | 4″ | L21-102 | |
All-steel Cross Type
| Description | Diameter | Part No. | |
| mm | in | ||
| 35 | 1 3/8″ | L21-35 | |
| 38 | 1 1/2″ | L21-38 | |
| 41 | 1 5/8″ | L21-41 | |
| 45 | 1 3/4″ | L21-45 | |
| 48 | 1 7/8″ | L21-48 | |
| 51 | 2″ | L21-51 | |
| 54 | 2 1/8″ | L21-54 | |
| 57 | 2 1/4″ | L21-57 | |
| 64 | 2 1/2″ | L21-64 | |
| 76 | 3″ | L21-76 | |
| 89 | 3 1/2″ | L21-89 | |
| 102 | 4″ | L21-102 | |
We can provide this kind of products of different diameters. We also can make other kind of furnace taphole bits according to our clients’ requirements.
Adopt high quality steel and tungsten carbide to ensure product quality.Patented drill bit designs ensure fast footage speed and good quality of drilled holes.Various specifications are available for production as per customers’ special requirement.Professional and cost‐effective.
There are many sizes and specifications of our products, so the prices will be different. Our classification only lists some commonly used specifications, please consult customer service product prices before ordering.
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