CT55 and CT67 for underground
CT55 and CT67 for underground
- Hole diameter CT55 (new ST58)
- 89.0 - 127.0 mm (3.5 - 5.0 in.)
- Hole diameter CT67 (new ST68)
- 102.0 - 152.0 mm (4.0 - 6.0 in.)
- Reaming bits
- 152 - 204 mm
The curved thread system really makes a difference in long hole drilling. With CT55 and CT67 you get a predictable performance without interruptions, as well as trouble-free coupling and uncoupling at lower cost per meter.
Features
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Unique curved design
The unique, patended curved thread design provides strength where it is needed and distributes the load evenly on the thread revolutions.
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Stronger geometry
The stronger geometry minimizes tool breakages and boost service life on drill tubes with +30-60%, compared to standard ST58 and ST68 products. The extended service life dramatically reduces the cost per meter, but also means less manual handling of heavy products.
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Enabler for automation
Predictable discards, long service lives and simple coupling characteristics makes CT system an ideal solution for automated drilling.
Product specifications
- Hole diameter CT55 (new ST58)
- 89.0 - 127.0 mm (3.5 - 5.0 in.)
- Hole diameter CT67 (new ST68)
- 102.0 - 152.0 mm (4.0 - 6.0 in.)
- Reaming bits
- 152 - 204 mm
- Tube diameter CT55
- 76 mm
- Tube diameter CT67
- 87 mm
Curved thread innovation
Packed with power
Innovated to cut costs. Uncoupling problems and sudden transversal breakages cost lots of time and are entirely unpredictable. The CT55 and CT67 top hammer tool system is built to last and deliver without interruptions. Check out other features, benefits and values.
Related Products and Services
Equipment
Surface drill rigs
Designed to work in the toughest operating conditions, our surface drill rigs combine power with precision and are designed for efficiency and operator comfort.
Equipment
Underground drill rigs
Available in a variety of feed lengths, boom configurations and size classes, our underground drill rigs maximize productivity while delivering the lowest cost per meter.
Services
Rock tools services
In addition to supplying your operation with the premium brand of rock tools, our range of added services and digital solutions support your drilling operations, everyday – all year round.
Related products
CT55 and CT67 for surface
- Hole diameter CT55 (new T51)
- 89.0 - 127.0 mm (3.5 - 5.0 in.)
- Hole diameter CT67 (new GT60)
- 102.0 - 152.0 mm (4.0 - 6.0 in.)
- Flushing house
- 70 mm (DXi), 80 mm (DPi), 90 mm (DPi)
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