After development and global 3rd-party testing, the IMPAKT design innovation has been proven to actively clear cuttings from the entire cutting face.  With flushing speeds increased by 25%, the resulting penetration rate has been improved by an average of 18%.

The IMPAKT face design is based on reducing the residence time of cuttings at the face.  Raceway flushing quickly clears cuttings from the entire bit face for a lower Cuttings Residence Time (CRT) and more effective energy utilization.

Traditional bits have a center ‘deadpool’

Standard designs focus on clearing the gauge

Opposing pressure causes stagnation of cuttings on the face

This ‘deadpool’ creates a cushion against effective energy transfer

Raceway ensures full-face flushing

Raceway design clears both the face and the gauge

Pressure and flow accelerate cutting removal

All buttons in contact with fresh rock maximize efficiency in each strike

Boart Longyear is now offering the HM60 lineup with drop-center and retrac design for increased hole straightness and drilling in adverse ground conditions. Our HM60 bits are available in multiple configurations to fit a variety of applications.

Specially designed rock tools for use in aggregate production where performance gains on the frontline are more achievable when equipped with the right tools.

• Aggressive button profiles for rapid engagement
• Optimized face design provides for efficient flushing
• Proven and reliable rods provide precise drilling

Gran equilibrio entre simplicidad y rendimiento:

El concepto de pistón más productivo (o "concepto de pistón maximiza la tasa de penetración")

Vástagos QL / QLX de 12 ranuras más resistentes, para maximizar la longevidad / confiabilidad / durabilidad

100% sin cámara, sin válvulas de pie problemáticas.

Ligero y simple, fácil de manejar y de sostener

Máxima vida útil, mandriles de accionamiento de superficie dura y botones de escariado traseros

1. TOP SUB
Back reaming buttons protect the top sub against wear when pulling out of the hole.

2. SOLID PISTON
Most productive piston concept, maximizing penetration rates.

3. GUIDE SLEEVE
Serves the same function as the plastic foot valve, but is a much more reliable solution.

4. DRIVE CHUCK
Hard facing protects the drive chuck and extends the life of the hammer.

Las brocas Boart Longyear están optimizadas para resultados de perforación en condiciones de terreno desafiantes. Cada diseño logra un equilibrio entre el lavado, el desgaste del manómetro y del botón frontal, la vida útil y la velocidad de penetración.

• Convexo para mayores tasas de penetración.
• Cóncavo para agujeros más rectos.
• Plano para facilitar el afilado y el mantenimiento.

Los diámetros varían de 110 a 190 mm (4,3 a 7,5 pulgadas)

Mangos preferidos por la industria

Vástagos QL / QLX de 12 estrías. Haga el cambio al más sólido y resistente al desgaste del mercado.

Sin cámara: sin válvulas de pie

Puntas para martillos BT 100% sin válvulas de pie. Maximiza la confiabilidad al eliminar una debilidad plástica. Brocas de 5 ”y 6” provistas con una válvula de pie opcional para adaptarse a los martillos tubulares tradicionales.

Insertos de carburo premium

Dureza y tenacidad ajustadas para aumentar la vida útil del carburo. Admite múltiples reajustes para ampliar la vida útil de la broca. Elija entre insertos balísticos y hemisféricos.

Optimized strength, fatigue resistance, and wear life.

DRIFTMASTER THREADS REDUCE STRESS FOR EXTENDED LIFE

The tapered thread profile provides a larger cross-section at the high-stress location (more steel where it is needed)

The unique thread profile further reduces the thread root stress compared to standard designs.

A +25% reduction in applied stress leads to an exponential increase in the fatigue life offered by DM28 and DM35.