Jump to content

PowerCarbide®
GC81 and SH70

The greatest innovations in years.
Extends service life and grinding intervals.

Top Hammer PowerCarbide

Saves you time and money

Our latest PowerCarbide® addition is the most significant carbide innovation in the rock drilling industry for decades. The new grades, the GC81 (Gradient Carbide) and SH70 (Self-Hardening), are based on improved knowledge about the wear of the drill bit in different types of rock.

Both the grinding intervals and service life are extended by up to 30% compared with standard carbides. This translates into lower cost per drilled meter, less time for changing bits and improved safety.

World-leading knowledge

Since the carbide buttons are the first to attack the rock when you start drilling, it is crucial that they are up for the job. Then it is good to know that Sandvik was the first company in the drilling history to manufacture rock tools with cemented carbide, and we are working continuously on developing new and more advanced carbide grades. We have more R&D capacity with top of the line laboratory equipment and a large team of experts for cemented carbide development than anyone else in the industry. The fact that we control the whole chain, all the way from our own tungsten mine to the production of drill bits, is a unique enabler for developing rock tools. We are also currently alone in having a global carbide recycling system.

Having the most advanced range of carbides means there is almost certainly something in our product range that is perfect for your conditions.

New members of the PowerCarbide® family

GC81 – Hard and tough at the same time

GC81 is developed for abrasive ground conditions with high silica levels in the rock. A new, unique method makes it possible to produce buttons that are wear-resistant on the outside, while the center provides a toughness that pushes the service life and grinding intervals even further.

 

SH70 –  Hardens during drilling

SH70 is a grade with homogeneous properties throughout the material. We call it “self-hardening” because it has the ability to get more wear resistant as you drill with it, due to enhanced deformation hardening. The surface hardness is continuously ‘refilled’, which means that the hard top never wears off.
The hardening effect is greatest in hard and competent ground.

Sandvik GC81 and SH70 availability selection chart

Drill bits used for face drilling and bolting, 35-51mm

  FLUSHING HOLE, MM BUTTONS, MM ANGLE   DIMENSION, D PART NUMBER
BIT THREAD FRONT,
NO SIZE
GAUGE,
NO SIZE
FRONT,
NO SIZE
GAUGE,
NO SIZE
FRONT GAUGE MM INCH  
R25 1X4 1X6 2X7 5X9 15° 30° 35 1 3/8” 7732-4435-S70
R25 1X4 1X6 2X7 5X9 15° 30° 35 1 3/8” 7732-4435-S80
R28 1X6 1X6 2X7 5X9   35° 38 1 1/2” 7739-5238-S70
R28 1X6 1X6 2X7 5X9   35° 38 1 1/2” 7739-5238-S80
R32 1X5 2X6 2X9 5X10   35° 43 1 11/16” 7733-5243A-S70
R32 1X5 2X6 2X9 5X10   35° 43 1 11/16” 7733-5243A-S80
R32 3X4,5 1X4,5 3X8 6X10   25° 45 1 3/4” 7733-5345A-S70
R32 3X4,5 1X4,5 3X8 6X10   25° 45 1 3/4” 7733-5345A-S80
ALPHA330 2X5 1X5 2X9 7X10 10° 30° 43 1 11/16” 7767-5143A-S80
ALPHA330 2X6 1X6 2X9 7X10 10° 30° 45 1 3/4” 7767-5145A-S70
ALPHA330 2X6 1X6 2X9 7X10 10° 30° 45 1 3/4” 7767-5145A-S80
ALPHA330 3X4,5  1X4,5 3X9 8X10 10° 30° 48 1 7/8” 7767-5148A-S80
ALPHA330 1X5 2X6 2X9 5X10   35° 43 1 11/16” 7767-5243A-S70
ALPHA330 1X5 2X6 3X9 5X10   35° 43 1 11/16” 7767-5243A-S80
ALPHA330 3X4,5 1X4,5 3X8 6X10   25° 45 1 3/4” 7767-5345A-S70
ALPHA330 3X4,5 1X4,5 3X8 6X10   25° 45 1 3/4” 7767-5345A-S80
ALPHA360 3X4,5 1X4,5 3X9 8X10 10° 30° 48 1 7/8” 7568-5148A-S80
ALPHA360 3X4,5 1X4,5 3X9 8X10 10° 30° 48 1 7/8” 7568-5148A-S70
ALPHA360 3X5 1X5 3X9 6X10   30° 48 1 7/8” 7568-5348A-S70
ALPHA360 3X5 1X5 3X9 6X10   30° 48 1 7/8” 7568-5348A-S80

Drill bits used for long hole drilling 89-115mm

  FLUSHING HOLE, MM BUTTONS, MM ANGLE DIMENSION, D PART NUMBER
BIT THREAD FRONT,
NO SIZE
GAUGE,
NO SIZE
FRONT,
NO SIZE
GAUGE,
NO SIZE
FRONT GAUGE MM Inch  
ST58 4x10   6x12 10x12   35° 89 3 1/2" 7528-8489-R70
ST58 4x10   6x12 10x12   35° 89 3 1/2" 7528-7389-R70
ST58 3x12   8x11 9x13 10° 35° 89 3 1/2" 7528-8589-S70
ST58 3x12   8x11 9x13 10° 35° 89 3 1/2" 7528-8589-S81
ST68 4x10   8x12 10x12   35° 102 4" 7529-8402-R70
ST68 4x10   8x12 10x12   35° 102 4" 7529-7302-R70
ST68 4x10   8x14 10x14   35° 115 4 1/2" 7529-8415-R70
ST68 2x15   5x14 8x16   35° 102 4" 7529-8902-S81

Drill bits used for bench drilling, 54-127mm

  FLUSHING HOLE, MM BUTTONS, MM ANGLE DIMENSION, D PART NUMBER
BIT THREAD FRONT,
NO SIZE
GAUGE,
NO SIZE
FRONT,
NO SIZE
GAUGE,
NO SIZE
FRONT GAUGE MM Inch  
T35 3x6 1x6 3x9 6x11   30 54 2 1/8 7517-4654A-S81
T38 3x8 1x8 3x11 6x12   30 64 2 1/2 7514-4664A-S81
T38 3x8   3x11 6x12   35 64 2 1/2 7514-4664-R70
T38 3x8   3x12 6x13   35 70 2 3/4 7514-4670-R70
T45 4x8   5x11 8x12   35 76 3 7515-4876-S70
T45 4x8   5x10 8x11   35 76 3 7515-4876-R70
T45 4x9   5x12 8x13   40 89 3 1/2 7515-4889-R70
T45 4x8   5x11 8x12   35 76 3 7515-4876-S81
T51 4x10   5x12 8x13   35 89 3 1/2 7516-4889-S70
T51 4x10   5x12 8x13   40 89 3 1/2 7516-4889-R70
T51 4x10   5x12 8x13   35 89 3 1/2 7516-4889-S81
T51 5x9   7x11 10x12 10 35 89 3 1/2 7516-7089-S70
T51 5x10   8x12 10x13 10 35 102 7516-7002-S70
GT60 5x10   8x12 10x13 10 35 102 7620-7002-S70
GT60 3x13   6x13 9x16   35 115 4 1/2 7620-8115-S81
GT60 3x13   6x13 9x16   35 115 4 1/2 7620-8115-S70
GT60 3x14   10x13 9x16   35 127 7620-4927-S81
GT60 3x14   10x13 9x16   35 127 7620-4927-S70

Drill bits used for small hole drilling, 28-38mm

  FLUSHING HOLE, MM BUTTONS, MM ANGLE DIMENSION, D PART NUMBER
BIT THREAD FRONT,
NO SIZE
GAUGE,
NO SIZE
FRONT,
NO SIZE
GAUGE,
NO SIZE
FRONT GAUGE MM Inch  
11° 1x5 1x5 2x7 5x8   35° 36 1 7/16" 7776-4436-B70
11° 1x6 1x5 2x7 5x8   35° 38 1 1/2" 7776-4438-B70
12° 1x5 1x5 1x7 4x7   35° 28 1 1/8" 5795-6428-B70
12° 2x4 1x5 2x7 4x7   35° 30 1 3/16" 5795-6530-B70
12° 1x4 1x6 2x7 5x7   35° 33 1 9/64" 5770-4433-B70
12° 2x4,5 2x5 2x7 6x7   40° 33 1 9/64" 5770-5433M-B70
12° 2x4 1x4 2x7 6x8   40° 35 1 3/8" 5770-5435-B70

* Based on comparison with a standard thread.

Test results and calculations are to be considered as results reached under certain and controlled conditions. These test results and calculations should not be treated as specifications and Sandvik does not guarantee, warrant or represent the outcome of test results or calculations in any or all circumstances.

We would like your consent

Sandvik and our vendors use cookies (and similar technologies) to collect and process personal data (such as device identifiers, IP addresses, and website interactions) for essential site functions, analyzing site performance, personalizing content, and delivering targeted ads. Some cookies are necessary and can’t be turned off, while others are used only if you consent. The consent-based cookies help us support Sandvik and individualize your website experience. You may accept or reject all such cookies by clicking the appropriate button below. You can also consent to cookies based on their purposes via the manage cookies link below. Visit our cookie privacy policy for more details on how we use cookies.