QL50 Shank

Mincon has a comprehensive range of DTH Drill Bits to suit all types of applications and drilling processes. There are a number of different drill bit head designs for the QL50 shank and Mincon Sales Technicians can work with you to determine the ideal design for your application.
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Key Features and Benefits

  • Manufactured from premium alloy steels.
  • Proprietary heat treatment processes to provide maximum service life and durability.
  • Compressive residual stress layer added to improve metal fatigue resistance.

For more information:

+40 314 253 800
info@romned.ro

Ron van Dam
CEO

SpecificationsMetricImperial
Minimum Hole Size130mm5″
Number of Splines12
Height of Foot Valve Above Strike Face54.4mm2.030″
Length of Shank240mm9.47″
Bearing Surface Diameter76.65mm3.018″
Mincon DTH Hammer(s)MP50, MP55, 5DHQL
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Note: The Part Numbers below require the Carbide Insert type code to be added on the end to complete them. For a combination of carbide inserts use the gauge row code first and then the face code.

Carbide Insert Codes
Dome (Spherical)D
BallisticB
Semi-Ballistic (Parabolic)P
Conical (Spike)S
Dome PCDY
DiameterFace TypePart NumberNo. x Button Dia (inch)Flushing holesWeight Approx.
mminchOuterInnerFrontKgs.Lbs.
1275Concave50QL50C588 – 5/8″4 – 1/2″3 – 1/2″215.935
1305 1/8″Concave51QL50C588 – 5/8″4 – 1/2″3 – 1/2″215.935
1335 1/4″Concave52QL50C588 – 5/8″4 – 9/16″3 – 9/16″216.336
1405 1/2″Concave54QL50C588 – 5/8″4- 9/16″4- 9/16″217.338
1405 1/2″Concave54QL50C599 – 5/8″6 – 9/16″6- 9/16″317.338
1405 1/2″Flat Face54QL50F588 – 5/8″7 – 5/8″217.338
1405 1/2″Flat Face54QL50F599 – 5/8″9 – 9/16″317.338
1405 1/2″Convex54QL50V599 – 5/8″6- 9/16″4- 9/16″317.338
1465 3/4″Concave56QL50C588 – 5/8″4- 5/8″4- 5/8″217.739
1405 3/4″Concave56QL50C599 – 5/8″6 – 9/16″6- 9/16″317.739
1465 3/4″Flat Face56QL50F588 – 5/8″8 – 5/8″217.739
1405 3/4″Convex56QL50V599 – 5/8″3 – 5/8″5 – 5/8″317.739
1495 7/8Concave60QL50C588 – 5/8″4 – 5/8″4 – 5/8″218.641
1526Concave60QL50C588 – 5/8″4 – 5/8″4 – 5/8″218.641