DHD340A 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 DHD340A shank and Mincon Sales Technicians can work with you to determine the ideal design for your application.
image

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 Size105mm4 1/8″
Number of Splines8
Height of Foot Valve Above Strike Face55.8mm2.200″
Length of Shank210mm8.25″
Bearing Surface DiameterN/A
Mincon DTH Hammer(s)4HR
image

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.
1024Concave40340AC188 – 1/2″4 – 1/2″2 – 1/2″29.120
1054.125Concave41340AC188 – 1/2″4 – 1/2″2 – 1/2″29.120
1084.25Concave42340AC188 – 1/2″4 – 1/2″2 – 1/2″29.120
1154.5Concave44340AC988 – 9/16″4 – 1/2″3 – 1/2″21022
1154 1/2Flat Face44340AF988 – 9/16″7 – 1/2″21022
1154 1/2Convex44340AV988 – 9/16″8 – 1/2″21022
1204 3/4Concave46340AC988 – 9/16″4 – 1/2″3 – 1/2″210.924
1204 3/4Flat Face46340AF988 – 9/16″7 – 1/2″210.924
1204 3/4Convex46340AV988 – 9/16″8 – 1/2″210.924
1244 7/8Concave47340AC988 – 9/16″4 – 1/2″3 – 1/2″211.425
1275Concave50340AC988 – 9/16″4 – 1/2″3 – 1/2″211.826
1275Convex50340AV999 – 9/16″5 – 1/2″4 – 1/2″311.826
1305 1/8Concave51340AC988 – 9/16″4 – 1/2″3 – 1/2″212.327
1335 1/4Concave52340AC988 – 9/16″4 – 1/2″3 – 1/2″212.728