MQ DTH Hammers

MQ40 Hammer_Overview MQ50 Hammer_OverviewThe Mincon MQ range of DTH hammers is designed around proven technology to perform at the top end of the performance scale compared to other tools on the market. These tools are excellent for all types of drilling applications including residential geothermal, production quarry drilling, seismic drilling and construction drilling.

  • Patented features maximize energy output and reduce service requirements.
  • Fewer internal components minimize service requirements.
  • Valveless, high frequency design ensures smooth operation.
  • Hardened wear sleeve for optimum wear resistance even in the most abrasive conditions.
  • Multi-start threads on backhead and chuck ensure easy coupling/uncoupling of hammer.
  • Unique internal mount system eliminates the need for wear shims and special assembly tools.
  • All critical internal components are heat treated under strict control to maximize tool longevity.


Imperial Specifications

MQ40 MQ50 MQ55 MQ60 MQ65 MQ68
Hammer Outside Diameter 3.82″ 4.53″ 4.88″ 5.5″ 5.75″ 5.75″
Hammer Length (Less Drill Bit) 34″ 37.6″ 41.0″ 44.8″ 44.8″ 39.4″
Backhead Spanner Flat Size 2.5″ 3.5″ 3.5″ 4″ 4″ 4″
Drill Bit Shank Type TD40 QL50 QL50 QL60 QL60 QL60
Standard Backhead Thread¹ 2-3/8″ A.P.I. Reg Pin 3-1/2″ A.P.I. Reg Pin 3-1/2″ A.P.I. Reg Pin 3-1/2″ A.P.I. Reg Pin 3-1/2″ A.P.I. Reg Pin 3-1/2″ A.P.I. Reg Pin
Minimum Bit Size 4.33″ 5.0″ 5.5″ 6″ 6.25″ 6.5″
Hammer Weight (Less Bit) 92lbs 132lbs 160lbs 216lbs 232lbs 194lbs
Drill Bit Weight 19lbs 35lbs 39lbs 44lbs 47lbs 47lbs
Piston Weight 17lbs 17lbs 39.9lbs 44lbs 44lbs 42.5lbs
Backhead Stand Off 0.030″ 0.030″ 0.030″ 0.030″ 0.030″ 0.030″
Recommended Minimum Air Package² 250cfm @ 150psi 600cfm @ 250psi 600cfm @ 250psi 600cfm @ 300psi 600cfm @ 300psi 900cfm @ 350psi

¹ Other Backhead threads available upon request

² Drilling conditions and project specifications may require larger air package to be used