Maxdrill Rock Tools Co., Ltd.
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  • Coupling Sleeves
Coupling Sleeves

Top Hammer Coupling Sleeves

Top hammer coupling sleeves, connecting two or more drill rods and shank adapter in one line, are essential component of top hammer drilling tools. Like extension rods, they are responsible for transmitting percussive force to drill rocks. Maxdrill’s coupling sleeves made of high-quality material are resistant to tension, bending, twisting, friction and erosion.

  • Thread: R22, R25, R28, R32, R38, T38, T45, T51
    Thread of crossover couplings: R32-R35, T38-R38, T38-T45, T45-T51
  • Length: 140 to 235mm
  • Package: in plywood or in carton
  • Productivity: 5000pcs/month
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Coupling sleeves catalogue
Specification

Top Hammer Drilling Tools for Drifting and Tunneling

Coupling L (mm) Dimensions D Part no
mm mm in
R25-R25
140 35 1 11/32 MXQ-R253414
Crossover coupling R25-R32
175 45 1 3/4 MXQ-R25R324517

Top Hammer Drilling Tools for Drifting and Tunneling

Coupling L (mm) Dimensions D Part no
mm in
R28-R28
160 37 1 29/64 MXQ-R283716
Crossover coupling R28-R32
171 45 1 3/4 MXQ-R28R324517

Top Hammer Drilling Tools for Drifting and Tunneling

Coupling Dimensions Part no
L(mm) in D(mm) in
R32-R32
150 6 45 1 3/4 MXQ-R324515
Crossover coupling R32-R35
175 6 7/8 45 1 3/4 MXQ-R35R324517
Crossover coupling R28-R32
171 6 3/4 45 1 3/4 MXQ-R32R284517
Crossover coupling R32-R38
181 7 1/8 54 2 1/8 MXQ-R38R325418
Crossover coupling R32-T38
188 7 1/2 54 2 1/8 MXQ-T38R325418

Top Hammer Drilling Tools for Drifting and Tunneling

Coupling Dimensions Part no
L mm in D mm in
R35-R35
160 6 1/4 48 1 7/8 MXQ-R354816
Crossover coupling R32-R35
171 6 3/4 48 1 7/8 MXQ-R35R324817

Top Hammer Drilling Tools for Bench Drilling

Coupling Dimensions L Dimensions D Part no
mm ft in mm in
T38-T38
190 7 1/2 54 2 1/8 MXQ-T385419
Crossover coupling T38-R32
188 7 1/2 54 2 1/8 MXQ-T38R325418
Crossover coupling T38-T45
215 8 1/2 66 2 1/2 MXQ-T38T456621

Top Hammer Drilling Tools for Bench Drilling

Coupling Dimensions Part no
L(mm) ft in D(mm) in
T45-T45
207 8 1/8 66 2 3/5 MXQ-T456620
Crossover coupling T45-T38
215 8 1/2 66 2 1/2 MXQ-T45T386621
Crossover coupling T45-T51
240 8 1/2 72 2 7/8 MXQ-T45T517224

Top Hammer Drilling Tools for Bench Drilling

Coupling Dimensions L Dimensions D Part no
mm ft in mm in
T51-T51
235 9 1/4 72 2 1/8 MXQ-T517223
T51-T51
235 9 1/4 77 3 MXQ-T517723
Crossover coupling T51-T45
240 9 1/2 72 2 7/8 MXQ-T51T457224
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Shank Adapters

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As a reliable drilling tools manufacturer with a focus on supplying “Energy-saving, Economical, Efficient” products all along, we gradually become one of the most credible Chinese manufacturers in rock drilling tools industry. Maxdrill is always committed to supplying low cost, high efficiency, energy saving and environment-friendly products for global customers. No matter what types of rocks — soft rock, loose-medium rock, hard rock and any other special formations, just tell us what you need and leave the rest to us, and our customer service is always there to help you meet your requirements.
Product List
  • Top Hammer Drilling Tools
      Top Hammer Drill Bits Top Hammer Drill Rods Shank Adapters Coupling Sleeves Tapered Drilling Tools Plug Hole Rods Integral Drill Rods H Thread Drilling Tools
  • DTH Drilling Tools
  • Overburden Drilling System
  • Rotary Drill Bits
  • Anchor Bolts
  • Taphole Drilling Tools
  • Marble and Granite Drilling Tools
  • Others
Other Products
DTH Drilling Tools

DTH Drilling Tools

Anchor Bolts

Anchor Bolts

Rotary Drill Bits

Rotary Drill Bits

Products
  • Top Hammer Drilling Tools
  • DTH Drilling Tools
  • Overburden Drilling System
  • Rotary Drill Bits
  • Anchor Bolts
  • Taphole Drilling Tools
  • Marble and Granite Drilling Tools
  • Others
Maxdrill Rock Tools Co., Ltd.

Maxdrill Rock Tools Co., Ltd.

Hedy Huang
office@kemaico.com
+1 847-913-6878
+86-851-88639106
Industries
  • Mining
  • Tunneling
  • Quarrying
  • Water Well
  • Construction
  • Piling
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