Rock Hog Drilling Products, A worldwide leader of manufacturing DTH Hammers and DTH Bits
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8" DTH "HP" Hammer
RH80Q3HP - Uses QL8 Shank DTH Bit
RH80R3HP- Uses 380Shank DTH Bit

Designed for drilling 7 7/8" and larger holes.
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Features

- Wearsleeve is reversible.  
- The piston is the only moving part making this hammer very reliable.
- All external parts are hardened to resist wear.
- Designed for maximum penetration while using minimal fuel consumption.
- Still utilizes long proven piston design.
- All parts are made from US Certified Steel.
- Also available in Low Volume (LV) Models for lower air consumption.


Download RH80Q3HP and/ or RH80R3HP Hammer Manual.
Value
English
Metric
Outside Diameter
Value
Value
RH80 Model
7.1 inch
180 mm
Overall Length  (without bit)
Value
Value
RH80R Model
56.9 inch
1445 mm
RH80Q Model
56.2 inch
1427 mm
Operating Length   (API Should to Bit Face)
Value
Value
RH80R Model
57.7 inch
1542 mm
RH80Q Model
57 inch
1524 mm
Total Weight
414 lbs
188 kg
Bore Size
5.87 inch
149 mm
Piston Weight
78 lbs
35 kg
Drillpipe Connection *
4 1/2 Reg API Pin up
4 1/2 Reg API Pin up
Wrench Flats
5.9 inch
150 mm
Hole Size Range
7 7/8 inch - 10 inch
200 mm - 254 mm
Bit Shank Required
Value
Value
RH80R Model
380
380
RH80Q Model
QL8
QL8
Min Air Volume Required **
Value
Value
RH80 Model
900 cfm
24 cmm
RH80LV Model
500 cfm
14 cmm
Max Operating Pressure
500 psi
34 bar
​* Other connections available upon request
** Hammer will run on less volume but penetration rates will be       significantly slower.
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An ISO 9001: 2015 Certified Company
  • Home
  • DTH Hammers
    • 3.5" Model
    • 4" Model
    • 4.5" Model
    • 4" Reverse Circulation Models
    • 5" Model
    • 5" Reverse Circulation Models
    • 5.5" Model
    • 6" Model
    • 6.5" Models
    • 8" Models
    • Technical Info
  • DTH Bits
    • Bit Shank Styles
    • Bit Face Styles
    • Head Sizes
    • Button Styles
    • Carbo Bits
    • Technical Info
  • Drillpipe
  • Special Promotions
  • Distribution
  • About Us
  • Contact Us
  • Downloads