HL820ST
Request a quote
Top hammer rock drills
HL820ST
- Hole size
- 54 - 89 mm
- Percussion power
- 21 kW
- Percussion rate
- 42 - 53 Hz
Designed for DL311 and DL321 underground longhole drills, Sandvik HL820ST hydraulic top hammer rock drill can drill holes ranging between 54-89 mm in diameter and 38 m in depth.
Features
-
Robust rock drill
The main body modules are connected by four side bolts, minimizing the number of joint faces and large contact surfaces. Its simple percussion module has only two moving parts: the piston, distributor sleeve and moving parts are never in contact with the drill body modules.
Robust rock drill
The main body modules are connected by four side bolts, minimizing the number of joint faces and large contact surfaces. Its simple percussion module has only two moving parts: the piston, distributor sleeve and moving parts are never in contact with the drill body modules.
The main body modules are connected by four side bolts, minimizing the number of joint faces and large contact surfaces. Its simple percussion module has only two moving parts: the piston, distributor sleeve and moving parts are never in contact with the drill body modules.
-
Two rotation motor variants
To meet the torque and RPM requirements of different hole diameters and rock formations, the rotation motor comes in two types.
Two rotation motor variants
To meet the torque and RPM requirements of different hole diameters and rock formations, the rotation motor comes in two types.
To meet the torque and RPM requirements of different hole diameters and rock formations, the rotation motor comes in two types.
-
Patented power extractor (option)
The drill offers the optional power extractor for manual or automatic opening of rock tool joints when using one-hole or fan automation.
Patented power extractor (option)
The drill offers the optional power extractor for manual or automatic opening of rock tool joints when using one-hole or fan automation.
The drill offers the optional power extractor for manual or automatic opening of rock tool joints when using one-hole or fan automation.
Learn more about HL820ST features
Adjusts to various drilling conditions
The drill stabilizer adjusts percussion power to match variations in rock conditions, ensuring reliable rock-to-bit contact, high penetration rates, energy transfer and an extended tool lifespan.
Product specifications
HL820ST operating manual and spare parts
Operating manuals and spare parts can be found on the My Sandvik customer portal.
- Hole size
- 54 - 89 mm
- Percussion power
- 21 kW
- Percussion rate
- 42 - 53 Hz
- Percussion pressure
- 80 - 200 bar
- Rotation (max.)
- 200 bar
- Hole size
- 54 - 89 mm
- Percussion power
- 21 kW
- Percussion rate
- 42 - 53 Hz
- Percussion pressure
- 80 - 200 bar
- Rotation (max.)
- 200 bar
- Rotation motor types
- OMT200, OMT250
- Weight
- 260 kg
Related Products and Services
Our range of top hammer rock drills
RD925
- Hole size
- 89 - 127 mm
- Percussion power
- 25 kW
- Percussion rate
- 69 Hz
RD314
- Hole size
- 43 - 51 mm
- Percussion power
- 14 kW
- Percussion rate
- 110 Hz
HL650
- Hole size
- 64 - 102 mm
- Percussion power
- 18 kW
- Percussion rate
- 44 - 56 Hz
HF820T
- Hole size
- 64 - 127 mm
- Percussion power
- 23 kW
- Percussion rate
- 60 Hz
HL1060T
- Hole size
- 89 - 152 mm
- Percussion power
- 25 kW
- Percussion rate
- 38 Hz
RD1840C
- Hole size
- 140 - 178 mm (6 - 7 )
- Percussion power
- 49 kW
- Percussion rate
- 39 Hz
RD921
- Hole size
- 64 - 89 mm
- Percussion power
- 21 kW
- Percussion rate
- 71 Hz
RD1635CF
- Hole size
- 89 - 152 mm
- Percussion power
- 35 kW
- Percussion rate
- 45 Hz
RD927
- Hole size
- 89 - 140 mm
- Percussion power
- 27 kW
- Percussion rate
- 56 Hz
HL710
- Hole size
- 64 - 115 mm
- Percussion power
- 20 kW
- Percussion rate
- 42 - 52 Hz
HL510
- Hole size
- 43 - 51 mm
- Percussion power
- 16 kW
- Percussion rate
- 59 Hz
RD414
- Hole size
- 45 - 76 mm
- Percussion power
- 14 kW
- Percussion rate
- 56 - 78 Hz
RD930
- Hole size
- 115 - 152 mm
- Percussion power
- 30 kW
- Percussion rate
- 45 Hz
HL1560T
- Hole size
- 89 - 152 mm
- Percussion power
- 33 kW
- Percussion rate
- 40 Hz
RD520
- Hole size
- 43 - 64 mm
- Percussion power
- 20 kW
- Percussion rate
- 75 Hz
RD106
- Hole size
- 22 - 45 mm
- Percussion power
- 7 kW
- Percussion rate
- 65 - 85 Hz
RD525
- Hole size
- 43 - 64 mm
- Percussion power
- 25 kW
- Percussion rate
- 93 Hz
HL820T
- Hole size
- 64 - 127 mm
- Percussion power
- 21 kW
- Percussion rate
- 53 Hz
HL710S
- Hole size
- 54 - 89 mm
- Percussion power
- 20 kW
- Percussion rate
- 52 Hz
HL1560ST
- Hole size
- 89 - 127 mm
- Percussion power
- 33 kW
- Percussion rate
- 40 Hz
RD315
- Hole size
- 43 - 51 mm
- Percussion power
- 15 kW
- Percussion rate
- 95 Hz
RD212
- Hole size
- 32 - 89 mm
- Percussion power
- 11 kW
- Percussion rate
- 63 Hz
Can't find the answer to your questions?
Are you looking for a spare part or component?
Visit My Sandvik customer portal where you can find information such as price and availability for our parts and components.