Lower Fuel Consumption Borewell Drilling Hammers / Mincon Dth
Hammers
Borewell Drilling Hammers catalogue
ROSCHEN MINING BOLSTERS RH460 DTH HAMMER SERIES
Roschen Mining has added 6- and 8-inch models to its growing RH460
DTH hammer family, designed to reduce costs, increase penetration
rates and prolong service life in even more drilling applications.
Roschen Mining is also introducing 4- and 5-inch RH460hp hammers,
air-efficient high-pressure models designed to operate at 32-35 bar
(450-500 psi). At 35 bar, RH460hp hammers consume less fuel and
cost less to operate than similar hammers at the same pressure.
The high-pressure hammers, an ideal match for DR500-series rigs and
the company’s new Pantera, feature the same benefits as all RH460
hammers.
The growing RH460 family optimizes the impact-energy transmission
in variable ground conditions. Enhanced air cycle improves
expansion and compression rates, producing more power while
reducing air and fuel consumption.
Developments in the piston design and improved lubrication
capabilities dramatically increase piston and hammer life across
the RH460 series. Mining has devoted much R&D work into
designing the bearing surfaces to ensure bending vibrations in the
piston are eliminated.
Roschen RH460 hammers also feature a unique V-lock mount system
designed to prevent movement of the internal components, ensuring
reliability and eliminating the need for shims and special assembly
tools.
The working principle of the Roschen RH460 range ensures that the
hammers start up in any direction, making their design well-suited
for all surface and underground mining applications.
The design of the Roschen RH460 series makes the hammers easy to
service. The complete high-performance, cost-effective range is
designed to utilize bits with generic shank types.
ROSCHEN LAUNCHES LATEST IN RH460 DTH HAMMER SERIES
Roschen has launched a 4-inch hammer in its proven RH460 DTH
series, designed to reduce drilling costs, increase penetration
rates and prolong service life.
The growing Roschen RH460 family optimizes the impact-energy
transmission in variable ground conditions. Enhanced air cycle
improves expansion and compression rates, producing more power
while reducing air and fuel consumption.
Piston and hammer life are dramatically increased in the RH460
series, thanks to developments in the piston design and improved
lubrication capabilities.
Roschen RH460 hammers also feature a unique V-lock mount system
designed to prevent movement of the internal components, ensuring
reliability and eliminating the need for shims and special assembly
tools.
The working principle of the Roschen RH460 range ensures that the
hammers start up in any direction, making their design well-suited
for all surface and underground mining applications.
The design of the Roschen RH460 series makes the hammers easy to
service. The high-performance, cost-effective range is now
available in 4- and 5-inch models and will soon feature 6- and
8-inch versions. All versions are designed to utilize bits with
generic shank types.
Drill rods ( right thread)60x7-90-44, “E” Grade completed with
welded-on joint -90-44 (thread type NC-26(2 3/8 IF),L=9 -9,5m
(right). Total requested quantity is 13tn.
Drill rods ( left thread)60x7-90-44, “E” Grade completed with
welded-on joint -90-44 (thread type NC-26(2 3/8 IF),L=9 -9,5m
(left). Total requested quantity is 13tn .
Drill rod 73x9,17, “E” Grade completed with welded-on joint -105-54
(tread type NC-31(2 7/8 IF), L=9-9,5m (right). Total requested
quantity is 21tn .
Drill rods ( right thread)60x7-90-44, “E” Grade completed with
welded-on joint -90-44 (thread type NC-26(2 3/8 IF),L=9 -9,5m
(right). Total requested quantity is 13tn.
Drill rods ( left thread)60x7-90-44, “E” Grade completed with
welded-on joint -90-44 (thread type NC-26(2 3/8 IF),L=9 -9,5m
(left). Total requested quantity is 13tn .
Drill rod 73x9,17, “E” Grade completed with welded-on joint -105-54
(tread type NC-31(2 7/8 IF), L=9-9,5m (right). Total requested
quantity is 21tn .
Borewell Drilling Hammers Parameters
| ROSCHEN Model | Model | Size | Weight lb. | Outside diameter | Length | OP pressure psi |
| ROS 52 | RH460g | 5" | 170 | 496" | 42.01" | 150-350 |
| ROS 32 | RH550r | 3" | 55 | 3.2" | 32.4" | 150-350 |
| ROS 42 | RH550r | 4" | 83 | 3.86" | 36.0" | 150-350 |
| ROS 54 | RH550 | 5" | 145 | 4.72" | 38.86" | 150-350 |
| ROS 54 | RH550g | 5" | 160 | 5.0" | 38.86" | 150-350 |
| ROS 64 | RH550r | 5" | 160 | 5.0" | 38.86" | 150-350 |
| ROS 64 | RH550w | 6" | 158 | 5.6" | 36.3" | 150-350 |
| ROS 64 | RH550 | 6" | 158 | 5.6" | 36.3" | 150-350 |
| ROS 64 | RH550g | 6" | 180 | 5.9" | 36.3" | 150-350 |
| ROS 64 | RH550r | 6" | 180 | 5.9" | 36.3" | 150-350 |
| ROS 84 | RH550r | 8" | 380 | 7.12" | 48.0" | 150-350 |
| ROS 84 | RH550w | 8" | 380 | 7.12" | 50.0" | 150-350 |
Photos of DTH hammer
Applications:
