|
|
SBM-900
Because
of the increased load capacities provided with the SBM 900, the hydraulic
thrust cylinders are used as guide columns. These columns are in direct
line with the drive spindle. Pilot or reaming thrust is reacted directly
through the pivot point of the machine to assure stability at any drill
angle and any thrust load.
This
means reduced bending moment, greater stability and less deviation
of the pilot hole collaring point when you are drilling and reaming
inclined raises. This alignment also reduces wear and stress on structural
members, drive spindle and drill pipe components.
The
SBM 900 develops reaming torque of 189,000 ft. lbs. / 256, 284 knm.
and reaming thrust to 940,000 lbs. / 4,174 kn. This machine comes standard
with hydraulic drive, variable (0-9 RPM) rotary speed, so thrust and
torque requirements can be obtained for cutting rock formations during
pilot drilling as well as back reaming
|
 |
| |
|
|
|
General
Information
|
Performance
specifications
|
| |
|
|
|
|
Pilot
hole and bit size
|
11
in. (279mm) |
12¼ in.(311 mm) |
Nominal diameter capacity |
12-15ft. (3,7-4,6 mts) |
Drill rod data:
|
|
|
Nominal length capacity |
2,000 ft. (610 mts) |
Length
|
60 in. (1,524 mm) |
60 in. (1,524 mm) |
hp installed |
400 |
O.D.
|
10 in. hs (254mm) |
11¼ in. (286 mm) |
Operating Torque |
189,000 lbs. (256,284 Knm) |
Thread type
|
high strength double lead with low breakout
to make up torque ratio. |
Max. Torque |
270,000 lbs. (366,102 knm) |
|
strength
|
high strength
desing (standard strength optional)
|
rpm reaming |
0-9 |
wt./linear ft.
|
156 lbs (233 kgs/m) |
200 lbs. (298 Krs/m) |
max. thrust reaming |
940,000 lbs (4,174 Kn) |
Dip angle
|
any angle 50º to vertical. With special supports
and ajustments in concrete base pads, machine can be further
inclined form 50º to horizontal position
|
rpm piloting |
variable to 60 |
thrust system pressure |
6,000 psi (422 kg/cm) |
Power pack
|
Electric power pack operates on most available
mine voltage and frecuency
|
Width |
6 ft. 8 in. (2,032 mm) |
|
Control Console
|
Remote station with cable and hose connection
fron machine and power packs to control all machine orerating
functions.
|
Weight with sled |
34,000 lbs. (15,426 kgs) |
dip angle |
50º - 90º |
|
Gear components
|
Drive train feaures gears ground for smooth and quiet operation
and high capacity thrust bearings. Two main thrust bearings
are interchangables for greater service life potentail
|
Rotary drive type |
Hydraulic |
| |
|
|
Machine base
|
Lower frame provides worktables close to floor
elevation in most drill positions and incorporates a packer-blooie
system which eliminates need for addiotional cut-out or provisions
in concrete pad below machine
|
|
|
|
Optional Equipment
|
pipe positioner recorder and transporter.
|
|
|
|
