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Rotary Tables
LeTourneau Technologies™ Drilling Systems rotary tables offer features and benefits other
brands don't. Larger oil capacity, for example, plus
an optional lubrication circulation pump. Internal access
from the top of the unit eliminates turning the table
upside down for maintenance or repair, resulting in reduced downtime and labor costs. LTI rotary tables
feature a tough, forged-steel, fabricated housing and
a heat-treated, forged-steel turntable. Each rotary
is supplied with spiral-bevel, induction-hardened gears.
Two independent ratchet-type locks -- with lever access
from the top -- lock the table in position.
Rotary Transmissions and Independent
Drives
LTI Drilling Systems'
L-1200-RT rotary-table transmissions are used for independent rotary-table drives
combined with AC or DC electric-motor drives. The
L-1200-RT has a shifter lock mechanism, spline clutches
for two-speed operation (2:1 and 1:1 ratios), double-helical
gears, and a cascade lube system with support feet.
The transmission can be mounted upright or on its side.
LTI fabricates a variety of independent rotary drives
as well. Contact LTI for more information.
| ROTARY
TABLE SPECIFICATIONS |
Model |
L-275 |
L-375 |
L-495 |
L-605 |
Table
opening - in. (mm) |
27-1/2
(699) |
37-1/2
(953) |
49-1/2
(1,257) |
60-1/2
(1537) |
Table-to-sprocket
API dimensions - in. (mm) |
53-1/4
(1,353) |
53-1/4
(1,353) |
65
(1,651) |
65
(1651) |
Pinion
shaft diameter,
sprocket end - in. (mm) |
4.938
(125) |
4.938
(125) |
4.938
(125) |
4.938
(125) |
Oil
capacity - gal. (L) |
10.5
(39) |
17
(64) |
30
(113) |
30
(113) |
Weight,
with sprocket - lbs. (kgs) |
8,650
(3923) |
14,100
(6,396) |
27,000
(12,247) |
35,000
(15,900) |
Dead-load
capacity -
tons (metric tonnes) |
500
(454) |
800
(726) |
1000
(907) |
1250
(1134) |
Gear
ratio |
3.16:1 |
3.60:1 |
3.93:1 |
4.76:1 |
Maximum
table rpm |
400 |
350 |
300 |
150 |
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