ROTARY TABLES
UPETROM 1MAI S.A. manufactures the complete range of rotary tables covering the modern drilling requirements; thus, their opening values range between 17.1/2 in ( 444.5 mm ) and 49.1/2 in ( 1,257.3 mm ).
The main specifications of the UPETROM-made rotary tables are the following:
- rectangular-shape cradle simplifying the substructure design and providing optimum working conditions on the working floor;
- chain or cardan-shaft transmission;
- latch mechanism for locking the rotor to the right or both directions;
- splashing lubrication of all bearings and gears;
- smooth operation of the bevel gearing, whose gears are made of superficially heat-treated high-alloyed steels whose quality provides a long operational life;
- efficient sealing to mud and oil;
- rotor sealed by labyrinth flanges and geared-shaft sealed by rubber gaskets;
- possibility of retrieval for the geared-shaft assembly;
- dimensions of the square master bushings, square drive bushings and input-shaft head in accordance with the API Spec.7A requirements;
- axial-radial bearings.
| Type |
OPENING |
STATIC LOAD RATING |
INPUT POWER |
MAX. SPEED |
| in |
t |
sht |
HP |
rpm |
| MRL-495 |
49.1/2 |
800 |
880 |
1,150 |
250 |
| MRL-375 |
37.1/2 |
650 |
715 |
600 |
250 |
| MRL-275 |
27.1/2 |
500 |
550 |
600 |
300 |
| MRL-205 |
20.1/2 |
320 |
350 |
500 |
300 |
| MRS-205 |
20.1/2 |
320 |
350 |
500 |
300 |
| MRL-175 |
17.1/2 |
250 |
275 |
350 |
300 |
| MRS-175 |
17.1/2 |
250 |
275 |
350 |
300 |
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