MASTER BUSHING : JOTMB-3750

JANKI OIL TOOLS : MASTER BUSHING  

 for more information on master bushing and the spare parts list please visit www.jankioiltools.com/masterbushing.php

The JOTMB-3750 model hinged pin drive Master Bushing for 37-1/2 rotary table is developed for off-shore drilling operations. JOTMB is capable to handle 2-3/8 through 13-3/8 inch O.D. drill pipe, drill collars, tubing and casing up to a load of 500 tons. JOTMB with a hinged design can be removed from the rotary table to pass large diameter bit and pipe connections directly through the Rotary table yet it has all the performance features of a solid master bushing. The JOTMB is equipped with insert bowl No.3 (Std) and optional inserts bowl No.1 & 2. The JOTMB is incorporated with latches that lock into the rotary table. Locking latches are provided that lock the bowls into the bushing. Master Bushing is also equipped with retainer pins to prevent them from falling out when the hinges are opened.

 

MASTER BUSHING: ABMB-3750 SQ model :-

       The JOTMB-3750 SQ model hinged pin drive Master Bushing for 37-1/2 rotary table is developed for off-shore OIL WELL ROTARY table. JOTMB is capable to handle 2-3/8 through 13-3/8 inch O.D. drill pipe, drill collars, tubing and casing up to a load of 500 tons. JOTMB with a hinged design can be removed from the rotary table to pass large diameter bit and pipe connections directly through the Rotary table yet it has all the performance features of a solid master bushing. The JOTMB is equipped with insert bowl No.3 (Std) and optional inserts bowl No.1 & 2. Locking latches are provided to lock the bowls with the bushing. Master Bushing is also equipped with retainer pins to prevent them from falling out when the hinges are opened.

SOLID BODY PIN DRIVE MASTER BUSHING

Janki Oil Tools has developed Solid Body Pin Drive master bushing taking in to account different sizes of rotary table 20.½" and 27.½". The advantage of using Pin Drive Kelly Bushings makes it possible to use extended slip bowls in the rotary table while the Kelly bushing is in operation. The extended bowls are made in three sizes for different sizes of tubulars as given below :-

Extended bowls provide better slip back ups & this back up is made use of in running in heavier tubular strings with out string failure due to bottle necking. JOTMB 2750 PS & JOTMB 2050 PS with appropriate insert bowl in use can hold maximum of 500 tons string load.

 
JOTMB 2750 PS & 2050 PS
is supplied along with the following :-
   1. Bit breaker adapter plate.
   2. Insert bowl No. 3 and
   3. Lifting sling.
These Master Bushing are provided with locks to secure the bowls into the bushings.

MEDIUM DUTY PIN DRIVE SPLIT MASTER BUSHING

Janki Oil Tools has developed Solid Body Pin Drive master bushing taking in to account different sizes of rotary table 20.½" and 27.½". The advantage of using Pin Drive Kelly Bushings makes it possible to use extended slip bowls in the rotary table while the Kelly bushing is in operation. The extended bowls are made in three sizes for different sizes of tubulars as given below :-

Extended bowls provide better slip back ups & this back up is made use of in running in heavier tubular strings with out string failure due to bottle necking. JOTMB 2750 PS & JOTMB 2050 PS with appropriate insert bowl in use can hold maximum of 500 tons string load.

JOTMB 2750 PS & 2050 PS is supplied along with the following :-
   1. Bit breaker adapter plate.
   2. Insert bowl No. 3 and
   3. Lifting sling.
These Master Bushing are provided with locks to secure the bowls into the bushings.

SOLID BODY SQUARE DRIVE MASTER BUSHING

 Master Bushing : JOTMB -2750 SS MODEL

 
17.½" Through 27.½" JOTMB-2750 SS is used for all drilling operations up to 10000 feet. Square Drive Kelly Bushing JOTMB-2750 SS is used where a large slip back-up area is not needed. With the help of different sizes extended API insert bowls JOTMB-2750 SS can handle tubular of 2.3/8" to 13.3/8" OD. The solid outer body is designed in a way that it supports all transverse load and imparts suitable backing for split insert bowls even when the rotary table is in use for drilling operation.
 

JOTMB - 2750 SS is supplied along with the following :-

1. Insert bowl No. 3.
2. Lifting Slings.