• MBH 1250 Master Bushings

    MBH 1250 STON Hinged master bushing for handling Casing busings, # 1, 2 & 3 Insert Bushings, LSB Landing String Bushings, SDHL-handslips & LSS1250 Landing String Slips. The slips can be handled with the SLT Slip Lifter Tool.
    Description

    Tool, where applicable, updated in accordance with governing API standards

    MBH 1250 STON Hinged master bushing for handling Casing busings, #1,2 &3 Insert Bushings, LSB Landing String Bushings, SDHL-handslips & LSS1250 Landing String Slips. The slips can be handled with the SLT Slip Lifter Tool.

    • Casing bushings for MBH 1250 STON, suitable for upto 24" CMS-XL casings slips.
    • Insert bushings for MBH 1250 STON
    • Hand slips to be handled with SLT Slip Lifter Tool.
    • 1250 ton LSB Special Taper 1250 ton capacity Landing String Bushing
    • SLT Slip Lifter Tool for handling LSS and SDHL slips
    • DNV Type Approved Safety 4-legged Lifting Sling with close and lock hooks and Spreader Bar to facilitate easy splitting of MBH 1250 STON Master Bushing, DNV Type Approved Safety 2-legged Lifting Sling with close and lock hooks for LSB, Insert Bushings, Casing busings

    Features/Benefits

    With the design of bigger deepwater drilling rigs, the need for high capacity equipment is evident. NOV can provide a new  Hinged Master Bushing suitable for 49,5" with a 1250 STON rating:

    • Casing bushing suitable for the MBH 1250 STON.
    • # 1,2 & 3 insert bushings for MBH 1250 STON.
    • Specially designed slips for the MBH inserts bushings, to be handled with the SLT Slip Lifter Tool.
    • The LSB is designed to be used in combination with the MBH 1250.
    • Slip Lifter tool designed for handling 1250 STON hand slips. Optional by using a cross over kit for SDHL.
    • Approved lifting slings for safe and correct lifting of MBH 1250 and accessories like Casing bushings, insert bushings etc.

    Specifications

    MBH 1250 STONHinged Master BushingOutside Diameter
    49.1/2” Hinged Design
    Throat Opening
    30”
    Fits into
    National, Oilwell, Continental-Emsco, Ideco and Wirth configuration rotary table
    Special
     Bit Breaker Adapter Plate
     4-legged safety lifting sling
     2-legged safety bushing puller
     Locks to lock both MB and Bushings
    MBH 1250 STON with Casing Bushings24”-22” Casing Bushing
    26.1/2” Opening
    For 24” and 22” Casing
    20” -18.5/8” Casing Bushing
    22.1/2” Opening
    16” Casing Bushing
    17.3/4” Opening
    Standard CMS-XL casing slips can be used
    MBH 1250 STON with Insert bushing#1 Insert Bushing
    11.3/4” – 13.3/8”
    #2 Insert Bushing
    9.5/8” – 10.3/4”
    #3 Insert Bushing
    2.3/8” – 8.5/8”
    - API Design Taper
    - Uses standard DC-L and CMS-XL hand slips
    1250 STON slips1250 STON Slips
    For ‘Slip Proof Drill Pipe’ with increased upset (min. 70”)  to provide better resistance against crushing
    LSB 1250 STON Landing String BushingFor LSS 1250 STON Slips
    SLT Slip Lifter ToolSLT Slip Lifter Tool for handling LSS and SDHL slips. Fits directly on top of MBH 1250 using lock pins and on other 4 hole bushings like MPCH. Hydraulically actuated.
    2 and 4 way lifting slingsDNV Type Approved Safety 4-legged Lifting Sling with close and lock hooks and Spreader Bar to facilitate easy splitting of MBH 1250 STON Master Bushing, DNV Type Approved Safety 2-legged Lifting Sling with close and lock hooks for LSB, Insert Bushings, Casing busings.