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Mast and Sub Structures

Mast and Sub Structures

Based on a legacy of more than 1 000 Pyramid™ masts and derricks since 1956, MHWirth provides mast and sub-structures according to your specifications and industry standard. As Original Equipment Manufacturer (OEM) we have the in-depth technical knowledge of equipment and interfaces to provide you with the most effective solutions for swing-up, cantilever mast and box-on-box sub-structure or any tailormade design, including:

  • Casing Stabbing Board
  • Pony Box
  • BOP Handling System
  • Snubbing System
  • Mast Extension
  • Drill Floor Upgrade
  • Racking Board Upgrade
  • BOP Cradles, Transport Skid
  • Raising System Upgrade
  • Rig Moving System


  • Proven Pyramid™ design
  • OEM Expertise
  • CAT III and CAT IV rig inspections
  • Upgrades and modifications of existing structures



Our extensive project experience and execution provide complete drilling systems and equipment on an Engineering, Procurement, and Construction basis.

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About Us

As the largest subsidiary of Akastor, MHWirth has a global span covering five continents with offices in 13 countries.

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Our Services

We offer global drilling lifecycle services (DLS), training and superior customer service and support through the lifetime of product.

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