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OS One Piece Bow Spring Centralizer

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Our One Piece Bow Spring Centralizer has high restoring force and low running force. With one-piece spring steel structure, it’s used mostly in deviated and horizontal holes.


OS One Piece Bow Spring Centralizer is a high performance one-piece centralizer designed for deviated and horizontal holes. The centralizer provides high restoring forces while keeping starting and running forces at or near 0 lbf. This minimizes drag during casing running and maximizes standoff during cementing operations.


  • Using one-piece spring steel sheet structure

  • Go through standard heat treatment process. Elasticity is stable and durable

  • Low running force. High restoring force

  • Restoring force is 1.5-3.5 times higher than API 10D standard

  • Suitable for onshore installation, reducing rig time costs and HSE exposure


  • High performance series

  • Economical series

  • Professional engineering support team

  • Size range is 2 7/8"-30". Any special sizes can be made available upon request

  • Spring Centralizer Range

    · Conventional Bow Spring 

    · Spiral Bow Spring