Precision Engineering for Submarine Applications

Client: Defence Industry

Project: Manufacture of Torque Adaptor Assemblies for Submarine Use


Electropak Ltd, a leading provider of precision engineering solutions, was tasked with the manufacture of Torque Adaptor Assemblies for a high-stakes application within the Defence industry. These assemblies are critical components used on submarines, where reliability and precision are paramount.

Project Details

Objective: To produce high-quality Torque Adaptor Assemblies that meet stringent defence standards and perform flawlessly in challenging submarine environments.

Materials and Components:

  1. Torque Adaptor Plate:
    • Material: 316 Stainless Steel
    • Details: The torque adaptor plate was meticulously machined from 316 stainless steel, known for its excellent corrosion resistance and durability. This choice of material ensures that the component can withstand the harsh marine environment and the pressures associated with submarine operations.
    • Customisation: Clear, easy-to-read instructions for use were engraved directly onto the plate, providing essential guidance to operators and ensuring proper usage under any conditions.
  2. Latch Arm:
    • Material: Phosphor Bronze
    • Details: The latch arm was crafted from phosphor bronze, a material renowned for its strength, toughness, and resistance to fatigue. This makes it ideal for high-stress applications.
    • Assembly: The latch arm was securely riveted to the torque adaptor plate, ensuring a robust and reliable connection.

Quality and Standards

Electropak Ltd holds the AS9100 Rev D certification, a stringent quality management standard for the aerospace and defence industries. This accreditation underscores our commitment to excellence and our capability to meet the complex requirements of the defence sector.

AS9100 Rev D Approval:

  • Benefits: This certification allows us to manufacture a diverse range of components for the defence industry, guaranteeing that every part we produce adheres to the highest standards of quality, safety, and performance.
  • Process: Our quality assurance processes involve rigorous testing and inspection at every stage of production, ensuring that each torque adaptor assembly meets the precise specifications and performs reliably in its intended application.

Results and Impact

The successful manufacture and delivery of the Torque Adaptor Assemblies have further solidified Electropak’s reputation as a trusted partner in the defence industry. Our components are now integral to the operation of submarines, contributing to the safety and effectiveness of these critical defence assets.

Client Feedback: Our client expressed high satisfaction with the quality and performance of the torque adaptor assemblies, particularly noting the durability of the materials and the clarity of the engraved instructions. This project has opened the door for further collaborations, with Electropak poised to take on additional complex manufacturing challenges within the defence sector.


Electropak Ltd’s expertise in precision engineering, coupled with our commitment to quality and adherence to AS9100 Rev D standards, has enabled us to deliver exceptional results for our defence industry clients. The Torque Adaptor Assemblies project exemplifies our ability to meet and exceed the rigorous demands of critical applications, ensuring reliability and performance in even the most challenging environments.

Contact Us: For more information on our capabilities and how we can support your precision engineering needs, please visit Electropak Ltd’s website or contact us directly.