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Mesterdene Ltd




MESTERDENE LTD is a European consulting firm with expertise in machinery, electronics and software design and the achievement of conformity with European regulations. It focuses on helping companies achieve and maintain conformity with European Directives to the satisfaction of clients and regulators and supports design teams that need additional capacity during busy periods, with the minimum of expense.

Mesterdene Ltd range of services includes:

Potentially Explosive Atmospheres and Machinery Compliance Services:
  • Hazardous area classification surveys and formal documentation.
  • Inspection reports on the condition of on and off shore installations, plant and facilities where explosion protected equipment is employed.
  • Advice on the specification and installation of new explosion protected plant and equipment and the correct use of flame arresters.
  • Preparation of advisory or complete technical files and handbooks for the ATEX and Machinery Directives.


  • Potentially Explosive Atmospheres and Machinery Design Solutions:
  • Design of explosion protected electrical and mechanical equipment involving all methods of electrical protection and specialist knowledge of explosion protected machinery involving mechanical and chemical ignition sources.
  • A consistent approach to the hazard and risk assessment of all machinery together with translation of this into practical solutions.
  • Identification of the operating characteristics of electrical and mechanical equipment as relevant to ATEX.
  • Structural calculations, mechanism, electrical, hydraulic and pneumatic control-system design for machinery.
  • Negotiation on behalf of companies with the main Notified Bodies and access to current information from the European Commission.
  • Mesterdene Ltd has experienced staff including certification managers, recently responsible for notifications under the entire scope of the ATEX 100a, Machinery, EMC, Low Voltage, and Pressure Equipment Directives and project managers. Mesterdene staff can also provide technical assistance in meeting the requirements of Workplace Directives such as the ATEX 137 and Provision and Use of Work Equipment Regulations (PUWER). Their combined experience exceeds 50 years of continuous activity in manufacturing and process industries, testing and certification.


    Previous Projects include:

  • Design of explosion protected:electrical instrumentation and control equipment, diesel engines, gas-detection equipment for industry and aviation, flame arresters, systems for displacement and vacuum pumps, mechanical handling equipment, marine and industrial lighting, rotating electrical machines and lifting equipment.
  • Development of machines:conforming to the Machinery Directive involving mechanical structures, mechanisms, microprocessor, electrical, hydraulic and pneumatic control systems, high pressure equipment and cryogenics.
  • Hazardous area surveys:on shore platforms, refineries, generating plant, paint, food, agrochemical, pharmaceutical, spray coating, foundry, fine chemical, petrochemical, semiconductor and gas distribution industries.
  • Machinery advisory technical file projects:any type of machine including machine tools, robotic, mechanical handling, food processing, agricultural, building, pumping, lifting, woodworking and pressing machinery.
  • E-mail: qnet@ce-mark.com



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