KM Mechanical - Mechanical Engineering Design & Drafting

Design and


Welcome to KM Mechanical



km-mechanical Ltd based in Invercargill, have been providing a professional engineering design and consulting service since 2005.

We offer a specialized mechanical engineering resource to local and international industry, with particular attention to the timber, meat, mining, dairy & processing industries.

Combining the theoretical and practical perspectives, we can offer a timely solution to any of your engineering requirements from conceptual layout and design to the complete package.

From major companies to private individuals, km-mechanical Ltd is large enough to provide quality, cost-effective solutions and yet small enough to deliver an effective and personalized service.

Professional Engineering Services

With an extensive, practical background in the manufacturing and servicing industry including all aspects of fabrication, maintenance, draughting, design and management, we offer a solution which includes a strong emphasis on the constructability, operability, maintainability and accessibility of your project.

Our expertise includes:

  • Chartered professional consultant
  • Design assessment and compliance checks for regulatory work
  • Ensuring current competence and professional development
  • We offer facilies for teleconferencing and screen sharing to allow harmonious intergration with multi-national projects or individual organisations

Industrial Mechanical Solutions

Mechanical engineering requires knowledge and experience that is reflected in... 

  • Mechanical plant
  • Machine design
  • Food processing
  • Machine guarding
  • Modularised plant design
  • Support structures for mechanical plant
  • Cranes, monorails and lifting devices
  • Materials processing, storage and handling
  • Plant access ways
  • Conveying systems


Pressure and Process Equipment

Our expertise includes:

  • Pressure vessels
  • Process tanks and vessels
  • Design and stress analysis
  • Pumping systems
  • Chimney stacks and flue ducting systems
  • Determination of energy requirements
  • Boiler and energy systems
  • Compilation for verification
  • Plant and piping layouts
  • Chemical plant and storage
  • Explosion suppression systems
  • Explosion pressure resistance

Design and Draughting

With any mechanical design we need images and drawings to bring these to life. We can offer a wide range of CAD services.

Our expertise includes:

  • 3D CAD
  • 2D CAD
  • Conceptual layouts
  • Full manufacture drawings
  • Structural drawings
  • Civil drawings
  • P&ID
  • Sheet development
  • Piping ISOs
  • 3D Equipment animation
  • 3D Assembly animation
  • Computerised models
  • Full colour plotting
  • Drawings/plan printing
  • 3D PDFs


  • Autodesk Inventor - 3D modeling with FEA
  • Autodesk AutoCAD - 3D/2D Draughting
  • Bentley Autoplant - Industrial plant design
  • Bentley Autopipe - Piping stress analysis
  • Bentley Open Plant Modeller – Plant and Piping Design
  • Bentley Microstation

Industrial Safety and Compliance

Machine Guarding & Safe Worksite Strategies:

  • Machine guarding
  • Safe access
  • Height safety
  • Hazardous substance storage
  • Hazardous substance handling
  • Materials handling
  • Lifting equipment ratings
  • Determination of safe working loads
  • Provision of Independent Certification

Equipment Assessment and Failure Analysis

Our expertise includes:

  • Structural integrity checks
  • Machine conditions and reports
  • Material transition problems

Modularised Design


APLNG Project

KM-Mechanical Ltd assisted Origin Energy and MWH Australia with providing a plant layout and modularised design for a proposed 8 stage multi effect distillation plant as a part of the upstream APLNG Project.

Our direct involvement included:

  • The overall plant conceptual design
  • The development of 42 individual modularised units
  • The prelimiary structural design for each module
  • Preliminary piping layouts and piping analysis
  • Ducting design and analysis
  • Constructability methodology and sequencing




Veolia/HPD Chloride Removal Module for Visy Pulp & Paper - Tamut Kraft Mill

KM-Mechanical provided design assistance to NDA Engineering and HPD Evaporation & Crystallisation (a Veolia Water Solutions & Technologies company) in the development of the modularised chloride removal system.

With the conceptual design of the process vessells and layout being supplied by HPD process engineers, KM-Mechanical then provided:

  • Full structural design and drawings
  • Finalised equipment layout
  • Piping and valving layout
  • Piping ISOs
  • Complete 3D model


Projects and Gallery

  • Side Tip Truck Unloader for Wood Chip
  • Single person shark dive cage
  • Diesel fuel tanker trailer
  • Owaka Going Forward Committee

    Model of waka sculpture by Russell Beck

  • Fonterra Takaka - Fluid Bed Dryer
  • Fonterra Studholme - Double Permeate Tank Installation
  • Fonterra Edendale

    Manufacturing detail for new pipe bridge.

  • Fonterra Clandeboye

    Support structure for processing plant.

  • Fonterra Edendale

    20,000L Warm water tank for truck wash.


  • Kevin Mair

Contact Us

60 Doon Street

Phone: 03 2141 602
Fax: 03 214 1603

No front page content has been created yet.

What We Do

Professional Engineering Services

Industrial Mechanical Solutions

Pressure and Process Equipment

Design and Draughting

Industrial Safety and Compliance

Equipment Assessment and Failure Analysis