Our Services

Typical work done for the various industries:

Petro-Chemical

Stress verification on pressure vessels and heat exchangers is done
according to the ASME and other related codes. Typical customer SASOL
and PBMR


• Stress verification on piping systems according to ASME B31.3 Typical
  customer OMNIA fertiliser
• Mechanical design is done on pressure vessels and heat exchangers,
  piping systems, distillation columns and more. This is done to the level of
  fabrication drawings. Typical customer SASOL
• Finite Element analyses are done on special pressure vessels for the
  petrochemical industry. These are dynamic analyses of distillation columns
  and static stress analyses of distillation columns and heat exchangers.

Nuclear

 

From September 2008 till March 2009 work was done for the PBMR [Pebble
Bed Modular Reactor, Company] in Pretoria on structural and component design of nuclear safety critical components and structures, mainly according to the ASME pressure vessel codes. Designs were verified and optimised making use of finite element analyses (FEA) methods.


• A lifting frame with a capacity of lifting a 200 ton load was designed. The
  design was optimised with ANSYS finite element analysis (FEA) software.

• A support structure for a cooling system required to protect the concrete of
  the reactor building was designed. These weld assembly designs were
  also optimized making use of FEA software.

Military Industry

Design of various mine resistant armoured personnel (MRAP) vehicles.
These included the design of the following subsystems:

1. Drive train combinations including dynamic and performance
    calculation and simulation of vehicles with different combinations of
    engines, transmissions and final drives.

2. Design of suspension sub-systems
3. Design and sizing of engine, air to water heat exchanger (radiator)
4. Design and sizing of engine turbo charger intercooler
5. Design and layout of air conditioning subsystem.
6. Design of vehicle hull structure, with optimization and verification
    utilizing FEA techniques.

Transport

• Design and building of Low Mass load bodies for heavy-duty trucks to
  maximise legal payload on public roads. These load bodies are made of
  either Aluminium or high strength steel. To minimise the weight, finite
  element analysis (FEA) had to be implemented to cut away all
  unnecessary material.
• Design and build of low mass trailers (25 tonne payload) fabricated
  entirely from aluminium to be used in combination with light bodied trucks
  to maximize the legal payload on public roads.

• Design and build of cryogenic testing chambers for an automotive
  electronics company to test lead free soldering crystal growth below
  minus 40 ° C. These chambers could operate at below minus 50° C and
  made use of 2 refrigeration circuits in tandem using R22 and R23
  refrigerants.
• Investigation into the design integrity of a stretched Chrysler 300
   limousine, making use of FEA methods. This was done for a coach
   building company in Springfield Missouri in the USA. Certification of the
   stretched Chrysler limousine, of which 20 had been sold to a British
   customer, was required by the British Automotive authorities. Structural
   analyses on the suspension components, and the stretched hull, using
   finite element analysis (FEA) techniques was done to determine safety
   margins on the vehicle.

• Modelling up the suspension components of the stretched Chrysler
   Limousine and verify the integrity using FEA methods.

• Design and manufacture of the air conditioning systems for the Transnet
   Blue Trains (2 train sets)
• Design and development of a revolutionary new lightweight heavy
   haulage NTST trailer system.

Heating Ventilation and Airconditioning

• Low cost water chilling machines for the bakery industry
• Water chillers for train air conditioning
• Shell and tube heat exchangers
• An air conditioning system for 2 luxury tourist train sets including the
  compact air handling units for each individual compartment.
• Centrifugal fans and blowers for ventilation up to 25 cubic meters/sec (size
   limited by factory electrical installation capacity limit) These are both single
   as well as double inlet centrifugal fans

• Cyclones for particle separation, for wood industry as well as for coal fired
   power stations.
• Air handling and filtration plants.
• Design of mechanical building services for a new hospital complex
  including air-conditioning, heating, special clean air filtration, medical
  gasses layouts, morgues, steam heating and reticulation installations, the
  steam generation installation and the incinerator facility. (This was done in
  capacity as a consulting engineer and applicant was not involved in
  manufacturing)
• Design of a wet scrubber plant for a fertilizer manufacturer

General Machinery and Structures

• Various machinery structures and bases for general industry, minerals
  processing industry and mining applications.
• Rotary drying kilns for a fertiliser manufacturing plant.

• Conveyors: various types: Belt conveyors, screw conveyors, shaft less
  screw conveyors, conveyors and turn tables for the food industry,
  conveyors for baggage handling systems at airports, conveyors for the
  automotive part manufacturing industry.
• Various blenders and mixers for general industry
• A vegetable washing machine for the fresh produce packaging industry.
• Low cost re-usable collapsible hydraulic struts for the underground mining
  industry.
• A debarking and de-branching machine for wood log harvesting, which
  also could cut the harvested logs to specific lengths. One prototype of this
  machine was built.
• Drying machines to dry sporting (cricket) fields after rain for quick
  resumption of games (for the cricket world cup tournament in South Africa)

Rivot Trailer

• The entire trailer(s) is fabricated from high strength SSAB (Swedish) or
  Thyssen Krupp steel.
• No welding is used in the fabrication process.
• The trailers are riveted together.
• The strength of the material is therefore not weakened by any hot
  operation.
• The fatigue strength of the material is therefore 4-5 times higher than the
  material in welded structures.
• The design was done to keep the stresses in the parts, below the fatigue
   level of the material, resulting in an unlimited fatigue life.
• The trailers have no dedicated chassis, and the load bearing is done by
  the shape of the load boxes.
• Due to the absence of a dedicated chassis, the pay load could be 15 %
  higher than that obtained from the currently available side tipper trailers.
• Offloading can safely be done whilst being in motion, with no danger of
  overturning.