DHTE Capabilities for Testing and Certifications of Design

Detroit Heavy Truck Engineering, LLC possesses a World Class Engineering Team, this is unquestionable.  The accomplishments achieved over the past 30 plus years have established bench marks for the competitors to follow within the Heavy Mobile Equipment industry.  Our Engineers were responsible for the design and development of the World’s First 240 short ton Haul Truck in 1982.  This same team led the way again in 1998 by developing the World’s First 400 short ton Hauler.  In 2011 the First 400 short ton Hauler was designed by DHTE and built in China under the guidance and direction of our Engineering Team.  This marked another milestone of success for our Teams capabilities.  Development of these designs was made possible by this Team due to the many years of Field experience and Testing Capabilities.

Proven Design of such equipment is an accomplishment on its own, but to have the expertise to Test and Validate the Design is an invaluable asset few Engineering firms can claim.  DHTE is fortunate to have such a complimentary Team of experts to take a project from conception to validation.  Working knowledge of the environments and the abusive working conditions the product will be exposed to, are considered before the first line is drawn of the design.  Safety Requirements, Industry Standards, and Customer expectations are important factors as well.  DHTE Engineers have logged many hours of Field Testing and Data Collection in sites all over the world.  Some of the most demanding sites range from the Oil Sands of Canada to the Iron Ore Ranges in Australia not to mention the High Altitudes of South America.

DHTE has the capabilities to successfully perform and validate such standards as ISO 5010 Steering Requirements, ISO 7457 Turning Radius, SAE 3450 Brake Test Procedures, SAE 1473 Braking Performance as well as ISO 3164 ROPS Specifications and ISO 3471 ROPS Testing and Procedures.  As most of these standards are required to be performed and at actual working mine sites, DHTE personnel have established relationships with several mine sites and their management groups.  One of these areas is Gillette Wyoming, which is located in The Powder River Basin the largest mining area in the United States that produced close to 450 million short tons of Coal in 2010.  Twelve of these open pit mines are located in the Gillette area.  DHTE has an established presence in Gillette as well with a branch Sales Office in the city.

Gillette is also home to many Heavy Equipment support companies.  DHTE has working relationships with many of these support companies which adds to our portfolio of expertise in the Heavy Mobile Equipment Industry.  Establishing a Testing and Certification protocol with a mine site in the Gillette area can easily be accomplished with the Engineering expertise of DHTE and superior support of area companies like the ones highlighted above.  The personnel of these companies have all of the necessary qualifications and certifications required to work on site at the local mines and are respected by mine management for their integrity and workmanship.

Safety is first and foremost during any type of Testing performed and is taken very serious not only by DHTE personnel but by the personnel of any reputable mine site.  Careful planning and organization is required for a Safe and Successful Test event.  A licensed PE is typically responsible for planning and execution of testing along with a mine representative to coordinate support equipment and security.  The overall objective for Field Testing is to validate Design.  This validation includes certification to meet specific ISO and/or SAE Standards.  Due to constraints within a mine site it is necessary to properly plan the execution of testing such that minimal interruptions of operations occur and to ensure the safety of all participants during the data collection process.  The planning and coordination of the test is as important as the test itself.  The outline below is an example of the planning required.

Outline for Field Testing & Certification


Heavy Mobile Equipment

  1. Assessment of Tests to Be Performed per Design Validation Requirements
    1. Brake Test
    2. Steering Test
    3. Noise Test
    4. Functional System Test
    5. Suspension Characteristics – stroke/position verification (empty/loaded)
    6. Vehicle weight (empty/loaded)
    7. Retarding performance evaluation~ Note – Items 5, 6, & 7 above will require weight scales, availability and cost of installation and logistics to be determined.
  2. Determine Parameters of Test/Certification/Design Target
    1. ISO/SAE Standard Specifications and Procedures
    2. Target Specifications
    3. Validation Requirements 3rd party, PE, etc.
  3. Test Equipment Required
    1. Strain Gauges
    2. Pressure Gauges
    3. Position Sensors
    4. Temperature Sensors
    5. Measuring Equipment, Tapes, Encoders, etc.
    6. Data Recorders and Instrumentation