"A scientist discovers that which exists. An engineer creates that which never was."

Theodore Von Karman

Construction & Mining Equipment

Proof engineering designs equipment and steel structures for the construction and mining industry. We also specialize in the design of aggregate processing plants including plant layout, equipment integration, structure optimization, 3D CAD models, and 2D drafting services. Our suite of software tools allow us to be versatile, designing structures that may accommodate unique loading conditions, obstructions, or custom machinery.

• Plant layout, 3D visualization
• Structural steel design/analysis and engineering
• Drawing package (2D CAD drafting)
• Licensed professional engineer (PE) review/stamp
• Design per building codes (local, national, and international)

• Design for wind and seismic (earthquake) loading

• Structural optimization (weight reduction)

• Load formulation

• Hopper and rock box design

• Conveyor system design

• Overturning analysis

• Vibration analysis and troubleshooting

• Repairs design (mitigation of structural fatigue)


• Aggregate processing plant layout and machine integration
• Vibratory screens
• Under the hook lifting devices
• Auxiliary attachments

• Artistic and kinetic structures

• Processing plants, mining plant infrastructure

• Storage bins, hoppers, chutes



We can assist you in the following areas:

  • Aggregate processing machines
  • Specialty attachments
  • Portable and mobile equipment
  • Under the hook lifting devices
  • Conveyors
  • Hoppers
  • Farm equipment
  • Railway
  • Support structures
  • Mining machines
  • Specialized agricultural equipment

Areas of Expertise:

  • Static and dynamic loading analysis
  • Material optimization
  • Design for strength
  • Design for safety regulations
  • Mechanism design
  • Structure certification
  • Sub-Assembly Design
  • Vibration analysis
  • Part failure analysis
  • Prototype design
  • CAD modeling
  • Lifting equipment certification
  • Structural failure analysis
  • Packaging
  • Chassis Design
  • Tool and die design



Client Testimonials

Worldwide Laser CEO:


The excellent design and build capabilities of Proof Engineering coupled with outstanding delivery times and completion of projects ahead of schedule have greatly reduced our costs, increased levels of service and quality to our customers along with freeing internal resources allowing us to concentrate on expanding our business. I highly recommend the experts at Proof Engineering for your project requirements.

Home | Structural |Mechanical |CAD| New Product Development | Prototyping

Proof Engineering Co. | 1135 N. McQueen Rd. Suite 131 Gilbert, AZ 85233 | (480) 478-0041