Non-destructive testing (NDT) is a process that evaluates the safety, strength, and quality of materials or equipment without causing
damage.
An NDT (Non-Destructive Testing) for a scissor lift involves using methods like Ultrasonic Testing (UT), Magnetic Particle Testing (MT), or Liquid
Penetrant Testing (PT) to find hidden flaws (cracks, corrosion, fatigue) in its steel structure and welds without damaging it, ensuring structural
integrity for safety, and often required by regulations (like CSA B354.7 in Canada) for annual or periodic deep structural checks, especially after
10 years or incidents.
What They Look For
• Cracks: In welds, scissor arms, and pivot points.
• Corrosion: Deterioration of the metal.
• Deformation: Bends or twists in structural steel.
• Material Fatigue: Weakening of the metal from repeated stress.
When it’s Done
• Periodic Inspections: Required by standards like CSA B354.7, often after 10 years from the factory, then every 5 years
• After Incidents: Required if the lift has been in an accident.
• Before Sale: When maintenance records are missing.
Is an annual LDI (Lifting Device Inspection) the same as an NDT test?
• No, a Non-Destructive Test (NDT) is not the same as an annual Lifting Device Inspection (LDI), though an LDI often incorporates some
NDT methods.
Why It’s Important
• Worker Safety: Prevents catastrophic failures.
• Compliance: Meets legal requirements (e.g., OHSA in Ontario).
• Cost Savings: Avoids downtime and major repairs by catching issues early.