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GLOSSARY

Crane Industry Glossary

Plain-language definitions of crane industry terms. Written for crane operators, company owners, and safety managers who need precise answers fast.

Anti-Two-Block Device
What is an anti-two-block device on a crane?
ASME B30
What is the ASME B30 crane standard?
Assembly/Disassembly Director
What is an assembly/disassembly director for crane operations?
Boom Angle
What is boom angle and why does it matter for crane capacity?
Counterweight
What is a counterweight on a crane?
Crane Mat
What is a crane mat and when is one required?
Crane Operator Certification
What are crane operator certification requirements?
Crane Rental
How does crane rental work?
Critical Lift
What is a critical lift?
Daily Crane Inspection
What is a daily crane inspection checklist?
Ground Bearing Pressure
What is ground bearing pressure for crane outriggers?
Lift Director
What is a lift director in crane operations?
Lift Plan
What is a lift plan?
Load Chart
What is a crane load chart?
Load Moment Indicator (LMI)
What is a load moment indicator on a crane?
Load Radius
What is load radius and how does it affect crane capacity?
NCCCO Certification
What is NCCCO certification?
Outrigger
What is an outrigger on a crane?
Pick-and-Carry
What is a pick-and-carry lift with a crane?
Pre-Lift Meeting
What is a pre-lift meeting and when is it required?
Rigging Hardware
What is rigging hardware and what are working load limits?
Rigging Plan
What is a rigging plan?
Signal Person
What are the qualifications for a crane signal person?
Swing Radius
What is swing radius on a crane and why must it be barricaded?
Synthetic Web Sling
What is a synthetic web sling and what damages it?
Tag Line
What is a tag line in crane operations?
Tandem Lift
What are tandem lift requirements?
Two-Blocking
What is two-blocking on a crane?
Wire Rope Sling
What is a wire rope sling and when must it be removed from service?
Working Load Limit (WLL)
What is Working Load Limit (WLL) in rigging?