Equipment buying & work planning
Common Crane Types: Compare How the Load Moves
Crane types differ in the area they serve and how they support the load. Match the movement pattern before comparing capacity.
Choose the coverage pattern before the crane size
A jib crane serves a defined sweep, a gantry spans a working area, and boom arrangements provide different outreach geometry. Use these distinctions to organize options, then assess actual models. Equal headline capacities do not establish equivalent coverage, loaded movement or installation requirements.
Plot pickup and placement points and the path between them. Record verified load information, lifting points, hoist and accessory space, obstructions and required hook height. Structural height is not the same as usable lifting clearance. The crane can fit inside a building while the hook lacks enough room to lift and place the intended load.
Review support, permitted movement and installed scope
Ask for the relevant rating information, support requirements, controls and operating instructions for the proposed design. Identify foundations, building connections, power and service access where applicable. Do not assume an existing floor or column is adequate because it looks substantial. Loaded travel or side pulling should not be inferred from the equipment's appearance.
Compare alternatives against the same load cycle, area and installation responsibilities. Include inspection, parts and maintenance access in the ownership review. A complete proposal explains how the load moves and what the site must provide, avoiding an equipment purchase that cannot be commissioned without additional structural or process work.
| Decision | Evidence | Avoid |
|---|---|---|
| Coverage | Pickup, placement and connecting path. | Choosing type from capacity alone. |
| Headroom | Actual hook, hoist and accessory dimensions. | Using structure height as available lifting height. |
| Support | Foundation or structural requirements. | Assuming the existing building is adequate. |
| Operation | Approved motions and load configuration. | Inferring functions from a broad equipment name. |
Review checklist
- Pickup and placement locations
- Required coverage and headroom
- Support and load-chart requirements
Buyer questions
Can a crane move a load sideways while lifting?
Do not assume side pulling is permitted; follow the manufacturer's approved operating method.
What belongs on the load-path sketch?
Show load dimensions, pickup and placement points, overhead restrictions, nearby equipment and the proposed support location.
Can a crane's boom length be used as its working coverage?
Use the actual configuration and operating information. Hook position, rotation limits, obstructions and load conditions can affect usable coverage. Plot the required pickup and placement points and ask the supplier to confirm them rather than treating a structural dimension as the complete working envelope.
Why include lifting accessories in an early crane request?
They affect load, headroom, engagement and placement. Leaving them undefined can make a proposed crane appear suitable while the complete lift cannot fit. Describe the load and lifting points and have the appropriate accessory and support scope reviewed with the crane arrangement.
References & further reading
- OSHA: crane, derrick and hoist safety
- OSHA: overhead and gantry cranes — check applicability to the installation
Use the applicable requirements and the specific equipment instructions for your work. General references do not establish approval of a product or installation.