Picking an overhead crane (also called a bridge crane) is a big decision—one that affects how safely and efficiently your facility runs long-term. For buyers, focusing on a few key factors will make sure you get equipment that fits your needs perfectly. Here’s what to prioritize:
1. Lifting Capacity & How Often You’ll Use It
First, figure out your maximum load—but add a 20-30% buffer to avoid overworking the crane. Cranes are rated by CMAA service classes (A to F): Class A works for occasional jobs like maintenance, while Class F is built for non-stop heavy use (think steel mills). Most facilities go for 5-100+ ton capacities, and dual-hook options (like 15/3t) are great if you need flexibility for different loads.
2. Span & Lift Height
Span is the distance between the runway rails—standard sizes jump by 3m (e.g., 10.5m, 13.5m). Make sure it covers your entire work area, even around building columns or obstacles. Lift height (usually 12-26m) needs to be enough to clear equipment or stored items when moving loads vertically.
3. Configuration: Single vs. Double Girder
Single-girder cranes are budget-friendly and work well for light-to-medium loads (up to 20t)—perfect if your facility has plenty of headroom. Double-girder designs handle heavier loads (over 20t) and offer more hook height, which is ideal for heavy industry or spaces with limited vertical clearance. Top-running models are better for high capacity, while under-running ones let you reach closer to the ends of the workspace.
4. Matching It to Your Work Environment
Customize the crane for your conditions: galvanized parts resist corrosion for marine or chemical sites, explosion-proof motors keep petrochemical plants safe, and heat-resistant wiring stands up to foundry temperatures. If you’re in a cleanroom (like electronics or food production), look for designs that don’t release extra particles.
5. Controls & Compatibility
Pendant controls are simple and straightforward, while wireless remotes let operators stay safe from a distance. If you use automated systems (like AGVs or scheduling software), pick a crane that can integrate with them. And always check for CE or ISO certifications to make sure it meets global safety standards.
By lining up these factors with your industry (manufacturing, energy, logistics, etc.) and facility layout, you’ll end up with an overhead crane that’s reliable, efficient, and worth every investment.
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