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Resources · Tools

Crane Engineering Tools & Calculators

Free tools built by our engineering team for crane selection, sizing and verification. Based on ISO 4301, GB/T 3811, FEM and CMAA standards. No signup required.

Tool Library

LIVESelection & Sizing

Crane Wheel Load Calculator

Max & min wheel loads with fatigue and static strength checks per GB/T 3811 & FEM 1.001 — the numbers your building designer needs directly.

Open calculator →
IN DEVELOPMENTSelection & Sizing

Crane Duty Classification Calculator

Service life, operating pattern and load spectrum → your working class in GB (A1–A8), ISO (M1–M8), FEM and CMAA — per ISO 4301-1.

Open calculator →
IN DEVELOPMENTSelection & Sizing

Crane Girder Pre-sizing Estimator

Capacity, span and duty → recommended box-girder depth and width, indicative plate thickness, deflection limit and camber.

Open estimator →
IN DEVELOPMENTSelection & Sizing

Sheave & Drum Diameter Calculator

Rope diameter and mechanism class → minimum drum, sheave and equalizer diameters, plus max rope tension from the reeving ratio.

Open calculator →
IN DEVELOPMENTSelection & Sizing

Travel Motor Power Calculator

Load, speed and wheel size → travel running resistance and 3-in-1 geared-motor power, with an outdoor wind-load option.

Open calculator →
IN DEVELOPMENTSelection & Sizing

Wire Rope Selector

Load and sling layout — or towing pull and slope → rope diameter, breaking force and shackle size per ISO 2408 with selectable safety factors.

Open selector →
IN DEVELOPMENTConverters & Reference

Crane Unit Converter

Tons ↔ pounds, meters ↔ feet, lifting speed and force — instant metric–imperial conversions tuned for crane spec sheets and inquiries.

Open converter →
IN DEVELOPMENTConverters & Reference

Steel Section Properties Calculator

Area, centroid, moment of inertia, section modulus, radius of gyration and weight per meter for I-beam, channel, tube, bar and trapezoid.

Open calculator →
IN DEVELOPMENTVerification

Lifting Lug Verification

Pad-eye strength check — net-section tension, shear tear-out, pin bearing, base section and weld — with pass/fail utilization and a printable calc sheet.

Open verification →
Which tool would save you an hour? Tell us — the most-requested tool gets built next: suggest a tool.

Want us to run the numbers for you?

Send your load, span and duty cycle — our engineers size the crane and send wheel loads for your building design, free.

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GIFA & METEC Indonesia 2026 Cranes | Booth 7407