Basics & Standards
Start here to understand the core terminology.
Industry Glossary (A-Z)
Definitions for SWL, FEM, DSL, and more.
BasicsWhat is an EOT Crane?
Full form, meaning, and key components explained.
StandardsISO Standards Guide
Understanding ISO 4301 and safety norms.
Pillar GuideEOT Crane Duty Classes: M3 to M8
M5 vs M8? How to calculate the correct duty class to prevent fatigue failure.
Procurement & Buying Guides
Make informed decisions before you buy.
Engineering & Design
Technical calculations for designers.
Crane Structural Standards Compared
IS 807 vs FEM 1.001 vs ISO 4301 vs CMAA 70 with complete conversion matrix.
Pillar GuideMotor Power Calculation
Step-by-step formula derivation and sizing for Hoist, CT, and LT drives.
Pillar GuideWheel Load Distribution
How dynamic lifting forces translate into massive concentrated loads on rails.
Pillar GuideDeflection & Camber
Understanding IS 3177 deflection limits and calculating pre-camber curves.
Pillar GuideBox Girder Stiffener Design
Preventing web buckling with correctly spaced vertical and horizontal stiffeners.
Pillar GuideCrane Rail Sizing Chart
Complete dimension tables for CR80/100, DIN 536 (A45–A150), and square bars with wheel contact stress formulas.
Pillar GuideCrane Runway Beam Design
Influence lines, moving loads, and dynamic impact factors explained.
Motor Power Calculation
Formulas for Hoist and Travel motion KW.
Brake Torque Sizing
How to calculate required braking torque.
Safety & Maintenance
Keep your equipment running safely.
The Snapped Hook Shank
Why a 25-Ton forged hook sheared at 60% load: hidden thread-root fatigue beneath the nut.
Forensic Case StudyThe Two-Blocking Disaster
How a 3-phase wiring reversal bypassed the upper limit switch, snapped a rope, and dropped 12 Tons.
Pillar GuideCrane Buffer Sizing
Kinetic energy, deceleration limits, and buffer sizing physics.
5 Signs of Failure
Warning signs every operator must know.
Top 10 Safety Rules
Essential protocols for floor safety.
Wire Rope Inspection
Complete process from preparation through records and follow-up.
Broken Wires in Rope
How to judge wire breaks and rejection risk.
Wire Rope NDT / MRT
When visual inspection is not enough.
Rope Replacement Period
Condition-based replacement triggers.
Load Testing Guide
Why and how to perform proof load tests.
Diagnosing Wheel Wear
Causes of flange wear and rail damage.
Preventing Bridge Skew
Alignment issues and how to fix them.
Choosing Crane Brakes
Thruster vs. DC brakes explained.
Modern Technology
Automation, Electrification, and Control.
Crane VFD & DBR Sizing
Overcoming over-voltage trips with correctly sized braking resistors.
VFD vs. Contactor Control
Benefits of variable frequency drives.
Radio Remote vs. Pendant
Wireless control vs. traditional pendants.
Busbar Systems
Shrouded busbar vs. festoon cables.
DSL Current Rating
How to check busbar amp rating before PO.
DSL Voltage Drop
Runway length, feed points, and far-end voltage.
Collector Shoe Checks
Wear, sparking, alignment, and spares.
Future of Automation
Industry 4.0 in material handling.