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Crane and Hoist Safety Signs in Indian Factories: IS 3177 and IS 807 Requirements

By Super Admin ·

The 20-Tonne Object Hanging Over Your Workers' Heads

Overhead cranes, gantry cranes, jib cranes, and hoists are ubiquitous in Indian manufacturing — from small 2-tonne chain hoists in workshops to 100-tonne EOT cranes in steel plants. Every crane represents a potential dropped-load catastrophe. Safety signage for crane operations is governed by IS 3177 (Safety Code for Cranes) and IS 807 (Design, Erection and Testing of Cranes).

Essential Crane Safety Signs

Safe Working Load (SWL) Display

  • Every crane must display its SWL/WLL (Working Load Limit) prominently
  • The SWL sign must be visible from the operator's cabin and from floor level
  • For mobile cranes: load chart display
  • "Do Not Exceed Safe Working Load"

Crane Operator Zone

  • "Authorised Crane Operator Only"
  • "Do Not Operate Without Valid Licence/Certificate"
  • Crane operation instruction board
  • "Pre-Operation Check: Perform Daily Before Use"

Floor-Level Signs

  • "Warning: Overhead Crane — Stay Alert"
  • "Do Not Walk Under Suspended Load"
  • "Hard Hat Mandatory in Crane Bay"
  • "Crane Travel Path" floor markings
  • "Crane Exclusion Zone — Keep Clear During Lift Operations"

Hand Signal Chart

  • Standard crane hand signal chart per IS 3177 — displayed at the crane bay and visible to both operator and signaller
  • Signals include: Hoist, Lower, Boom Up, Boom Down, Swing Left, Swing Right, Stop, Emergency Stop, Travel

Rigging and Sling Safety

  • "Inspect Slings Before Each Use"
  • Sling angle factor chart — showing load capacity reduction at different sling angles
  • "Do Not Use Damaged or Frayed Wire Rope Slings"
  • "Colour Code of the Month" display for sling inspection tagging systems

Crane Maintenance Signs

  • "Crane Under Maintenance — Do Not Operate"
  • LOTO on crane isolation switches
  • "Do Not Stand on Crane Bridge Without Safety Harness"

Our crane safety sign packages include SWL boards, hand signal charts, and floor-level warnings. Browse crane safety signs or contact us for custom SWL boards with your specific crane capacities.