EOT Crane Parts Guide

EOT Crane Parts Type, EOT Crane Parts Application, EOT Crane Parts FAQ

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EOT Crane Parts Type

PartTypeApplicationDifferences
HoistWire rope or chainCreates lift by holding, raising, or lowering the loadWire rope hoists are generally used for heavier lifting and are more durable, while chain hoists are more suitable for lighter loads and typically more cost-effective
TrolleyUnder running or top runningSupports the hoist and moves horizontally along the crane bridgeUnder running trolleys have wheels that run on the bottom flange of the crane beam, while top running trolleys have wheels that run on rails fitted to the top of the crane beam
BridgeSingle girder or double girderLoad-bearing beam that runs the width of the buildingSingle girder bridges are lighter and more compact, while double girder bridges are more robust and capable of handling heavier loads
End Trucks2, 4, or 8 wheel configurationsMove the bridge up and down the runwayThe number of wheels varies based on the crane’s capacity
ControlsPendant, radio remote, or cabinAllow the operator to run the cranePendant stations are fixed, radio remotes offer more mobility, and cabins provide a dedicated operating space
Electrical Control PanelSteel box containing motor driving equipmentControls all electrical functions of the craneHouses VFDs, contactors, fuses, switches, and connections to limit switches
DSL BusbarsHighly electrically conductive metalsDistribute and carry power from source to destinationSupply power from the grid to the crane control panel
Limit SwitchesRotary and gravityControl and secure crane movementsRotary switches calculate hook travel and control up/down movement, while gravity switches secure the limit switch operation

Key Differences in EOT Crane Parts

  1. Hoists: The choice between wire rope and chain hoists depends on the load capacity and precision required
  2. Trolleys: The selection of under running or top running trolleys affects the overall crane design and load capacity
  3. Bridges: Single girder bridges are more suitable for lighter loads and compact spaces, while double girder bridges are preferred for heavy-duty operations
  4. Control Systems: The type of control system (pendant, radio remote, or cabin) impacts the operator’s mobility and control precision
  5. Limit Switches: Different types of limit switches serve specific purposes in controlling crane movements and ensuring safety

By understanding these differences in EOT crane parts, operators and maintenance personnel can better select, operate, and maintain their crane systems for optimal performance and safety.

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EOT Crane Parts Application

Here’s a table comparing EOT crane parts, their types, and applications:

PartTypesApplication
BridgeSingle girder, Double girder

Spans the width of the building and supports the trolley and hoist

End Trucks2, 4, or 8 wheel configurations

Houses the wheels on which the entire crane travels

HoistWire rope, Chain

Raises, holds, and lowers the maximum rated load

TrolleyUnder running, Top running

Supports the hoist and moves horizontally along the crane bridge

RunwayFixed rails or runways

Provides the track and support system on which the crane operates

Runway RailSteel rails

Supports the crane’s movement along the runway

ControlsPendant, Radio remote, Cabin

Allows the operator to control crane movements

Limit SwitchesRotary, Gravity

Controls and secures crane movements, calculates hook travel

GearboxesVertical (Single girder), Horizontal (Double girder)

Facilitates crane operation and movement

MotorsTEFC (Totally Enclosed Fan Cooled)

Provides power for crane movement and lifting operations

This table provides an overview of the main EOT crane parts, their types, and their specific applications in the crane’s overall functionality. Each component plays a crucial role in the crane’s operation, from supporting the structure to controlling movements and ensuring safe lifting operations.

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EOT Crane Parts FAQ

What are the main components of an EOT crane?

The main components of an EOT crane include:

  • Bridge – The principal structural component that spans the width of the building
  • End trucks – Located on either side of the bridge, housing the wheels for crane travel
  • Trolley – Supports the hoist and moves horizontally along the bridge
  • Hoist – Creates the lift by raising, holding and lowering the load
  • Controls – Allow the operator to run the crane (pendant, radio remote, or cabin)
  • Runway – The track and support system on which the crane operates
  • Electrical components – Motors, brakes, limit switches, etc.

 

What’s the difference between wire rope and chain hoists?

Wire rope hoists are generally used for heavier lifting and are more durable, while chain hoists are more suitable for lighter loads and are typically more cost-effective

 

What types of trolleys are used in EOT cranes?

There are two main types of trolleys:

  1. Under running trolleys – Wheels run on the bottom flange of the crane beam
  2. Top running trolleys – Wheels run on rails fitted to the top of the crane beam

 

What are the common control options for EOT cranes?

Common control options include:

  • Pendant stations (fixed)
  • Radio remote controls (wireless)
  • Operator cabins

 

What safety features are typically included in EOT cranes?

Common safety features include:

  • Overload protection
  • Limit switches (for hook travel and crane movement)
  • Emergency stop functions
  • Audible/visual warning systems

 

How often should EOT crane parts be inspected?

Inspection schedules can vary based on usage, but frequent checks for wear and tear are advisable, along with periodic in-depth inspections by qualified personnel

 

What factors can affect the longevity of EOT crane parts?

Temperature, humidity, and corrosive environments can all impact the longevity and functionality of crane parts

 

What signs indicate that a crane component may need replacement?

Signs like increased noise, decreased performance, and visible wear and tear can indicate that a component may need to be replaced.

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