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: Hoist System : Big Elephant : Wire Rope Hoist : Application & Selection
BACK TO INDEX CONSTRUCTION & FEATURES APPLICATION & SELECTION
     
  Application & Selection  
     
 
 
Crane application grade
 
Machine Maintenance Light Handing - Machine Shops I ~ II
Warehouse - Ordinary Workshop II ~ III
Industrial Processes - Gripper II ~ IV
Lifting Magnet - Cast-iron Processes II ~ IV
Steel Yard - Ladie Crane III ~ IV
 
   
 
 
Frequency of usage by ED percent and No. of starts
 
 
Frequency of Usage
Item
I
II
III
IV
ED percent (% ED)
15
25
40
60
No. of starts (starts / hour)
180
200
240
360
 
   
 
 
Relationship of load and average operating time to frequency of usage (For 10 hr/day of work)
 
Load Distribution
Average operating time (hr / day)
Loading rate Load distribution model <1.5 <2.5 <4 <6
Light
When normally working with 50% or less of WLL and sometimes with WLL
I II III IV
Standard
When normally working with 50% or less of WLL and sometimes with WLL
I II III IV
Heavy
When using a heavy duty device like a lifting magnet, and normally working with WLL
II III IV  
WLL: Indicates maximum load (working load limit) which a hoist is designed to support in general service.
 
   
     
 
 
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