APPLICATION & SELECTION

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Application & Selection

Crane application grade

Machine Maintenance Light Handing – Machine ShopsI ~ II
Warehouse – Ordinary WorkshopII ~ III
Industrial Processes – GripperII ~ IV
Lifting Magnet – Cast-iron ProcessesII ~ IV
Steel Yard – Ladie CraneIII ~ 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

Frequency of usage by ED percent and No. of starts

Load Distribution
Average operating time (hr / day)
Loading rateLoad distribution model<1.5<2.5<4<6
Light
When normally working with 50% or less of WLL and sometimes with WLL
IIIIIIIV
Standard
When normally working with 50% or less of WLL and sometimes with WLL
IIIIIIIV
Heavy
When using a heavy duty device like a lifting magnet, and normally working with WLL
IIIIIIV 
WLL: Indicates maximum load (working load limit) which a hoist is designed to support in general service.
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