|
Crane
Selection Guide:
As per
as Indian Standards Specification
807 and 3177 cranes have been basically divided
into following classes.
Class-I
Light Duty ( M 1, M 2 )
There are normal maintenance which are no in
constant use. Cranes for periodical maintenance of
plant and machinery come under this category maximum
1000 working hour per annum their speeds are slow
and the structures are light.
Class-II Medium Duty ( M 3, M 4, M 5 )
This
class perhaps covers the largest number of cranes
used by the industry. In workshops, Foundries,
Processing Plants, ware-houses and in fact every
area where a fair degree of activity exists. These
cranes are designed for maximum 2000 working hours
per annum.
Class-III Heavy Duty
( M 6, M 7 ).
For
Workshops and production Shops, Where the cranes,
in addition to normal handling work, also become a
part of production process by helping production
particularly in those workshops which run 2/3 shifts
per day .The total workload of these cranes is about
3000 hours per annum.
Class-IV
Extra Heavy Duty ( M 8 )
This
class includes very special cranes of highest
importance in steel industries, cement industries,
Storage Houses& in some other selected industries.
these are designed for continues duty operations.. |
