KITO ER2 Serie Manuel Du Propriétaire page 17

ISO
●
ISO 4301 specifies the total operating hour (service life) of gears and bearings according to the loading status. For
example, the total operating hour (service life) of the mechanism when it is constantly applied with the capacity is 1,600
hours for M5. The total operating hour is 6,300 hours when operated with a medium load.
Loading status*
800
Light
Medium
Heavy
Ultra heavy M4
* Rate of loading
Light : A case where the capacity is rarely applied. Usually the hoist is used with a light load.
Medium : A case where the capacity is applied considerably frequently. Usually the hoist is used with a medium load.
Heavy : A case where the capacity is applied considerably frequently. Usually the hoist is used with a heavy load.
Ultra heavy : A case where the capacity is applied constantly.
ASME HST
●
Hoist duty class Typical areas of application
Light machine shop fabricating, service,and
H2 maintenance; loads and utilization randomly
distributed; capacitys infrequently handled.
General machine shop fabricating, assembly,
H3 storage, and warehousing; loads and utilization
randomly distributed.
High volume handing in steel warehouses,
machine shops, fabricationg plants and mills,
H4 and foundries; manual or automatic cycling
operations in heat treating and plating; loads at
or near capacity frequently handled.
* The grade symbols are identical to those of ASME HST-1M. (Performance standard for Electric Chain Hoist)
FEM
●
Relation between ISO-and FEM-Denominations
1 Dm 1 Cm 1 Bm
M 1 M 2 M 3
V0.06 V0.02 V0.25 V0.5
Load Cubic
spectrum mean value
1 L1 K 0.50
2 L2 0.50<K 0.63
3 L3 0.63<K 0.80 1 Dm 1 Cm 1 Bm 1 Am
4 L4 0.80<K 1.00 1 Cm 1 Bm 1 Am
* The grade symbols are identical to those of FEM 9.511.
(Rules for Design of Serial Lifting Equipment: Classification of Mechanisms)
1600
M4
M5
1 Am 2 m
M 4 M 5
Class of operation time
V1
T0 T1 T2 T3 T4
Average operation time per day in hours
0.12 0.25 0.5 1 2
– – 1 Dm 1 Cm 1 Bm 1 Am
– 1 Dm 1 Cm 1 Bm 1 Am
2 m
2 m 3 m
Total operating hour h
3200 6300
M4
M4 M5
M5 M6
M6
Operation time ratings at K=0.65
Unlformly distributed
work periods
Max. on Max. No.
time, min / hr starts / hr
7.6 (12.5%) 75
15 (25%) 150
30 (50%) 300
3 m 4 m 5 m
M 6 M 7 M 8
V2 V3 V4 V5
T5 T6 T7 T8
> 16
4 8 16
2 m 3 m 4 m
2 m 3 m 4 m 5 m
3 m 4 m 5 m –
4 m 5 m – –
12500 25000
M5 M6
M6
Infrequent
work periods
Max. on time from Max. No.
cold start, min of starts
15 100
30 200
30 300
Average
Class of Calculated total
operating time
operating operating time
per day
time (in hours)
(in hours)
V0.06 T0 0.12 200
V0.12 T1 0.25 400
V0.25 T2 0.5 800
V0.5 T3 1 1,600
V1 T4 2 3,200
V2 T5 4 6,300
V3 T6 8 12,500
V4 T7 16 25,000
V5 T8 >16 50,000
(to be continued)
1 1
17