Hoist Chains EN 818-7, Electro-Galvanized
Hoist Chains EN 818-7, Electro-Galvanized
|
d mm |
tolerance mm |
pitch mm |
tolerance mm |
b1 min. mm |
b2 max. mm |
weight kg/m |
load capacity in kg |
proof force |
breaking force |
||
|
T |
DAT |
DT |
|||||||||
|
4 |
±0.2 |
12 |
0.25 |
4.8 |
13.6 |
0.35 |
500 |
400 |
250 |
12.6 |
20.1 |
|
5 |
±0.2 |
15 |
0.30 |
6.0 |
17.0 |
0.54 |
800 |
630 |
400 |
19.6 |
31.4 |
|
6 |
±0.2 |
18 |
0.35 |
7.2 |
20.4 |
0.80 |
1.100 |
900 |
560 |
28.3 |
45.2 |
|
7 |
±0.3 |
21 |
0.40 |
8.4 |
23.8 |
1.10 |
1.500 |
1.200 |
750 |
38.5 |
61.6 |
|
8 |
±0.3 |
24 |
0.50 |
9.6 |
27.2 |
1.40 |
2.000 |
1.600 |
1.000 |
50.3 |
80.4 |
|
9 |
±0.4 |
27 |
0.50 |
10.8 |
30.6 |
1.80 |
2.500 |
2.000 |
1.250 |
63.6 |
102.0 |
|
10 |
±0.4 |
30 |
0.60 |
12.0 |
34.0 |
2.20 |
3.200 |
2.500 |
1.600 |
78.5 |
126.0 |
|
11 |
±0.4 |
31 |
0.60 |
13.2 |
37.4 |
2.70 |
3.800 |
3.000 |
1.900 |
95.0 |
152.0 |
|
12 |
±0.5 |
36 |
0.70 |
14.4 |
40.8 |
3.10 |
4.500 |
3.600 |
2.200 |
113.0 |
181.0 |
|
13 |
±0.5 |
39 |
0.80 |
15.6 |
44.2 |
3.70 |
5.300 |
4.200 |
2.600 |
133.0 |
212.0 |
|
14 |
±0.6 |
42 |
0.80 |
16.8 |
47.6 |
4.30 |
6.000 |
5.000 |
3.000 |
154.0 |
246.0 |
|
16 |
±0.6 |
48 |
0.90 |
19.2 |
54.4 |
5.60 |
8.000 |
6.300 |
4.000 |
201.0 |
322.0 |
|
18 |
±0.9 |
54 |
1.00 |
21.6 |
61.2 |
7.00 |
10.000 |
8.000 |
5.000 |
254.0 |
407.0 |
|
20 |
±1.0 |
60 |
1.20 |
24.0 |
68.0 |
8.70 |
12.500 |
10.000 |
6.300 |
314.0 |
503.0 |
|
22 |
±1.1 |
66 |
1.30 |
26.4 |
74.8 |
10.50 |
15.000 |
12.500 |
7.500 |
380.0 |
608.0 |
Usually +2/3 and -1/3
T – quenched and tempered
DAT – case-hardened
DT – case-hardened, with higher surface hardness and greater case depth than DAT
Hoist chains are available in 3 qualities – T, DAT, DT
T: the chain is not case-hardened and therefore has the highest load capacity for the same size.
Application: mainly for manual hoists, where speed is lower and wear is less.
DAT: the chain is case-hardened to 0.04 mm depth, is more wear-resistant, but its load capacity is lower than T because it is hardened.
Application – for electric hoists.
DT: the chain is hardened more than DAT, to 0.05 mm depth, and has relatively the lowest load capacity of the three for the same size.
Application – for electric hoists, high speeds.
Temperature limits
|
Design |
Upper limit °C |
Lower limit °C |
|
T |
200 |
-40 |
|
DAT |
200 |
-20 |
|
DT |
200 |
-10 |