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Parsons Xtra mining chains have been developed using Parsons Chain’s
expertise in materials technology and heat treatment techniques. First
developed 20 years ago as ‘Enhanced’ chain the range is reliable and
well proven at those mines where operational conditions are suitable
for high specification chain.
Xtra chain offers higher tensile strength, longer fatigue life and
increased toughness properties when compared with chain conforming with
the latest DIN specifications for round and flat link chain. Optimum
hardness profiles for each link reduce interlink wear giving
significantly increased operational life.
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Round Link Xtra Mining Chains - Mechanical Properties
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Nominal Size
d x t
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Reference Number |
Test Force
TF |
Breaking Force
BF |
Operating Force
WF |
Bend Test deflection -min |
Fatigue Cycles |
kN
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| mm |
kN |
kN - MAX |
mm |
min |
typical |
| 22 x 86 |
22086RXR |
525 |
745 |
456 |
22 |
200,000 |
>500,000 |
| 26 x 92 |
26092RXR |
733 |
1040 |
637 |
26 |
| 30 x 108 |
30108RXR |
976 |
1390 |
848 |
30 |
| 34 x 126 |
34126RXR |
1250 |
1780 |
1090 |
34 |
| 38 x 137 |
38137RXR |
1560 |
2220 |
1360 |
38 |
| Reference Numbering System |
38137
R
X
R
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Size and Pitch
Round Link
Xtra Specification
Rust Preventative
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Elongation at test force - 1.6% max
Total elongation at fracture - 14% min
Impact KV Test - 50J. min.
Refer to DIN22252:2001 for verification methods and procedures |
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| Compact Xtra Mining Chains - Mechanical Properties |
Nominal Size
d x t |
Reference Number |
Test Force
TF |
Breaking Force
BF |
Operating Force
WF |
Bend Test deflection -min |
Fatigue Cycles |
| Kn |
| mm |
kN |
kN - MAX |
mm |
min |
typical |
| 34 x 126 |
34126CXRW/F |
1250 |
1780 |
1090 |
34 |
125,000 |
>200,000 |
| 38 x 126 |
38126CXRW/F |
1560 |
2220 |
1360 |
38 |
| 38 x 137 |
38137CXRW/F |
1560 |
2220 |
1360 |
38 |
| 38 x 146 |
38146CXRW/F |
1560 |
2220 |
1360 |
38 |
| 42 x 146 |
42146CXRW/F |
1910 |
2720 |
1660 |
42 |
| 48 x 152 |
48152CXRW/F |
2500 |
3550 |
2170 |
48 |
| Reference Numbering System |
48152
C
X
R
W
F |
Size and Pitch
Compact Link
Xtra Specification
Rust Preventative
Welded End Links
Forged (Vertical) End Links |
Elongation at test force - 1.6% max
Total elongation at fracture - 11% min
Impact KV Test - 50J. min.
Refer to DIN22255:2001 for verification methods and procedures |
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