11.2 X 34mm Grade 80 Round Link Chain
11.2 x 34mm Grade 80 Round Link Chains:
Dimension: 11.2mm diamter x 34mm (pitch) x 13.2mm(inner width min)
Breaking load: 158KN min
Proof Force: 98.5KN min
Material: 20Mn2
Case Hardness: 45-50HRC
Specification of 11.2 x 34mm High Preceision Hoist Chain:
Size d x p | Working load WLL/T | Proof Force KN min | Breaking Force KN min | Pitch mm | Inner width mm min | Outer width mm max | Weight kg/m |
| 11.2 x 34 | 4 | 98.5 | 158 | 34 | 13.2 | 37.4 | 2.68 |
Working Process of High Precision Hoist Chain:
Cold drawing 2. bending 3. welding 4. calibrated 5. case hardened and heat treatment 6. calibrated again 7. 6 meter proof force test 8. cutting 9. black oxide 10. packing
Engineers and technical workers will test breaking load every 30 minutes, which assure welding quality
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