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I. Overview of the chain hoist：
Hoist chain is one of the important means of lifting machinery. Hoist chain of high quality alloy steel (manganese steel) materials, strict quality control throughout, hoist chain to reach 80 international standards.
2, the characteristics of the chain hoist：
Surface treatment: Impregnation black, hot-dip zinc, galvanized, carburizing
Strength rating: G80
Safety factor: 4-fold safety factor
Material: containing Cr, Ni, Mo alloy high
Selection criteria: GB / T20947-2009
3, the hoist chain parameters：
| d | inner lenght（p） | width | wll（T） | breaking load（T） | Min | weight（kg/m） | |||
| model | tolerance | diameter | min（a） | max（b） | |||||
| 6.3 | ±0.2 | 19 | 7.2 | 20.4 | 1.2 | 29 | 48 | 0.85 | |
| 7.1 | ±0.3 | 21 | 8.4 | 23.8 | 1.6 | 38.4 | 64 | 1.1 | |
| 8 | ±0.3 | 24 | 9.6 | 27.2 | 2 | 48 | 80 | 1.38 | |
| 9 | ±0.4 | 27 | 10.8 | 30.6 | 2.5 | 60 | 100 | 1.94 | |
| 10 | ±0.4 | 30 | 12 | 34 | 3.2 | 77 | 128 | 2.2 | |
| 11.2 | ±0.4 | 34 | 13.2 | 37.4 | 4 | 96 | 160 | 2.7 | |
I. Overview of the chain hoist：
Hoist chain is one of the important means of lifting machinery. Hoist chain of high quality alloy steel (manganese steel) materials, strict quality control throughout, hoist chain to reach 80 international standards.
2, the characteristics of the chain hoist：
Surface treatment: Impregnation black, hot-dip zinc, galvanized, carburizing
Strength rating: G80
Safety factor: 4-fold safety factor
Material: containing Cr, Ni, Mo alloy high
Selection criteria: GB / T20947-2009
3, the hoist chain parameters：
| d | inner lenght（p） | width | wll（T） | breaking load（T） | Min | weight（kg/m） | |||
| model | tolerance | diameter | min（a） | max（b） | |||||
| 6.3 | ±0.2 | 19 | 7.2 | 20.4 | 1.2 | 29 | 48 | 0.85 | |
| 7.1 | ±0.3 | 21 | 8.4 | 23.8 | 1.6 | 38.4 | 64 | 1.1 | |
| 8 | ±0.3 | 24 | 9.6 | 27.2 | 2 | 48 | 80 | 1.38 | |
| 9 | ±0.4 | 27 | 10.8 | 30.6 | 2.5 | 60 | 100 | 1.94 | |
| 10 | ±0.4 | 30 | 12 | 34 | 3.2 | 77 | 128 | 2.2 | |
| 11.2 | ±0.4 | 34 | 13.2 | 37.4 | 4 | 96 | 160 | 2.7 | |
