How to make a flat lift sling

17 Mar.,2022

polypropylene fiber of international advanced level and produced by advanced weaving technology and equipment of sewing method, mainly used for lifting in various occasions.

 

 

N95 Mask
Lifting Slings from HongJue is made of synthetic fiber (100% PES), nylon and polypropylene fiber of international advanced level and produced by advanced weaving technology and equipment of sewing method, mainly used for lifting in various occasions.
The products conform to GB/T8521-1997, EN1492-1:2000 standards and have passed GS, CE, ISO9001, JIS, KR, MA certification.

How to make a flat lift sling

Step 1: Weaving the Lift Sling From HongJue

The straps are woven from fabric without any visible defects and all the threads in the weave should be made of the same material. Standard widths are 25mm, 35mm, 50mm, 75mm, 100mm, 150mm, 200mm, 300mm.

Step 2: Pay attention to deviation

The allowable deviation of belt width is 10% when the belt width is 100mm, and 8% when the belt width is more than 100mm. The thickness of the belt should be even, and when the sling is composed of multiple belts, the thickness of each belt is the same.

How to make a flat lift sling

Step 3: Sewing lifting sling

1. the sewing of the seam shall be done with the same high quality thread as the material of the strap, and the seam shall be flat.

2. The stitching should leave a distance to the edge of the width of the tape when sewing. For the tape with thickness not more than 10mm, leave 24mm without sewing. For tapes thicker than 10mm, leave 48mm unsewn.

3. The stitching line should have backstitching treatment at the end, and the backstitching length should not be less than 25mm.

Step 4: Length setting

The soft ring of the flat sling should not reduce the bearing capacity of the belt. The length of the soft ring should meet the following requirements.

1. when the width of the belt is 2535mm, the length of the soft ring of the soft ring shall be 100mm.

2. when the width of the tape is 50150mm, the length of the soft ring should be 3 times the width of the tape.

3. When the width of the tape is greater than 150mm, the length of the soft ring should be 2.5 times of the width of the tape.

Step 5: Setting metal parts

The end piece is the metal piece installed in the soft ring of the sling, and the inner diameter of the soft ring of the sling required to be matched with it should not be less than 2.5 times of the diameter of the end piece. The breaking strength of the metal material of the end piece shall not be less than 4 times of the limit working load of the sling. The end pieces are not allowed to use casting pieces.

How to make a flat lift sling