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The flat sling is a relatively economical and practical sling. It can continuously change the focus point and can be used in a variety of ways. Guangzhou Gangqiang Steel Wire Rope & Sling Co., Ltd. can make single-layer, double-layer, three-layer, and four-layer flat ring slings according to customer needs. They are made of polyester, nylon and polypropylene. The safety factor of our company is 4:1, 5:1, 6:1, 7:1, 8:1 of various products. The products meet the safety requirements of the international standard ISO9001, and customers can order products with special lengths according to their needs. Flat slings have the advantages of light weight, softness, high safety factor, long service life, non-conductivity, no danger of electric shock, good resistance to corrosion, etc., and are gradually replacing wire rope slings and chain slings.
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In our work and life, when lifting items, we often use flat slings. This is a very useful transportation tool with many unique advantages. First of all, it has a very light weight, which is very important. It works, because if such a sling is used, it will not increase the weight of the item itself, so it can reduce some of the burden during high-altitude transportation, so that everyone can get a good experience and effect when using it. Secondly, in the use of flat slings, what you can see is that this product has a very good performance. It has very high strength properties, so it can bring a good guarantee to use it, so that everyone can use it. At times, you can get good help and good protection. You don't need to worry too much when using it, and the personnel and items are well guaranteed. When using a flat sling, it can have a very convenient effect. Because the sling is flat, it will not scratch the object to be hung, and it can also lift the object more smoothly. All of them have been well guaranteed, and when everyone uses them, they have good results, especially for some relatively fragile and fragile items, such tools are very easy to use. Guangzhou Gangqiang Steel Wire Rope & Sling Co., Ltd. specializes in the production of lifting belts for more than 40 years and has rich experience in the production of lifting belts. Welcome new and old customers to negotiate!
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The flexible sling is a rigging in operation. Because its contact surface is wide and flat, it is not easy to damage the objects to be hoisted. Because of its good acid and alkali resistance, it is suitable for hoisting paint products, plastic products, machine tools and pipes and pipes aftersurface treatment or anti-corrosion and moisturizing. This product has theadvantages of light weight, softness, high safety factor, long service life,
non-conductivity, no risk of electric shock, and good resistance to corrosion. It is gradually replacing steel wire rope rigging and chain rigging to protect the surface finish of the product.
Let's take a look at how the flexible sling lifts items:
1.When in use, hang it directly into the force center of the hook, and
directly hang it at the hook tip of the hook.
2.The use must be directed by qualified personnel, and overloading is
strictly prohibited. Crossing, twisting, knotting, and twisting are not allowed, and the correct special link for hoisting should be used to link.
3.When working with two slings, hang the two slings directly into the double ditch, and hang each at the symmetrical force center of the double hook; when using four slings, hang each two slings directly into the double hook, pay attention to the inner sling. There should be no overlap and mutual extrusion, and it should be symmetrical to the force center of the hook.
4.When encountering goods with sharp corners and edges, the sling must be protected by means of sheaths and corner protectors, so as to prolong its service life and eliminate potential safety hazards. When a single sling is required to lift the cylinder, a double-turn choke should be used. 5. Since the curved part of the hook cannot be uniformly loaded in the width direction, it is affected by the internal strength of the hook. If the diameter of the hook is too small, the joint with the loop eye of the webbing is sufficient, and the correct connector should be used for linking. 6. When hoisting pipe objects, the correct hoisting method should be adopted, and the hoisting angle should be less than 60°. 7. Objects should not be pressed on the sling, and no attempt should be made to pull the sling from below to cause danger. Use the object to cushion it, leaving enough space for the sling to be taken out smoothly. 8. The opening angle of the ring eye should not be greater than 20°, and the ring eye should not be broken during the hoisting process.
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The stitches of the polyester sling should be firm and not loose, and at the same time, the uniformity and density of the stitches should be ensured, which is an important prerequisite for ensuring its strength. After doing the processing of these sewing work, a very ideal strength can be achieved. To ensure the strength of the polyester sling, it is necessary to achieve the unity of the suture and the material of the sling. Only when the suture can be fully integrated into it can all parts of the whole have the same strength. When stitching, the stitches need to be located inside it to avoid damage to its edges, and at the same time to ensure that the stitches are smooth, too rough stitches can easily lead to cracks. The label is the most traditional way of information identification. The label is to the polyester sling as the document is to the person. The label contains a series of related information such as rated load, length, material, manufacturer's name, and implemented standard number. We can identify the rated working load of a product through the label. Many people may not understand the identification of black lines very well. Each product is sewn with black lines, and the number of black lines on different rated working loads is also different. This can be verified according to its color. Generally, each black line represents 1 ton, and the more black lines means greater rated working load. Color identification belongs to the rated working load identification method, which is the main reason why we will see the color diversity of this product. According to international standards, purple represents 1 ton, green represents 2 tons, yellow represents 3 tons, red represents 5 tons, and brown represents 6 tons, blue represents 8 tons, orange represents more than 10 tons. This distinction allows us to understand the rated working load more intuitively. The dyeing of polyester suspenders requires pure color, uniform color and no obvious color difference. If there is a chromatic aberration in the dyeing process, it can be solved by the following methods, which can reduce the chromatic aberration on the belt skin and achieve a uniform color light. Put 2%-4% PALEGAL-SF in the dyeing tank, adjust with acetic acid with pH value of 4-5, heat up to 125-135 ℃, and treat in the dyeing tank for 1-2h to start heating and dyeing.
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The advantages of flat slings
1. The flat sling has a wide bearing surface, which can reduce the pressure of the surface load
2. The surface of the sling is smooth, when hoisting delicate objects, it will not hurt the objects to be hoisted.
3. The flat sling has higher safety, and the weight is only 20% of the wire rope with the same load, which is safer to use and easy to carry
4. The hoisting belt has the advantages of shock absorption, non-corrosion, non-conductivity, and no sparks in flammable and explosive environments during hoisting and use.
5. The cross-sectional shape of the sling changes with the surface shape of the sling, and it is very soft and easy to bend. It will stick to or wrap around the sling during work, without damaging the sling, and at the same time reducing the possibility of hurting people.
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1. Avoid being cut by sharp tools during the lifting process, when lifting sharp corners, edges or rough goods, the outer layer of the sling can be protected by a belt or polyester to protect the sling and extend the lifespan of the sling.
2. During the hoisting operation, it is forbidden to connect the hoisting belt by knotting. The correct sling special connector should be used to connect.
3. The daily maintenance of the sling is very simple. Except for occasional cleaning in water with detergent, other maintenance is not required, but strong acid and alkali will cause damage to the sling.
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1. Do not use damaged slings
2. When hoisting, do not twist the sling
3. Don’t let the slings get knotted
4. Avoid tearing the sewing commissures or overloading
5. When moving the sling, do not drag it
6. Avoid robbing or oscillating loads
7. Each sling must be checked before use
8. Polyester has the function of resistance to inorganic acid, but it is easily damaged by organic acid
9. Polypropylene is suitable for use in places that can resist chemicals
10. Nylon has the ability to resist inorganic acid and is easily damaged by organic acid
11. When nylon is damp, its strength loss can reach 15%
12. If the sling is used in a place where it may be contaminated by chemicals or at high temperature, you should seek reference from the supplier.
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1. The body of the sling is cut, severely scratched, the strands are loose and partially broken.
2. The surface is severely worn, the sling is abnormally deformed and fluffed, and the wear reaches one-tenth of the width of the original sling.
3. When there is no sign, label, mark, or sign is not clear.
4. When the original color of the strap has changed greatly.
5. The bearing seams are frayed and the sutures are worn off.
6. There is a dead knot in the sling.
7. The sling is mildewed and deteriorated, and the surface has too much point-like looseness, corrosion, acid-base burning and thermal melting or scorching.
8. According to the regulations of relevant departments, if the above situation occurs and the hoisting belt is not used for more than one year for long-term storage, long-term open-air operation, open-air storage for more than 6 months, the strength is reduced, and the strength is often fatigued and used for more than one year, it needs to be scrapped. The sling that have been scrapped shall not be repaired and reused to avoid safety hazards.
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Ratchet tie down strap - structural features
Ratchet tie down strap is composed of webbing strap, tensioner and metal end parts. The tensioner is a hand-driven tensioning device with a maximum wrist force of 500N.
Ratchet tie down strap - main use
Ratchet tie down strap are mainly used for the fastening of items on trucks, trailers, ships or rails, and the bundling and fastening of steel, woodand various pipe items.
Ratchet tie down strap - scope of application
Ratchet tie down strap is also suitable for vehicle towing and rescue. Tightening straps cannot be used to lift loads. The ambient temperature ofthe tension belt is -40℃～+100℃. When using polypropylene webbing, the ambient temperature is generally -40℃～+80℃. It is strictly forbidden to use it in a high temperature environment. The ratchet tie down strap has various structural forms, and can be without end parts according to actual needs. Strap strength decreases with prolonged exposure to UV radiation, so straps should not be used for extended periods of time in areas with high UV radiation. Ratchet tie down strap avoid working with molten metals, acids, glass sheets, fragile items, nuclear reactors, and special environments.
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According to the order, the qualified high-performance polyester industrial filament is placed into the belt weaving machine, and then the machine is debugged, and the width and gram weight are inspected. After meeting the requirements of the order, the production of the webbing begins. After the semi-finished webbing comes out, check the quality, set the shape at high temperature according to the order requirements, then cut the length and size, sew into the specifications required by the customer's order, and then check whether the product is qualified. Complete the entire flat sling production process.
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According to the order, the qualified high-performance polyester industrial filament is placed into the belt weaving machine, and then the machine is debugged, and the width of the cylinder sleeve is checked. After meeting the requirements of the order, the production of cylinder sleeve begins. After the semi-finished product is woven from the cylinder sleeve, the quality is checked, and the shape is set at high temperature according to the order requirements, and then the length is cut, counted, and tested. On the other hand, to make a cylinder core, yarn is firstly loaded and wound into a platter, and then the leather material is threaded to produce and sew into the specifications required by the customer's order, and then check whether the product is qualified, cut the thread and singe, and pack the box after meeting the requirements. After shipment, the production process of the entire cylindrical sling is completed.
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According to the order, the qualified high-performance polyester industrial filament is loaded into the belt weaving machine, and then the machine is debugged, and the width and gram weight are inspected. After meeting the requirements of the order, the production of the webbing begins. After the semi-finished webbing comes out, check the quality, shape according to the order requirements, then cut the length and size, roll the long end of the tensioning belt, sew and hook, and check the quality; put the tensioner on the short end and sew and hook, and check whether the product is qualified as a whole. , if the requirements are met, the long and short ends will be packaged and shipped together, that is, the entire production process of the tension belt will be completed.
