What are the key points that should be paid attention to when choosing sling products?

Lifting slings have played a great role in lifting operations, and we have some details that need to be paid attention to when purchasing and using, hoping to attract everyone's attention. When purchasing slings, each factory should apply for the purchase of lifting slings variety, specification and quantity according to the needs of production. The person in charge of the relevant supervision department shall carry out flaw detection inspection and other quality control of the lifting equipment before warehousing, and make a good record.

The person in charge of the safety and security department should identify the supply qualification of lifting equipment and spot check the certificate, and supervise the safe use of slings. The relevant user unit is responsible for the implementation of the safe use of lifting equipment system and the daily safety education and safety management of users. The use of lifting slings must be in accordance with the relevant standards, must be used within the rated load range, and it is strictly forbidden to overload it.

When choosing a sling, it is necessary to consider the main parameters such as the size and type of sling and the load size, weight, shape, and hoisting method to be adopted, and choose a sling that matches the working environment and use mode. The correct way to use the sling:

1.The sling must be properly positioned, connected to the load in a safe manner, and the sling must be mounted on the load so that the load can balance the width of the sling.

2.The branches of the sling should be symmetrically and evenly distributed according to the design, with the same vertical angle. Slings with multiple combinations cannot exceed a large angle in the vertical direction.

4.In order to avoid dangerous accidents, the load should not be tilted or slipped off the sling, and the load should be balanced and stable.

3.Slings are more protected from sharp edges, friction and abrasion.

When purchasing steel coil spreader sling, it is necessary to purchase qualified products with safety certification, and resolutely cannot use unqualified products. If the sling is self-denying, then it should conform to the quality requirements of national and professional rules, and its technical objectives should not be lower than national and professional standards and regulations. When the steel coil spreader is used, the user should be very aware of the contents of the sling, if you don't understand, you can't operate it rashly to prevent danger.

The sling used should conform to the appearance characteristics and requirements of the workpiece to be hoisted, if it does not conform to it, it is not customary, it must not be used. Before using the sling, it should be carefully inspected, and after all the inspections are correct, the talent can be used, otherwise it can not be used. Before hanging, the cable point should be accurately selected, and the workpiece should be recognized as robust before progressing.

The spreaders and accessories used must not exceed the additional lifting capacity. The slings and accessories cannot be damaged during the operation, and if necessary, some protection or protection methods can be used. After the use of the sling, it should be put back to the storage place in time and cannot be placed at will.

When selecting the sling specifications, the size, weight, shape of the load to be lifted, and the use coefficient of the common influence of the hoisting method to be adopted must be included in the calculation consideration, and the requirements of the ultimate working force given, while the working environment and the type of load must be considered. It is necessary to choose a sling of the appropriate length that has sufficient capacity and can meet the use of the mode, and if multiple slings are used to lift the load at the same time, the same type of sling must be selected; The raw material of the flat sling must not be affected by the environment or load. Regardless of whether attachments or soft lifting lugs are required, careful consideration must be given to matching the end of the sling with auxiliary attachments and lifting equipment.

The slings purchased must be products that are produced, inspected, certified and maintained by professional manufacturers in accordance with national standards. In the obvious place of the product, there must be a non-wear rated lifting capacity, production number, manufacturing date, manufacturer name and other marks. The user unit shall prepare safe use procedures and maintenance systems according to the characteristics of the instruction manual and the use environment.

The purchase of slings requires procurement personnel to have certain relevant knowledge, be able to master the relevant purchase skills, and make the correct choice of sling products, which is an important work to ensure the interests of sling users.

Summary. Hello dear, the operator found that the following sling products must not be used: damaged, worn, deformed, overloaded, and sling products whose service life has expired.

Hello dear, the operator found that the following sling products are resolutely pure rubber can be used: damage, foot side wear, deformation, overload, service life has expired sling products.

Slings are strictly forbidden if they are overloaded, worn, damaged, or unfit for use. In addition, the use of noisy hoisting equipment such as the rope must comply with the relevant safety regulations and operating procedures to ensure the safety of personnel and equipment.

Summary. Rigging: When lifting an item, a flexible combined fetching device that is tied to the hook and hung on the item is called a rigging or sling.

The spreader can directly lift items, mainly including: hooks, grabs, clamps, suction cups and special spreaders.

The composition of the rigging: it is generally composed of high-strength flexible parts (wire ropes, lifting ring chains, man-made fiber belts, etc.) with end rings, hooks, shackles, etc.

Ultimate working load of a sling: refers to the maximum mass (weight) that a single sling is allowed to bear when suspended vertically under general use conditions.

Rigid fetching device for lifting and lifting operations Rigging: When lifting items, the flexible combined fetching device that is tied to the hook and hung on the item is called rigging or sling. The spreader can directly lift the items, mainly including:

Hook carrying, grab, gear clamps, suction cups and special spreaders, etc. The composition of the rigging: it is generally composed of high-strength flexible parts (wire ropes, lifting ring chains, man-made fiber belts, etc.) with end rings, hooks, shackles, etc.

The ultimate concealed working load of the sling: refers to the maximum mass (weight) that a single sling is allowed to bear when suspended vertically under normal use conditions.

The selection of slings should be adapted to the types of items to be lifted, environmental conditions and specific requirements.

Before use, the sling is strictly inspected, and it can only be used if it meets the safety color, and if it is found that the damaged sling can no longer be used, it needs to be scrapped.

When carrying out hoisting operations, the slings selected must be the same length.

The Lingying spreader cannot exceed its rated lifting capacity, and the sling must not exceed its maximum safe working load.

Commonly used slings, there are lifting belts, lifting chains and wire rope rigging, the slings must match the lifting equipment, such as 5 tons or 10 tons, etc., the crane is marked with the maximum lifting capacity. The hoisting belt will not damage the hoisting object but the wear resistance is poor, the hoisting chain is easy to maintain but the weight is larger, the wire rope buckle is the most widely used, but it is easy to scratch the object and the operator after the broken wire, each has its own advantages and disadvantages, and it is best to meet their hoisting needs.

The phosphate coated wire rope produced by the patented technology gives priority to the use of manganese or zinc-manganese phosphating, compared with the smooth wire rope production process, only the wear-resistant phosphating treatment process of the rope-making steel wire is increased, and the wear resistance and corrosion resistance of the steel wire surface after phosphating are greatly improved, and the use of phosphating steel wire directly twists the wire rope (the wire is not drawn after phosphating). The current fatigue test data show that the fatigue life of the phosphate coated wire rope is about 3-4 times that of the smooth wire rope of the same structure, and 2-3 times that of the imported wire rope (under comparable conditions in the laboratory). Manganese phosphating is wear-resistant phosphating, which can completely solve the wear problem in the use of wire rope.

According to the current situation of the wire rope market, the first of manganese phosphating coated wire rope is higher than that of smooth wire rope, and the service life extension is much higher than the growth rate of **, therefore, the average daily use cost of phosphating coated wire rope is only about 30% of that of smooth wire rope, the average daily use cost is lower, the cost performance and quality stability are higher, and it is an upgraded product of smooth wire rope.

The commonly used wire ropes for lifting equipment include phosphate coated wire rope, galvanized steel wire rope and stainless steel wire rope, which are used in atmospheric environments, and the manganese phosphate coated wire rope produced by patented technology has the longest service life, and the hot-dip galvanized - phosphating double-coated wire rope is preferred in heavy corrosive environments. FYI.

Of course, users hope that the longer the service life of the hoisting rigging, the better, the wire rope hoisting rigging is a flexible part that the lifting industry can not do without, and the phosphate film on the surface of the wear-resistant phosphate coating wire rope is a wear-resistant protective coating, which can greatly improve the wear resistance and corrosion resistance of the wire surface. Wear-resistant phosphate coated wire rope is currently the only wire rope that does wear-resistant protective coating, fatigue life is three to five times that of smooth wire rope, longer service life, more cost-effective, long fatigue life of wire rope is the best fatigue resistance, but also the highest quality, the use of wear-resistant phosphate coated wire rope made of hoisting rigging rope buckle is also the highest quality level, wear and corrosion resistance, convenient and convenient maintenance, lower unit use cost.