How to choose and use a sling

1, a sling specifications, selection of the type specifications when choosing a sling, lifting loads must be the size,chain block weight, shape, and ready to adopt the combined effect of the lifting method is used to consider factors included in the calculation, to out of the limits of the work force requirements, work environment, the type of load must be considered. Must select both adequate capacity, but also to meet the proper way to use the length of the sling, if multiple sling used simultaneously lifting the load, you must use the same type of sling; flat sling material can not be influenced by environmental or loading effects. Whether or soft attachment lugs need to be carefully considered in the last paragraph sling and lifting equipment and auxiliary accessories to match.
2, restricting the use of the sling angle when using soft flat sling hanging ears, the minimum length can not be used lug lug less than 3.5-fold and the maximum thickness of the contact portion of the hook and hanging ears activities should not exceed 20 ° angle . When connecting with soft slings and lifting lug appliances, the slings and lifting equipment has been in contact part must be, unless the axial width does not exceed sling 75mm, lifting attachments bending radius must be at least sling 0.75 times the axial width. For example: in the cargo hook sling at least 0.75 times the radius of the axial width of the sling. Fabrics of a width which may be part of the cargo hook radius of influence, cargo hook curvature strongly influence the outcome hinder the width of the fabric balanced role.manual hoist Do not overload slings must be used in the right way coefficient, some way limit the work force may have been given on the label, multiple combinations and vertical slings must not exceed the maximum angle.
3, following a good experience in lifting before the planned start lifting and light lifting operation of the program.
4, lifting, the correct use of sling sling connection correctly in safe mode, placement, connected load, must be placed in a sling so that the load can balance the load on the role of sling width; still can not tie a knot sling suture site or distortion can not be placed on a hook or lifting device, and the upstanding portion sling always placed through away from the load, the hook and the locking point to prevent damage to the label.
5, the use of multiple combinations sling sling precautions multiple combinations limits the assessment of the work force depends on the combination of sling load-bearing symmetry, that is, when lifting, sling branch distribution symmetrical uniform according to the design, with the same vertical angle. 3 combined slings, if the branch is not uniform according to the design of the force, the maximum force on a branch, that branch would be designed to withstand the maximum power point close to the sum of the results of the same composition in the sling 4, if not rigid load , will also be counted. Note: For rigid load, most of which three gravity might be, or even two commitments that support only the remaining balance of rotating rings protect the load
6, when lifting, the protective sling sling away from sharp edges, friction and wear, or whether it is away from the load-lifting equipment, should be appropriate to strengthen and protect the sling portion of sharp edges from damage and wear, the necessary additional strengthen the protection of supplementation is necessary.
7, to ensure that lifting the load balancing in the lifting process, we must adopt a safe way to use slings, can not allow the load to tilt or fall from a sling; must arrange slings and lifting the load's center of gravity directly above the point, Let load balance, stability, if the load center is not under the lifting points, the movement crossed the sling may focus. Dangerous.
8, using the lifting sling way if you use hanging baskets, you can ensure that the load secure,manual block because there is no lock hanging like that kind of locking behavior, and you can flip through the sling from the focus, it is recommended to use together with two slings, sling limbs hanging vertically as much as possible, help to ensure equal load sharing between branches. When the lock hanging flat sling, it should be placed to allow natural angle (120 °) of the state, thus avoiding heat generated due to friction, sling neither by force is powerful position, nor an attempt to create a tight jaws, the correct safe way using a sling hanging double lock. Double lock hanging to ensure safety and prevent the load from sliding off the sling.
9, to ensure the safety of personnel in the lifting process, pay close attention to ensure the safety of personnel, must warn personnel in hazardous conditions, if necessary, to withdraw immediately from the danger zone. Hands or other body parts must be kept away sling, sling to prevent relaxation when hurt.
10, in the lifting process, must be exemplary manner must be exemplary lifting hoisting sling to pick up the slack from the sling taut until the load is gradually raised to a predetermined position, particularly important in hanging baskets or freedom taut friction bear the load.
11, controlling the rotation of the load if the load tends to be tilted down the lifting objects to ensure that the load is constrained to prevent accidental rotation of the load is ensured.
12, to avoid collision rigging, drag, friction, vibration, rigging to prevent damage to the ceiling must be taken to ensure that the load is restrained to prevent accidents and other objects flip or collision. Avoid dragging, pulling or oscillation load, if that will increase the Caucasus with the force. If the rigging to withstand the load, or load on the pressure in the rigging, it is not on the ground or rough surface drag sling.
13, rigging landed When lifting, the load in the case of equality constraints landing.
14, the correct storage sling when the sling after completion of lifting operations must be put back in the proper storage; if no longer in use, must be stored sling in a clean, dry, well-ventilated conditions at room temperature, and put on a shelf, away from heat, can be eroded appearance gas, chemicals, direct sunlight or other strong ultraviolet radiation. Priority storage items, you must check sling occurred in the course of any damage, not the store have been damaged sling. When lifting, the sling pollution by acid diluted with water or with the appropriate storage media in advance is recommended to neutralize. Lifting slings based on the chemical properties of materials and related reference to the recommendation from a supplier, we have already used the product in question is not perhaps be necessary. Sling in use becomes wet, or because of clean reasons, will be hung up to dry naturally.