Page 108 - Green Pin Product Catalog
P. 108

FOR WIRE ROPE                 diameter      required     torque        torque
                                                  min. no
                                                                value
                                                  of clips
                                      wire
                                                                             value
                                      rope
                                      mm
                                                                             Ft.Lbs
                                                                Nm
                                                                              1.5
                                      5
                                                    3
                                                                 2
                                                                3.5
                                                                              2.6
                                      6.5
                                                    3
                                                    4
                                                                  6
                                      8
                                                                              4.4
                                                                  9
                                                                              6.6
                                      12
                                      13
                                                                 33
                                                                             24.3
                                      14
                                                                 33
                                                                             24.3
                                      10            4 4 4 4     20           14.8
                                      16            4           49            36
      LIFTING SLING FITTINGS
                                      19            5           68            50
                                      22            5           107           79
                                      26            5           147          108
                                      30            6           212          156
                                      34            6           296          218
                                      40            6           363          268
                                Table 2, Wire rope clips generally to EN 13411-5 Type A, required number and torque value
                                The efficiency of a wire rope termination made with wire rope clips depends on the correct placement of
                                the clips on the rope and on correct fitting and tightening of the clips. With inadequately tightened nuts
                                or with an insufficient number of wire rope clips the rope end may slide through the clips during use.
                                The fitting of the clips on the ropes may be affected by various circumstances, such as:
                                •  the nut may be tight on the thread, yet not tight against the bridge;
                                •  contamination of the thread by dirt, oil or corrosion products, which may prevent correct tightening
                                  of the nut.
                                Forged wire rope clips provide greater bearing surface and more consistent strength than malleable cast
                                iron clips.
   3 .1
                                Suitable applications of wire rope clips to EN 13411-5 standards include suspending static loads and single
                                use lifting operations which have been assessed by a competent person taking into account appropriate
                                safety factors.
                                Wire rope clips should not be used in following applications:
                                •  hoist ropes in mines;
                                •  rope drives for cranes in steel works and rolling mills;
                                •  permanent fastening of ropes in other rope drives;
                                •  rope terminations for load suspension devices in the operation of lifting appliances, except in the case
                                  of lifting tackles where these are produced for a special application and used only once.
                                Wire rope clips must be regularly inspected in accordance with the safety standards given in the country
                                of use. This is required because the products in use may be affected by wear, misuse, overloading etc. which
                                may lead to deformation and alteration of the material structure. Inspection should take place at least every
                                six months (follow the local rules in the country of use) and more frequently when the products are used in
                                severe operating conditions.




























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