Product description DDZ series elevators are off-type taper Elevators, for hanging holding taper drill pipe, drill and so on. Load from 100 tons to 750 tons. Fastening diameter from 23/8 to 65/8; Elevators by API Spec 8C "Drilling and Production Hoisting Equipment" design and manufacturing. Specifications Model retaining diameters (in) rated load (short tons) Remarks DDZ □ -100 23 / 8-5 100 MG DDZ □ -150 23 / 8-51 / 2 150 RG DDZ □ -250 23 / 8-51 / 2 250 MGG DDZ □ -350 31 / 2-57 / 8 350 GG DDZ □ -350TD 31 / 2-57 / 8 350 overall / Lined DDZ □ -500 31 / 2-65 / 8 500 HGG DDZ □ -500TD 31 / 2-65 / 8500 overall / Lined DDZ □ -750 4-65 / 8 750?