Dd center latch elevators The dd type elevators are hoisting tools for handling 90â°shoulder drill pipe, casing, tubing and drill collar in oil and gas field.The elevators are designed and manufactured according to api spec 8c-specification for drilling and production hoisting equipment. Technical specification: Main technical parameters: ModelSize (in)Rated capacity (short tons) Drill pipeCasingTubing Dd-1002.3/8-5.1/24.1/2-5.1/22.3/8-4.1/2150 Dd-2502.3/8-5.1/24.1/2-5.1/22.3/8-4.1/2250 Dd-3502.3/8-5.1/24.1/2-5.1/22.3/8-4.1/2350
