The DDZ type drill pipe elevator is a wellhead tool in the drilling and repairing of oil or gas well. It is easy and safe for handling 18-dregrees drill pipe, and of great advantage to prolong life of self-seal head of blowout presenter. It is designed according to API Spec 8A/8c for Drilling and Production Hoisting Equipment. It was design verification tested at more than two times the max. test load, and underwent ex-factory test at one and a half times the rated load.
| Model | Size(in) | Rated Capacity (short tons) | Remark |
| DDZ -100 | 2 3/8"-5" | 100 | MG |
| DDZ -150 | 2 3/8-5 1/2" | 150 | RG |
| DDZ -250 | 2 3/8"-51/2" | 250 | MGG |
| DDZ -350 | 3 1/2"-57/8 | 350 | GG |
| DDZ -350TD | 3 1/2"-5 7/8" | 350 | FOR TOP DRIVE |
| DDZ -500 | 3 1/2"-6 5/8" | 500 | HGG |
| DDZ -500TD | 3 1/2"-6 5/8" | 500 | For Top Drive |
| DDZ -750 | 4-6 5/8" | 750 | For Top Drive |