◆   Product introduction   ◆

➣Mast is the main part of the drilling rig. The functions of the mast include placing crown block，hanging traveling system and drilling tools; bear the loads of tripping, casing and handling downhole troubles during drilling operations.

➣The mast has various structural types such as swing-up mast, hydraulic cylinder lift type, jack up mast, K type, tower type, etc.

➣Product welding complying AWS D1.1

➣Product design, manufacture and inspection complying API 4F;

➣Product specification level can meet PSL1 and PSL2

➣Force analysis using professional structural analysis software

➣Ambient temperature -45℃～+55℃.