A power tong, adapted to apply torque to a lower tubular relative to a upper tubular, to thus connect and disconnect an upper threaded end of the lower tubular and a lower threaded end of the upper tubular, the lower tubular and upper tubular being supported on a main axis of the power tong, the power tong comprising: - a lower tong, the lower tong comprising a lower tong frame defining a central tubular passage, multiple grippers, each gripper having a linear working axis, said working axis extending perpendicular to the main axis, which grippers are distributed around the tubular passage for gripping the lower tubular in the tubular passage, and a radial opening that provides lateral access to the tubular passage for a tubular; - an upper tong, the upper tong comprising an upper tong frame defining a central tubular passage, multiple grippers, each gripper having a linear working axis, said working axis extending perpendicular to the main axis, which grippers are distributed around the tubular passage for gripping the upper tubular in the tubular passage, and a radial opening that provides lateral access to the tubular passage; - a support frame, the support frame supporting the lower tong and/or the upper tong with the respective tubular passage aligned on the main axis, the upper tong being located above the lower tong; and - a torque actuator, the torque actuator comprising a first hydraulic drive and a second hydraulic drive, for rotating the upper tong relative to the lower tong and about the main axis, to connect or disconnect the lower tubular gripped by the lower tong and the upper tubular gripped by the upper tong, wherein the first hydraulic drive and the second hydraulic drive each have a housing and a drive shaft extending from that housing, wherein the first hydraulic drive and the second hydraulic drive are mounted on the lower tong frame or are mounted on the upper tong frame, each with the drive shaft parallel to the main axis, characterized in that each drive shaft supports a guide wheel for cooperating with a guide track (20,20a,20b) and a pinion for cooperating with a rack (22,22a,22b), which guide wheel and pinion are concentrically mounted on the drive shaft of the hydraulic drive (14,15), and in that respectively the upper tong or the lower tong comprises the guide track (20,20a,20b) receiving the guide wheel and the rack (22,22a,22b) cooperating with the pinion of the first hydraulic drive and the second hydraulic drive, to enable the hydraulic drives (14,15) to rotate and guide the upper tong relative to the lower tong. - a lower tong, the lower tong comprising a lower tong frame defining a central tubular passage, multiple grippers, each gripper having a linear working axis, said working axis extending perpendicular to the main axis, which grippers are distributed around the tubular passage for gripping the lower tubular in the tubular passage, and a radial opening that provides lateral access to the tubular passage for a tubular; - an upper tong, the upper tong comprising an upper tong frame defining a central tubular passage, multiple grippers, each gripper having a linear working axis, said working axis extending perpendicular to the main axis, which grippers are distributed around the tubular passage for gripping the upper tubular in the tubular passage, and a radial opening that provides lateral access to the tubular passage; - a support frame, the support frame supporting the lower tong and/or the upper tong with the respective tubular passage aligned on the main axis, the upper tong being located above the lower tong; and - a torque actuator, the torque actuator comprising a first hydraulic drive and a second hydraulic drive, for rotating the upper tong relative to the lower tong and about the main axis, to connect or disconnect the lower tubular gripped by the lower tong and the upper tubular gripped by the upper tong, wherein the first hydraulic drive and the second hydraulic drive each have a housing and a drive shaft extending from that housing, wherein the first hydraulic drive and the second hydraulic drive are mounted on the lower tong frame or are mounted on the upper tong frame, each with the drive shaft parallel to the main axis, characterized in that each drive shaft supports a guide wheel for cooperating with a guide track (20,20a,20b) and a pinion for cooperating with a rack (22,22a,22b), which guide wheel and pinion are concentrically mounted on the drive shaft of the hydraulic drive (14,15), and in that respectively the upper tong or the lower tong comprises the guide track (20,20a,20b) receiving the guide wheel and the rack (22,22a,22b) cooperating with the pinion of the first hydraulic drive and the second hydraulic drive, to enable the hydraulic drives (14,15) to rotate and guide the upper tong relative to the lower tong.