Features: 1) High pile non-stop delivery 2) Photo-electric detector for double sheet, overshoot sheet and front alignment sheet control 3) Water-circulated dampening system 4) Computer-calculated inking unit 5) Controlled by touch screen, man-machine conversation 6) Movement controlled by pneumatic components or motor Main specifications: Model BT-440 four colors, BT-540 five colors, BT-640 six colors and 6P640 with six colors printing on both sides of the sheet in one pass offset presses are manufactured by our Japanese company Akiyama International.