Kalsi machinery co provides kmc 7000, a semi-automatic thread book sewing machine. It is an ideal machine for section sewing of hardbound and paperback books. The machine is completely risk free as signatures are put on a moving chain. The variable speed of the machine can be monitored with a knob. Section sewing with lining is an additional feature of the machine that strengthens hardbound books. One can get double output on this machine in comparison to an ordinary machine. Model kmc 7000 can be used for sewing books in the range of largest size- 425 x 225 mm [16.5" x 9"]and smallest size- 150 x 100 mm [6" x 4"]. It operates with the speed - 110 to 150 sections per minute and motor - 0.75 kw [1 hp], 1400 rpm with variable speed controller.