Features: 1) The machine is specially used to stretch screen in screen-printing 2) The pneumatic cylinder can supply the same air pressure to each clamps through a close air circulate line 3) The machine can supply different tensility. So it is specially fit for stretching multi- color screen plate and high-precision PCB 4) The machine is made up of 12-18 sets of pneumatic stretching mechanisms and one air-distributing device. The standard equipment number is 12 sets 5) The machine can stretch a screen plate frame of 1000 x 1000mm Specifications: 1) Max. pneumatic stretch length: 87mm 2) Screen-clamp width: 250mm 3) Max. air-pressure: 8kgf/cm2 4) Pneumatic cylinder diameter: Ø40mm 5) Pneumatic clamp weight: 6kg/unit