Sash assembly centre for installing hardware on PVC. Ergonomic fixing of hardware in a very short time Sash assembly table for measuring and cutting to length of hardware components. Optimisation of sash processing by carrying out various work tasks at a single workstation. Assembly table can be tilted pneumatically The sash, measurement and centring units can be moved pneumatically. Gear cropper with stops for a centred and consistent handle position. Two stop blocks for different sash widths. Mobile screwing unit with pneumatic height adjustment. Manual insertion funnel for second screw length Automatic depth shutoff Screw feed unit. Table supporting surface with plastic slide bars.