WNS Pittsburgh Lock Formers / Rollformers are principally used for joining sheet metal on duct sections, available in 16swg (1.6mm) and 20swg (1.0mm) capacities. WNS Button Punch Snap Lock Rollformers are available in 20swg (1.0mm) capacity. This machine produces a flange and punched louvers and the duct is 'snapped' together. WNS Flat 'S' Cleat Rollformers have drive cleat rolls fitted inboard. Duct is joined longitudinally in conjunction with drive cleat and plain seam.
Manufactured to the original & traditional Lockformer design ensures industry standard sized joints and locks. All shafts, forming/auxiliary rolls, gears and guides are hardened and needle bearings are fitted throughout.