Firmac has been designing and producing high quality duct forming machinery for almost 30 years. Our wide range of machinery comes with a full range of flanging options which include flange profiles that meet both European and American specifications (DW 144/ SMACNA). We build machines to the clients’ specification. Size and shape of both the integral and slide on flange are entirely the clients’ decision. Our popular CGF range includes CGF1, CGF2 and CGF3.