Description Overview 30 used Alucolor tricot warp beams, 21 x 21 in (533 x 533 mm) For tricot warp knitting machines Offered separately from the machine Specifications Bore: 152 mm (6.0 in) Outside diameter: 530 mm (20.9 in) Inner working width between the flanges: 510 mm (20.1 in) Weight each: 30.6 kg (67 lb)