Sheet to Sheet Warp Trying Machine is designed to tie almost all materials and yarn wool, cotton, silk, filament linen or synthetic- worsted or woollen yarn, single or twisted broad or narrow fabric looms. The Warp Trying Machine requires 220/230-AC/DC voltage to operate efficiently. The Warp Trying Machine is designed with a tying speed of minimum 60 knots to maximum 600 knots depending on the type and condition of warps. Sheet to Sheet Warp Trying Machine functions using 0.65 Amp. Current in a speed range of 7000 RPM [on. Full load].