The head assembly incorporates oil-free thread take-up levers and needle bars, eliminating fabriccontamination from oil stains; upper thread tension is electromagnetically controlled, enablingautomatic adjustment according to material thickness variations.
RB-1978-D4 RB-1978-D4-D4/H 1
1
DBX1 11-18# DBX1 11-18# 2 2 0-5 0-5 6-13 6-13 ● ● ● ● ● ● ● ● ● ○ ○ ● 5000 5000 630X290X580 630X290X580 48/50 48/50