221 Series are double needle, flat bed heavy duty sewing machines. Presser foot lifting height up to 20 mm. The triple feeding system which includes needle feeding, feed dog feeding and presser foot feeding give material feeding force strong stability.  

Thick threads stitching available basing on two over sized vertical hooks apply. Pneumatic presser foot lifter and back tack device could be attached. Different width of needle gauge could be changed in this model and when removing one needle.

The machine can be operated as a single needle machine. They are ideal machines for processing leather products, upholstery and technical textiles with working space of 508×153 mm and 762×153 mm.