Suitable for sewing knee pads, waist supports, elbow pads, helmet liners, car cushions, seat covers, and other thick or irregular-shaped items. Strong climbing ability and stable feeding.

• 三同步厚料机（DJ-4420D） / Triple-feed heavy-duty machine

• 综合送筒型车（DJ-8B） / Compound feed cylinder machine

• 双同步厚料平缝机（DJ-0302） / Double-feed heavy-duty lockstitch machine