The shoulder and side seams should have fullness in certain seam areas (rearward shoulder seam and the upper part of the side seam) and should be sewn even at other parts. To meet these requirements the PFAFF 3827 provides a fully developed workplace which precisely fits the required working processes and quality demands. Furthermore it serves as an important manufacturing resource which make little demands on the user and requiring little training. The PFAFF 3822 is equipped with the ultra high-speed sewing unit PFAFF 487 with differential feedThe floating foot supports the even distribution of fullness and guarantees smooth seamsEdge guide with automatic seam width adjustment when changing from the side to the shoulder seams (on sub-class -434)Semi-automatic operating cycles (adjustment of the edge guide, seam end using sensor, mirror-image seams), without complicated seam programming Absolutely identical shoulder seams, due to automatic mirror image seams In case of need it can al so be used for closing seamsSeparately adjustable pressure on the presser foot and on the vibrating presser footEasy handling and short training times due to part automationFullnesses can be defined precisely and recalledAbsolute identical shoulder seams due to seam reflectionAlso applicable to usual seams Closed side seams and shoulder seams Needle system : 134 KK Needle size : 80-100 Nm Max. sewing speeds : 4.800 s.p.m Max. stitch length : 4. 5 mm Top feed stroke : 2. 0 mm Stitch type: 301 (Lockstitch) Fabric clearance : max. 7. 0 mm Clear workspace : 260 x 130 mm Connection voltage: single-phase a.c.