One of the members of the Cutter & Tailor forum posted a link to his company's website, a modern suit factory in Turkey, which had this video as well as some photos of their factory. It might be interesting for those who have never seen a modular engineered suit factory at work (and this is a well-equipped one), but since most operation may look unfamiliar, I'll give a play-by-play below.
1.Pick stitch machine
2. Lining pockets. The operator places the lining front on the machine, an arm comes forward on which she places a flat piece of lining and a stay, which the machine folds into jets, stitches and cuts the pocket all in one shot. Homesewers will scream when they see this.
3.Flap jig. Specially-shaped jig molds clamp two pieces of cloth together in order to give fullness to the outer piece, then they are sewn and cut in one shot.
4. Flap press. The flaps are turned and stretched over a form which is then inserted into the press.
5. Welt tacking. The breast welt is zig-zagged in place.
6. Side seam. This is the side seam with a side vent being closed.
7. Shoulder seam. A top-feed machine is programmed to feed the fullness onto the shoulder automatically.
8. Sleeve setting. Again, home sewers will scream. A computerized fullness-feeding machine to set sleeves with the sleeve head already attached. The machine can be fully automated for the amount of fullness in the various parts of the sleeve cap or the operator can control the fullness with a foot pedal and knee lever.
9. Sleeve buttons. Self explanatory.
10. Joining sleeve head. The elbow seam has been joined and the sleeve head is attached before closing the inseam. Most machines of this sort will also shirr (full or ease) the sleeve cap at the same time, making setting the sleeve easier.
11. Buttonholes. Sew and cut buttonholes.
12. Shoulder press
13. Sleeve outseam (elbow seam) press
14. Front panel press. This machine has a shape for the chest and shoulder which is not visible from this angle. The suit designer usually designs the shape of the buck with the press manufacturer.
15. Lapel press
16. Touch up. Don't try this at home, kids.
17. Final examination.