J P developed Conversion lines for producing bottom folded and sewingn woven sack made from roll of tubular woven PP/HDPE fabric. JPBCL - 850 model from J P EXTRUSIONTECH LIMITED is a high speed machine suitable for conventional bag application and is designed for cutting the tubular fabric, bottom folding, sewing and stacking. This new generation machine with servo and PLC controls is designed for fabric width upto 850 mm and cut lenght up to 1400 mm with speeds upto 30 to 40 bags/min. depending upon material, width of the fabric, length of bag, number of folds, stitches etc. This bag making machine is most appropriate for working with un-laminated fabric but can also be converted to use laminated fabric.