Ralson

It is a single needle machine making three thread chain stitches for overlock.
This machine is mainly used for trimming and over edgings.
This machine can be used manually with a foot accessory or can be operated easily with a motor.

Motion of thread take up lever	Three thread chain stitch
Shuttle/Hook	Looper Mechanism
Stitch Length	6-30 per inch or 5 MM / 5 SPI
Speed	Auto 3200 Stitches per minute