Industrial Overlock Sewing Machines
3, 4 and 5 thread overlock machines for clean edge finishing — the standard companion to every lockstitch on a production line.
An overlock machine (also called a serger) trims and finishes the fabric edge in a single pass, preventing fraying and producing the neat, professional seams seen on t-shirts, sportswear and most knitwear.
On a production line it works alongside a lockstitch machine: the lockstitch sews the main seams while the overlock finishes edges and joins stretch panels. If you are adding knitwear to your range, this is the machine you add first.
Every overlock machine on this page runs on single-phase 220V and ships as a complete set with table and motor. Choose 4-thread for general garment work, or 5-thread when your seams need extra strength.
Models in this category
3-Thread Overlock Sewing Machine
Compact 3-thread overlock machine for small tailor shops and children's wear. Stable demand, low competition. FOB price on request.
5-Thread Overlock Sewing Machine
5-thread overlock machine combining overlock and safety stitch for strong, secure seams on denim and heavy woven fabrics. FOB price on request.
747D 4-Thread Overlock Sewing Machine
High-speed 4-thread overlock machine with differential feed — the standard edge-finishing companion to the lockstitch. FOB price on request.
Flatlock Sewing Machine
Flatlock (coverstitch) machine for flat, professional hems and decorative stitching on knitwear and underwear. FOB price on request.
Which Workshops Use These Machines?
How to Choose a Overlock Sewing Machines for Your Workshop
Thread count — 3, 4 or 5?
3-thread machines are light finishers for small workshops and children's wear. 4-thread is the industry standard for woven and knit garments. 5-thread adds a safety stitch for stronger seams on denim and heavy cotton.
Differential feed — do I need it?
Differential feed controls how the fabric is gathered or stretched. It is essential for knitwear and stretch fabric, where it prevents puckering and wavy seams.
Knit or woven fabric?
Overlock machines handle both, but the settings and thread differ. If most of your work is t-shirts and sportswear, a 4-thread machine with differential feed is the right starting point.
Maintenance and knife wear
Overlock machines cut as they sew, so they collect lint fast. Keep the looper area clean and replace dull knives and worn needles on schedule to keep seams crisp.
Frequently Asked Questions
Does the price include the table and motor?+
Yes — every overlock machine ships as a complete set with table, stand and motor.
What fabric can an overlock machine sew?+
Light and medium knit and woven fabrics. For heavy denim seams, choose a 5-thread machine.
What voltage do your machines use?+
220V / 50Hz single phase, matching the mains supply in most export markets.
Do you supply spare parts for overlock machines?+
Yes — loopers, knives, needles and feed dogs are kept in stock.
What is the minimum order quantity?+
1 unit. You can start with a single overlock machine.
Tell us your fabric and budget — we'll recommend the right model
Reply within 12 hours. Prices quoted FOB Ningbo.