The SIRUBA DL720G is a high-speed, single-needle industrial lockstitch sewing machine featuring automatic thread trimming and needle positioning. Its mechatronic design and integrated Direct Drive servo motor provide responsive operation, quiet performance and energy efficiency.
Available in two configurations, the BM1 version is designed for medium-weight fabrics, while the BH1 version is suitable for medium-heavy and heavy materials. Both models offer convenient stitch-length adjustment, a stitch-compensation function and LED sewing-area lighting.
Key Features
Single-needle, single-thread industrial lockstitch
Automatic thread trimming
Automatic needle positioning
Integrated Direct Drive servo motor
Energy-efficient and quiet operation
LED sewing-area lighting
Convenient stitch-length adjustment knob
Stitch-compensation function
Cooling fan integrated into the handwheel
Suitable for professional garment manufacturing
Technical Specifications
BM1 – Medium Materials
Maximum sewing speed: 4,500 stitches/min
Maximum stitch length: 5 mm
Needle bar stroke: 15.5 mm
Needle system: DB×1, size #11–#14
BH1 – Heavy Materials
Maximum sewing speed: 4,000 stitches/min
Maximum stitch length: 5 mm
Needle bar stroke: 18 mm
Needle system: DB×1, size #21





































