The device in the image is a portable bag closer, an industrial sewing machine used to seal heavy-duty sacks.
Key Features
Purpose: Designed to close filled bags made of multi-wall paper, woven polypropylene, burlap, cotton, and plastic.
Stitch Type: Typically creates a single-thread chain stitch for a secure, easy-to-open seal.
Portability: This model is handheld and lightweight, often used on-site for packaging grains, fertilizers, or chemicals.
Power: Many modern versions are rechargeable and feature high-power motors (around 210W). [1, 2, 3, 4]