Attributes

Brand	-
Category	Hardware & Tools / Sewing & Embroidery Machines
Origin	-
Brand	Shuangniu
Power Source	Rechargeable Lithium Battery / Plug-in
Material	ABS Plastic and Stainless Steel Needle
Applicable Bag Type	Woven, Cotton, and Multi-layer Paper Bags
Stitch Type	Chain Stitch
Weight	1.2 kg (approx. 2.6 lbs)
Battery Capacity	2000mAh
Charging Time	3-4 Hours
Operation Mode	Handheld Portable
Package Includes	Machine, Charger, Needles, Thread Spool, Wrench, Oil Bottle

6 reviews

Anonymous

Mar 31, 2026

Rating: 4/5

Great value, minor learning curve

Works well once you get the tension adjusted correctly. It took me a few tries to stop the thread from bunching up, but after watching a quick tutorial, it runs smoothly. Much cheaper than industrial models.

Anonymous

Mar 29, 2026

Rating: 5/5

Perfect for our grain storage needs

We use this daily to seal large sacks of rice and corn feed. The battery lasts through about 40 bags on a single charge, which is impressive for such a compact unit. The chain stitch is tight and secure.

Anonymous

Mar 27, 2026

Rating: 4/5

Solid build quality

The metal components feel durable, and the plastic housing is sturdy. I appreciate that it comes with extra needles and oil. Just remember to oil the mechanism regularly to keep it running smoothly.

Anonymous

Mar 25, 2026

Rating: 5/5

Lightweight and easy to carry

I move around my warehouse frequently, so the handheld design is a lifesaver. It's light enough to hold with one hand while guiding the bag with the other. The lithium battery charges quickly too.

Anonymous

Mar 07, 2026

Rating: 5/5

Reliable for coffee bean sacks

We seal our green coffee bean imports with this machine. The stitch is consistent, and the portable nature means we can seal bags right off the truck without dragging them to a stationary machine.

Anonymous

Mar 01, 2026

Rating: 3/5

Good for thin to medium bags

It handles standard woven polypropylene bags very well. However, I found it struggles slightly with very thick, multi-layer paper bags unless you feed them slowly. Still, for the price, it's a solid tool.

5 FAQ

Q: Is the plug-in model included or is it battery only?

A: This specific listing offers a dual-mode capability. It operates primarily on the rechargeable lithium battery but can also be used while plugged in via the included charger adapter if the battery runs low during heavy use.

Q: What type of stitch does this produce?

A: The machine produces a single-thread chain stitch. This type of stitch is strong yet easy to unravel by pulling the loose end when you need to open the bag.

Q: Can this machine sew through thick jute bags?

A: Yes, the Shuangniu sealer is designed to handle woven bags, including jute and burlap, provided the thickness does not exceed the needle's clearance limit. For very thick layers, please feed the material slowly.

Q: How long does the battery last on a full charge?

A: Under normal operating conditions, the 2000mAh lithium battery can seal approximately 30 to 50 standard-sized bags before needing a recharge. Actual performance may vary based on bag thickness.

Q: Does it come with thread and needles?

A: Yes, the package includes one spool of high-strength thread, a set of spare needles, and the necessary tools for installation and maintenance.

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