Products Descriptions
Looking for a high-performance bag closing head compatible with automatic heat sealing lines? The DS-7A high speed roller feed bag closing machine (equal to Newlong DS-7A) is a 1-needle, 2-thread chainstitch machine engineered for seamless integration into automated packaging workflows. Durable bag closer for paper, PP and PE sacks across food, feed, chemical and port industries.
Core Features & Main Advantages
1. Continuous Roller Feed for Stable Sealing
- Continuous top and bottom roller feed system: Ensures slip-free material handling,delivering uniform stitches on various bag materials (paper, PP, PE).
- Ideal for automated lines: Works seamlessly with automatic heat sealing machines (e.g., KS-13 series), eliminating manual bag positioning and boosting production efficiency.
2. High-Speed Performance & Consistent Stitch Quality
- Regular sewing speed of 1600 SPM: Balances speed and reliability, supporting medium to high volume production without compromising seam strength.
- Fixed stitch length of 7.7mm: Meets international packaging standards, ensuring consistent seam for secure,leak-proof closures during storage and transportation.
- Single-needle, two-thread #401 chain stitch: Delivers flexible, tear-resistant seams that adapt to bag movement and stacking pressure.
3. Sight Feed Oiler Lubrication – Simple & Efficient
- Sight feed oiler system: Provides precise, visible lubrication to critical moving parts, reducing wear and extending machine life while minimizing oil waste.
- Easy maintenance: Transparent oil reservoir allows quick oil level checks, simplifying routine upkeep and reducing downtime.
Ideal Applications & Users
1. Suitable Bag Materials
- Paper bags (kraft, multi-wall)
- PP woven bags (coated/uncoated)
- PE bags (polyethylene sacks for industrial use)
2. Main Applicated Industries
- Food Processing: Grains, flour, sugar, pet food, snack ingredients
- Animal Feed: Pelleted feed, bulk feed ingredients
- Chemicals: Granular chemicals, plastic pellets, additives
- Port & Logistics: Bulk material packaging for export/import
- General Manufacturing: Industrial bulk component packaging
Why Choose the DS-7A for Your Packaging
The DS-7A automatic heat sealing line bag closing machine isn't just a bag closing machine–it's a reliable component that enhances your automated packaging line:
- Seamless Line Integration: Designed for assembly on automatic heat sealing machines (KS-13 series), supporting end-to-end packaging automation.
- Cost-Effective Efficiency: No built-in cutter reduces upfront costs, while the sight feed oiler minimizes maintenance and operational expenses.
- Durable for Industrial Use: Robust roller feed and precision lubrication system withstand continuous operation in dusty, high-intensity environments.
Don't let inefficient bag closing slow down your automated production. The DS-7A automatic packaging line bag closing head delivers the reliability, compatibility, and cost savings you need to compete in international markets. Contact our team today to request a personalized quote, schedule a virtual demo, or discuss how the DS-7A can optimize your packaging workflow.
Applications
Woven Bag
Fertilizer Bags
Rice Bags
Products Specifications
|
Model |
DS-7A |
|
Number Of Needle |
One needle |
|
Feeding Structure |
Continuous feeding(top roller feed) |
|
Max. Sewing Speed |
1600SPM |
|
Max. Stitch Length |
7.7mm(fixed) |
|
Cutter Type |
Mechanical thread cutter |
|
Needle(Standard) |
DN-H29 #26 |
|
Stitch Type |
401 |
|
Lubrication |
Automatic |
Products FAQ
1. What stitch types do PACKSTAR bag closing machines adopt for bag sealing?
A: Our bag closing machines mainly use durable chain stitch, including single-thread, double-thread and four-thread styles. The chain stitch features high tensile strength, not easy to unravel even under heavy load, perfectly suited for long-term stacking and transportation of filled industrial bags.
2. What kinds of packaging bags can PACKSTAR full-series bag closing machines sew?
A: All models adapt to PP woven bags, plastic sacks, paper bags, jute bags and composite lined bags. High-speed and double/four-thread models can handle thickened multi-layer bags, while standard single needle models meet the sealing demands of conventional light and medium packaging bags.
3. How to improve the overall efficiency of the bag closing production line?
A: Match high-speed bag closing machines with synchronous-speed bag infeed devices. Regularly maintain the equipment to reduce downtime. Set reasonable stitch length and running speed according to bag materials to avoid repeated rework caused by unqualified sealing.
4. How about the packaging and transportation of that machine?
A: All the machines are packed in standard export cartons or wooden packaging boxes to prevent damage during transportation.
5. What payment terms do you accept?
A: We accept T/T,Paypal,Western union ect.
why choose us
our Company
PACKSTAR is a leading professional manufacturer of bag sewing machines, bag closing machines and supporting packaging equipment. Our products are trusted by clients in over 30 countries, serving food, chemical, feed, grain, fertilizer and packaging industries.
Meanwhile, we offer one-stop services including pre-sales technical consultation, free solution design, on-site installation guidance, long-term after-sales maintenance & spare parts supply.
Welcome to email or call us get the professional sewing solution and quotation.
Our address
No.25,Hi-Tech Zone,Xi'an,710065,China
Phone Number
86-29-81870126,81870128
dekoco@vip.163.com,sales@chinapackstar.com
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