Qian Feng Manufacturing High-Speed Ultrasonic Woven Bag Cutter and Sealer Machine
Product Details
| Customization: | Available |
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| After-sales Service: | Online Support with Lifetime After-Sales Service |
| Warranty: | 1 Year |
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Basic Info.
- Model NO.
- QF-QFJ-850
- Condition
- New
- Certification
- ISO9001
- Application Place
- Factory
- Applicable Thickness
- Middle Thickness Material
- Drive
- Electric
- Thread Number
- Double Threads
- Needle Number
- Single Needle
- Stitch Type
- Chain Type
- Product Name
- Cutting and Sewing Machine
- Max. Diameter of Unwinding Roll
- 1200mm
- Max. Cutting Length
- 1300mm
- Folding Width
- 20-30mm
- Total Power
- 3kw
- Voltage
- 380V
- Speed
- High
- Max. Cutting Width
- 750mm
- Cutting Precision
- ±1.5mm
- Gross Weight
- 2800kg
- Power
- 6kw
- Transport Package
- Seaworthy Packing
- Specification
- Customized
- Trademark
- Qianfeng
- Origin
- China
- HS Code
- 8477800000
- Production Capacity
- 200sets Per Year
Packaging & Delivery
- Package Size
- 500.00cm * 400.00cm * 500.00cm
- Package Gross Weight
- 450.000kg
Product Description



1. Fully automated cutting with integrated bottom sewing - processes both laminated and non-laminated bags with 50% labor reduction versus manual operations.
2. Precision-length control: User-friendly touchscreen and servo motor system maintains ±1.5mm accuracy on every bag.
3. Switch seamlessly between cold-cutting (laminated bags) and hot-cutting (non-laminated) in under 1 minute.
4. Hot-cutting seals edges without adhesion for smooth bag opening, while cold cutting delivers clean, fray-resistant edges with zero heat distortion - ensuring consistent performance in both modes.
5. Automatic deviation correction system - ensures precise production, reduces material waste, and enhances overall efficiency and product quality.
6. Automatic counting and stacking for seamless bag discharge.
7. Electric hoist-fed fabric roll system for effortless operation and labor reduction.
8. Handheld remote allows flexible control near the machine without touching the control panel.
2. Precision-length control: User-friendly touchscreen and servo motor system maintains ±1.5mm accuracy on every bag.
3. Switch seamlessly between cold-cutting (laminated bags) and hot-cutting (non-laminated) in under 1 minute.
4. Hot-cutting seals edges without adhesion for smooth bag opening, while cold cutting delivers clean, fray-resistant edges with zero heat distortion - ensuring consistent performance in both modes.
5. Automatic deviation correction system - ensures precise production, reduces material waste, and enhances overall efficiency and product quality.
6. Automatic counting and stacking for seamless bag discharge.
7. Electric hoist-fed fabric roll system for effortless operation and labor reduction.
8. Handheld remote allows flexible control near the machine without touching the control panel.
| Product Name | Qian Feng Manufacturing High-Speed Ultrasonic Woven Bag Cutter and Sealer Machine |
| Model No. | QF-QFJ-850 |
| Max. Diameter of Unwinding Roll | 1200mm |
| Max. Cutting Width | 750mm |
| Max. Cutting length | 1300mm |
| Cutting Accuracy | ±1.5mm |
| Folding Width | 20-30mm |
| Production Capacity | 30-50pcs/min |
| Running Power | 6kw |
| Cutting Type | Hot Cutting or Cold Cutting or both |
| Sewing Machine Type | Single Stitch (Double Stitch for option) |
| Stitch Pitch | 7-12mm |
| Weight | 2600kg approx. |
| Installation Dimensions (LxWxH) | 6000x6500x1500mm |

Wenzhou Qianfeng Machinery Co.,Ltd.is a wholly-owned subsidiary of Wenzhou Qianfeng Technology Co.,Ltd.(established in 1997),focusing on expanding the international market.We are committed to providing themost practical woven bag production equipment and solutions to customers around the world.Main Products
Our company provides smart solutions for PP/PE woven bag production with main products including wovenbag cylinder-free reel-to-reel printing machine,woven bag automatic cutting and sewing machine with option-al functions for liner-insertion,top-hemming,bottom edge-binding,printing,perforation &handle punching,top-folding(valve woven bag)and other related machines.These equipments effectively reduce labor intensi-ty,lower production costs,improve product quality,and enhance production efficiency,creating greater eco-nomic benefits for your business.
Market &Service
With 28 years of expertise as a national high-tech enterprise,we deliver innovative woven bag manufacturingequipment backed by40+patents and ISO-certified quality.Our smart solutions are trusted by2,000+satisfiedclients worldwide,including markets across Southeast Asia,the Middle East,Central Asia,Russia,and Africa.





Q1:What types of machines does Qianfeng Machinery produce?
We specialize in manufacturing multifunctional automatic woven bag cutting andsewing machines and woven bag printing machines.Our equipment is widelyused for producing PP/PE woven sacks in industries like agriculture,food,chemi-cals,and construction.
Q2:What is your production capacity and lead time?
Production Capacity:We produce 400+machines annually.
Standard Delivery Time:around 30 days after deposit(depending on model andcustomization).
Expedited Options:Available for urgent needs (contact us for details).
Q3:Can your machines handle customized bag sizes/designs?
Yes!Our machines can be customized for:Bag dimensions (width/length adjustments)Printing colors (1-6 colors,flexographic)
Q4:What support do you provide after purchase?
Free remote installation guidance (or onsite engineer dispatch)One-year warranty+lifelong technical supportLifelong spare parts supply
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