Full-Automatic Hot/Cold Cutting-Sleeving-Sewing-Ring Mouth Machine
Ideal for cement bags, fertilizer bags, feed bags, paper-plastic laminated bags with inner bag and ring mouth. HAOSEN integrates top Chinese bag-making machinery factories — one-stop delivery, patent-verified, full after-sales backup.
| Metric | Value |
| Machine Functions | Hot/Cold Cutting + Sleeving + Sewing + Ring Mouth (4-in-1) |
| Inner Bag Length Overhang | 30 – 110 mm |
| Inner Bag Thickness | 0.015 – 0.05 mm |
| Double Opening Function | Standard (guarantees opening rate) |
| AI Vision Detection | Optional (hole detection) |
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Overview & Technical Specifications
01
This HS-QTFQ750 full-automatic hot/cold cutting-sleeving-sewing-ring mouth machine integrates four key bag-making processes into a single production line. Controlled by PLC with touchscreen operation and servo drive, it handles hot or cold cutting (one-key conversion), automatic double-side bag mouth opening, EPC automatic deviation correction, high-precision cutting, PE inner bag automatic sleeving, hot sealing bottom, automatic outer bag sewing (with optional inner-outer bag connection), automatic ring mouth forming (ultrasonic or heating options), and automatic bag stacking with counting. Features double opening function for guaranteed opening rate. Optional AI vision detection system for hole detection. Suitable for ordinary inner bags, PE inner bags, paper-plastic inner bags, feed bags, and fertilizer bags. HAOSEN sources this machine from China's top bag-making equipment factories, verified for patent clearance and after-sales capability.
Notes on Suitable Ingredient： Woven bags, laminated woven bags, paper-plastic laminated bags, with PE inner bag.
| Parameter | Specification |
| Basic Information | |
| Model | HS-QTFQ750 |
| Total Power | 18 KW |
| Dimensions | 10000 × 7000 × 1600 mm |
| Weight | 6.8 T |
| Control System | |
| Control | PLC + Touchscreen |
| Drive | Servo drive |
| Cutting System | |
| Cutting Type | Cold knife / Hot knife — One-click conversion |
| Bag Width | 400 – 750 mm |
| Bag Length | 700 – 1200 mm |
| Film Cutting Width | ≤680 mm |
| Cutting Accuracy | ±1 mm |
| Cutting Speed | 30 – 50 pcs/min |
| Edge Control | Automatic EPC |
| Sleeving System | |
| Sleeving Speed | 25 – 40 pcs/min |
| Liner Overhang | 30 – 110 mm |
| Inner Film Thickness | 0.015 – 0.05 mm |
| Ring Mouth System | |
| Ring Mouth Speed | 18 – 22 pcs/min |
| Ring Mouth Options | Ultrasonic / Heating |
| Double Opening | Standard, guarantees opening rate |
| Sewing & Inspection | |
| Heat Sealing | Hot sealing bottom |
| Bottom Sewing | Automatic sewing) |
| Connecting the inner and outer bags | Can be sewn together / Can be left unsewn |
| Inspection | AI Visual Inspection (Optional: Holes Detection) |
| Stacking System | |
| Stacking | Automatic Bag Counting |
| Operators | Single operator |
Key Advantages
02
4-in-1 Integrated Production – Cut, Sleeve, Sew, Ring Mouth: One machine replaces 3-4 separate machines. Eliminates material handling between stations. Saves floor space, reduces labor, increases production speed.
PLC + Touchscreen Control – One-Key Cold/Hot Conversion: Full-automatic PLC control with touchscreen interface. Switch between cold knife and hot knife with one key. Real-time data display, production recording, and parameter setting. Servo drive for precise control.
Cold/Hot Knife One-Key Conversion – Maximum Flexibility: Instant switching between cold knife and hot knife cutting. Cold knife for clean cuts on woven fabric. Hot knife for sealed edges on coated/laminated bags. No downtime for blade changes.
Automatic Double-Side Bag Mouth Opening + Double Opening Function: Automatically opens both sides of the bag mouth after cutting. Double opening function guarantees opening rate. Bags come out ready for filling. Eliminates manual opening step.
Automatic PE Inner Bag Sleeving – Precision Fit: Fully automatic PE bag sleeving system. No manual insertion required. Consistent positioning, reduces waste, improves bag quality.
Ring Mouth with Ultrasonic or Heating Options: Two ring mouth options available — ultrasonic or heating. Ultrasonic for cleaner, stronger rings. Heating for traditional applications. Choose based on your material and quality requirements.
EPC Automatic Deviation Correction – High-Precision Cutting: EPC system automatically corrects fabric deviation during cutting. Ensures straight, accurate cuts. Reduces material waste, improves product consistency.
AI Vision Detection System (Optional) – Guaranteed Yield: Optional artificial intelligence vision detection system. Detects holes and defects in bags in real-time. Automatically rejects defective bags. Efficiently guarantees finished product yield.
Automatic Bottom Sewing – Optional Inner/Outer Bag Connection: Automatic bottom sewing with optional connection between inner and outer bags. Choose to sew together or leave separate. Flexible for different customer requirements.
Automatic Counting & Stacking – Ready for Palletizing: Automatically counts and stacks finished bags. Reduces manual counting errors. Bags come out neatly stacked, ready for packaging or palletizing.
Single Operator – Dramatic Labor Savings: One operator can run the entire machine. Replaces 3-4 operators on traditional separate machines. Significant labor cost reduction.
Wide Application Compatibility: Suitable for ordinary inner bags, PE inner bags, paper-plastic inner bags, feed bags, fertilizer bags. One machine handles multiple bag types.
Heavy-Duty Construction – 6.8 Tons, 18KW Power: Robust construction for 24/7 continuous operation. 6.8 ton weight ensures stability at high speed. 18KW power for reliable performance.
Technical Details & Components
03
| PLC + Touchscreen Control System | Full-automatic control — real-time data display, production recording, parameter setting. One-key cold/hot knife conversion. Servo drive for precise motion control. |
| Cold/Hot Knife Cutting Unit | One-key conversion between cold knife and hot knife. Cold knife for clean cuts on woven fabric. Hot knife for sealed edges on coated/laminated bags. Instant switching, no downtime. |
| Double Opening Function | Guarantees bag mouth opening rate. Automatically opens both sides of the bag mouth after cutting. Bags exit ready for filling. |
| EPC Automatic Deviation Correction | Edge position control system — automatically corrects fabric deviation during cutting. Ensures straight, accurate cuts within ±1mm. Reduces waste by 5-8%. |
| Automatic PE Inner Bag Sleeving System | Fully automatic PE bag feeding, positioning, and insertion. Precise alignment with outer bag. Inner bag overhang adjustable 30-110mm. No manual labor required. |
| Hot Sealing Bottom Unit | Heat seals the bottom of the PE inner bag. Ensures secure closure, prevents leakage. Temperature controlled for different film thicknesses (0.015-0.05mm). |
| Ring Mouth Unit – Ultrasonic Option | Ultrasonic welding for ring mouth formation. Creates clean, strong rings without heat damage to material. Ideal for thinner films and higher quality requirements. |
| Ring Mouth Unit – Heating Option | Traditional heating method for ring mouth formation. Reliable, proven technology. Suitable for standard applications and thicker materials. |
| AI Vision Detection System (Optional) | Artificial intelligence vision inspection — detects holes and defects in bags in real-time. Automatically rejects defective bags. Guarantees finished product yield. |
| Automatic Bottom Sewing Head | High-speed sewing head for outer bag bottom. Optional connection between inner and outer bag (sew together or leave separate). |
| Automatic Stacker with Counter | Finished bags automatically stacked with precise counting. Bags come out neatly stacked, ready for palletizing. Counting accuracy 100%. |
| Heavy-Duty Frame Construction | We assessed 20+ bag-making machine suppliers and selected this reliable source — undisputed patents, confirmed after-sales, factory audited in person. |
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Why HAOSEN?
04
| We assessed 20+ bag-making machine suppliers and selected this reliable source — undisputed patents, confirmed after-sales, factory audited in person. | |
| HAOSEN is your single point of coordination. We align extrusion, circular weaving, lamination, printing, and bag fabrication — a single contact point is responsible for managing five to six facilities. | |
| The entire production line is delivered as one complete set — one inspection, one shipment, one customs clearance. No searching for pieces that went missing. | |
| Our Chinese engineers take charge of installation, commissioning, and operational training. Within 2–4 weeks, your team works independently without our presence. | |
| We maintain spare parts warehouses across India and Southeast Asia — common parts at your door in 3 days; 24/7 remote help is always on call. | |
| From design drawing to full-scale production — full turnkey guarantee, otherwise your money is fully refunded. |
Success Stories & Trust
05
A Vietnamese cement bag manufacturer needed to produce ring mouth cement bags with PE inner bags. Before HAOSEN, they used 4 separate machines requiring 4 operators. Bags often had inconsistent ring mouth quality and occasional holes. HAOSEN installed HS-QTFQ750 with ultrasonic ring mouth and AI vision detection. Now 1 operator runs the entire line. "The AI vision system catches every defective bag. Our customer return rate dropped to zero. The ultrasonic ring mouth is perfect every time," said the factory manager.
-- Southeast Asia Cement Bag Factory (Vietnam)
A Saudi customer needed to produce fertilizer bags with PE inner bags and ring mouth. They had limited floor space and technical expertise. HAOSEN recommended HS-QTFQ750 with heating ring mouth option (preferred for their material). Production started within 65 days. The double opening function guarantees 99% opening rate. "HAOSEN's engineer stayed 3 weeks and trained our team. Now we run 20 hours a day with 95% uptime," said the plant owner.
-- Middle East Fertilizer Bag Plant (Saudi Arabia)
"We were using separate machines for cutting, sleeving, sewing, and ring mouth. The process was slow, required 4 operators, and ring mouth quality was inconsistent. HAOSEN's HS-QTFQ750 changed everything. One machine, one operator, perfect ring mouth every time. The one-key cold/hot conversion lets us switch between bag types in seconds. Best equipment investment we ever made." — Indonesia customer, feed bag manufacturer
Certifications: ✅ CE Certified ✅ AAA Credit Enterprise ✅ 50+ Partner Factories ✅ Export to 30+ Countries
Certifications: ✅ CE Certified ✅ AAA Credit Enterprise ✅ 50+ Partner Factories ✅ Export to 30+ Countries
-- Customer Reviews
Solving Your Pain Points
06
| Customer Pain Point | HAOSEN Solution |
| Pain Point 1: Need 3-4 separate machines — high equipment cost, large floor space, multiple operators | ✅ HAOSEN Solution: 4-in-1 integrated machine — one machine does cut, sleeve, sew, ring mouth. Saves 60% floor space, reduces equipment investment, 1 operator instead of 3-4 |
| Pain Point 2: Switching between cold cut and hot cut requires blade change — downtime, labor | ✅ HAOSEN Solution: One-key cold/hot conversion — instant switching, no downtime, no blade change |
| Pain Point 3: Bag mouth not open consistently — filling line rejects bags, slows production | ✅ HAOSEN Solution: Double opening function — guarantees opening rate, bags ready for filling every time |
| Pain Point 4: Manual PE bag sleeving — slow, inconsistent, labor intensive, high error rate | ✅ HAOSEN Solution: Automatic PE inner bag sleeving system — consistent positioning, no manual labor, higher speed |
| Pain Point 5: Ring mouth quality inconsistent — bags fail quality inspection | ✅ HAOSEN Solution: Ultrasonic or heating options — choose best method for your material. Clean, strong rings every time |
| Pain Point 6: Can't detect holes or defects in bags — defective bags reach customer, complaints, returns | ✅ HAOSEN Solution: AI vision detection system (optional) — real-time hole detection, auto reject defective bags, guaranteed yield |
| Pain Point 7: Bag cutting not straight — material waste, poor quality, customer rejects | ✅ HAOSEN Solution: EPC automatic deviation correction — straight, precise cuts, reduces waste by 5-8% |
| Pain Point 8: Workers need special skills for each machine — hard to find, high labor cost, high turnover | ✅ HAOSEN Solution: PLC touchscreen control — any worker can operate after 2 days training by HAOSEN engineer |
| Pain Point 9: Manual counting errors — wrong quantities shipped, customer disputes | ✅ HAOSEN Solution: Automatic counting & stacking — 100% accurate count, bags neatly stacked |
| Pain Point 10: Need both cold cut and hot cut for different orders — need two machines | ✅ HAOSEN Solution: One-key cold/hot conversion — one machine does both, saves capital investment |
| Pain Point 11: Hard to find replacement parts locally — long downtime, lost production | ✅ HAOSEN Solution: HAOSEN parts warehouse in India/SE Asia — common parts in 3 days; 24/7 remote support |
Applications
07
| Industry | Typical Products | Bag Type | Ring Mouth | Inner Bag |
| Cement | Cement bags, valve bags with ring mouth | Woven / Laminated | ✓ Required | PE inner bag (optional) |
| Fertilizer | Fertilizer bags, chemical bags with ring mouth | Woven / Paper-plastic | ✓ Required | PE inner bag |
| Animal Feed | Feed bags, pet food bags with ring mouth | Woven / Laminated | ✓ Required | PE inner bag / General inner bag |
| Food | Rice bags, flour bags, sugar bags with ring mouth | Woven / Paper-plastic | ✓ Required | General inner bag |
| Building Materials | Mortar bags, plaster bags with ring mouth | Woven / Laminated | ✓ Required | PE inner bag |
| Agriculture | Seed bags, grain bags with ring mouth | Woven | ✓ Required | General inner bag |
Production Configurations
| Configuration | Functions Included | Best For |
| Cut + Sew | Cutting + sewing only | Simple bags without inner bag or ring mouth |
| Cut + Sleeve + Sew | Cutting + PE sleeving + sewing | Bags with inner bag, no ring mouth |
| Cut + Sleeve + Sew + Ring Mouth | Full 4-in-1 | Complete bag production with inner bag and ring mouth |
| Full 4-in-1 + AI Vision | Full functions + defect detection | Premium quality control, zero defect requirement |
Ring Mouth Options
| Option | Best For | Advantages |
| Ultrasonic | Thin films, premium quality bags | Cleaner rings, no heat damage, stronger seal |
| Heating | Standard applications, thicker materials | Reliable, proven technology, lower cost |
Need a different configuration or special size? Contact HAOSEN for custom solutions.
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