Ruian Xuanhai Machine engineers and manufactures industrial vacuum bag making machines for food-grade vacuum packaging, compression storage bags, and high-barrier pouch production — with factory-direct pricing, full technical support, and global export experience.
A vacuum bag making machine is industrial equipment that automatically forms, seals, and cuts vacuum-sealable pouches from roll-stock laminated films. The resulting bags are engineered to withstand the pressure differential of vacuum sealing — keeping food, medical devices, and industrial components protected from oxygen, moisture, and contamination.
Unlike standard pouch-making equipment, vacuum bag machines must produce seals with superior integrity: typical peel strength exceeds 35 N/15mm to maintain airtight closure under vacuum conditions. At Xuanhai, our vacuum bag production lines are built around servo-driven tension control and precision heat-sealing systems that guarantee consistent seal quality at production speeds of up to 150 bags per minute.
Produces flat vacuum pouches sealed on three sides, used for food vacuum packaging, retort pouches, and industrial part protection. Compatible with PA/PE and AL/PE structures.
Most PopularMakes household and travel vacuum compression bags (space-saver bags) with valve holes for manual or pump-assisted air removal. PA+PE and PET+PE compatible.
Consumer GoodsCombines stand-up pouch structure with vacuum-compatible materials and optional zipper insertion. Ideal for resealable vacuum food pouches (nuts, coffee, pet food).
Food RetailProduces retort-grade vacuum pouches that can withstand high-temperature sterilization (121°C+). Used for shelf-stable ready meals, seafood, and medical packaging.
Pharma / FoodStandard parameters across Xuanhai vacuum bag making machines. Custom configurations are available on request.
| Parameter | Standard Range | Notes |
|---|---|---|
| Bag Width | 100 – 600 mm | Custom tooling available |
| Bag Length | 80 – 800 mm | Servo-controlled cut length |
| Production Speed | 60 – 150 pcs/min | Depends on bag size & film |
| Film Thickness | 60 – 200 µm | PA/PE, PET/PE, AL/PE |
| Sealing Temperature | 100 – 280 °C | 6-zone independent control |
| Max Roll Diameter | φ 600 mm | Auto tension correction |
| Seal Strength | ≥ 35 N / 15 mm | Per GB/T 15171 standard |
| Drive System | Dual servo motor | Panasonic / Mitsubishi |
| Control System | PLC + 7" HMI Touch | Recipe storage up to 99 jobs |
| Power Supply | 380V / 50Hz / 3-phase | Customizable for export markets |
Choosing the right laminated film structure is critical for vacuum bag performance. The table below compares the four main film types our machines process:
| Film Structure | O₂ Barrier | Puncture Resistance | Best For |
|---|---|---|---|
| PA / PE (Nylon)Recommended | Excellent | Excellent | Food vacuum, retort |
| PET / PE | Good | Very Good | Food, compression bags |
| AL / PE (Foil) | Outstanding | Good | Pharma, light-sensitive |
| OPP / CPP | Moderate | Moderate | Short shelf-life snacks |
Note for buyers: PA/PE (Nylon/Polyethylene) is the industry gold standard for true vacuum packaging. Its molecular structure resists oxygen permeation 10× better than plain PE, while its flexibility prevents seal cracking under vacuum stress. We recommend PA/PE for any application where extended shelf life under vacuum is required.
Roll-stock laminated film feeds from the unwind station. Servo-driven tension control with magnetic powder brakes ensures consistent feed speed regardless of roll diameter, preventing wrinkles that cause seal defects.
For 3-side seal bags, the film is folded into a U-channel. For flat vacuum bags, two separate film webs are precisely aligned. Photoelectric tracking ensures edge alignment to ±0.5 mm.
Heated seal bars close on both lateral edges with precisely calibrated temperature and dwell time. The seal bar width can be set from 8–20 mm depending on bag application.
The bottom seal is formed by a cross-seal jaw with integrated cooling. The dual heat-cool cycle — a Xuanhai-engineered feature — reduces seal crystallization and improves peel strength consistency by up to 18%.
A servo-synchronized cutter separates finished bags. Cut length is set via the HMI and automatically adjusted by a photoelectric color-mark sensor for printed films.
For compression storage bags, a valve hole is punched and reinforced. For resealable vacuum bags, a zipper strip is fed and sealed inline without slowing production speed.
Our vacuum bag making machines serve manufacturers across a broad range of sectors. Vacuum packaging is chosen wherever shelf life, contamination prevention, or space reduction are primary concerns.
Most vacuum bag machine suppliers in China are trading companies reselling third-party equipment. Xuanhai is a direct factory — our machines are designed, assembled, and tested at our 8,000 m² plant in Ruian, Zhejiang, China. This means every customization request (bag size, film compatibility, optional modules) is handled in-house without margin stacking.
Dual-cooling seal technology. Competitors use single-phase cooling. Our machines apply two sequential cooling passes after heat sealing, reducing residual heat distortion in thin PA/PE films and increasing seal strength consistency across ambient temperature changes — a critical factor for customers operating in tropical climates.
Recipe memory system. Our PLC stores up to 99 bag-type recipes. Operators switch between vacuum bag types (size, temperature profile, cut length) in under 60 seconds without manual calibration, dramatically reducing changeover waste.
Real-time tension feedback. Rotary encoders on both the unwind and feed rollers continuously compare actual vs. target tension, making micro-corrections 50 times per second. This eliminates the "accordion effect" — the leading cause of edge-seal defects in high-speed bag production.
| Feature | Xuanhai | Trading Co. (OEM Reseller) | Budget Manufacturer |
|---|---|---|---|
| Direct factory pricing | ✓ | ✗ (mark-up) | ✓ |
| Custom bag size tooling | ✓ In-house | Limited | Limited |
| Dual-cooling seal system | ✓ Standard | Rare | Not available |
| Servo tension control | ✓ Dual servo | Varies | Single servo |
| Export experience | ✓ 30+ countries | Varies | Limited |
| On-site installation support | ✓ Available | ✗ | Rare |
| Spare parts availability | ✓ Stocked | Third-party | Varies |
Share your bag dimensions, target output, and film type — our engineers will recommend the right vacuum bag making machine configuration and provide a factory-direct quote within 24 hours.