Key Benefits
- Produces inner and outer bags simultaneously, cutting packaging time by half compared to sequential machines
- Ultrasonic sealing avoids heat damage to film, preserving the integrity of paper, plastic and aluminum layers
- Volumetric cup filling ensures consistent fill weight across 5 to 15 g per bag without manual adjustment
- Stepper motor controls outer bag length with precise positioning for uniform bag size
- Built with SUS304 stainless steel in all food contact areas for compliance with food safety standards
- Supports nitrogen flushing via reserved connector to extend shelf life of roasted coffee
Application Scenarios
- Coffee roasters packaging Robusta and blended coffee for retail or food service with consistent bag weight and seal quality
- Contract packers handling short runs of multiple coffee blends with quick format changeover between inner and outer bag sizes
- Brands requiring airtight packaging with nitrogen flush to maintain freshness in export markets
- Packaging facilities upgrading from manual bagging to automated inner and outer bag sealing
Who It Is For
- Coffee roasters moving from outsourced packaging to in-house automated bagging
- Contract packers serving multiple coffee brands with different bag formats and fill weights
- Export-focused producers needing nitrogen flushing and compliant packaging for international markets
- Buyers replacing older machines that use heat sealing and cause film degradation
Problems It Solves
- Manual inner and outer bag sealing is slow and inconsistent in fill weight and seal quality
- Heat sealing damages multi-layer films like paper/aluminum/plastic and causes film curling or delamination
- Lack of nitrogen flushing leads to faster oxidation and shorter shelf life for roasted coffee
- Inconsistent bag length from mechanical positioning causes misalignment in downstream packaging
- Non-food-grade materials or components risk failing food safety audits in EU and North American markets
Technical Features
- Ultrasonic sealing for inner and outer bags with no heat or adhesive required
- Volumetric cup filling system for 5 to 15 g per bag with consistent accuracy
- Stepper motor controls outer bag length with precise positioning and stable output
- PID temperature controller for accurate heat control in sealing zones
- PLC control with human machine interface for easy operation and parameter setting
- All food contact parts made of SUS304 stainless steel for hygiene and durability
- Reserved connector for nitrogen flushing to extend shelf life
- Optional flat cut, date printer, and easy tear device for added functionality
Specifications
| Machine model | C19D |
|---|---|
| Machine type | Drip Coffee Packaging Machine Series |
| Bag type | Ultrasonic sealing |
| Packing material | PLA/Paper/Plastic, Plastic/Aluminum/Plastic, Paper/Aluminum/Plastic, Filter paper |
| Feeding system | Volumetric cup filler |
| Package range | 5-15 g per bag |
| Inner bag size | L:50-75mm, W:50-90mm |
| Outer bag size | L:85-120mm, W:75-100mm |
| Inner bag film width | 180 mm |
| Outer bag film width | 200 mm |
| Packing speed | 40-60 bags/min |
| Power supply | Single phase, 220V, 50Hz, 3.7 kW |
| Machine weight | 600 kg |
| Machine dimension | 1200 x 900 x 1900 mm (L x W x H) |
Packing Materials It Runs
- PLA/Paper/Plastic film for compostable coffee bags
- Plastic/Aluminum/Plastic film for moisture and light barrier packaging
- Paper/Aluminum/Plastic film for premium retail coffee packaging
- Filter paper for inner bags in traditional drip coffee formats
How the Machine Works
- 1Film unwinding and inner bag forming
- 2Volumetric cup filling with 5 to 15 g per bag accuracy
- 3Inner bag ultrasonic sealing and cutting
- 4Outer bag forming and ultrasonic sealing
- 5Bag discharge and optional date printing or easy tear feature
Quality Control Before Shipment
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Certifications
- ISO
- CE
Customization Options
- Choice of inner and outer bag sizes within the 50-75mm and 85-120mm length range
- Film width set at 180 mm for inner bag and 200 mm for outer bag
- Optional flat cut, date printer, and easy tear device added at factory
- Reserved connector for nitrogen flushing system integration
- Power supply configured for destination market voltage and plug type on request
How It Compares
| Sequential inner and outer bag machine | The C19D produces both bags at once, reducing cycle time and labor, but requires a single film roll with pre-printed or pre-cut inner and outer layers |
|---|---|
| Heat sealed coffee bag machine | Ultrasonic sealing avoids film damage and delamination in multi-layer films, but requires an air supply and is not suitable for very thick or fibrous materials |
| Manual bagging with hand sealers | The C19D replaces a manual team and ensures consistent fill and seal, but requires a fixed floor space of 1200 x 900 mm and trained operator for changeover |
Use Guide
- 1Connect a clean dry air supply and single phase 220V 50Hz power outlet
- 2Load the film roll matching the 180 mm inner or 200 mm outer width
- 3Set inner and outer bag sizes within the 50-75mm and 85-120mm length range
- 4Enter target fill weight between 5 and 15 g and calibrate the volumetric cup with your coffee
- 5Run ten sample bags and check fill weight, seal quality, and bag length before batch start
- 6Install optional date printer or nitrogen flush system as needed for shelf life requirements
C19D Ultrasonic Seal Robusta Coffee Bag Packing Machine FAQ
What is the fill weight range for the C19D?
5 to 15 g per bag, with consistent accuracy using the volumetric cup filler.
How fast does it run?
40 to 60 bags per minute, depending on bag size, fill weight, and coffee flow rate.
Can it run nitrogen flushing?
Yes. The machine has a reserved connector to link with a nitrogen making machine for flushing.
What power supply does it need?
Single phase 220V 50Hz, 3.7 kW. We can adjust the voltage and plug type for your market.
What film types can it use?
PLA/Paper/Plastic, Plastic/Aluminum/Plastic, Paper/Aluminum/Plastic, and filter paper.
Is the machine certified?
Sengong is certified to ISO and CE. Certificates are available on request via email or WhatsApp.
How much floor space and lifting capacity do I need?
The machine measures 1200 x 900 x 1900 mm and weighs 600 kg, so plan for forklift access and doorway clearance.
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Tell us your product, bag weight and hourly output. We confirm the film, the bag size and the total delivered price.