Product overview
Shrink wrapping requires the film, product movement and sealing cycle to remain synchronized. If film movement and product transfer are not coordinated, seal position and package handling can become inconsistent.
The Automatic L Sealing Machine uses a belt-to-belt transfer arrangement with synchronized film advance to move products from the in-feed conveyor into the L-bar sealing area. The machine is designed for production speeds of approximately 10 to 25 packs per minute, depending on product shape, package size and configuration. Pasted markdown(9)
Technogen Enterprise is a Manufacturer and Supplier of Automatic L Sealing Machine equipment for Tanzania, serving Food, Pharmaceutical, Nutraceutical, Chemical and Cosmetic packaging applications. Pasted markdown(9)
The sealing system uses a hot-knife arrangement with a Teflon-coated sealing blade. A multi-pin perforator wheel allows air evacuation from the film during the packaging process.
Film is mounted on a cradle roller arrangement and unwound through a motorized drive. A separate scrap-winding motor manages the remaining film web.
Temperature can be adjusted up to 200°C through PID control, allowing the sealing temperature to be set according to the packaging requirement. Pasted markdown(9) Pasted markdown(9)
Horizontal and vertical photocells detect incoming packs. Product-feed adjustment is performed through a handwheel, while safety provisions include an emergency stop and safety shutdown switch.
The machine can process single packs or multiple products grouped within one shrink package.
Working principle
- Products enter the machine through the in-feed conveyor.
- Horizontal and vertical photocells detect the incoming pack and coordinate movement towards the sealing section.
- A synchronized film-advance system supplies shrink film around the product.
- The product passes from the in-feed belt into the L-bar sealing area.
- The hot-knife sealing blade closes around the film and forms the required L-shaped seal.
- A multi-pin perforator allows trapped air to escape from the package.
- Film unwinding is motorized, while excess film is handled through the scrap-winding mechanism.
- The sealed package then transfers towards the shrink tunnel.
- Inside the tunnel, the conveyor carries the package through the controlled heated zone so the shrink film contracts around the product.
- The tunnel conveyor speed can be varied according to the packaging requirement.
Salient features
- Compact GMP Model : Designed for organized shrink-packaging operations.
- Hot-Knife Sealing : Provides L-bar film sealing with center-sealing arrangement.
- Teflon-Coated Blade : Sealing blade uses a Teflon-coated surface.
- Film Perforation : Multi-pin perforator assists air evacuation from shrink packs.
- Motorized Film Unwinding : Provides controlled film supply during production.
- Film Cradle System : Roller-style film rack supports film cores and unwinding.
- PID Temperature Control : Provides controlled sealing-temperature adjustment.
- Product Feed Adjustment : Handwheel allows in-line product-feed setting.
- Photocell Detection : Horizontal and vertical photocells detect incoming packages.
- Single / Multiple Packing : Supports individual and grouped product packs.
- Synchronized Transfer : Belt-to-belt system coordinates product movement and film advance.
- Variable Tunnel Speed : AC drive allows shrink-tunnel conveyor adjustment.
Safety & interlocks
- Safety Shutdown Switch : Provides machine shutdown under required conditions.
- Emergency Stop : Allows immediate machine stoppage from the operator position.
- Photocell Detection : Detects packages during automatic transfer and sealing.
Applications & industries
The Automatic L Sealing Machine is suitable for compatible shrink-wrapping applications across:
- Food processing.
- Pharmaceutical packaging.
- Nutraceutical packaging.
- Chemical products.
- Cosmetic products.
It can handle either individual products or compatible multi-product packs.
For Tanzania manufacturers requiring an automatic shrink-packaging system, the combination of synchronized film advance, L-bar sealing and downstream shrink tunnel provides a continuous packaging arrangement.
Application items
- Food Packaging : Shrink wrapping of compatible food products.
- Pharmaceutical Packaging : Film sealing and shrink wrapping of compatible pharmaceutical packs.
- Nutraceutical Packaging : Suitable for compatible nutraceutical products.
- Chemical Packaging : Supports compatible chemical product packs.
- Cosmetic Packaging : Suitable for compatible cosmetic packaging.
- Single Pack Wrapping : Processes individual products.
- Multi-Pack Wrapping : Handles compatible grouped-product shrink packs.
Technical specifications
| Parameter | TGLS-20 |
|---|---|
| MACHINE NAME | AUTOMATIC L-SEALING MACHINE |
| Speed | 10 to 25 Pack per minute depending upon shape of the product. |
| Max sealing size L + H (mm) | 500mm; Height: 110mm |
| Max sealing size W+H (mm) | 450mm; Height: 110mm |
| Conveyor motor | 90w 220v (each conv.) |
| Roll unwinding motor | 60w 220v |
| Scrap winding motor | 15w 220v |
| Power (KW) | 2.5 |
| Max Roll Dimension | 520 (L) X 300 (D) mm |
| Max. Sealing Size | 500(L) x 450 (W) mm |
| Working Height | 830mm + / - 30mm |
| Conveyor Belt width | 370mm |
| Machine Dimension | 1600(L) x 845(W) x 1370(H) mm |
| Power Supply | Single Phase 220V/50HZ other (Optional) |
| Temperature Control | Up to 200 degrees Adjustable with PID control |
| Air Pressure requirement | 7 bars |
| Tunnel Specification — Tunnel Dimension | 914 mm long |
| Tunnel Specification — Power Supply | 440 V, 3 PH, 50 HZ |
| Tunnel Specification — Tunnel Speed | 0 To 8 Mtr/Minute Variable A. C. Drive |
| Tunnel Specification — Conveyor | Mild Steel Rod |
| Tunnel Specification — Working Height | 750 mm |
| Tunnel Specification — Structure | M.S. sheet with powder coated finish |
| Tunnel Specification — Temperature Controller | 0 – 180? C (Variable) Digital with J Type Sensor |
Automatic L Sealing Machine for Tanzania production
For manufacturers in Tanzania, Automatic L Sealing Machine should be evaluated against the actual product, pack format, production schedule and operating environment. Automatic L-bar shrink wrapping machine with synchronized film advance, hot-knife sealing and conveyor transfer for single or multiple packs, with production speeds from 10 to 25 packs per minute. The selected arrangement must suit both routine output and the changeovers expected during normal production.
Operating and product considerations
Seal performance is governed by the packaging material, container or product dimensions, temperature response, dwell time and line speed. Compatibility samples are important because the correct heating, pressure, film or foil arrangement varies with the pack being produced.
Planning the complete production line
The equipment should be considered with the preceding filling or capping stage and the following inspection, coding or secondary-packaging operation. Tanzania projects also need to confirm utilities, ambient conditions and operator access around the sealing zone before the final system is selected.
Information required for machine selection
- Actual product and packaging samples or drawings
- Required output and operating schedule
- Available electrical, compressed-air, water or steam utilities
Enquiries are supported for projects in Dar es Salaam, Dodoma, Mwanza, Arusha, Morogoro and other Tanzanian industrial locations. The final model, construction, output, documentation and support scope are confirmed in the commercial and technical offer.
