Rotogravure Printing Machine with Turret Unwind and Rewind System
Non-Stop Roll Changing for High-Volume Flexible Packaging Printing
Mohindra Mechanical Works manufactures the Rotogravure Printing Machine with Turret Unwind and Rewind System for packaging converters looking for faster roll changes, less machine stoppage and consistent production.
The double-position turret permits the preparation of the next material roll and rewinding core while the active roll is in operation. Depending on the automation selected the machine can be equipped with automatic roll-change, auto-splicing or flying-splice system to provide continuous roll-to-roll printing.
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Built for Continuous Flexible Packaging Production
A major source of lost production time in conventional rotogravure printing is roll changing. Usually the machine has to slow down or stop for material replacement when the rewind roll reaches its specified diameter or the unwind roll is finished.
Our Turret Rotogravure Printing Machine overcomes this difficulty by providing two roll-holding positions at both the unwinding and rewinding portions. One position can still be active while operators set up the next roll or core at the alternate position.
A appropriate automatic splicing design enables changeover without the need to stop the entire printing process. This makes the machine particularly suitable for large-volume packaging orders, repetitive projects and prolonged production schedules.
How the Turret Rotogravure Printing Machine Works
- The first material roll is loaded at the active position of the turret unwinder.
- A replacement roll is prepared at the second unwind position while printing continues.
- Automatic tension and web-guiding systems feed the substrate into the printing section.
- Engraved cylinders transfer each colour onto the moving substrate.
- The printed web passes through the drying section after every printing station.
- The finished material is collected on the active turret rewind shaft.
- When the active unwind roll is nearly finished, the web is transferred to the prepared replacement roll.
- When the finished rewind roll reaches the selected diameter, winding shifts to the fresh core.
Automatic Turret Unwind System
The turret unwinder holds an active material roll and a standby roll. The replacement roll can be loaded and prepared while printing continues from the running roll.
As the active roll approaches completion, the system initiates the changeover according to the selected manual, semi-automatic or automatic operating mode. An optional splicing arrangement joins the new material web to the running web.
The turret unwinder supports:
- Controlled material feeding
- Preparation of the next roll during production
- Reduced roll-loading interruption
- Improved machine operating time
- Faster changeover between rolls
- Consistent web alignment
A shaftless roll-holding arrangement can also be provided according to roll diameter, core size and material-handling requirements
Turret Rewind System
The turret rewinder winds up the substrate that has been printed and dried in the form of a roll. While one rewinding station is active, a new core is being set at the other station. Once the roll reaches the desired diameter, the web is switched over to the new core based on the chosen changeover method.
The wound-up roll can now be removed without stopping the active station. In this way, it becomes easier to handle the finished roll and avoids downtime associated with roll removal and setting of a new core.
Automatic Splicing and Flying Splice Options
For operations requiring uninterrupted production, the machine can be supplied with an automatic splicing system. This system prepares the replacement roll and joins it to the running material during changeover.
A flying splice system can be considered for applications requiring roll replacement while the web remains in motion. The exact splicing method is selected according to substrate behaviour, web width, operating speed, roll diameter and production requirement.
Automatic splicing can help manufacturers achieve:
- More consistent production planning
- Reduced production interruptions
- Faster roll-to-roll changeovers
- Improved output during long printing runs
- Lower material wastage during roll replacement
Splicing performance and operating speed depend on the selected substrate and final machine configuration.
Key Benefits
- Consistent Finished Rolls : The turret rewinding system supports controlled winding and organized handling of completed printed rolls.
- Stable Web Control : Automatic tension and electronic web guiding help maintain controlled substrate movement during printing and roll changeover.
- Improved Production Output : Reduced roll-changing time allows more of the scheduled shift to be used for productive printing.
- Continuous Production Capability : Automatic splicing and web-transfer options support long printing runs with minimal process interruption.
- Faster Roll Changeover : The turret mechanism reduces the manual time required to unload completed rolls and prepare replacement rolls.
- Reduced Machine Stoppage : Standby roll positions allow the next material roll and rewinding core to be prepared while production continues.
35+ Years of Manufacturing Experience
Precision Engineering & Quality Manufacturing
Customized Machine Configurations to Your Needs
Fast and Reliable After-Sales Support
Suitable Printing Materials
The 8 Colour Rotogravure Printing Machine can be configured for:
- Polyethylene film
- HDPE film
- LDPE film
- CPP film
- PVC film
- PET and polyester film
- BOPP film
- Flexible packaging materials
- Paper rolls
- Kraft and coated paper
- Pharmaceutical foil
- Aluminium foil
- Laminated packaging film
- Metallized film
Packaging Applications
Our Eight Colour Rotogravure Printing Machine is suitable for producing:
- Cosmetic packaging
- Detergent pouches
- Dairy-product packaging
- Frozen-food packaging
- Tea and coffee packaging
- Spices and dry-food packaging
- Snack and namkeen pouches
- Labels and decorative films
- Gift-wrapping paper
- FMCG product wrappers
- Edible-oil packaging
- Laminated rice bags
- Pharmaceutical packaging
- Personal-care packaging
Frequently Asked Questions
Yes. The Multi-Colour Turret Rotogravure Printing Machine can be configured with the required number of printing stations.
The machine can be configured for BOPP, PET, CPP, PVC, LDPE, metallized film and suitable flexible packaging substrates.
Yes. A shaftless roll-holding configuration can be considered according to roll weight, diameter, core size and handling requirements.
Yes. The machine can be supplied as a Double Turret Rotogravure Printing Machine with turret systems at both the unwinding and rewinding sections.
With the required turret, automatic splicing and web-transfer configuration, the machine can support non-stop or near-continuous roll-to-roll production. Actual changeover performance depends on operating conditions.
A flying splice system can be provided for suitable substrates and production requirements. Its feasibility depends on the material, speed, roll dimensions and selected machine design.
Is a flying splice system available?An automatic splicing system connects the replacement material roll to the running web during roll changeover. It reduces manual web joining and production interruption.
Yes. An automatic roll-change system can be provided according to the selected machine configuration and automation level.
Its main advantage is faster roll changeover. The alternate roll positions reduce machine stoppage and improve production efficiency during long printing runs.
A Turret Rotogravure Printing Machine uses multiple roll-holding positions at the unwind and rewind sections. It allows standby rolls and fresh winding cores to be prepared while the active roll remains in production.
