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Automatic coreless Rewinder PSF CORELESS 250

Automatic coreless Rewinder
PSF CORELESS 250
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coreless stretch film rewinder
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Fully automatic machine PSF CORELESS 250 was specially designed for high-speed stretch film rewinding from a jumbo roll into small rolls without a core. Coreless production ensures cost reduction due to the absence of cardboard cores, and simplifies logistics solutions of the company. The rewinder is characterized by stable work and an average output of 100 tons per month. It is the best choice for manufacturing coreless hand and machine stretch rolls.
Products
Coreles_01
Coreles_02
Coreles_03
CORELESS hand roll
CORELESS pre-stretch hand roll
Materials
Productivity
PSF CORELESS 250 PRODUCTIVITY
120 tonnes per month
PSF CORELESS 250 PRODUCTIVITY
132 tons per month
Class-Engineering produces
high-performance equipment.
Our rewinders have the highest
productivity
in the world.
We want to show it in real figures and
we are currently working on a productivity calculator.
Thanks to this service you will learn
what factors influence
productivity, and you can calculate yours.
Performance
calculator COMING soon!
This block is currently in development.
We can inform you on its readiness.Click
Here

Functions and options
JR ENDING MONITORING SYSTEM
JR ENDING MONITORING SYSTEM
The system is used to timely stop rewinding process when minimal amount of the film remains on the JR (minimal outer JR diameter).

This criterion is checked by an optic sensor by means of a special mark. When the sensor detects the critical value, the rewinding process is stopped. After that, the operator can replace the JR and finish rewinding at minimal speed.

This makes it possible to finish the process without rejection of the roll due to improper film length.
ADVANTAGES:
Decrease of rejected roll quantity
Increase of production efficiency
Time savings due to elimination of necessity to rethread the film
FILM BREAK MONITORING SYSTEM
FILM BREAK MONITORING SYSTEM
If the film breaks, the rewinding process is stopped automatically. The sensor measures the length of already wound film and displays the corresponding notification message. After rethreading, the system recalculates the length (weight) still to be wound, which allows the machine to rewind the target length or weight of the film.
ADVANTAGES:
Decrease of production waste quantities
Elimination of prolonged delays due to fast response to the abnormal situation
REWINDING WITH PRESET LENGTH
REWINDING WITH PRESET LENGTH
This mode makes it possible to rewind finished rolls with preset length of the film.
ADVANTAGES:
High rewinding precision: length error does not exceed 1 m.
REWINDING WITH PRESET WEIGHT
REWINDING WITH PRESET WEIGHT
This mode makes it possible to rewind finished rolls with preset (gross) weight.
ADVANTAGES:
High rewinding precision: weight error does not exceed 15 g.
FISCAL COUNTER
FISCAL COUNTER
The fiscal counter counts the finished rolls and stops the machine as soon as the target number of them is wound. The operator sets the necessary finished roll quantity in accordance with his job order. Upon completion of the task, the machine stops and the corresponding notification message appears on the controller display.

ADVANTAGES:
Process automation
High equipment precision
Elimination of prolonged delays due to fast response to the task completion
EXTENDED ENGINEERING MENU
EXTENDED ENGINEERING MENU FOR TECHNICAL PROFESSIONALS
The extended engineering menu is intended for troubleshooting and setup of the equipment. The control system interface is divided into the following access levels:

1. The first access level for operators
2. The second access level for technical professionals
ADVANTAGES:
Quick troubleshooting (in/out menu)
Convenient equipment change-over to another raw material type (manual debugging mode)
Control at different access levels
MULTILINGUAL CAPABILITY
The multilingual controller capability makes it possible to select a necessary interface language. The basic menu configuration supports 10 languages. If necessary, customers may request the manufacturer to translate the interface to a new language.
ADVANTAGES:
Prevention of improper setup of the machine parameters
Comfortable and safe operator’s activity
Possibility of switching to various languages
RECIPES OF REWINDING SETTING
Recipes are a function of the controller menu. It can be used by the operator to configure and save settings of the stretch film rewinding.
ADVANTAGES:
Manufacturing process acceleration
Increase of productivity due to time savings
Simplification of the operator’s work
STACKING TABLE
The stacking table is designed for collecting and stacking finished rolls. Thanks to this feature, the operator has no need to extract and transfer the rolls to the hopper/container as soon as the cycle is over.
ADVANTAGES:
Comfortable operator’s activity
WEIGHING SYSTEM
This system is used to measure the weight of rolls in the specific weight winding mode of the machine. The system weighs each roll at the end of the winding cycle. If the measured weight differs from the rated value, the settings are automatically corrected to tailor to the next roll.
ADVANTAGES:
Prevention of rejects
SHOW/HIDE ALL
JR ENDING MONITORING SYSTEM
The system is used to timely stop rewinding process when minimal amount of the film remains on the JR (minimal outer JR diameter).

This criterion is checked by an optic sensor by means of a special mark. When the sensor detects the critical value, the rewinding process is stopped. After that, the operator can replace the JR and finish rewinding at minimal speed.

This makes it possible to finish the process without rejection of the roll due to improper film length.
ADVANTAGES:
Decrease of rejected roll quantity
Increase of production efficiency
Time savings due to elimination of necessity to rethread the film
Specifications / Technical data
COMPRESSED AIR
Air pressure – 6–10 bar
Air consumption – 750 l/min
Speed
Mechanical speed is – 1,300 m/min
ELECTRIC POWER SUPPLY
Power consumption – 12 kWh
Supply voltage – 380 V, 50 Hz
COMPRESSED AIR
Air pressure – 87–145 psi
Air consumption – 26.5 cu ft/min
Speed
Mechanical speed is – 4265 ft/min
ELECTRIC POWER SUPPLY
Power consumption – 12 kWh
Supply voltage – 380 V, 50 Hz