LTS Splicer

Constant Tension Splicer

The LTS is a medium-speed, high-performance splicer that MTorres offers with various configurations, depending on the required splicing speed, and can reach a splicing speed up to 470 m/min (1570 fpm). It is ideal for gypsum, paper, cardboard and other rigid materials such as laminated papers used in printing, extrusion coating, lamination processes, etc. in numerous applications. Following its standard configuration, the LTS has been designed to work with floor pick-up type unwinders.

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Butt Splicing Unit

The Butt Splice unit is integrated into a carriage that moves horizontally from the splice position to the preparation positions. Vacuum bars hold the paper in position during the splice preparation enabling the operator to easily and quickly prepare the new splice.

It is capable of working with the RUNNING OFF THE CORE option, that is, the complete completion of the paper on the core.

Multiple Store Capacity

Depending on the required splicing speed, a double, triple or quadruple store would be supplied to be able to feed material (paper) to the line during the splicing process, without reducing the working speed. The rollers are made of aluminum with an appropriate surface treatment, depending on the material being unwound. The store position is a “floating system” controlled by a pneumatic clutch. The desired web tension will be determined by the pressure in the clutch, and it is an input value in the HMI.

Tension control

The second function of the store is to work as a dancer roll during the unwinding process to maintain constant web tension, absorbing possible tension fluctuations that may arise. A pull and brake, controlled by an AC motor with an AC drive, helps to control the web tension. A deviation of the store position from its set point affects the speed of the pull and brake, and returns it to the working position without changing the web tension. During the splice sequence, the pull and brake accelerate the new reel, maintaining constant web tension at the splicer exit.



You will find all the technical information specified in the product catalogue.



LTS Options Improvement Area
R.O.C. 1) Automatic splicing to minimize waste Raw material savings
External Pull and Brake (included in rack) Unwinder web tension isolation - process Process quality
Edge guide system Web Alignment Process quality
Special rollers Adaptation to demanding Process quality / coverage range
Butt Splice Butt Splice Process quality
Motorized Chucks Unwind Control Process quality / maintainability / energy saving
Auto loading / unloading Reel Handling Process efficiency - productivity / ergonomics
Conveyors Reel Handling Process efficiency - productivity / ergonomics
Core finder Reel Handling Process efficiency - productivity/ ergonomics
Lifting - Peeling Reel Handling Process efficiency - productivity / ergonomics
Other Core diameters Cores Customization
Chuk Adapters Cores Customization
TorresFactory Operational availability monitoring and improvement tool for productivity improvement Process efficiency - productivity
Rockwell Platform Control Customization
UL regulations Norms Customization
MTorres Unwind Tests Tests Optimization
Other non-CE language Documentation Customization
Imperial unit of measure Documentation Customization
Recommended Spares Kit Spare Parts Maintainability / process efficiency

1) for substrates from 120/130 gsm.

The splice is made by detecting the color change between the core and the web, therefore a color change detection is needed.

The web must be attached to the core across the entire width. It cannot be partially detached from it.

Any questions?

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