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The double Shaft Excellence.

The Comexi S1 DS slitter is a multi-purpose and modular machine that will allow converters to cover a large variety of jobs, specially conceived for big diameters in the rewinder. This top of the range slitter delivers excellent results both in productivity and quality even in the most demanding jobs. Configurable in different modules depending on the productivity required. 

Thanks to its robust design, it can produce high-diameter reels at the output at very high working speeds. Its regulation and control components enable to produce difficult-to-handle jobs easily. Thus, the Comexi S1 DS can work with the thickest materials on the flexible market, including aluminium, wax or non-woven.

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600 m/min
1968.5 ft/min
800 m/min
2624.7 ft/min
1000 m/min
3280.8 ft/min
Web Width
900 / 1400 / 1700 (2100) mm
3 / 4.6 / 5.6 (6.9) ft
Unwinding Diameter
1000/1300 /1550 mm
3.3 / 4.3 / 5.1 ft
Rewinding Diameter
800 / 850mm (1000) mm
2.6 / 2.8 (3.3) ft
Rewinding weight
360 Kg
793.7 lb
400 Kg
881.8 lb
400 (550) Kg
881.8 (1212.5) Kg
Minimum Slitting Width
40 mm
0.13 ft
20 mm
0.07 ft
Acceleration Ramp
30 s
20 s
30 s
Web Path
Rewinder Technology
Friction-Load Cell & ALTS
Friction-Load Cell with
independent motors & ALTS
Friction-Load Cell with
independent motors & ALWS

Main benefits for you


The Comexi S1 DS offers different levels of automation including Positioning of knives and counter knives in a completely automatic fasion; therefore, circular knives and razor blades are positioned rapidly and accurately reducing changeover between jobs. Other automation such as core positioning or automated assistance in different areas of the machine is also available.

High quality, greater productivity
High quality, greater productivity

It offers the highest quality thanks to the use of a NIP to isolate the tension between unwinding and rewinding, a horizontal lay-on-roller rewinding system for extra stability, independent motors on each shaft as an option and true tension readings. The S1-DS has amazing acceleration rates and high production speeds that increase the average speed and the overall machine uptime.

Customizable and Versatile
Customizable and Versatile

The Comexi S1 DS slitter is ergonomic and easily operated, thanks to tools like the PC Touch- Panels that set the machine’s pace and store production data. The machine incorporates useful tools, such as the automatic rewind taper.

Comexi offers the option of customizing the machine with several automation options: splicing tables, slitting automation, automated reel unloading, robotic labelling of the finished reel, robotic transport and palletising and laser perforation system.

Comexi Cloud
Comexi Cloud

The perfect tool for plant managers. The Comexi Cloud 4.0 is a system that provides immediate data access, including that of: production, peripherical equipment, machine settings, productivity, operator’s performance, and customer orders among other relevant information. At each meter, this software will save the machines’ parameters, thus not only improving quality control and full traceability, but directly controlling costs as well. As a result of the Comexi Cloud on-line platform, customers are able to consult data from anywhere, at any time. This includes real time production information, historical data, automatic reports, and KPI'. Additionally, at anytime, the COMEXI-ORDERING-ON-LINE platform allows customers to directly click-and-buy any component from the machine / desktop.

The highest standards in complex Jobs

The Comexi S1 DS is an all-round machine, but it has been specially designed to complete the most demanding jobs with the maximum efficiency, meeting the demand for large reels in the flexibles market. Thanks to its top-of-the-range control systems, it can efficiently carry out jobs where  the thickness, gauge variations or low-adherence of the materials make control more difficult.


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Product family
Max. web width (in) 55.1 / 64.9 66.9
Unwinder maximum diameter (in) 39.4 61.0
Speed (ft/min) 1640.4 2624.6
Rewinder maximum diameter (in) 24.0 31.5 / 39.4
Minimum slit width (in) 1.5 0.8
Turret X X

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ISO 9001 ISO 14001 ISO 45001 UNE 166002 Emas Orgalime EPD