COIL SLITTING CENTER

The Coil Slitting Center at Therma FM s.r.o. in Pržno, near Frýdlant nad Ostravicí, divides steel coils. We offer both longitudinal and transverse cuts to customer specifications. Our center follows EN ISO 9001:2015 standards and has the 9001 certification.  

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Longitudinal ​slitting line 0.20 – 0.80 x 1250mm

Input material: cold rolled steel, electrotechnical with coating, galvanized, corrosion resistant

LIMIT OF STRENGTH MIN. 150MPA MAX. 800MPA
WAIST WIDTH MIN 400mm MAX 1250 mm
WAIST THICKNESS MIN 0,20 mm MAX 0,80 mm

ENTRY SCROLL

Close-up of a longitudinal slitting line in operation, showing precise cutting of metal sheets into narrow strips.
INNER DIAMETER 500 mm
OUTER DIAMETER MAX 1250 mm
SCROLL WEIGHT MAX 7500 kg

EXIT SCROLL

INNER DIAMETER 500 mm
OUTER DIAMETER MAX 1250 mm
SCROLL WEIGHT MAX 7500 kg
TAPE WIDTH MIN 20 mm

ACCURACY OF THE WIDTH OF THE LONGITUDINAL CUT

THE WIDTH OF THE DIVISION OF INDIVIDUAL STRIPS 20 – 150 mm MAX +/- 0,008mm
THE WIDTH OF THE DIVISION OF INDIVIDUAL STRIPS OVER 150 mm MAX +/- 0,008mm
BURNER (NEEDLE) MAX 0,02 mm

The dimensional parameters of the divided tapes meet the requirements of the EN 10107 standard

CUTTING DIA​GRAM

THICKNESS (mm) NUMBER OF CROSSES BETWEEN STRENGTH 500 MAX SPEED (m/min)
0,15 mm 23 80
0,5 mm 18 70
0,8 mm 15 60

In the packaging area, we sort individual tapes by width. We then tape and bundle them on a pallet. We protect scrolls against weather effects using stretch film or anti-corrosion paper, based on the customer's request. The line operates at a maximum speed of 80m/min. We use cutting-edge blade knives made from cemented carbides (80% WC) for longitudinal division.  

EXIT SCROLL

LONGITUDINAL ​slitting line 0.15 - 0.80 x 420mm

Input material: cold-rolled steel, electrotechnical coated, galvanized, corrosion-resistant

LIMIT OF STRENGTH MIN. 150MPA MAX. 800MPA
WAIST WIDTH MIN 30 mm MAX 420 mm
WAIST THICKNESS MIN 0,15 mm MAX 0,80 mm

ENTRY SCROLL

Longitudinal slitting line in action, with metal sheets being accurately cut into desired widths.
INNER DIAMETER 500 mm
OUTER DIAMETER MAX 1200 mm
SCROLL WEIGHT MAX 2000 kg

EXIT SCROLL

INNER DIAMETER 500 mm
OUTER DIAMETER MAX 1250 mm
SCROLL WEIGHT MAX 2000 kg
TAPE WIDTH MIN 6 mm / MAX 400 mm

ACCURACY OF THE WIDTH OF THE LONGITUDINAL CUT

THE WIDTH OF THE DIVISION OF INDIVIDUAL STRIPS 6 – 150 MM MAX +/- 0,008mm
THE WIDTH OF THE DIVISION OF INDIVIDUAL STRIPS OVER 150MM MAX +/- 0,01mm
BURNER (NEEDLE) MAX 0,02 mm

The dimensional parameters of the divided tapes meet the requirements of the EN 10107 standard

CUTTING DIAGRAM
THICKNESS (mm) NUMBER OF CROSSES BETWEEN STRENGTH 500 MPa MAX SPEED (m/min)
0,15 mm 20 50
0,5 mm 17 45
0,8 mm 12 40

Our line in the coil slitting center works at a maximum speed of 50m/min. We use top-of-the-line disc knives made from cemented carbides (80% WC) for longitudinal division. In packaging, we sort individual tapes by width, then tape and bundle them on a pallet. We protect scrolls against weather effects using stretch film or anti-corrosion paper as requested by the customer.  

TRANSVERSE ​slitting line SC - 300 0.15 x 300 mm

Input material: cold-rolled steel, electrotechnical coated, galvanized, corrosion-resistant

LIMIT OF STRENGTH MIN. 150MPA MAX. 800MPA
WAIST WIDTH MIN 20mm MAX 300 mm
WAIST THICKNESS MIN 0,15 mm MAX 0,50 mm

ENTRY SCROLL

INNER DIAMETER 500 mm
OUTER DIAMETER MAX 1000 mm
SCROLL WEIGHT MAX 1000 kg
Overview photo of a longitudinal slitting line, demonstrating the efficient process of dividing metal sheets into individual strips.

EXIT SCROLL

LENGTH MIN 10mm / MAX 10000 mm
Length tolerance up to 30 mm +/- 0,1 mm
Length tolerance 31 – 120 mm +/- 0,15 mm
Length tolerance 121 – 400 mm +/- 0,2 mm
Length tolerance 401 – 1000 mm +/- 0,3 mm
Length tolerance 1001 – 2000 mm +/- 0,4 mm

When cutting boards, we can punch circular holes of various diameters (10 mm, 11 mm, 12 mm, 22 mm). We place the cut boards on a pallet, tape them, and wrap them in anti-corrosion paper at the Coil Slitting Center.