CUT-TO-LENGTH · HIGH-SPEED

High-Speed Cut-to-Length Line

Synchronised cutting: punches, V-notch and shears strike on one beat — the strip never stops. High volume, fast cycle times, frequent changeovers.

Steady batches, few lamination types? → See the Standard Line

How it differs from the standard line

Cutting Synchronised — strip never stops Standard: step by step
Stations All moving — change laminations, not dies Standard: fixed or few moving
Feed High-speed servo uncoil & feed Standard: NC feed
Collation Extended collation chain, no stops to unload Standard: neat stacking, twin tables
Best for High volume, frequent changeovers Standard: steady batches, few types

Choose your width class




200 — small distribution transformers, export best-seller

Reference build: 2 shears · 2 V-notch · 3 hole punches (SRHJ200-223G class) · 4-head decoiler

Strip thickness0.18 – 0.35 mm 0.15 mm on request
Strip width45 – 220 mm
Lamination length450 – 1500 mm
Max line speed210 m/min (rec. ≤180)
Length tolerance±0.15 mm / 1500 mm
Angle tolerance±0.05°
Burr≤0.02 mm
Installed capacity≈65 kW

300 — distribution mainstay

Reference build: 2 shears · 3 punch units (300-23G class) · 4-head decoiler (Ø1200, 2.5 t/head)

Strip thickness0.18 – 0.35 mm 0.15 mm on request
Strip width35 – 320 mm
Lamination length350 – 1500 mm
Max line speed210 m/min
Length tolerance±0.15 mm / 1500 mm
Angle tolerance±0.01°
Burr≤0.02 mm
Installed capacity≈46 kW

400 — distribution flagship, small power transformers

Reference build: 2 shears · 2 V-notch · 3 hole punches (SRHJ400-223G class) · 2-head decoiler

Strip thickness0.18 – 0.35 mm 0.15 mm on request
Strip width45 – 440 mm
Lamination length450 – 2500 mm
Max line speed210 m/min (rec. ≤150)
Length tolerance±0.15 mm / 1500 mm
Angle tolerance±0.05°
Burr≤0.02 mm
Installed capacity≈60 kW

600 — large distribution, medium power

Reference build: 2 shears · 2 V-notch · 2 hole punches (SRHJ600-222G class) · 2-head decoiler

Strip thickness0.18 – 0.30 mm
Strip width70 – 640 mm
Lamination length700 – 3500 mm
Max line speed210 m/min
Length tolerance±0.2 mm / 2 m
Angle tolerance±0.02°
Burr≤0.02 mm
Installed capacity≈60 kW

Coil requirements across all models: width tolerance ±0.1 mm · burr ≤0.02 mm · camber ≤0.15–0.2 mm/2m. Formal model codes and item-by-item configuration are fixed in the technical agreement. Installed capacity varies with the exact station configuration of each reference build.

Options

Orientation Left-hand / right-hand line
Decoiler 2-head / 4-head
Hole punches 0 – 4 units · die size to drawing
V-notch 1 / 2 units
Shears 45° + 135° standard; 45° rotating to 90° optional
Stacking tables 1+1 / 3+3 / 5+5 stations
Take-off Hand cart / RGV (single or multi station)
Servo & controls Siemens / Rockwell (AB) / Chinese brands
Software PLS machine terminal (optional) – reads lamination drawings and auto-generates cutting programs

Line speed, and what it means for your shift output

Peak feeding speed (300 / 400 class servo builds)up to 240 m/min
Typical rated speed (most builds)210 m/min
Recommended working speed120 – 180 m/min
Depends onsteel grade & flatness
Depends onlamination type and length
Depends onpunching pattern per sheet

Peak speed is a machine rating, not a shift figure. Real output follows this chain: rated feeding speed, minus cutting stops for each punch and V-notch, minus coil and job changeover, times shift utilisation. Short laminations with four punches per sheet run far below peak; long yoke sheets run close to it. Our engineers calculate the sheets-per-minute and cores-per-shift figure for your own lamination drawing before quoting – and that calculated figure, not the peak speed, is what goes into the technical agreement and the FAT.

Peak 240 m/min figures come from SRHJ300-24 and SRHJ400-24B class technical files; 210 m/min with a recommended working speed of 120-180 m/min is the common configuration. Formal speed for your project is fixed in the technical agreement.

Inside the line

Multi-head decoiler - hydraulic mandrel clamping
Multi-head decoiler – hydraulic mandrel clamping
Servo-driven punching station
Servo-driven punching station
Precision strip guiding
Precision strip guiding
Shear station - burr under 0.02 mm
Shear station – burr under 0.02 mm
Collation chain
Collation chain
Automatic stacking section
Automatic stacking section

Technical datasheet (PDF)

Two pages: headline specs, full parameters, standard and optional configuration, FAT and service scope. Version High-Speed-CTL-Line_EN_RevA_2026-08

Download datasheet

See it running

Semi-high-speed line
High-speed line at customer site
Aligned stacking

Not sure which line fits?

Send us your lamination drawings — our engineers return a selection plan with knife layout and floor plan.

Configure Your Line Online

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Nantong Sirui Engineering Co., Ltd.(南通思瑞机器制造有限公司)
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