SLITTING · SRZJ SERIES

Silicon Steel Slitting Line

Coils into strips under controlled tension: servo blade-width adjustment, up to 11 knife pairs cutting 10 strips in one pass, tension-controlled rewinding that keeps thin gauge flat.

Why this machine holds tolerance

Hardened, plated spindle

Spindle at HRC 50-59 with hard chrome plating over 0.1 mm; axial runout under 0.005 mm, radial under 0.01 mm – the geometry behind clean strip edges.

Servo blade-width adjustment

Knife positions set by servo, not by hand – changeovers are minutes, and repeatable to the same width every time.

Controlled tension rewinding

500 kg rewind tension, adjustable to coil tightness – thin 0.18 mm strip comes off flat and telescope-free.

Loading cart to rewind, one flow

Coil cars, decoiler, slitter, tensioner and rewinder work as one programmed line – one operator runs it.

Key specifications

Reference build: SRZJ1250 series · 10 t decoiler · right-hand line

Coil width500 – 1250 mm
Coil weightup to 10 t
Strip thickness0.18 – 0.35 mm
Knife pairsup to 11 (10 strips)
Min strip width40 mm
Slitting speed0 – 120 m/min
Width tolerance±0.1 mm
Edge camber≤0.2 mm / 2 m
Burr≤0.02 mm
Installed capacity≈54 kW

Rewind tension 500 kg (adjustable) · left-hand or right-hand line · formal model and configuration fixed in the technical agreement.

Technical datasheet (PDF)

Two pages: headline specs, full parameters, standard and optional configuration, FAT and service scope. Version Slitting-Line_SRZJ_EN_RevA_2026-08

Download datasheet

See it running

Servo blade-width adjustment
Coil rewinding and discharge
Slitting line running at a customer plant

Slitting is step one – plan the whole flow

Strips feed your cut-to-length lines. Tell us your coil sizes and monthly volume – we plan slitting, storage and CTL as one system.

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Nantong Sirui Engineering Co., Ltd.(南通思瑞机器制造有限公司)
Unified Social Credit Code: 91320682780276103D · Manufacturing since 1997 · incorporated 2005
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