Metal Coil Slitting & Cutting Line Manufacturer

Metal Coil Slitting &
Cutting Lines, Custom-Built

Non-standard and special metallurgical finishing equipment — engineered around your material, width and capacity, and built in our own workshop in Kunshan, China.

PRACTICAL GOOD DESIGN AFFORDABLE FINE QUALITY SERIOUSLY ENGINEERED
0.1 – 25 mmThickness coverage
2500 mmMax. coil width
40,000 kgMax. coil weight
up to 300 m/minLine speed
Slitting line built by QDY Industrial
Slitting line assembled and test-run on our workshop floor before shipment.
① Slitting Line ② Cut-to-Length Line ③ CNC Precision Leveler ④ Flying Shear Unit ⑤ Tension Leveler ⑥ Rewind / Unwind ⑦ Bright Annealing Line ⑧ Color Coating Line
About Us

Kunshan Qindaoyuan Industrial Materials Co., Ltd.

A high-tech enterprise integrating R&D, design and production, specializing in non-standard and special metallurgical finishing equipment. Building on the introduction and absorption of advanced foreign technology, we have successfully developed a series of products — metal coil slitting (longitudinal shear), cut-to-length (cross shear), flying shear, and combined slitting-cut-to-length lines — widely applied and praised by users. Some of these products lead in China; some replace imported equipment.

With exquisite technology, reliable product quality and complete after-sales service, the company has earned wide recognition across more than ten years of development. First-class hardware and a united, professional team let us serve metal processing enterprises at home and abroad with quality finishing equipment and technical service.

道勤志远 · 创新求存 Business philosophy: pursue far-reaching goals with diligence; survive and thrive through innovation.
Quality policy: strengthen quality awareness, continuously improve the system, dedicate fine design, deliver excellent service.
In-House Manufacturing

Key components machined in-house — not outsourced

5-axis NC machining center
5-Axis Machining Center五轴加工中心
6-axis machining center
6-Axis Machining Center六轴加工中心
CNC machining center
CNC Machining CenterCNC 加工中心
Gear hobbing machine
Gear Hobbing Machine滚齿机
10+ yrsof engineering
8product lines
0.1–25mm thickness range
5-axisCNC in-house
Product Lines

Eight Product Lines金属带材剪切生产线

From coil to finished strip or sheet — slitting, leveling, cutting, tension leveling, annealing and coating. All parameters are determined according to customer requirements.

Slitting line
Belt tension machine Automatic separation shaft device Light-gauge slitting line
Slitting line, belt tension machine and automatic separation shaft device — from our product catalogue.
Product 01

Slitting Line纵剪分条机组

High-performance PLC programmable control — after manual threading, the line runs fully automatically.

  • Processing: all components specially treated; core bearings from NSK and SKF; key parts CNC-machined for precision.
  • Assembly: no heavy-hitting assembly, no defective assembly — built by experienced engineers.
  • Composition: decoiler system, front leveling device, side correcting device, main slitting machine, scrap winder, tension system, recoiler, unloading coil cart, turnstile (optional) — plus hydraulic, pneumatic and electrical control systems.
  • Coverage: light and heavy gauge from 0.1 to 10 mm thickness, coil width up to 2200 mm, line speed 50–230 m/min.
Line composition (heavy gauge)
Backup saddleLoading coil carUncoilerUnwinding & feeding devicePinch rollerLevelerShear deviceFront loop pitGuiding deviceSlitter headScrap rewinderRear loop pitTension stationSub-coil shearRecoilerPress armSupport armExit coil carFour-arm turnstile
Belt tension machine

Belt Tension Machine

Uses the difference in internal and external friction coefficients of special belts: belt and strip stay in synchronized contact — scratches are eliminated, and tension is distributed evenly across every strip, so recoiled coils meet density and flatness requirements.

Automatic separation shaft device

Automatic Separation Shaft Device

Input the data and the separator discs position themselves automatically — feeding time is reduced and work efficiency greatly increased.

Light Gauge高精密型
Coil weightMax. 30,000 kg
Strip widthMax. 2100 mm
Strip thickness0.1 – 3.2 mm
Line speedup to 300 m/min
Stainless steel, aluminium, copper, carbon steel, cold rolled, hot rolled & surface treated coil (galvanized, color coated, etc.)
Medium Gauge中厚板型
Coil weightMax. 40,000 kg
Strip widthMax. 2100 mm
Strip thickness2 – 8 mm
Line speedup to 120 m/min
Stainless steel, carbon steel, cold rolled, hot rolled & surface treated coil
Heavy Gauge重型
Coil weightMax. 40,000 kg
Strip widthMax. 2500 mm
Strip thickness4 – 16 mm
Line speedup to 60 m/min
Hot-rolled coil, automobile frame plate, high carbon steel, manganese steel, etc.

Note: the above standards are for reference only — parameters are determined according to customer requirements.

Heavy-gauge slitting line
Double Slitter LineTwo slitter heads with quick changeover for multi-spec production.
Heavy-Gauge LineRigid frames and high-torque drives for thick plate.
Belt Bridle LineBelt tension station for surface-critical strip.
Mini Slitting LineCompact footprint for narrow coils.
ToolingSlitter heads, separator discs, knives and spares.
Leveling cut-to-length line
CTL line detail CTL line detail Shear section
Leveling cut-to-length line and shear section — from our product catalogue.
Product 02

Leveling Cut-to-Length Unit整平横切机组

Efficient fixed-length cutting of steel plates: various coil materials are uncoiled, leveled and cut to sheets of different sizes — an indispensable processing line for the metal sheet industry.

  • Applicable to containers, machinery manufacturing, home appliances, automotive, stainless steel products and light industry.
  • High-performance PLC control — fully automatic after threading.
  • Composition: feed-in coil car, decoiling device, flattening device, loop, measuring (fixed-length) device, shear, transporting device and stacking device.
  • Reliable hydraulic and pneumatic systems; structure with high strength and rigidity.
Light Gauge高精密型
Coil weightMax. 30,000 kg
Strip widthMax. 2100 mm
Strip thickness0.1 – 3.2 mm
Line speedup to 60 m/min
Stainless steel, aluminium, copper, carbon steel, CR, HR & surface treated coil
Medium Gauge中厚板型
Coil weightMax. 40,000 kg
Strip widthMax. 2500 mm
Strip thickness2 – 8 mm
Line speedup to 60 m/min
Stainless steel, carbon steel, CR, HR & surface treated coil
Heavy Gauge重型
Coil weightMax. 40,000 kg
Strip widthMax. 2500 mm
Strip thickness6 – 25 mm
Line speedup to 30 m/min
Hot-rolled coil, automobile frame plate, high carbon steel, manganese steel, etc.

Note: the above standards are for reference only — parameters are determined according to customer requirements.

CNC high precision leveler
Leveler detail Leveler detail Leveling section in workshop
CNC high precision leveler — catalogue and workshop.
Product 03

CNC High Precision LevelerCNC 高精密整平机

  • Cartridge leveler change system — cassette extraction for fast maintenance.
  • 19 precision leveling rolls, 6-HI structure.
  • High-rigidity back-up rolls eliminate internal stress and correct shape flaws (center buckle, wavy edges).
  • APC + AFC dual control: position control loop and pressure loop enable constant roll gap or constant pressure — leveling rolls lower automatically to a fixed position.
Leveling flying shear unit
Flying shear detail Flying shear detail Operator control station
Leveling flying shear unit and operator station.
Product 04

Leveling Flying Shear Unit整平飞剪机组

  • Cutting accuracy ± 0.3 mm length tolerance.
  • Up to 160 cuts per minute.
  • Special shear motion control mode ensures smooth mechanical operation and energy saving.
Reference specifications
Light: 0.1–3.2 mm · 80/90/100 m/min Medium: 2–8 mm · up to 60 m/min Max. coil weight 40,000 kg Max. width 2500 mm
Tension straightening machine
Product 05

Tension Straightening Machine

拉弯矫直机

Stretch-bend leveling completely eliminates wavy edges, wavy shapes, scoop bend and light sickle bend — greatly improving strip flatness. It also reduces material anisotropy: in deep-drawn low-carbon sheet, differing longitudinal/transverse yield limits cause uneven extension and skirt-edge defects; tension leveling greatly improves this and cuts scrap rates.

DetailDetail
Rewinding and unwinding machine
Product 06

Coil Rewinding & Unwinding Machine

收卷 / 放卷设备

Companion equipment for coil surface processing lines — HL/NO.4 polishing lines, 8K mirror lines, galvanizing lines and other large production lines. Constant-tension mode ensures coils never collapse or loosen during production; single-side alignment or centering rewind available.

DetailDetail
Bright annealing line
Product 07

Bright Annealing Line

光亮退火炉
  • Eliminates work hardening — satisfactory metallographic structure.
  • Oxidation-free, bright, corrosion-resistant surface.
  • Retains rolled-surface finish — no post-processing needed.
  • Special rolled pattern surfaces can be developed.
  • No pollution compared with common pickling.
  • Enables control of strip shape.
DetailDetail
Metal coil color coating line
Product 08

Metal Coil Color-Coating Line

金属卷带彩涂线

Color-coated board is today's ultimate deep-processing product for steel sheet — lightweight, attractive and corrosion-resistant, widely used in construction, light industry and home appliances.

Production flow
Uncoiling→ Pre-processing→ Welding→ Entry loop→ Pre-painting→ Baking→ Inspection→ Fine coating→ Baking→ Exit loop→ Embossed film→ Recoiling
DetailDetail
Automation & Safety

A 20–40 m Line Is a System, Not a Machine

Coil processing equipment is a large machine, 20–40 m long, with parameters determined by customer requirements. High automation is essential for reducing change time and boosting efficiency and safety.

Central control cabinet and operator station

Fully Automatic Adjustment

The whole line is centrally controlled by PLC; servo-driven feeding system and DC speed controller adjust line speed automatically.

Central Electric Cabinet

PLC centralizes the whole line, with RAM power-failure protection, EEPROM program memory and remote I/O modules.

Safety Protection

Limiter control, infrared interlock control, warning alarm and emergency stop protect operators and material.

Inline Instruments

Tool-axis height display, shear gap meter and tension pressure gauges mounted on each device for precise commissioning.

Regular Machine Capacity

Reference Model Configurations

Regular platforms for slitting and cut-to-length lines. Various configuration options optimize leveling performance, slitting/cutting accuracy and metal surface protection, tailored to the characteristics of your material.

Model (Thk × Width)Coil WeightThicknessWorking WidthThickness (imp.)Width (imp.)
0.1~2 × 6505 T0.1–2 mm600 mm0.0039~5/64 in23 5/8 in
0.3~3 × 90010 T0.3–3 mm800 mm1/64~1/8 in31 1/2 in
0.3~3 × 110015 T0.3–3 mm1000 mm1/64~1/8 in39 3/8 in
0.3~3 × 140020 T0.3–3 mm1300 mm1/64~1/8 in51 3/16 in
0.3~4 × 165025 T0.3–4 mm1600 mm1/64~5/132 in62 63/64 in
0.3~4 × 185030 T0.3–4 mm1800 mm1/64~5/32 in70 55/64 in
1.0~6 × 165025 T1.0–6 mm1600 mm3/64~15/64 in62 63/64 in
1.0~6 × 185030 T1.0–6 mm1800 mm3/64~15/64 in70 55/64 in
2.0~8 × 220035 T2.0–8 mm2000 mm1/8~5/16 in78 47/64 in
2.0~12 × 220035 T2.0–12 mm2000 mm1/8~15/32 in78 47/64 in

Note: the above standards are for reference only — parameters can be determined according to customer requirements.

Applications

Where Our Lines Run

🛠️Pipe & Tube制管
🚗Automotive汽车
🏠Home Appliances家电
⚙️Electric Motors电机
🏗️Profiles型材
Processable materials
Carbon steelStainless steelGalvanized steelCold rolledHot rolledPre-painted steelHigh-tensile steelSilicon steelElectrical steelCopper & brassAluminum alloy
From Our Workshop

Real Machines, Real Floor

Every line is assembled and trial-run before shipment — frames, slitter heads, tension stations, drive trains and controls.

Get a Quote

Tell Us Your Coil — Get a Proposal

Material, thickness, width, coil weight, target output and available floor length help our engineers quote accurately from the first reply.

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