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In the global metal processing industry, steel coil slitting is a fundamental operation that converts wide steel coils into multiple narrower coils for further manufacturing. It’s an essential process used across construction, automotive, electrical, and machinery industries.
Shijiazhuang Faith Machinery Co., Ltd., located in Hebei, China, is a professional manufacturer specializing in steel coil slitting lines. With years of experience in design and automation, Faith Machinery delivers efficient and customizable solutions to meet the high demands of precision and productivity in today’s steel processing plants.
Steel coil slitting is the process of cutting a master coil of steel into several narrower coils, each with consistent width and edge quality. The operation is performed by a coil slitting line, which uncoils, slits, and recoils the material in one continuous process.
The goal is to prepare steel strips of required widths for downstream operations such as tube making, roll forming, stamping, or fabrication. This process optimizes material usage, minimizes waste, and increases production flexibility.
The steel coil slitting line consists of multiple synchronized stages that ensure smooth and accurate cutting from start to finish.
The master coil is placed on a hydraulic uncoiler. The coil is unwound and fed into the line at controlled speed.
The strip passes through pinch rolls and leveling units to remove curvature and ensure even feeding into the slitting section.
The strip enters a slitting head equipped with rotary knives. These knives are spaced according to the desired strip widths, cutting the coil longitudinally.
Tension devices maintain uniform pressure across all strips to avoid edge distortion or telescoping during recoiling.
Each slit strip is rewound into new coils of specific widths, ready for packaging or further processing.
| Component | Function | Key Features |
|---|---|---|
| Uncoiler | Holds and releases the steel coil | Hydraulic expansion type; capacity up to 35 tons |
| Leveler & Feeder | Ensures smooth material feeding | Servo control with automatic thickness adjustment |
| Slitting Head | Performs longitudinal cutting | High-speed rotary knives made of SKD11 or H13 |
| Tension Stand | Stabilizes strip tension | Pneumatic brake with feedback control |
| Recoiler | Rewinds slit strips into smaller coils | Hydraulic or motor-driven recoiling system |
| Scrap Winder | Collects edge trims | Automatic edge trimming and rewinding |
| Electrical Cabinet | Manages all system operations | Siemens PLC + HMI touchscreen interface |
| Specification | Standard Range |
|---|---|
| Material | Hot Rolled, Cold Rolled, Galvanized, Stainless Steel |
| Coil Width | 500–2000 mm |
| Coil Thickness | 0.2–6.0 mm |
| Coil Weight | Up to 35 Tons |
| Line Speed | 60–200 m/min |
| Slitting Accuracy | ±0.1 mm |
| Recoiler Inner Diameter | 508 / 610 mm |
| Power Supply | 380V / 50Hz / 3Phase |
Custom options are available to meet different coil types and productivity targets.
Faith Machinery’s slitting lines achieve ±0.1 mm precision through servo-driven feed systems and advanced tension control, guaranteeing clean, consistent cuts.
Our slitting equipment processes hot rolled steel, cold rolled steel, stainless steel, galvanized steel, and color-coated steel, providing broad industrial versatility.
Each line uses Siemens PLC and HMI control, integrating automatic coil centering, knife positioning, and line speed synchronization.
Intelligent drive systems reduce energy consumption by up to 15%, while automated coil handling decreases manual workload.
The heavy-duty frame, precision-machined rollers, and anti-vibration design ensure continuous high-speed operation without alignment loss.
Every project is designed according to coil size, strip width, and plant layout — delivering an optimized production line for your specific needs.
Steel coil slitting is widely used in different manufacturing sectors that require narrow strip coils as raw material:
Steel Service Centers – For processing and resale of slit coils.
Construction – For roofing, wall cladding, and steel framing materials.
Automotive – For body panels, reinforcing parts, and chassis components.
Electrical Equipment – For transformers, cabinets, and enclosures.
Tube and Pipe Production – For strip feed preparation.
Home Appliances – For shells, frames, and structural parts.
Each application benefits from the high precision, speed, and repeatability of Faith Machinery’s slitting systems.
The slitting head is the heart of any steel slitting line. Faith Machinery uses quick-change knife assemblies for fast setup and precise spacing between blades.
Knife materials: SKD11, D2, or tungsten carbide for extended service life.
Hydraulic locking and adjustment for repeatable accuracy.
Micrometric gap control to minimize burrs and rough edges.
Paired with double tension control systems, this ensures each slit coil has perfect edge quality and uniform rewinding tension.
Faith Machinery integrates advanced automation for smart operation and production monitoring:
Automatic coil edge guiding
Real-time speed and tension synchronization
Data storage for multiple coil setups
Error diagnostics and alarms
Remote control and monitoring capabilities
This intelligent control architecture ensures safer, more efficient coil slitting operations.
Faith Machinery is a proven leader in coil processing machinery manufacturing in China, focusing on precision, innovation, and service.
The company operates advanced CNC machining centers, laser cutting systems, and dynamic balance testing equipment.
All machines are manufactured under ISO9001 certification, ensuring consistency and durability.
Faith Machinery has exported slitting and cut to length lines to over 40 countries, including Southeast Asia, Europe, the Middle East, and South America.
From project consulting to installation and training, Faith Machinery provides turnkey solutions for every customer.
Faith Machinery offers a complete lifecycle service:
Pre-Sales Consultation – Technical analysis and layout planning.
Manufacturing and Testing – Full machine inspection before shipment.
On-Site Installation – Professional engineers available worldwide.
Operator Training – Safety and performance training included.
After-Sales Service – Lifetime technical support and spare parts supply.
Our machines can handle hot rolled, cold rolled, galvanized, and stainless steel with various surface finishes.
The typical slitting accuracy is ±0.1 mm, depending on material thickness and line speed.
Yes, the slitting head can be configured for different strip numbers and widths.
Delivery usually takes 90–120 days, depending on project complexity.
Yes, Faith Machinery provides global installation, commissioning, and training services.
Each slitting line includes a 12-month warranty and lifelong service support.
With the rising demand for automated and high-efficiency steel fabrication, steel coil slitting technology continues to evolve.
Modern manufacturers require systems that combine speed, accuracy, energy savings, and digital control — and Faith Machinery’s designs meet exactly these requirements.
By integrating advanced automation, modular layouts, and precision knife systems, Faith Machinery remains a trusted supplier for cost-effective, high-performance slitting solutions worldwide.
The steel coil slitting process is a vital step in today’s metal fabrication supply chain. Investing in a reliable, precision-built slitting line ensures higher productivity, minimal waste, and long-term profitability.
Shijiazhuang Faith Machinery Co., Ltd. delivers world-class steel coil slitting lines tailored to your specific materials, thickness, and production targets. With advanced technology, proven quality, and professional after-sales support, Faith Machinery stands as your dependable partner in coil processing innovation.
Contact Information
Shijiazhuang Faith Machinery Co., Ltd.
Tel: +86 15350593960
Email: crystal@faith-machinery.com
Address: Shijiazhuang, Hebei, China
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