Slitting Line — Manufacturer in India
High-Precision Metal Slitting Solutions for Maximum Productivity
Friend Engineering Works slitting lines are designed to ensure the highest standards of quality and productivity while processing different materials.
Our advanced slitting lines are engineered for precision metal processing, offering superior performance in converting master coils into narrower strips. Built with robust construction and state-of-the-art technology, these machines deliver consistent quality output with minimal material waste. Whether you need to process cold-rolled steel, hot-rolled steel, stainless steel, or aluminum, our slitting lines provide the reliability and accuracy your operations demand.
Slitting Line Specifications
| Specification | Value |
|---|---|
| Coil Width Capacity | Up to 2000mm |
| Thickness Range | 0.10mm - 10mm |
| Maximum Coil Weight | Up to 40 tons |
| Line Speed | High/Medium as per requirement |
| Control System | PLC with HMI Touch Panel |
| Compatible Materials | CR, HR, Stainless Steel, Aluminum |
| Power Supply | 415V, 3 Phase, 50Hz |
| Slitting Accuracy | ±0.1mm |
Key Features
- PLC Controlled Operation: Advanced programmable logic control for precise, automated operation with minimal operator intervention
- Wide Thickness Range: Process materials from 0.3mm to 10mm thickness with consistent precision across all gauges
- High-Speed Processing: Optimized for maximum throughput without compromising on cut quality or edge finish
- Precision Slitting: Rotary slitting technology delivers clean cuts with minimal burr formation
- Heavy-Duty Build: Robust construction designed for 24/7 industrial operation and longevity
- Flexible Configuration: Available in CR and HR configurations to match your specific processing needs
How Does a Slitting Line Work?
A slitting line is a metal processing system that converts wide master coils into multiple narrower strips of precise widths. The process uses rotary circular knives mounted on arbors to make continuous longitudinal cuts through the metal strip. Understanding the slitting process helps you optimize production efficiency and output quality.
- Coil Loading & Decoiling: The master coil is loaded onto the decoiler using a coil car. The hydraulic expansion mandrel grips the coil securely. The strip is then fed into the line at controlled speed.
- Strip Straightening: The material passes through pinch rolls and a straightener to remove coil set and ensure the strip enters the slitter head flat and aligned.
- Precision Slitting: Rotary circular knives mounted on upper and lower arbors cut the strip into multiple narrower widths. Knife overlap and clearance are precisely set for clean, burr-free edges.
- Scrap Collection: Edge trim (scrap) from both sides is separated and wound onto scrap winders for recycling. This ensures only usable strips proceed downstream.
- Tension Control: The slit strips pass through a loop pit or tension station where controlled tension is applied to each strip individually before recoiling.
- Recoiling: Individual strips are wound onto the recoiler with separator discs between each coil. Proper tension ensures tight, uniform coils ready for shipment or further processing.
Types of Slitting Lines We Manufacture
Friend Engineering Works manufactures various slitting line configurations to match different material types, thicknesses, and production requirements. Choose the right type based on your processing needs.
| Type | Capacity | Best For | Features |
|---|---|---|---|
| CR (Cold Rolled) Slitting Line | 0.10mm - 3mm thickness | Precision applications requiring excellent surface finish | High-precision slitter head; Gentle material handling; Surface protection systems; Tight width tolerances ±0.1mm |
| HR (Hot Rolled) Slitting Line | 1.5mm - 10mm thickness | Heavy-gauge materials for structural applications | Heavy-duty construction; High-torque drives; Robust slitter arbors; Scale-resistant components |
| Stainless Steel Slitting Line | 0.3mm - 6mm thickness | SS 304, 316, 430 grades requiring surface protection | Plastic interleaving option; Paper application; Scratch-free handling; Precision edge quality |
| High-Speed Slitting Line | Up to 150 m/min | High-volume production with quick turnaround | Advanced tension control; Quick changeover; Automated operation; Continuous production capability |
Key Components of a Slitting Line
A complete slitting line consists of several precision-engineered components working in synchronization. Each component plays a critical role in achieving consistent output quality.
- Decoiler: Holds and unwinds the master coil at controlled speed. Features hydraulic expansion mandrel and optional coil car for safe loading.
- Pinch Roll Unit: Guides the strip into the line and maintains proper tension between decoiler and slitter head.
- Edge Trimmer (Optional): Removes damaged or irregular coil edges before slitting for consistent strip widths.
- Slitter Head: The heart of the line—precision circular knives on arbors perform the actual cutting. Adjustable for various width combinations.
- Scrap Winder: Collects and winds edge trim into manageable coils for recycling. Automatic ejection for continuous operation.
- Loop Pit / Looper: Creates a buffer zone allowing speed variations between slitting and recoiling. Maintains strip tension.
- Tension Station: Applies individual tension to each slit strip ensuring tight, uniform recoiling.
- Recoiler: Winds finished strips with separator discs. Features expanding drum and provisions for strapping.
Industries Using Slitting Lines
| Industry | Application | Benefits |
|---|---|---|
| Steel Service Centers | Processing master coils into customer-specified widths | Add value through precision slitting, quick delivery to end users |
| Pipe & Tube Manufacturing | Preparing slit strips for ERW and spiral welded tube production | Consistent strip width ensures quality welds and uniform tube dimensions |
| Automotive Industry | Producing strips for stamping, body panels, structural components | High precision and surface quality for critical automotive parts |
| Electrical Laminations | Slitting silicon steel for transformer and motor laminations | Burr-free edges minimize core losses in electrical applications |
| Roll Forming | Preparing strips for roll forming profiles, sections, and shapes | Accurate width ensures consistent formed profiles |
| Appliance Manufacturing | Producing strips for washing machine drums, refrigerator panels | Surface quality and dimensional accuracy for appliance components |
Why Choose Friend Engineering Works Slitting Lines?
Compare our slitting line specifications with industry standards to see the Friend Engineering Works advantage.
| Feature | Friend Engineering Works | Industry Average |
|---|---|---|
| Manufacturing Experience | 35+ years since 1994 | 10-15 years |
| Maximum Coil Weight | Up to 40 tons | 20-25 tons |
| Width Tolerance | ±0.1mm | ±0.3mm |
| Line Speed | Up to 150 m/min | 80-100 m/min |
| After-Sales Support | 24/7 Pan-India coverage | Limited regional |
| Customization | Full custom solutions | Standard models only |
| Installation & Training | Included | Extra cost |
Applications
- Steel Service Centers
- Automotive Industry
- Appliance Manufacturing
- Construction Materials
- Pipe & Tube Manufacturing
- Electrical Panel Manufacturing
Benefits
- Reduce material waste by up to 15%
- Increase production efficiency
- Consistent strip width accuracy
- Lower operating costs
- Quick coil changeover
- Minimal maintenance requirements
Slitting Line Maintenance Guide
Daily
- Inspect slitting knives for wear or damage
- Check lubrication levels
- Clean debris from loop pit
- Verify tension settings
Weekly
- Lubricate all moving parts
- Check belt tensions
- Inspect hydraulic hoses
- Clean separator discs
Monthly
- Verify arbor alignment
- Inspect bearing conditions
- Check electrical connections
- Calibrate measuring systems
Quarterly
- Comprehensive bearing inspection
- Hydraulic system service
- Knife resharpening or replacement
- Full system alignment check
Frequently Asked Questions about Slitting Line
What is a slitting line machine and how does it work?
A slitting line machine is industrial equipment that cuts wide metal coils into narrower strips of precise widths. The process involves five stages: decoiling (unwinding the master coil), straightening (removing coil set), slitting (rotary knives cut the strip), tension control (maintaining proper strip tension), and recoiling (winding finished strips). Friend Engineering Works manufactures slitting lines that can process materials from 0.10mm to 10mm thickness with ±0.1mm accuracy.
What is a slitting machine used for?
A slitting machine (slitting line) is used to cut wide metal coils lengthwise into narrower strips of exact widths. Steel service centers use it to sell customer-specified widths, tube mills use it to prepare skelp for pipe making, and manufacturers use it to produce strip for stamping, roll forming, and laminations. It processes steel, stainless steel, galvanized coil, aluminium, copper and brass.
What is the price of a slitting line machine in India?
Slitting line machine prices in India vary based on capacity, automation level, and specifications. A basic light-gauge slitting line starts from approximately ₹15-25 lakhs, while heavy-gauge automated lines can range from ₹50 lakhs to ₹2 crore. Friend Engineering Works provides customized quotations based on your specific requirements including coil width (up to 2000mm), thickness range, and production speed needs.
Which materials can be processed on a slitting line?
Slitting lines can process various metals including: Cold Rolled (CR) steel, Hot Rolled (HR) steel, Stainless Steel (SS 304, 316, 430), Galvanized steel (GI/GP), Aluminum coils, Copper and brass strips, and Tinplate. Friend Engineering Works designs slitting lines with specific tooling and settings optimized for each material type.
What is the difference between HR and CR slitting lines?
HR (Hot Rolled) slitting lines are designed for thicker, harder materials (typically 1.5mm to 16mm) with heavier construction, more powerful drives, and robust slitter heads. CR (Cold Rolled) slitting lines handle thinner, smoother materials (0.10mm to 3mm) requiring precision components and finer tolerance control. Friend Engineering Works manufactures both HR and CR slitting line configurations.
Who is the best slitting line manufacturer in India?
Friend Engineering Works is a leading slitting line manufacturer in Mumbai, Maharashtra with over 35 years of experience. We are known for precision engineering, customized solutions, comprehensive after-sales support, and competitive pricing. Our slitting lines are installed across India in steel service centers, automotive suppliers, and appliance manufacturers.
What are the main components of a slitting line?
A complete slitting line consists of: Decoiler (unwinds master coil), Entry Pinch Rolls (guides material), Slitter Head with circular knives, Scrap Winder (collects edge trim), Loop Pit or Looper (maintains tension), Separator/Tensioner Unit, and Recoiler (winds finished coils). Friend Engineering Works manufactures all components in-house for quality control.
What maintenance does a slitting line require?
Regular slitting line maintenance includes: daily knife inspection and rotation, weekly lubrication of all moving parts, monthly alignment checks, quarterly comprehensive servicing, and annual overhauls. Proper knife maintenance is critical—slitting knives should be re-sharpened every 200-500 tons of material processed depending on material hardness.
What is the slitting line capacity of Friend Engineering Works machines?
Friend Engineering Works slitting lines offer: Coil width capacity up to 2000mm, thickness range from 0.10mm to 10mm, maximum coil weight up to 40 tons, line speeds as per customer requirement (high/medium), and slitting accuracy of ±0.1mm. Custom specifications are available to match your exact processing needs.