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Precision Slitting Separators Factory and Suppliers in China for Steel Coil Lines

Looking for high-precision slitting separators? As leading China suppliers and a professional factory, we provide durable separator discs and wheels to prevent strip tangling and scratches, ensuring superior edge quality for steel coil slitting lines.

Product Details

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Product Details

Product Overview

Slitting Separators, also known as separator discs or wheels, are critical precision components engineered for installation on the top and bottom knife shafts of high-performance steel coil slitting lines. These components serve as the primary guidance system, ensuring that slit strips remain isolated and properly aligned during the high-speed recoiling process.

By preventing contact, tangling, and surface scratching, our slitting separators guarantee superior edge quality and dimensional stability. Whether processing cold-rolled steel, hot-rolled steel, aluminum, or stainless steel, these separators are essential for maintaining high product yields and ensuring a professional, tight-wound finish for every coil.

Detailed Parameters

Material Options	Tool steel (Cr12MoV, D2), H13, Alloy steel, Stainless steel, Nylon, Polyurethane-coated	Typical Hardness	HRC 50–60 (Depending on material and application)
Diameter Range	φ100 mm to φ300 mm (Customizable)	Thickness Range	5 mm to 30 mm (Customized based on slit pitch)
Surface Treatment	Mirror polish, Nitriding, Plating, Rubber coating	Available Types	Solid wheels, Rubber-coated, Bearing-integrated, Tapered wheels
Concentricity	Tolerance ≤ 0.01 mm	Surface Roughness	Ra ≤ 0.2 μm
Coating Options	Polyurethane, Rubber (60–90 Shore A)	Application	Cold-rolled, Hot-rolled, Stainless steel, Aluminum slitting lines

Key Advantages

Strip Separation

Effectively prevents overlapping and tangling of slit strips, eliminating rubbing during high-speed line operation.

Precision Guiding

Guides strips along an accurate path to ensure neat edges and perfect alignment during the recoiling phase.

Material Support

Provides critical physical support for thin or soft materials like aluminum, preventing sagging and vibration.

Surface Protection

Rubber-coated options eliminate scratches and dents, ensuring a flawless surface finish for sensitive metals.

Enhanced Yield

Maintains consistent strip width and uniform coil tension, significantly increasing overall product yield.

Custom Engineering

Available in non-standard sizes with special tapered edges or anti-slip grooves for specific process needs.

Product Gallery

Management Platforms

Material Control

Rigorous selection of tool steels (D2, Cr12MoV) to ensure maximum wear resistance.

CNC Precision

All lathes and key grooves are positioned and milled by CNC for ultimate concentricity.

Heat Treatment

Advanced quenching and nitriding processes guarantee consistent hardness across the disc.

Quality Assurance

Dedicated quality department checks raw materials and final tolerances before shipment.

Logistics Support

Professional packaging to prevent corrosion and damage during international transit.

Technical Service

Lifetime online technical support and professional installation guidance provided.

Investment Return Comparison

Performance Metric	Standard Separators	Our Premium Separators
Service Life	Short (Frequent Wear)	Extended (High Hardness/Nitrided)
Edge Quality	Occasional Burrs/Scratches	Mirror-Smooth/Precision Edges
Material Waste	Higher due to tangling	Minimized via precise guiding
Setup Time	Variable Fitting	Rapid Installation (CNC Precision)
Maintenance	High Frequency Replacement	Low Frequency / Durable Coating

Frequently Asked Questions

Q: Which material is best for slitting aluminum or stainless steel?

For scratch-sensitive materials like aluminum or stainless steel, we highly recommend rubber-coated or polyurethane separators to protect the surface finish.

Q: How often should slitting separators be replaced?

Replacement depends on material hardness and volume. We recommend regular wear inspections, especially for coated separators, to replace aging rubber before it affects quality.

Q: Can you provide separators with non-standard diameters?

Yes, we offer fully customized designs. We can manufacture separator discs based on your specific shaft size and line specifications, typically ranging from φ100mm to φ300mm.

Q: What is the purpose of nitriding the surface of a separator?

Nitriding increases the surface hardness (HRC 58±2) and improves wear and corrosion resistance, making the separators ideal for heavy-duty industrial use.

Q: How do I ensure the correct installation of separator discs?

Ensure the disc is perfectly perpendicular to the knife and fits tightly on the shaft without any play. Proper spacing relative to the slit strip width is also critical.

Q: Do these separators work with both hot-rolled and cold-rolled lines?

Absolutely. Our product range includes various materials and coatings designed specifically to handle the different requirements of both hot-rolled and cold-rolled steel processing.

Ready to Optimize Your Slitting Line Precision?

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