2.4879 + 1.4852 Furnace Rolls Ø170 × 14 × 2837 mm | FH® Alloy

Custom Furnace Rolls Ø170 × 14 × 2837 mm — 2.4879 + 1.4852
FH® Alloy manufactures custom high-temperature furnace rolls for roller hearth furnaces and continuous heat treatment lines.

This furnace roll is produced in a combined 2.4879 + 1.4852 heat-resistant alloy configuration, with a nominal roller size of Ø170 × 14 × 2837 mm. The material allocation, shaft structure, tolerances, and connection details are manufactured according to the approved customer drawing.

🔥 Product Specifications

⚙️ Material Configuration
2.4879, also designated G-NiCr28W, is classified as a heat-resistant casting alloy. 1.4852, designated GX40NiCrSiNb35-26, is classified as a heat-resistant casting steel under EN 10295.

Using two materials in one furnace-roll assembly allows the roller body, transition sections, and shaft components to be selected according to their different temperature, load, and connection requirements.

The exact position of each material is confirmed according to:

• Customer drawings
• Furnace operating temperature
• Furnace atmosphere
• Workpiece load
• Roller speed
• Bearing and drive arrangement
  

🧱 2.4879 +1.4852  Heat-resistant Material

2.4879 Chemical Composition

1.4852 Chemical Composition

🏭 Typical Applications
This furnace roll is suitable for:

• Roller hearth furnaces
• Continuous annealing lines
• Normalizing furnaces
• Quenching and tempering lines
• Steel plate heat treatment furnaces
• Tube and pipe heat treatment lines
• Forging and casting heat treatment equipment
• High-temperature material conveying systems

It can be used to transport steel plates, pipes, bars, forgings, castings, and other metal workpieces through furnace heating and cooling zones.

✅ Customer-Focused Advantages
Long Hollow Roller Construction
The Ø170 mm hollow roller body reduces unnecessary weight while providing the required conveying structure for long-span furnace applications.

Combined Heat-Resistant Materials
The 2.4879 and 1.4852 material combination can be arranged according to the operating requirements of different roller sections.

Customized Shaft Ends
Bearing seats, keyways, coupling sections, grooves, threads, and stepped shaft structures can be machined according to the equipment drawing.

Controlled Roller Alignment
Straightness, coaxiality, concentricity, and radial runout can be inspected to support stable rotation after installation.

Replacement Manufacturing
FH® Alloy can manufacture replacement furnace rollers from original drawings, used samples, equipment dimensions, or measured roller data.

🛠️ Manufacturing Process
The typical production process includes:

1. Drawing and operating-condition review
2. Material confirmation
3. Roller-body casting
4. Shaft and end-component production
5. Rough machining
6. Roller and shaft assembly
7. Controlled welding
8. Straightness correction
9. Final machining
10. Inspection and export packing

The manufacturing route may be adjusted according to the roller structure and technical requirements.

🔍 Quality Inspection
Available inspection items include:

• Chemical composition verification
• Material certificate and heat-number traceability
• Outside diameter and wall-thickness inspection
• Roller-body and overall length measurement
• Shaft and bearing-seat dimensional inspection
• Straightness and radial runout inspection
• Coaxiality and concentricity inspection
• Weld appearance inspection
• Dye penetrant testing
• Ultrasonic testing when applicable
• Final drawing compliance inspection

Inspection requirements should be specified before order confirmation.

📐 Customization Options
FH® Alloy can customize:

• Roller diameter and wall thickness
• Roller-body and overall length
• Material combination
• Shaft diameter and length
• Bearing seats
• Keyways and coupling interfaces
• Transition-section geometry
• Surface machining
• Dimensional tolerances
• Nondestructive testing
• Export packaging

Orders can be arranged for prototypes, replacement parts, small batches, and repeat production.

📋 Information Required for Quotation
Please provide:

• Furnace-roll drawing
• Required material allocation
• Roller dimensions
• Shaft and bearing-seat dimensions
• Operating temperature
• Furnace atmosphere
• Maximum workpiece load
• Roller spacing
• Rotational speed
• Required quantity
• Inspection requirements

When a complete drawing is unavailable, photographs and dimensions of the existing furnace roll can be submitted for evaluation.

🏆 Why Choose FH® Alloy?
FH® Alloy manufactures customized heat-resistant alloy components for industrial furnaces and heat treatment equipment.

Our capabilities include:

• Heat-resistant alloy casting
• Hollow furnace-roll production
• Precision shaft machining
• Welding and assembly
• Straightness correction
• Nondestructive testing
• Custom replacement manufacturing
• Export-standard packaging

Each furnace roll is produced according to the customer’s drawing and actual operating conditions.

📩 Request a Quote
Send FH® Alloy your furnace-roll drawing, operating conditions, required quantity, and inspection standard.
Contact FH® Alloy for technical review and quotation.

❓ FAQ
Q1: Can the shaft structure be customized?
Yes. Shaft diameter, bearing seats, keyways, coupling ends, grooves, threads, and transition sections can be customized.

Q2: Can you manufacture a replacement roller without an original drawing?
Yes. FH® Alloy can evaluate an existing sample, product photographs, equipment dimensions, and measured roller data.

Q3: Can NDT reports be supplied?
Yes. Dye penetrant testing, ultrasonic testing, dimensional reports, and material certificates can be supplied when specified in the order.

Q4: What determines the furnace roll service life?
Service life is affected by operating temperature, furnace atmosphere, workpiece load, roller spacing, rotational speed, thermal cycling, alignment, and maintenance.