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Roller Hearth Furnace
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Product Description:
This is an industrial heating equipment designed specifically for the continuous production of bulk materials. Through precisely arranged drive rollers, the material is transported smoothly and heated uniformly within the furnace. The equipment features a robust structure and is easy to maintain, making it widely used in the annealing, normalizing, and tempering processes of steel, copper, and various metal parts. It is a core piece of equipment for improving production line automation and ensuring product consistency.
Product Advantages
Main Advantages of Roller Hearth Furnaces
Roller hearth furnaces, with their unique continuous conveying structure, offer significant competitive advantages in the heat treatment field:
High Production Continuity and Excellent Efficiency: Thanks to the roller conveyor system, materials can be continuously fed in and out, significantly shortening production cycles and making them ideal for large-scale, high-volume industrial operations.
Precise and Uniform Temperature Control: The furnace typically employs zoned temperature control. As the charge (workpiece) moves at a constant speed through the furnace, each section experiences the exact same heat treatment curve, effectively ensuring consistent product quality.
High Degree of Automation: The conveying mechanism is easily integrated with upstream and downstream production lines (such as pre-forming and post-quenching), reducing manual intervention and labor intensity.
Flexible Structure and Strong Adaptability: The furnace length can be flexibly extended according to process requirements (such as heating time and cooling rate). By adjusting the rotation speed, the residence time of materials in the furnace can be precisely controlled.
Relatively Simple Maintenance: Although the roller shafts are subjected to prolonged heating, modern designs typically use segmented drives or heat-resistant alloy/ceramic rollers. Replacing or repairing individual roller shafts causes minimal disruption to the entire production line.
Product Parameters
|
No. |
Item |
Specification |
|
1 |
Effective Heating Dimensions |
5350×1000×500 mm (L×W×H) |
|
2 |
Front Loading End Length |
1200 mm (Non-heating zone) |
|
3 |
Rear Discharge End Length |
2250 mm |
|
4 |
Rated Temperature |
250℃ |
|
5 |
Total Rated Power |
158.2 KW |
|
(1) Heating Power |
150 KW |
|
|
(2) Soaking Fan Power |
1.5 KW × 4 units = 6 KW |
|
|
(3) Drive Motor Power |
2.2 KW × 1 unit = 2.2 KW |
|
|
6 |
Temperature Control Zones |
4 zones (L=1250 mm/zone) |
|
7 |
Heating Elements |
Heavy-duty High-Temperature Heating Tubes (Operating Temp. up to 450℃) |
|
8 |
Heating Element Connection |
4 tubes in series, Y-connection (Star Connection) |
|
9 |
Heating Element Distribution |
Upper and Lower Heating |
|
10 |
Homogenization Method |
Forced Convection Homogenization via Top-mounted Fans (High-Temperature Zone) |
|
11 |
Overall Dimensions |
8800×1990×2055 mm (L×W×H, see drawing) |
|
12 |
Sealing Method (In/Out Ports) |
Movable Door Sealing |
|
13 |
Furnace Port Height Adjustment |
Electric Adjustment (Range: 0–220 mm) |
|
14 |
Furnace Structure |
Energy-saving Fiber Structure |
|
15 |
Refractory & Insulation Thickness |
230 mm (Full Fiber Filling) |
|
16 |
Surface Temp. at Max. Operating |
≤ Ambient Temp. +20℃ |
|
17 |
Roller Shaft Speed Control |
Frequency Converter Speed Regulation |
|
18 |
Workpiece Handling Method |
Manual (Automatic Option Available upon Custom Design) |
|
19 |
Furnace Weight |
9500 Kg |
|
20 |
System Accuracy Test (SAT) |
≤ ±5℃ |
|
21 |
Temperature Uniformity Survey (TUS) |
≤ ±5℃ |
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