RQ3-140-9 Pit Type Gas Carburizing Furnace | High-Precision Heat Treatment & Carbo-Nitriding Solution
A pit type gas carburizing furnace is a vertical industrial furnace designed for the carburizing and carbo-nitriding of steel parts, offering precise temperature control, carbon potential management, and atmosphere uniformity. The RQ3-140-9 model is our latest high-performance solution for automotive, aerospace, machinery, and tool manufacturing industries.
Applications of Pit Type Gas Carburizing Furnace
The RQ3-140-9 pit furnace is widely used for:
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Carburizing and carbo-nitriding carbon steel components.
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Non-oxidation heating and annealing below 950℃.
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Processing small to medium parts and long shafts.
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Delivering energy-efficient heat treatment for gears, tools, and mechanical shafts.
With its stainless steel muffle tank and forced atmosphere circulation, the furnace guarantees consistent metallurgical results and extended equipment life.
Key Technical Specifications
| Item |
Specification |
| Rated Power |
140 kW |
| Rated Temperature |
1000℃ |
| Working Size |
Ø1000 × 2200 mm |
| Temperature Uniformity |
≤±5℃ |
| Control Accuracy |
≤±1℃ |
| Temperature Control Zones |
2 |
| Muffle Tank Material |
310S stainless steel, 10mm |
| Heating Element |
0Cr21AL6Nb |
| Hot Air Fan |
3 kW water-cooled |
| Furnace Lining |
300 mm high alumina fiber |
| Control System |
Siemens PLC + Shimaden controller |
Advanced Features & Benefits
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Durable Furnace Shell – High-strength steel plate & channel steel design.
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Efficient Insulation – 300 mm alumina refractory fiber for energy savings.
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Reliable Heating Elements – Corrugated alloy strips ensure stable heating.
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Precision Muffle Tank – 310S stainless steel with graphite-asbestos sealing.
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Forced Gas Circulation – Powerful water-cooled fan for uniform treatment.
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Automated Atmosphere Control – Siemens PLC, oxygen probe, and touch screen system.
Intelligent Control System
The fully automated carbon potential and temperature control system provides:
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±1℃ temperature accuracy.
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±0.02% CP carbon potential stability.
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Historical data recording & alarm tracking.
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Automatic oxygen probe cleaning system.
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Real-time monitoring via touch screen interface.
This ensures repeatable, reliable results across all heat treatment processes.
Warranty & After-Sales Service
The RQ3-140-9 carburizing furnace includes:
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13-month warranty from shipment date.
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Free repair/replacement for manufacturing defects.
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Lifetime technical support and fast spare parts supply.
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On-site training for operators and process engineers.
Why Choose Our Carburizing Furnace?
As a leading manufacturer of industrial heat treatment furnaces, our company integrates international standards, advanced Japanese Shimaden controllers, Siemens PLC automation, and premium refractory materials. We provide customized furnace solutions, along with professional pre-sales consultation, installation guidance, and responsive after-sales service.
With the RQ3-140-9 Pit Type Gas Carburizing Furnace, industries can achieve higher efficiency, lower energy consumption, and superior metallurgical quality.
Frequently Asked Questions (FAQ)
Q1: What is a pit type gas carburizing furnace?
A pit type gas carburizing furnace is a vertical furnace designed for carburizing and carbo-nitriding steel components, ensuring deep case hardening and enhanced wear resistance.
Q2: What industries use carburizing furnaces?
They are widely used in automotive, aerospace, machinery manufacturing, and toolmaking, especially for gears, shafts, and high-strength components.
Q3: How does automatic carbon potential control work?
Using an oxygen probe and Siemens PLC system, the furnace monitors and adjusts the carbon atmosphere automatically, keeping the process stable and efficient.
Call to Action
Looking for a high-efficiency, reliable carburizing furnace?
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