Pit Type Gas Nitriding Furnace for Gears, Shafts & Molds

• Controlled Gas Nitriding Atmosphere – Designed for controlled gas nitriding treatment of steel components to achieve a hardened surface layer.

• Uniform Temperature Distribution – Furnace structure and circulation system are designed to provide stable and uniform heating throughout the working zone.

• Pit-Type Vertical Design – Suitable for long or vertically loaded workpieces while making efficient use of workshop space.

• Improved Surface Performance – Nitriding can improve surface hardness, wear resistance and fatigue strength of suitable steel components.

• Wide Range of Applications – Suitable for gears, shafts, molds, dies and various mechanical components requiring surface hardening.

• Customizable Configuration – Working size, heating power, loading capacity and process configuration can be designed according to the customer's workpiece and production requirements.

The following specifications are based on the reference furnace shown on this page. Other working sizes, power ratings and configurations are available according to the customer's workpiece and production requirements.

This gas nitriding furnace is suitable for surface treatment of steel components that require improved hardness, wear resistance and fatigue strength. Typical applications include:

• Gears & Transmission Parts – For wear-resistant surface treatment of gears and transmission components.
• Shafts & Mechanical Parts – Suitable for shafts, spindles and other mechanical components requiring a hardened surface.
• Molds & Dies – Helps improve surface wear resistance and service life of suitable molds and dies.
• Industrial Steel Components – Suitable for various steel parts requiring controlled gas nitriding treatment.

The pit type gas nitriding furnace adopts a vertical furnace structure designed for industrial gas nitriding processes. The furnace system integrates the heating chamber, gas circulation system, process gas piping, furnace cover lifting mechanism and control system to support stable heat treatment operation.

The internal furnace structure and actual equipment shown below are from the real Rexin furnace featured on this page.

The pit type gas nitriding furnace requires a prepared foundation pit for installation. The foundation dimensions and utility connections should be confirmed according to the final furnace model and site conditions before installation.

For the reference model RN-850×1600 shown on this page, the foundation drawing indicates a pit size of 3200 × 3200 × 2100 mm. Cooling water, compressed air, electrical power and grounding connections should be prepared according to the approved installation drawing.

Every heat treatment application is different. Rexin can customize the pit type gas nitriding furnace according to your workpiece, production capacity and process requirements.

To recommend a suitable furnace configuration, please provide:

• Workpiece: Material and product type
• Workpiece Size: Maximum diameter, length or overall dimensions
• Loading Capacity: Required load per batch (kg)
• Nitriding Requirements: Required case depth, surface hardness or process requirements, if available
• Production Requirement: Batches per day or expected production capacity
• Power Supply: Voltage, frequency and phase

Based on this information, our engineering team can recommend the appropriate furnace size, heating power and process configuration for your application.

Rexin focuses on industrial heat treatment furnace design and manufacturing, providing customized furnace solutions according to different workpieces and production requirements.

• Customized Engineering Solutions
Furnace working size, heating power, loading configuration and process system can be designed according to the customer's actual application.

• Real Furnace Manufacturing
From furnace structure and heating system to piping, electrical control and final assembly, Rexin provides complete industrial furnace manufacturing solutions.

• Application-Oriented Design
Furnace configuration is selected according to the workpiece material, dimensions, loading capacity and required heat treatment process rather than using a one-size-fits-all solution.

• Technical & Installation Support
We can provide technical documentation, foundation drawings and installation guidance according to the final equipment configuration.

• International Project Support
Rexin supports overseas industrial furnace projects with technical documentation, equipment configuration and export-related coordination.

Rexin has established certified management systems covering quality, environmental management, and occupational health and safety for the production of heat treatment equipment (industrial electric furnaces).

ISO 9001:2015 – Quality Management System
Supporting standardized quality management in the production of heat treatment equipment.

ISO 14001:2015 – Environmental Management System
Supporting environmental management activities related to industrial furnace production.

ISO 45001:2018 – Occupational Health & Safety Management System
Supporting occupational health and safety management throughout production activities.

These certifications demonstrate Rexin's commitment to standardized management and responsible industrial furnace manufacturing.

Q1: What parts can be treated in this gas nitriding furnace?
This furnace is suitable for gas nitriding of gears, shafts, molds, dies and other suitable steel components requiring improved surface hardness, wear resistance and fatigue strength.

Q2: Is this a vacuum nitriding furnace?
No. This model is a non-vacuum pit type gas nitriding furnace. If your project has different atmosphere or process requirements, please provide the required process specifications for evaluation.

Q3: Can the furnace size be customized?
Yes. The effective working size and furnace configuration can be customized according to the dimensions, loading method and production requirements of your workpieces.

Q4: Does the furnace require a foundation pit?
Yes. This pit type furnace requires a prepared foundation pit. For the reference RN-850×1600 configuration shown on this page, the foundation drawing specifies a pit of 3200 × 3200 × 2100 mm. Final foundation requirements will depend on the ordered furnace configuration.

Q5: What information should I provide for a quotation?
Please provide your workpiece material, maximum dimensions, loading capacity per batch, nitriding requirements, expected production capacity and local power supply. Photos or drawings of the workpiece are also helpful.

Q6: Can Rexin provide installation drawings and technical support?
Yes. Rexin can provide relevant technical documentation, foundation drawings and installation guidance according to the final equipment configuration.