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High-End VCB Vacuum Low Pressure Carburizing Furnace Supplier from China - Expert Factory for Oil Quenching Solutions

Introducing the VCB series vacuum low pressure carburizing furnace, a premium solution in high-end heat treatment technology. As a leading manufacturer in China, we are dedicated to providing superior equipment that meets the demands of various industries, including aerospace, automotive manufacturing, and precision tooling, Our advanced furnace utilizes a vacuum and low pressure environment, where acetylene gas decomposes active carbon atoms. By precisely controlling temperature, flow, and pressure, we achieve surface carburizing, resulting in a uniform hardened layer. This technology is particularly effective for complex geometric parts, ensuring even cementing layers and resolving the dead angle issues associated with traditional carburizing methods, The VCB series furnace offers multiple functionalities, including vacuum carburizing oil quenching, vacuum carbonitriding, solution treatment, and vacuum bright quenching. With an optional gas cooling capability of up to 1.99 Bar, this machine enhances the hardness, wear resistance, and fatigue strength of metal surfaces, As a trusted supplier and factory in China, we are committed to helping you elevate your production capabilities with our state-of-the-art carburizing technology

Product Details

characteristic

Friendly to the environment, no carbon monoxide/carbon dioxide emissions, clean working environment, no open fire, oil smoke, etc., in line with the development direction of green manufacturing

Heating and carburizing in vacuum and low pressure environment, no intergranular oxidation, completely avoid oxidation, decarburization, with the best parts surface, beautiful and bright parts after treatment

For parts dealing with complex geometric shapes, high-demand carburizing and carbonitriding can be achieved, and the carburizing uniformity of the same furnace parts is high

Vacuum quenching oil, equipped with efficient oil mixing, diversion system, heat exchanger and heater, to ensure quenching stability, cooling rate is fast, to meet the martensitic transformation needs of materials

Allow carburizing at higher temperature, significantly shorten the processing time, less air consumption, low production and operating costs, especially suitable for deep carburizing or stainless steel and other materials such as vacuum carburizing

With online char processing function, no need to interrupt the production process, low maintenance frequency, effectively ensure the continuity and stability of production

The equipment can be convenient to start and stop the furnace according to the actual demand, and the flexibility is very high, suitable for multi-variety and small-batch production

Integrated PLC, with program controller, touch screen, recorder and other real-time monitoring furnace vacuum degree, temperature, gas flow, pressure and other parameters, support remote fault diagnosis and process tracing

Common specifications

Model number	VCB-200	VCB-600	VCB-800
Effective working area dimension: Width × height × length (mm)	400×450×600	660×650×1200	760×700×1220
Temperature	Maximum 1100℃/ normal operating temperature 750~1050℃
Oil tank capacity (L)	2700	6500	7700
Handling weight approx. (Kg)	200	600	800
Installed power (KW)	110	210	240

※ Effective size includes tray height

Comparison between vacuum carburizing and gas carburizing

Parameter	Vacuum carburizing	Gas carburizing
Quality	High concentration carburizing is easy No grain boundary oxidation and decarburization The surface of the workpiece with complex geometry is easy to carburize Stainless steel can be carburized	High concentration carburizing is difficult Grain boundary oxidation presence (~ 5 nm) It is difficult to carburize the inner surface of the hole Stainless steel carburizing is difficult
Cost	Increased productivity through high temperature and short time treatment (~ 1100℃) Intermittent operation Vacuum heat insulation energy saving	950℃ is the limit During intermittent operation, the furnace temperature and gas are required to be maintained The furnace body continues to release heat
Environment	Zero CO2 production Good working environment No large amount of oil smoke emission	Produce a lot of CO2 High-temperature operation There are a lot of oil smoke emissions
Security	Vacuum and no open flame, so safe	Compared with vacuum carburizing, it is necessary to pay attention to operating procedures
Work efficiency	Carburizing time is 1/3 shorter than gas carburizing No atmosphere pre-regulation, avoid time waste No particularly skilled operators required	Low temperature and long carburizing time The atmosphere needs to be established in advance Skilled and experienced operators are required

SUMMARY:

VCB vacuum low-pressure carburizing furnace has become the core equipment of heat treatment in high-end manufacturing industry with its advantages of high precision, low pollution and intelligence. Its technological development is evolving towards higher efficiency, wider material compatibility and deep AI integration, promoting industrial manufacturing to green and precision.

Vacuum carburizing vs gas carburizing comparison chart

Frequently Asked Questions (FAQ)

Q:What makes vacuum carburizing more environmentally friendly than gas carburizing?

Vacuum carburizing features zero CO2 and carbon monoxide emissions, produces no open flames, and eliminates large volumes of oil smoke, making it fully compliant with green manufacturing standards.

Q:How does VCB vacuum carburizing improve workpiece surface quality?

By heating and carburizing in a vacuum and low-pressure environment, it completely avoids oxidation and decarburization. This prevents intergranular oxidation, leaving workpiece surfaces clean, bright, and highly precise.

Q:Can the VCB furnace handle complex geometric workpieces?

Yes, the VCB furnace excels at processing complex geometries. It achieves high-demand carburizing and carbonitriding while maintaining excellent carburizing uniformity across all parts in the same furnace load.

Q:What models of VCB vacuum carburizing furnaces are available?

We offer three standard models: VCB-200 (200kg capacity, 110KW), VCB-600 (600kg capacity, 210KW), and VCB-800 (800kg capacity, 240KW) to support different production volume demands.

Q:Why is vacuum carburizing more cost-effective and efficient than gas carburizing?

Vacuum carburizing supports higher operating temperatures (up to 1100°C), which cuts overall processing time by approximately 1/3. It also eliminates atmosphere pre-regulation, minimizing gas consumption and energy waste during intermittent operations.

Q:Is the VCB furnace suitable for small-batch and multi-variety production?

Absolutely. The VCB furnace provides high operational flexibility, allowing users to start and stop the furnace easily based on real-time production needs, making it ideal for flexible, small-batch manufacturing.