Vacuum Sintering Furnace
Vacuum sintering furnace trusted by Foxconn, Nidec & Furukawa Electric. 850-1000°C, 20-ton pressure, 10-1 torr vacuum. Custom configurations available. Factory direct from thermalmachinery— request a quote.
Product Description
The thermalmachinery Vacuum Sintering Furnace is engineered for the copper powder sintering process in heat pipe manufacturing — the critical step that bonds the copper wick structure to the inner wall of the heat pipe tube. Operating at temperatures up to 950-1000°C with a working pressure of 20 tons and a vacuum degree of 10-1 torr, this furnace delivers the precise thermal and pressure conditions required to produce a high-density, high-conductivity copper sintered wick with consistent quality across every batch.
With an effective chamber size of 400 x 400 x 650mm, water-cooled temperature reduction, and a full HMI touchscreen for pressure and temperature parameter control, the vacuum sintering furnace is designed for production environments where wick quality directly determines heat pipe thermal performance.
Technical Parameters
| Specification | Details |
| Operating Temperature | 850°C (standard) / up to 950-1000°C (sintering cycle) |
| Effective Chamber Size | 400 x 400 x 650 mm |
| Vacuum Degree | 10-1 torr |
| Working Pressure | 20 tons |
| Working Cycle | Approximately 10 hours per furnace |
| Cooling Method | Water-cooled |
| HMI Control | Pressure and temperature parameter adjustment via touchscreen |
| Voltage | 380V x 3-phase |
Why Choose thermalmachinery‘’s Vacuum Sintering Furnace ?
| thermalmachinery Vacuum Sintering Furnace | Typical Market Alternative | |
| Operating temperature | 850-1000°C, fully controllable | Fixed or limited range |
| Working pressure | 20 tons | Often lower or unspecified |
| Vacuum degree | 10-1 torr, stable cycle | Variable, less consistent |
| Cooling method | Water-cooled, faster turnaround | Air-cooled, slower cycle |
| Cycle time | ~10 hours per furnace | Often longer |
| HMI control | Full touchscreen parameter control | Manual or basic PLC |
| Customization | OEM/ODM available | Standard spec only |
| Sample testing | Available before order | Rarely offered |
| After-sales support | Dedicated 5-person maintenance team | Limited |
Where the Vacuum Sintering Furnace Is Used — Applications & Industries
The vacuum sintering furnace is a core piece of equipment in the heat pipe manufacturing process. It is specifically used for the copper powder sintering step — where loose copper powder filled into the heat pipe tube is bonded to the tube wall under high temperature and vacuum pressure to form the capillary wick structure that drives fluid movement in the finished heat pipe.
It is widely used in the following production environments:
– Heat pipe manufacturers — sintering copper powder wick structures for standard round heat pipes (D3-D12), flat heat pipes, and U-shaped heat pipes used in CPU coolers, server heat sinks, and laptop thermal modules
– Vapor chamber (VC) production facilities — sintering copper sintered wick layers inside vapor chamber cavities for high-power chip cooling in AI servers, graphics cards, and data center hardware
– New energy & EV thermal management manufacturers — producing high-performance sintered heat pipes for battery pack cooling systems and power electronics thermal management
– Aerospace & industrial electronics manufacturers — sintering precision copper wicks for heat pipes used in high-reliability, high-performance thermal control applications
– Contract heat pipe manufacturers — batch sintering of multiple product specifications within a single furnace cycle using adjustable pressure and temperature parameters
If your heat pipe production line requires a copper powder sintering oven capable of operating at 850-1000°C with 20-ton pressing pressure and vacuum conditions, the thermalmachinery vacuum sintering furnace is built for your process.
FAQ
What temperature and vacuum level does your vacuum sintering furnace operate at?
The furnace operates at a standard working temperature of 850° C, with sintering cycle temperatures reaching 950-1000° C depending on the copper powder specification and wick structure requirements. The vacuum degree inside the furnace chamber reaches 10-1 torr, providing the oxygen-free environment required to prevent copper oxidation during the sintering process. All temperature and pressure parameters are adjustable via the HMI touchscreen to match your specific sintering profile.
What is the working pressure and effective chamber size of the sintering furnace?
The working pressure is 20 tons, applied to compact the copper powder against the tube wall during the sintering cycle. The effective chamber size is 400 x 400 x 650mm, allowing multiple heat pipe tubes to be sintered per batch. Fixture configurations can be adjusted to accommodate different tube diameters and lengths within the chamber dimensions.
How long does one sintering cycle take?
The complete working cycle — from loading to unloading — is approximately 10 hours per furnace run. This includes the temperature ramp-up phase, the sintering dwell period at 850-1000° C, and the water-cooled temperature reduction phase. Water cooling is used instead of passive air cooling to reduce the cooldown time and improve overall batch throughput compared to conventional sintering ovens.
Can the sintering furnace handle different heat pipe tube specifications?
Yes. The pressure and temperature parameters are fully adjustable via the HMI interface, allowing the same furnace to be used for different tube diameters, copper powder grades, wick thickness targets, and sintering profiles without hardware changeover. If your tube specifications fall outside the standard chamber dimensions or require a modified fixture design, our engineering team can configure a custom solution.
Can I order the vacuum sintering furnace as a standalone unit or as part of a complete line?
Both options are available. The vacuum sintering furnace can be ordered as a standalone copper wick sintering unit and integrated into your existing heat pipe production line. It can also be supplied together with copper powder filling machines, vacuum degassing equipment, water injection machines, automatic welders, and pipe bending machines as part of a complete integrated production line. We configure the equipment package based on your current setup and production targets.
Do you support OEM/ODM customization for non-standard sintering requirements?
Yes. We provide OEM/ODM equipment customization for vacuum sintering furnaces. If your process requires a different chamber size, higher working pressure, extended temperature range, modified vacuum system configuration, or integration with specific upstream or downstream equipment, our engineering team can develop a customized sintering furnace solution. Contact us with your process specifications and production requirements.
Can I test the furnace with my own tube samples before placing an order?
Yes. We support process validation before order confirmation. You can send your tube samples and copper powder specifications to our Kunshan facility, and we will run a sintering trial on our furnace to verify wick formation quality, density, dimensional consistency, and compatibility with your downstream degassing and testing requirements. This helps confirm the correct furnace configuration and sintering parameters before production.