Why Use Graphite Fixtures Instead of Metal?
In high-temperature and vacuum environments, metal fixtures may deform, oxidize, or contaminate the process.
Graphite fixtures offer significant advantages:
Stable performance at ultra-high temperatures
No metal vapor contamination in vacuum furnaces
Excellent thermal shock resistance
Low thermal expansion for dimensional stability
Compatible with graphite hot zones and furnace components
Lightweight compared to metal fixtures
Typical Applications
Graphite fixtures and holders are commonly used in:
Vacuum sintering furnaces
Vacuum heat treatment and brazing furnaces
Semiconductor wafer processing systems
Photovoltaic material manufacturing
Powder metallurgy and hard alloy sintering
Advanced ceramic and electronic material processing
They are suitable for both equipment manufacturers and industrial end-users.
Functions in Thermal Processing
Graphite fixtures and holders are used to:
Precisely position parts during heating cycles
Maintain alignment and spacing between workpieces
Ensure uniform heat distribution
Reduce deformation caused by thermal expansion
Improve process consistency and product quality
Material Options
We manufacture graphite fixtures and holders using multiple grades of synthetic graphite, including:
Isostatic graphite – high strength, fine grain, excellent isotropy
Molded graphite – cost-effective for general applications
High-purity graphite – suitable for semiconductor and precision processes
Material selection is based on temperature, atmosphere, load, and purity requirements.
Customization & Design Support
Graphite fixtures and holders are 100% custom-made.
We support:
Design based on drawings or samples
Optimization for furnace structure and process flow
Custom sizes, shapes, and assembly designs
Prototyping and small-batch production
📩 Share your drawings or process details for technical evaluation.
Manufacturing & Machining Capabilities
With advanced CNC machining and strict quality control, we ensure:
Tight tolerances for precision applications
Smooth surfaces and accurate geometries
Consistent quality for complex and multi-part assemblies
We can supply both single components and complete fixture assemblies.
Typical Technical Specifications (Reference)
| Item | Typical Value |
|---|---|
| Material | Synthetic Graphite |
| Density | 1.70–1.90 g/cm³ |
| Carbon Content | ≥99.9% (optional ≥99.99%) |
| Max Working Temperature | Up to 3000°C (vacuum/inert atmosphere) |
| Thermal Expansion | Low |
| Thermal Shock Resistance | Excellent |
Important Notes
Not recommended for long-term use in oxidizing atmospheres
Load capacity depends on fixture design and graphite grade
Proper installation and handling extend service life
Why Choose Our Graphite Fixtures & Holders
Experienced manufacturer of custom graphite components
Deep understanding of furnace and thermal processing applications
Stable supply of high-quality graphite materials
Precision machining for complex structures
Responsive technical support and fast quotation
Frequently Asked Questions (FAQ)
What are graphite fixtures and holders used for?
Graphite fixtures and holders are used to support and position parts during high-temperature thermal processing in vacuum furnaces, semiconductor equipment, and sintering systems.
Are graphite fixtures suitable for vacuum furnaces?
Yes. Graphite fixtures perform extremely well in vacuum and inert gas environments, providing stable dimensions and clean processing without metal contamination.
Can graphite fixtures be customized?
Yes. Graphite fixtures and holders are fully customized based on drawings, furnace structure, and process requirements.
What graphite materials are used for fixtures?
Isostatic graphite, molded graphite, and high-purity graphite are commonly used. Material selection depends on load, temperature, and purity requirements.
Are graphite fixtures reusable?
Yes. With proper design and operating conditions, graphite fixtures can be reused for multiple thermal cycles.
What information is needed for a quotation?
Please provide drawings, working temperature, atmosphere, load conditions, and order quantity.
Keywords
Graphite Fixtures
Graphite fixtures and holders are precision-machined graphite components designed to support, position, and secure workpieces during high-temperature thermal processing.
They are widely used in vacuum furnaces, inert gas furnaces, semiconductor and photovoltaic equipment, where dimensional stability, material purity, and thermal resistance are critical.
Graphite fixtures and holders are typically custom-designed according to furnace structure, process requirements, and workpiece geometry.
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TEL: +8615711363051
EMAIL: sales@topflymaterial.com
ADD: Xingchuang International C912, Xinya Street No.15, Daxing District, Beijing, China