Custom Graphite Trays For Vacuum & Sintering Furnaces
- High-purity, fine-grain graphite: Ensures minimal contamination and consistent performance in vacuum and sintering environments.
- Precision CNC-machined: Custom dimensions to fit square, rectangular, or complex multi-layer designs, tailored for specific furnace setups.
- Optimized for uniform heat distribution: Promotes consistent thermal performance, minimizing part deformation during high-temperature cycles.
- High strength and thermal shock resistance: Delivers long-lasting durability in the harshest furnace environments.
- Complete furnace fixture systems: Available with matching posts, risers, support plates, and rack assemblies for a fully integrated solution.
Description
High Purity Custom Graphite Trays for Vacuum & Sintering Furnaces
SHJ CARBON provides high strength, high purity graphite trays engineered for use in vacuum furnaces, sintering furnaces, and high-temperature heat treatment environments. Designed to deliver thermal stability, dimensional accuracy, and long service life, our graphite trays are widely used for MIM components, metal powders, precision parts, semiconductor materials, and advanced alloy processing.
We offer full customization based on drawings, load profiles, furnace configuration, and thermal field requirements. We support customers in defining the most efficient graphite plate or tray layout by evaluating:
- Furnace chamber size and thermal field distribution
- Component shape, weight, and packing density
- Required output and batch processing parameters
Why Use Graphite Trays in Vacuum Furnace Heat Treatment
Graphite trays are essential components in high-temperature processing, where metals and alloys undergo sintering, carburizing, annealing, or brazing. Compared to metal-based fixtures, graphite provides:
- Excellent high-temperature stability up to 3000°C in inert/vacuum environments
- Low thermal expansion, maintaining shape under continuous heating/cooling cycles
- Uniform temperature distribution, reducing thermal gradients and part deformation
- High purification level, minimizing contamination during heat treatment
- Lightweight & machinable, allowing complex structural designs
These characteristics make graphite trays ideal for precision, repeatable heat treating workflows.
Custom Graphite Tray Manufacturing Capabilities
SHJ CARBON manufactures square, rectangular, stepped, multi-layer, and fixture-aligned graphite trays for both batch and continuous furnace systems.
- Fine-grain isostatic graphite
- High-density molded graphite
- Ultra-high purity graphite (PPM-level ash content)
- Oxidation-resistant or SiC-coated options available
Machining & Structural Design
- CNC machining with ±0.05–0.1 mm tolerance
- Custom rib structure for high-load support
- Tray + support frame + spacer post integration designs
- Lifecycle optimization based on furnace load pattern
Application Fields For Graphite Tray
Advantage
Metal Injection Molding (MIM)
Debinding and final sintering trays
Powder Metallurgy
Metal powders & components heat treatment
Semiconductor & Electronics
High purity thermal fixtures
Industrial Vacuum Furnaces
General heat-treating tray systems
Why Choose SHJ CARBON
With over a decade of experience in carbon and graphite solutions for industrial furnace systems, SHJ CARBON provides full in-house machining capabilities and reliable raw material sourcing to ensure consistent product quality. Our engineering team supports customers with furnace-specific design recommendations and workload optimization. Fast sampling and global shipping enable quick project validation and stable long-term supply.
25+ Years of Industry Experience
With over a decade of experience, we provide application-oriented carbon solutions tailored to different furnace types and processes.
In-house graphite machining workshops
Equipped with our own precision graphite machining facilities, we support complex custom parts and rapid prototyping.
Stable raw material supply chain
Long-term partnerships with top raw material suppliers ensure consistent quality and batch stability.
Technical support based on furnace process
We offer material selection and structural optimization based on your temperature curves, atmosphere conditions, and process workflow.
Pair Graphite Trays with CFC Fixtures to Improve Cycles and Load Stability
In addition to custom graphite trays, SHJ CARBON also manufactures CFC (Carbon Fiber Composite) fixtures for high-temperature furnace systems. CFC components are engineered to deliver high strength, low weight, and excellent thermal shock resistance, making them particularly suitable for continuous and batch heat treatment environments.
CFC fixtures are recommended for heat treatment operations where cycle repeatability, reduced mass, energy efficiency, and long-term durability are critical requirements. SHJ CARBON provides engineering support to analyze furnace conditions, part geometry, and workload patterns to determine when CFC is the optimal complement to graphite fixtures.
If you are considering upgrading your current workload support system to improve throughput stability or reduce maintenance frequency, we can provide a comparative evaluation and configuration proposal based on your furnace application.
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