A tungsten boat is an open, shallow container designed for material loading, heating and evaporation under vacuum or a protective atmosphere. It can be manufactured in tray, trough or custom shapes, with optional hooks or electrode connections to suit different equipment designs.
Open Structure – Supports convenient material loading and vapor release.
High-Temperature Stability – Maintains its shape during demanding thermal processes.
Controlled Electrical Resistance – Thickness and geometry can be adjusted for resistance-heating requirements.
High Purity and Low Outgassing – Helps reduce contamination during vacuum processing.
GEMEI manufactures custom tungsten boat products according to equipment dimensions, heating requirements and customer drawings. Boat shape, thickness, connection design and surface condition can be adjusted for vacuum evaporation, heat treatment and other high-temperature processes.
| Specification | Available Options |
| Material | High-purity tungsten |
| Purity | 99.95% |
| Boat Shape | Flat-bottom / V-shaped / Trough-shaped / Custom |
| Thickness Range | 0.1-0.8mm |
| Length and Width | 200mm L 30mm W |
| Dimensional Tolerance | According to drawings or agreed specifications |
| Surface Condition | Rolled / Cleaned / Ground / Custom |
| Connection Design | Hooks / Holes / Slots / Extended Ends |
| Custom Processing | Cutting, forming, drilling and machining |
| Documentation | Material certificate and inspection report upon request |
Custom holes, slots, mounting ends and electrical connections can be added according to the installation method. Final specifications are reviewed based on the processing material, equipment design and operating conditions.
GEMEI manufactures high-purity tungsten boat products according to the required shape, thickness, electrical resistance and equipment connection. Different manufacturing methods can be selected based on the product structure and operating conditions.
Formed Tungsten Boats
Rolled tungsten sheet can be cut and formed into shallow trays, troughs and other open structures. This method is suitable for relatively thin and standardized boat designs.
Machined Tungsten Boats
Thicker plates or blanks can be machined into custom shapes when greater rigidity, specific dimensions or complex connection features are required.
Custom Tungsten Boat Design Options
Available designs may include flat-bottom, V-shaped, trough-shaped and drawing-based structures, with optional holes, slots, hooks or extended ends for mounting and electrical connection.
Final dimensions, thickness, surface condition and connection design are confirmed according to the customer’s drawing and equipment requirements.
A tungsten boat is commonly used to hold and heat small quantities of material under vacuum or a protective atmosphere. Its open structure supports convenient material loading, controlled heating and vapor release.
Vacuum Evaporation and PVD Coating
Tungsten boats can serve as resistance-heating evaporation sources in vacuum coating systems. They are used to heat compatible metals or compounds before vapor deposition onto optical, electronic or decorative substrates.
Semiconductor and Electronic Processing
Custom tungsten boats may be used as material carriers or heating components in semiconductor and electronic manufacturing equipment requiring clean, stable operation under controlled atmospheres.
Heat Treatment and Material Processing
Tungsten boats can hold small parts, powders or samples during annealing, sintering and other high-temperature processes in vacuum or inert-gas furnaces.
Laboratory and Research Applications
They are also suitable for small-scale material synthesis, evaporation tests and thermal experiments where high-temperature stability and low contamination are required.
GEMEI can customize the boat shape, thickness, dimensions and connection design according to the equipment and processing material.
GEMEI can manufacture flat-bottom, V-shaped, trough-shaped and other custom boat structures. Holes, slots, hooks and extended connection ends can also be added according to equipment requirements.
Yes. Dimensions, thickness, shape, mounting features and connection structures can be customized after a manufacturability review of the drawing.
Please provide the required shape, length, width, thickness, quantity, equipment connection, processing material and technical drawing. Operating atmosphere and heating method are also helpful for product selection.
A tungsten boat is commonly used for vacuum evaporation, PVD coating, heat treatment, material processing and laboratory-scale thermal applications.
Tungsten can oxidize at elevated temperatures in air. Tungsten boats are therefore generally used under vacuum, inert gas or another suitable protective atmosphere.
Service life depends on operating temperature, heating cycle, boat thickness, electrical loading, processing material, furnace atmosphere and installation method.
Material certificates, chemical composition reports and dimensional inspection reports may be supplied according to the order requirements and available inspection capabilities.
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