Product Overview
Precision-machined graphite nozzles and plungers are widely used in glass forming and gob feeding processes. With excellent thermal conductivity, high temperature resistance, and non-wetting properties with molten glass, graphite nozzles ensure smooth glass flow and consistent gob formation in container glass, tableware, and fiberglass manufacturing.
Key Features
- Excellent thermal conductivity for uniform gob temperature
- Non-wetting surface - glass does not stick to graphite
- High temperature resistance up to 1500°C+
- Good machinability for precise nozzle geometry
- Wear-resistant for long production runs
- Custom nozzle designs for different gob sizes
- Suitable for various glass types and colors
Technical Specifications
| Parameter | Unit | Value |
|---|---|---|
| Material | - | Fine-Grain Isostatic Graphite |
| Bulk Density | g/cm³ | 1.75 - 1.85 |
| Shore Hardness | - | 65 - 75 |
| Flexural Strength | MPa | 40 - 50 |
| Thermal Conductivity | W/(m·K) | 100 - 130 |
| Max Working Temp | °C | 1500 |
| Nozzle Diameter Range | mm | 5 - 100 |
| Dimensional Tolerance | mm | ±0.05 |
Applications
- Glass container forming (bottles, jars)
- Tableware and drinking glass production
- Fiberglass and wool insulation manufacturing
- Glass tube and vial forming
- Gob feeder and shears components
- Press-and-blow and blow-and-blow machines
- Specialty glass and optical glass forming
Why Choose Jincheng Graphite Glass Nozzles?
We manufacture precision graphite nozzles, plungers, and gob feeder components for glass container manufacturers and IS machine suppliers worldwide. Our graphite components are machined to exacting tolerances to ensure consistent gob weight and shape, improving production efficiency and reducing glass defects. We work with both container glass and fiberglass producers to provide reliable graphite tooling solutions.
FAQ
Q: How long do graphite nozzles last in glass forming?
A: Service life depends on glass type, forming temperature, and machine speed. Typically, graphite nozzles last 1-4 weeks in continuous production before reconditioning or replacement. Regular cleaning and proper cooling can significantly extend nozzle life.
Q: Can you match existing nozzle designs from other suppliers?
A: Yes, we can manufacture graphite nozzles and plungers to match most standard IS machine and gob feeder designs. Please provide drawings or send sample parts, and we will produce compatible replacements that meet your specifications.
Q: What grade of graphite do you recommend for glass nozzles?
A: For most glass forming applications, fine-grain isostatic graphite provides the best balance of thermal conductivity, machinability, and wear resistance. For high-wear or high-temperature applications, we recommend higher density grades with finer grain structure.
Hot Tags: graphite nozzle, glass forming nozzle, gob feeder, IS machine parts, glass container manufacturing, graphite plunger, glass nozzle, fiberglass, custom ingot mold, die casting mold, graphite bead mold, graphite heart mold, metallic bipolar plates for fuel cells, pemfc bipolar plate
