Sialon ULTRA™ Rotor, Impeller & Shaft assemblies are the leading graphite-free solution for rotary and ultrasonic degassing of molten aluminium. The complete unit consists of a high-strength Sialon shaft with quick or threaded coupling plus a precisely engineered impeller. The impeller geometry injects and evenly disperses fine bubbles of inert gas (optionally with chlorine addition to remove alkali metals) for optimal hydrogen removal and metal purification.
These components operate reliably from 650 to 1400 °C and excel thanks to exceptional non-wetting properties (no metal adhesion or buildup), outstanding corrosion/erosion resistance, and superior mechanical durability – delivering dramatically longer service life than traditional graphite rotors and shafts. They are ideal for furnaces, Sialon ladles, in-line degassing systems, and integration with hydrogen content measurement devices.
Available in four premium Sialon ULTRA™ grades (001–004) with the following key properties:
Since 1986, Sialon Ceramics has been the trusted choice for molten non-ferrous applications, offering the best price/performance ratio and minimal maintenance. View Sialon Rotor, Impeller & Shaft – custom impeller designs, shaft lengths, and coupling types available on request. Standard 12-month warranty against chemical attack in molten aluminium.
| Material data sheet | Sialon (Si3Al3O3N5) | ||||
Typical Sialon ULTRA grades |
ULTRA-001 | ULTRA-002 | ULTRA-003 | ULTRA-004 | |
| Bulk Density | g/cm3 | 3.2 | 3.1 | 3.3 | 3.2 |
| Water Absorption | ％ | 0 | 0 | 0 | 0 |
| Flexural Strength | MPa | 580 | 900 | 1,020 | 790 |
| Vickers Hardness HV1 | GPa | 13.9 | 12.7 | 15.0 | 13.8 |
| Fracture Toughness （SEPB） | MPam1/2 | 4 ～ 5 | 6 ～ 7 | 7 | 6 ～ 7 |
| Young’s Modulus of Elasticity | GPa | 290 | 270 | 300 | 290 |
| Poisson’s Ratio | – | 0.28 | 0.28 | 0.28 | 0.28 |
| Coefficient of Linear Thermal (40 – 800 °C) Expansion |
×10-6/℃ | 3.2 | 3.4 | 3.3 | 3.5 |
| Thermal Conductivity （20℃） | W/(m・k) | 25 | 23 | 27 | 54 |
| Specific Heat | J/(g・k) | 0.64 | 0.66 | 0.65 | 0.66 |
| Heat Shock Resistance | ℃ | 550 | 800 | 800 | 900 |
| Volume Resistivity （20℃） | Ω・cm | >1014 | >1014 | >1014 | >1014 |
Sialon ULTRA™ Rotor, Impeller & Shaft assemblies are the leading graphite-free solution for rotary and ultrasonic degassing of molten aluminium. The complete unit consists of a high-strength Sialon shaft with quick or threaded coupling plus a precisely engineered impeller. The impeller geometry injects and evenly disperses fine bubbles of inert gas (optionally with chlorine addition to remove alkali metals) for optimal hydrogen removal and metal purification.
These components operate reliably from 650 to 1400 °C and excel thanks to exceptional non-wetting properties (no metal adhesion or buildup), outstanding corrosion/erosion resistance, and superior mechanical durability – delivering dramatically longer service life than traditional graphite rotors and shafts. They are ideal for furnaces, Sialon ladles, in-line degassing systems, and integration with hydrogen content measurement devices.
Available in four premium Sialon ULTRA™ grades (001–004) with the following key properties:
Since 1986, Sialon Ceramics has been the trusted choice for molten non-ferrous applications, offering the best price/performance ratio and minimal maintenance. View Sialon Rotor, Impeller & Shaft – custom impeller designs, shaft lengths, and coupling types available on request. Standard 12-month warranty against chemical attack in molten aluminium.
| Material data sheet | Sialon (Si3Al3O3N5) | ||||
Typical Sialon ULTRA grades |
ULTRA-001 | ULTRA-002 | ULTRA-003 | ULTRA-004 | |
| Bulk Density | g/cm3 | 3.2 | 3.1 | 3.3 | 3.2 |
| Water Absorption | ％ | 0 | 0 | 0 | 0 |
| Flexural Strength | MPa | 580 | 900 | 1,020 | 790 |
| Vickers Hardness HV1 | GPa | 13.9 | 12.7 | 15.0 | 13.8 |
| Fracture Toughness （SEPB） | MPam1/2 | 4 ～ 5 | 6 ～ 7 | 7 | 6 ～ 7 |
| Young’s Modulus of Elasticity | GPa | 290 | 270 | 300 | 290 |
| Poisson’s Ratio | – | 0.28 | 0.28 | 0.28 | 0.28 |
| Coefficient of Linear Thermal (40 – 800 °C) Expansion |
×10-6/℃ | 3.2 | 3.4 | 3.3 | 3.5 |
| Thermal Conductivity （20℃） | W/(m・k) | 25 | 23 | 27 | 54 |
| Specific Heat | J/(g・k) | 0.64 | 0.66 | 0.65 | 0.66 |
| Heat Shock Resistance | ℃ | 550 | 800 | 800 | 900 |
| Volume Resistivity （20℃） | Ω・cm | >1014 | >1014 | >1014 | >1014 |
Sialon ULTRA™ Rotor, Impeller & Shaft assemblies are the leading graphite-free solution for rotary and ultrasonic degassing of molten aluminium. The complete unit consists of a high-strength Sialon shaft with quick or threaded coupling plus a precisely engineered impeller. The impeller geometry injects and evenly disperses fine bubbles of inert gas (optionally with chlorine addition to remove alkali metals) for optimal hydrogen removal and metal purification.
These components operate reliably from 650 to 1400 °C and excel thanks to exceptional non-wetting properties (no metal adhesion or buildup), outstanding corrosion/erosion resistance, and superior mechanical durability – delivering dramatically longer service life than traditional graphite rotors and shafts. They are ideal for furnaces, Sialon ladles, in-line degassing systems, and integration with hydrogen content measurement devices.
Available in four premium Sialon ULTRA™ grades (001–004) with the following key properties:
Since 1986, Sialon Ceramics has been the trusted choice for molten non-ferrous applications, offering the best price/performance ratio and minimal maintenance. View Sialon Rotor, Impeller & Shaft – custom impeller designs, shaft lengths, and coupling types available on request. Standard 12-month warranty against chemical attack in molten aluminium.
| Material data sheet | Sialon (Si3Al3O3N5) | ||||
Typical Sialon ULTRA grades |
ULTRA-001 | ULTRA-002 | ULTRA-003 | ULTRA-004 | |
| Bulk Density | g/cm3 | 3.2 | 3.1 | 3.3 | 3.2 |
| Water Absorption | ％ | 0 | 0 | 0 | 0 |
| Flexural Strength | MPa | 580 | 900 | 1,020 | 790 |
| Vickers Hardness HV1 | GPa | 13.9 | 12.7 | 15.0 | 13.8 |
| Fracture Toughness （SEPB） | MPam1/2 | 4 ～ 5 | 6 ～ 7 | 7 | 6 ～ 7 |
| Young’s Modulus of Elasticity | GPa | 290 | 270 | 300 | 290 |
| Poisson’s Ratio | – | 0.28 | 0.28 | 0.28 | 0.28 |
| Coefficient of Linear Thermal (40 – 800 °C) Expansion |
×10-6/℃ | 3.2 | 3.4 | 3.3 | 3.5 |
| Thermal Conductivity （20℃） | W/(m・k) | 25 | 23 | 27 | 54 |
| Specific Heat | J/(g・k) | 0.64 | 0.66 | 0.65 | 0.66 |
| Heat Shock Resistance | ℃ | 550 | 800 | 800 | 900 |
| Volume Resistivity （20℃） | Ω・cm | >1014 | >1014 | >1014 | >1014 |
Sialon ULTRA™ Rotor, Impeller & Shaft assemblies are the leading graphite-free solution for rotary and ultrasonic degassing of molten aluminium. The complete unit consists of a high-strength Sialon shaft with quick or threaded coupling plus a precisely engineered impeller. The impeller geometry injects and evenly disperses fine bubbles of inert gas (optionally with chlorine addition to remove alkali metals) for optimal hydrogen removal and metal purification.
These components operate reliably from 650 to 1400 °C and excel thanks to exceptional non-wetting properties (no metal adhesion or buildup), outstanding corrosion/erosion resistance, and superior mechanical durability – delivering dramatically longer service life than traditional graphite rotors and shafts. They are ideal for furnaces, Sialon ladles, in-line degassing systems, and integration with hydrogen content measurement devices.
Available in four premium Sialon ULTRA™ grades (001–004) with the following key properties:
Since 1986, Sialon Ceramics has been the trusted choice for molten non-ferrous applications, offering the best price/performance ratio and minimal maintenance. View Sialon Rotor, Impeller & Shaft – custom impeller designs, shaft lengths, and coupling types available on request. Standard 12-month warranty against chemical attack in molten aluminium.
| Material data sheet | Sialon (Si3Al3O3N5) | ||||
Typical Sialon ULTRA grades |
ULTRA-001 | ULTRA-002 | ULTRA-003 | ULTRA-004 | |
| Bulk Density | g/cm3 | 3.2 | 3.1 | 3.3 | 3.2 |
| Water Absorption | ％ | 0 | 0 | 0 | 0 |
| Flexural Strength | MPa | 580 | 900 | 1,020 | 790 |
| Vickers Hardness HV1 | GPa | 13.9 | 12.7 | 15.0 | 13.8 |
| Fracture Toughness （SEPB） | MPam1/2 | 4 ～ 5 | 6 ～ 7 | 7 | 6 ～ 7 |
| Young’s Modulus of Elasticity | GPa | 290 | 270 | 300 | 290 |
| Poisson’s Ratio | – | 0.28 | 0.28 | 0.28 | 0.28 |
| Coefficient of Linear Thermal (40 – 800 °C) Expansion |
×10-6/℃ | 3.2 | 3.4 | 3.3 | 3.5 |
| Thermal Conductivity （20℃） | W/(m・k) | 25 | 23 | 27 | 54 |
| Specific Heat | J/(g・k) | 0.64 | 0.66 | 0.65 | 0.66 |
| Heat Shock Resistance | ℃ | 550 | 800 | 800 | 900 |
| Volume Resistivity （20℃） | Ω・cm | >1014 | >1014 | >1014 | >1014 |
We ship usually within 4 weeks
In molten aluminium baths
Since 1986
Sweden / Sverige
+(46) 31 754 0790
Denmark
+(45) 35 15 8085
USA/Canada Tollfree
+ 1 (833) 709-1399
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