Cranks
IPS Ceramics’ Cranks support ware during glost firings.
Our range includes T-Cranks, Y-Cranks and Web Cranks. Pin Crank Systems are also available.
- Varied range of products which can be customised to fit your exact required
- Maximum support using minimum material
- Easily stacked to maximise kiln fill
General Overview
IPS Ceramics’ T-Cranks, Y-Cranks and Web Cranks are used to support plates, flatware and holloware during decoration and glost firing. Easily stacked to maximise kiln-fill, our T-Cranks, Y-Cranks and Web Cranks contact the ware at only certain points of the foot, minimising the risk of plucking or sticking.
T-Cranks and Y-Cranks are easier to load and unload without separating the stack. The Web Cranks can be lighter weight and allow for better heat distribution.
Designed to provide maximum support using minimal material, IPS Ceramics’ cordierite cranks provide a low cost, low weight, low energy solution to supporting ware through lower temperature firings.
Technical Information
| General Information | |||||
| Type | Standard | Glaze Resistant | Cast (Standard) | Cast (Enhanced) | Cast (Thermal Shock Resistant) |
| Max Usage Temp. | 1300 °C / 2372 °F | 1250 °C / 2282 °F | 1250 °C / 2282 °F | 1250 °C / 2282 °F | 1250 °C / 2282 °F |
| Typical Physical Properties | |||||
| Bulk Density | 1.85 g/cm³ | 2.20 g/cm³ | 1.90 g/cm³ | 1.90 g/cm³ | 1.80 g/cm³ |
| Apparent Porosity | 28 % | 25 % | 27 % | 29 % | 32 % |
| MoR @ 20°C | 15 MPa | 14 MPa | 15 MPa | 30 MPa | 16 MPa |
| MoR @ 1250°C | 13 MPa | 12 MPa | 15 MPa | 25 MPa | 15 MPa |
| CTE 20 – 1000 °C | 2.4 x10-6/K | 2.4 x10-6/K | 2.5 x10-6/K | 2.6 x10-6/K | 1.8 x10-6/K |
| Specific Heat @ 20°C | 1.0 kJ/kg.K | 1.2 kJ/kg.K | 1.0 kJ/kg.K | 1.0 kJ/kg.K | 1.0 kJ/kg.K |
| Typical Chemical Analysis | |||||
| Al2O3 | 37 % | 25 % | 42 % | 38 % | 44 % |
| SiO2 | 50 % | 45 % | 48 % | 45 % | 48 % |
| MgO | 8 % | 8.5 % | 7.5 % | 8 % | 10 % |
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