Castable precast blocks are factory-cast, cured and fired to drawings with ±2mm dimensional accuracy, 1700℃ max service. Uniform quality with crane-installed placement that eliminates formwork, casting and curing—dramatically shortening outage time.
| Max. Service Temp. | 1700℃ |
|---|---|
| Dimensional Tolerance | ±2mm |
| Bulk Density | 2.70-2.95 g/cm³ |
| Production | Precast to drawing, cured and pre-fired |
Castable precast blocks are pre-formed, cured and fired (or lightly fired) monolithic refractory components made in the factory to drawings, with dimensional accuracy ±2mm and service up to 1700℃. Factory-controlled curing and drying give uniform quality and rapid on-site installation. They are Henan Songrui's integrated solution for complex furnace shapes and special components.
Precast suits repetitive, complex or site-constrained components; consider schedule, quantity and transport when choosing between precast and cast-in-place. Design large blocks around lifting and transport capability.
Reserve expansion joints and seal joints to prevent gas penetration; avoid impact damage during lifting. Design and installation guidance available.
Henan Songrui New Refractory Materials Co., Ltd. (Xuanhua Town Industrial Park, Henan) is a 2024 Class A taxpayer and SRDI SME. For selection, quotation or prefabrication proposals, contact Manager Zheng (17513376789 / 17513376789@163.com).
Precast castable blocks are factory-formed, cured and fired, then installed on site:
Factory quality and dimensional accuracy, pre-cured and fired, direct installation—cutting downtime by more than half.
Custom shapes per drawing: trough covers, cyclone blocks, burner nozzles, launders, with grade selected by condition.
Typically 7-15 days including curing/firing; large custom pieces depend on drawing and quantity, express scheduling available.
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