Shijiazhuang Hongtao Technology Co., Ltd. manufactures a high-temperature microwave rapid foaming and drying system specifically engineered for phenolic resin insulation materials. The equipment achieves 70% faster foaming cycles with 40% less energy consumption versus conventional oven curing, producing uniform closed-cell phenolic foam for aerospace, construction, and cold-chain insulation applications.
Product details
Shijiazhuang, Hebei Province — May 31, 2026 — Shijiazhuang Hongtao Technology Co., Ltd. has introduced a breakthrough in phenolic resin processing: a high-temperature microwave rapid foaming and drying system that dramatically accelerates the curing and foaming of phenolic insulation materials.
Phenolic foam is a critical thermal insulation material used in aerospace, LNG storage, cold-chain logistics, and green building envelopes. Traditional curing relies on conventional hot-air ovens, which suffer from slow heat transfer, uneven foaming, long cycle times (often 8–12 hours), and high energy waste. Hongtao Technology's microwave solution eliminates these bottlenecks entirely.
The system delivers volumetric microwave heating directly into the phenolic resin matrix, triggering simultaneous internal foaming and moisture evaporation. This produces uniform closed-cell structures with consistent density — a quality metric that conventional surface heating simply cannot match.
| Parameter | Conventional Oven | Hongtao Microwave Dryer |
|---|---|---|
| Foaming Cycle | 8–12 hours | ↓ 70% faster |
| Energy Consumption | Baseline | ↓ Over 40% |
| Cell Uniformity | Inconsistent | Highly uniform |
| Moisture Removal | Slow, surface-first | Rapid, volumetric |
Operating at scalable microwave power (10kW–150kW) with precise temperature control up to 300°C, the equipment handles both batch and continuous production modes. It is particularly suited for phenolic foam boards, pipe insulation, and aerospace-grade lightweight core materials.
Founded in 2010 in Zhengding County, Shijiazhuang, Hongtao Technology holds multiple national patents in microwave energy applications. The company exports to South Korea, Japan, Singapore, and Kazakhstan, and maintains R&D partnerships with leading Chinese universities.
As global demand for high-performance thermal insulation surges under tightening energy-efficiency regulations, Hongtao's microwave foaming technology positions phenolic foam manufacturers to scale faster, cleaner, and more competitively.
For inquiries: http://www.htkj20.com