Breaking the Bottleneck: The Industrial Logic Behind China's 5,000-Ton PAN Precursor Equipment Breakthrough

While the high-end carbon fiber market still pays premiums for imported precursor, a technological achievement from Shaoxing, Zhejiang, is rewriting the rules. The 5,000-ton DMSO dry-jet wet-spinning PAN precursor equipment passed expert appraisal, reaching international advanced level, with two key indicators benchmarking global leaders. This signals a systematic breakthrough in the "bottleneck" of domestic carbon fiber chain—precursor equipment and process.

Event Background

This achievement is not a single-point improvement but a systematic collaboration. Jinggong Technology, together with Zhejiang Huachuang Carbon Fiber Technology (provincial manufacturing innovation center), Donghua University, and Zhejiang Sci-Tech University, spent two years breaking through the full process from polymerization, spinning to solvent recovery. The appraisal meeting in Shaoxing highlights the city's rising role as a carbon fiber equipment hub.

For the industry, the most noteworthy are the specific technical indicators. The 60m³ large-capacity polymerization reactor maintains temperature uniformity of ±0.4°C, solving engineering scale-up challenges in high-viscosity systems—the foundation of precursor quality consistency. In spinning, terminal pressure deviation of ±1%, spinneret pressure fluctuation of 1‰, process speed of 280m/min, and annual capacity of 5,000 tons directly determine production efficiency and yield.

Industry Impact

The solvent recovery data carries even greater economic significance. DMSO recovery rate no less than 99.5%, steam consumption no higher than 2.2t/t, purity 99.88%, and residual solvent below 100ppm. In carbon fiber cost structure, precursor accounts for about half, and solvent recovery is a key variable. Lower consumption means hundreds of yuan saved per ton, real profit for large-scale producers.

Deeper impact lies in supply chain security. PAN precursor is the core of carbon fiber performance, and its equipment has long restricted China's high-end autonomy. This breakthrough enables domestic substitution of complete equipment from polymerization to recovery, freeing downstream producers from overseas delivery and maintenance constraints. Amid geopolitical uncertainties, this self-reliance carries strategic value beyond hardware.

For buyers at the intersection of textiles and new materials, this technical path offers a replicable cost-reduction model. The MOM intelligent production management system and central control visualization platform enable visible processes, traceable quality, manageable equipment, and controllable energy—signaling a shift from experience-driven to data-driven production. Such technology spillover may accelerate intelligent transformation across the chemical fiber industry.

Practical Recommendations

For Buyers - Prioritize suppliers using this equipment, verifying DMSO consumption and temperature control data as quality stability indicators. - Add solvent recovery efficiency and energy consumption as clauses in precursor contracts to hedge future environmental compliance costs. - Check if suppliers offer MOM data interfaces for integration into your supply chain platform for digital traceability.

For Foreign Trade Companies - Assess export potential of domestic precursor equipment to emerging carbon fiber hubs in Southeast Asia and the Middle East, offering complete technology packages. - Leverage DMSO recovery metrics as green manufacturing selling points to meet EU carbon footprint requirements and boost competitiveness. - Monitor domestic capacity expansion pace and adjust precursor trade strategies to avoid low-end homogenized competition.