CHANGZHOU, China — Shoujin Xu, Secretary-General of the Jiangsu Fastener Industry Association, led a delegation to visit Changzhou Junhe Technology Co., Ltd. The visit centered on industrial decarbonization, the evolution of waterborne chromium-free coatings, domestic equipment advancements, and full-lifecycle solutions for fastener manufacturing.
As an integrated surface engineering solution provider, Junhe Technology showcased its end-to-end capabilities spanning proprietary chemical formulations, specialized machinery manufacturing, toll coating validation, and automated production line upgrades.
Formulations & OEM Material Certification
During the technical exchange, Junhe Technology presented its latest advances in micro-layer anti-corrosion chemistry.
- ▶ Proprietary Waterborne Chemistry: Junhe highlighted its proprietary Zincover® and Junhe® series of waterborne chromium-free zinc-aluminum coatings. Designed with basecoat-topcoat synergy, these coatings deliver superior corrosion resistance, thin-film uniformity, and salt-spray durability without hydrogen embrittlement risks.
- ▶ Automotive & Heavy Industry Approvals: Qualified formulations have secured listings in OEM engineering directories for major automotive manufacturers and heavy machinery suppliers, providing tier-level supply chain compliance for fastener producers.
On-Site Inspection: Precision Equipment & Mass Production Validation
Following the symposium, the delegation toured Junhe’s specialized machinery manufacturing facility and live coating demonstration center.
Junhe engineers demonstrated key systems, including automated planetary dip-spin coating machines, continuous mesh-belt sintering furnaces, and modular pretreatment lines. The team detailed critical mechanical features such as automated basket loading/unloading, synchronized multi-axis rotation, and high-precision temperature profiling engineered for high-tensile bolts, nuts, and complex stampings.
In the live toll coating workshop, delegates observed full-scale production running dip-spin and automated spray lines. By testing chemical formulations and refining machinery inside a live production environment, Junhe validates high-yield reliability and process repeatability before equipment delivery.
Full-Lifecycle Solutions for Fastener Manufacturers
Addressing regulatory pressures, high capital expenditures, and line modernization challenges faced by fastener makers, Junhe outlined several collaborative models:
- Turnkey Line Engineering: Custom design, layout planning, manufacturing, and on-site commissioning of complete intelligent zinc flake coating plants.
- Retrofit & Upgrades: Modernizing legacy dip-spin lines and imported coating equipment with automated controls and energy-efficient heating systems to cut cycle times and power consumption.
- Flexible Engagement Models: Offering equipment leasing, on-site co-processing, toll coating, and trade-in programs to help manufacturers manage capital expenditure while adopting green coating technology.
Fostering a Sustainable Industrial Ecosystem
Secretary-General Shoujin Xu recognized Junhe’s integrated model of combining specialized chemistry, mechanical engineering, and live application data, noting that cross-supply-chain alignment is critical for modern fastener production.
Moving forward, Junhe Technology will continue advancing high-durability, low-VOC surface treatments. Leveraging its manufacturing and testing facilities in Changzhou, the company works alongside fastener enterprises globally to drive efficient, environmentally compliant coating operations.
About Junhe Technology
Changzhou Junhe Technology Co., Ltd. provides comprehensive metal corrosion protection solutions, specializing in waterborne chromium-free zinc flake coatings, automated coating and curing equipment, and high-specification contract coating services.
To request technical specifications, test reports, or line retrofit assessments, contact the technical sales team at: marketing@junhe-china.com
Post time: Nov-09-2026