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The global demand for food-grade 304 and 316L stainless steel has surged by 15% annually, driven by a heightening awareness of hygiene standards, corrosion resistance, and longevity. This document explores the intricate manufacturing pathways, the macro-economic status of the industry, and why NJMM's integrated scientific research and machinery manufacturing capabilities make us the preferred partner for global sourcing.
Founded in 1993, Ningbo Jiulong Machinery Manufacturing Co., Ltd (NJMM) has spent three decades refining the art of steel structure fabrication. We are not just a factory; we are a modern comprehensive enterprise integrating scientific research, machinery manufacturing, and engineering construction. Our commitment to the E-E-A-T principles ensures that every grate produced meets rigorous international standards.
The journey from raw stainless steel coil to a high-performance grill grate.
Utilizing high-speed CNC machines to slit and stretch the metal into a seamless diamond pattern, maximizing strength-to-weight ratio.
An electrochemical process that removes a microscopic layer from the surface, enhancing corrosion resistance and creating a non-stick finish.
Integrating the expanded mesh into custom-designed frames using ABB robotic welding arms for 100% consistency.
Transitioning toward automated optical inspection (AOI) to ensure zero defects in aperture size and structural integrity.
By 2030, NJMM plans to integrate "Smart Grate" technology for industrial food processing, where sensors within the steel structure monitor heat distribution. Additionally, our "Green Factory" initiative ensures that 95% of stainless steel scrap is recycled back into the production cycle, aligning with global ESG goals.
Expanded Stainless Steel is revolutionizing more than just the BBQ.
Our heavy-duty expanded grates are used in mass-scale smoking and dehydration facilities. The diamond mesh allows for 360-degree airflow, reducing processing time by up to 20% compared to solid trays.
Using 316L Marine-Grade stainless steel, our grates withstand salt spray and extreme humidity. Ideal for luxury cruise ship kitchen galleys and oil rig platforms.
Aesthetic meets function. Modern "Open Kitchen" restaurants utilize expanded metal for ventilation screens and custom grill stations that offer a futuristic, industrial look.
Widely used in petrochemical industry, light chemical industry, refinery. Recommended products: JG255/30/100, JG325/30/100, JG405/30/100.
From agriculture and animal husbandry to waste disposal and pharmaceutical industries, NJMM products provide the structural backbone.
Expanded metal is made from a single sheet of stainless steel, meaning there are no welds to break or rust over time. It offers superior heat distribution and is significantly easier to clean due to the lack of intersecting wires where carbon build-up occurs.
For most residential and commercial applications, 304 is excellent. However, if the factory or grill is located within 5 miles of a coastline, we recommend 316L (Marine Grade) to prevent pitting corrosion caused by salt air.
With our 12 automated production lines and 50,000-ton annual capacity, standard orders are processed within 15-20 days. Custom engineering solutions involving detailed CAD drawings may take 25-30 days.
Yes. Beyond manufacturing, NJMM offers engineering services, including detailed installation drawings and on-site support if required, ensuring our gratings integrate perfectly with your existing structures.
Trusted by industry leaders worldwide.













