Featured Product Lines
Explore our core walkway grating product series — precision-engineered to meet the demanding requirements of polymer and plastic extrusion screening environments, offering unmatched durability, load capacity, and chemical resistance.
Industry Overview
The global polymer and plastic extrusion industry is undergoing rapid expansion, driven by surging demand in packaging, automotive, construction, and electronics sectors. As production facilities scale up, the need for reliable, safe, and chemically resistant walkway grating systems has never been more critical.
Core Advantages
Polymer and plastic extrusion environments expose grating to aggressive chemicals, solvents, and high-temperature resins. Our FRP and stainless steel grating products are engineered to withstand prolonged chemical exposure without degradation, ensuring long service life and minimal maintenance costs.
Accurate aperture sizing is critical in polymer screening applications to separate pellets, granules, and melt residues efficiently. Our grating is manufactured to tight tolerances, enabling consistent particle separation and preventing contamination in downstream extrusion processes.
Industrial walkways in extrusion plants must support heavy equipment loads, foot traffic, and dynamic vibration from extruders. Our steel and FRP grating panels meet international load standards, providing safe and stable walkway platforms across all production floor configurations.
Proximity to hot extruder barrels, die heads, and melt streams demands grating materials with high thermal tolerance. Our fiberglass FRP grating options include flame-retardant grades that comply with fire safety regulations in polymer processing facilities.
Spilled polymer pellets and lubricant residues create hazardous slip conditions on walkways. Our grating features integrated anti-slip grit surfaces and open-mesh designs that allow debris to fall through, maintaining a clean, safe walking surface at all times.
Every polymer extrusion plant has unique spatial requirements. We offer full customization of panel dimensions, bar spacing, mesh openings, and surface finishes to match your specific walkway layout, equipment clearances, and operational needs.
Market Trends
The polymer and plastics manufacturing sector is increasingly prioritizing sustainability. This is reshaping walkway grating specifications — with a clear shift toward lightweight FRP (Fiber Reinforced Polymer) grating that reduces structural load requirements and lowers the overall carbon footprint of facility construction.
FRP grating requires no painting, resists rust, and lasts 2–3× longer than carbon steel in chemically aggressive environments — making it the preferred choice for new polymer plant installations worldwide.
Application Scenarios
From raw material handling to finished product packaging, walkway grating plays a critical safety and operational role at every stage of the polymer extrusion process. Below are the key application zones where our grating delivers maximum value.
Operators must safely access elevated hopper platforms for polymer pellet loading and material changeovers. Heavy-duty steel bar grating platforms provide stable, anti-slip access while allowing dust and pellet debris to fall through — keeping platforms clean and reducing fire risk from accumulated polymer dust.
Screen changers and die heads require regular maintenance access in hot, chemically active environments. Fiberglass FRP grating is the ideal choice here — providing thermal insulation underfoot, chemical resistance to purging compounds, and non-sparking properties critical near flammable polymer gases.
Post-extrusion cooling troughs and water baths create persistently wet, humid walkway conditions. Fiberglass grating with closed-molded surfaces prevents water absorption, eliminates corrosion, and maintains anti-slip performance even when wet — essential for operator safety in these high-moisture zones.
Pelletizers generate significant volumes of plastic granules, fines, and water mist. Walkway grating installed around pelletizer stations must provide effective particle screening — allowing undersized fines to pass through while supporting operator foot traffic and equipment maintenance access.
Multi-level polymer processing plants rely on elevated walkway platforms along conveyor lines, transfer chutes, and blending systems. Modular steel grating panels enable rapid installation of custom-width platforms with integrated toe boards and handrail mounting points for full OSHA compliance.
Recycled polymer compounding facilities handle highly variable, often contaminated material streams. Expanded metal grating provides robust, low-maintenance screening surfaces that resist clogging from irregular-shaped regrind particles while delivering the structural strength needed for heavy-duty industrial walkways.
Technical Insight
Selecting the appropriate walkway grating material for polymer and plastic extrusion screening is a critical engineering decision that directly impacts facility safety, operational efficiency, and total cost of ownership over the grating's service life.
Steel grating offers superior structural performance and is the industry standard for heavy-duty extrusion plant walkways. Galvanized or stainless steel options provide enhanced corrosion protection suitable for most polymer processing environments.
FRP grating has emerged as the premium choice for chemically aggressive zones, offering a 25–30 year service life with virtually zero maintenance — delivering a compelling ROI despite higher initial material costs.
Expanded metal grating bridges the gap — providing excellent screening performance, good load capacity, and cost efficiency for medium-duty applications such as mezzanine decking and conveyor-side platforms in plastic processing plants.
About Jinnuo
Shanghai Jinnuo Metal Products Co., Ltd. is a second-generation, family-owned enterprise founded in 1991. Beginning as a general wire mesh manufacturer primarily producing stainless steel wire mesh, Jinnuo has grown into a comprehensive international metal product supply complex serving industries worldwide.
With over 30 years of manufacturing and exporting experience, Jinnuo has evolved from a single-product manufacturer into a multi-category industrial metal product supplier. Our facilities include dedicated welding workshops, punching workshops, weaving workshops, and a professional design team capable of delivering fully customized product solutions for polymer and plastic extrusion screening applications.
High standard quality and professional product customization services have earned recognition from global customers across more than 50 countries — making Jinnuo a reliable partner for industrial walkway grating procurement worldwide.
Contact Us View ProductsWhy Choose Jinnuo


High standard quality and professional product customization services have won recognition from global customers. We have invested heavily in expanding our manufacturing capabilities — operating dedicated welding, punching, and weaving workshops alongside a professional design team for personalized product customization.
With over 20 years of manufacturing and exporting experience, Jinnuo has evolved from a single stainless steel mesh manufacturer to an international metal product supply complex — delivering walkway grating solutions for polymer and plastic extrusion screening to clients across Europe, North America, Southeast Asia, the Middle East, and beyond.
Complete Product Range
From standard bar grating to specialized FRP and expanded metal solutions, our full product range covers every walkway grating and screening requirement in polymer and plastic extrusion manufacturing environments.

Our mission is to serve the industries we work with through continuous improvement, friendly personal service, and close collaboration with our customers. Let us help you develop the ideal walkway grating and screening solution for your polymer or plastic extrusion facility.
📩 Send Inquiry Now