Industrial Steel Grating Stair Treads: Complete JT Series Types, Features & Application Guide

2026-06-18

Introduction

Steel Grating Stair Treads are indispensable safety components for industrial stairways, fire escapes and access ladders across petrochemical plants, power stations, marine facilities and municipal projects. With superior load-bearing capacity, rapid drainage and outstanding anti-corrosion performance, they comply with global standards.

As a professional manufacturer with 33 years of experience, NJMM Ningbo Jiulong Machinery offers a full lineup of 8 standard JT series stair treads (JT1-JT8). These models differ in installation methods and front nosing designs to suit diverse working conditions. This article introduces each JT model in detail with a comparison table, elaborates on our manufacturing strengths and targeted application suggestions, helping global distributors and EPC contractors select ideal products for inventory and engineering projects.

1. Overview of 8 JT Series Stair Treads

We classify JT1 to JT8 based on two core factors: installation mode (welded or bolted) and front nosing style (no nosing, checkered plate nosing, anti-slip strip nosing, perforated plate nosing and vertical striped plate nosing). All products adopt premium Q235 carbon steel or 304/316 stainless steel. Standard hot-dip galvanization strictly follows GB/T13912 and ASTM A123, with zinc coating thickness over 85μm; 120μm thick galvanization is available for coastal and heavily corrosive areas. Both plain and serrated bearing bars are optional to meet varying anti-slip demands.

Welded type: High structural rigidity, cost-effective for fixed long-term staircases.
Bolted type: Easy to assemble, disassemble and maintain, ideal for modular or frequently renovated facilities.
Diverse nosing designs: Enhance edge durability and anti-slip performance for high-traffic industrial scenarios.

2. JT1-JT8 Stair Tread Detailed Comparison Table

3. Core Manufacturing & Quality Advantages of NJMM JT Series Treads

3.1 Premium Materials & Standard Craftsmanship

We select GB/T700-certified Q235 carbon steel and qualified stainless steel as raw materials. Fully automatic hydraulic welding lines create integrated structures, avoiding loose joints and deformation under long-term heavy loads. The standardized hot-dip galvanizing process ensures uniform coating and lasting rust resistance, cutting later maintenance costs significantly. Dimensional tolerance is controlled within ±0.5mm for perfect matching with various ladder frames.

3.2 Diversified Specifications & Strong Customization

Besides the 8 standard JT models, we support custom sizes, bearing bar pitches (30mm/40mm recommended) and surface types (plain/serrated/I-shape). All products are equipped with complete CE, ISO 9001 and material test certificates, smoothly passing customs clearance and meeting tender requirements for European, Southeast Asian and Middle Eastern projects.

3.3 Excellent Practical Performance

The hollow grating structure quickly drains rainwater, oil and dust, eliminating water accumulation and slip risks. Different nosing designs are tailored to different anti-slip and wear-resistance needs. Our JT series treads perform stably in high temperature, humidity, salt fog and chemical vapor environments.

4. Industry Application Recommendations

Energy & Petrochemical Industry: Prioritize JT3, JT5 and JT6. These sites feature oil stains, heavy foot traffic and complex environments, requiring reinforced anti-slip and load-bearing performance.
Municipal & General Industry: Choose cost-effective JT1 and JT2 for indoor staircases and public facilities.
Coastal & Marine Projects: Select JT4 or JT8 with thickened galvanization or stainless steel materials to resist salt fog erosion.
Chemical & Food Factories: JT5, JT6 and stainless steel versions are preferred, which are easy to clean and free from coating peeling contamination.

5. Why Cooperate with NJMM for JT Series Stair Treads

We maintain sufficient stock of all 8 JT models to guarantee timely delivery for bulk orders. As a one-stop supplier, we can match stair treads with steel gratings and safety handrails to optimize container loading and reduce logistics costs. Supported by stable sea and rail multi-channel logistics, we ensure reliable delivery amid fluctuating global freight.

Our professional technical team can provide targeted selection advice according to local climate, environmental conditions and load standards. We focus on long-term partnership and deliver consistent value to global distributors and EPC contractors.

Conclusion

Covering 8 full specifications, NJMM JT series stair treads can satisfy nearly all industrial and municipal staircase demands. Each model is designed for specific installation and usage scenarios, balancing safety, durability and cost efficiency.

Whether you need standard stocked products or customized solutions for special projects, we are ready to provide reliable support. Feel free to contact our team to get detailed product parameters and competitive quotations.