Product Overview
Press-locked steel grating stair treads are manufactured using high-pressure hydraulic locking technology. Designed for global projects where high structural integrity, exact dimensional tolerances, and refined architectural aesthetics are paramount.
Unlike conventional welded gratings, press-locked treads use high-pressure hydraulic technology to insert cross bars into pre-notched bearing bars-creating a seamless, weld-free, high-strength connection that will not deform or corrode around weld points.
Why Choose Press-Locked Over Welded Stair Treads?
|
Feature / Performance |
Press-Locked Stair Treads |
Standard Welded Stair Treads |
|
Surface & Aesthetics |
Smooth, flush, weld-free, clean geometric look |
Visible weld spatter, rougher joints |
|
Dimensional Accuracy |
High-precision hydraulic press (Tolerance ±0.5 mm) |
Subject to heat distortion during welding |
|
Architectural Suitability |
Ideal for commercial, public, and high-end industrial design |
Best suited for purely functional industrial platforms |
|
Corrosion Resistance |
Uniform zinc coating without thermal weld cracks |
Zinc may pool or fail early at weld joints |
|
Safety Compliance |
High slip resistance (R11 – R13 rating available) |
Basic anti-slip performance |
Key Product Features
Weld-Free Mechanical Interlock: Cross bars are permanently locked into bearing bars under heavy hydraulic pressure, providing structural rigidity and high resistance to lateral impacts.
Certified Anti-Slip Safety: Available with serrated bearing bars and perforated or checkered nosing plates (compliant with AS 1657 / DIN standards) to ensure maximum traction under rain, oil, or icy conditions.
Maximum Ventilation & Drainage: The precise open-grid design prevents the accumulation of water, snow, and debris, significantly lowering maintenance costs.
Heavy Corrosion Protection: Hot-dip galvanized to international standards, ensuring long-term, maintenance-free service in harsh marine or chemical environments.
Custom End-Plates for Easy Bolting: Pre-punched end plates allow for rapid, precise site installation without field welding.
Technical Specifications & Standards
Manufacturing strictly adheres to international industrial standards:
|
Parameter |
Specifications & Available Options |
|
Manufacturing Standards |
DIN 24537-1, BS 4592, AS 1657, ANSI/NAAMM MBG 531 |
|
Galvanizing Standards |
ISO 1461, ASTM A123 / A123M |
|
Material Options |
Carbon Steel: Q235B / S235JR / A36 Stainless Steel: AISI 304, 316, 316L Aluminum: 6063-T6 / 5052 |
|
Bearing Bar Types |
Plain Flat Bar / Serrated Bar / I-Bar |
|
Bearing Bar Sizes |
Height: 20 mm – 150 mm | Thickness: 2 mm – 10 mm |
|
Cross Bar Types |
Flat Bar, Round Bar, Twisted Square Bar |
|
Surface Treatments |
Hot-Dip Galvanized, Powder Coated, Electropolished (SS), Painted |
|
Nosing Options |
Checkered Plate Nosing, Perforated Anti-Slip Nosing, Serrated Flat Bar Nosing |
|
Fixing Method |
Bolted (with end plates), Welded, or Mounting Clips |
Material & Application Guide
|
Material Category |
Primary Application Areas |
Key Material Advantage |
|
Carbon Steel (Hot-Dip Galvanized) |
Industrial platforms, power stations, logistics parks, outdoor stair towers |
Most cost-effective solution with robust corrosion resistance against weathering |
|
Stainless Steel (304 / 316 / 316L) |
Chemical processing plants, food & beverage facilities, offshore oil platforms, coastal infrastructure |
Exceptional acid/alkali resistance, extreme hygiene compliance, and long service life in marine environments |
|
Aluminum |
Weight-sensitive structures, architectural walkways, pedestrian bridges |
High strength-to-weight ratio and natural atmospheric corrosion resistance |
Quality Assurance & Export Standards
To eliminate purchasing risks for overseas buyers, rigorous quality control processes are implemented at every stage:
|
QA Phase |
Inspection Standard / Test Method |
Quality Commitment |
|
Material Traceability |
MTC / EN 10204 3.1 |
100% traceably sourced with original mill test certificates |
|
Load-Bearing Capacity |
Batch Load Testing |
Strictly compliant with design deflection standards under dynamic loads |
|
Corrosion Defense |
ISO 1461 Magnetic Zinc Gauge Test |
Average zinc coating thickness verified at ≥ 70 µm |
|
Export Packaging |
Sea Freight Protection Standard |
Heavy-duty steel pallets, edge protectors, plastic wrap, and steel strapping |
FAQ
Q: What information is needed to get an accurate quote?
A: To provide an exact quote, please provide:
Stair tread dimensions ($L \times W$) and bearing bar size ($H \times T$)
Mesh pitch / opening size
Material type and surface treatment
Quantity and anti-slip nosing requirements (if any)
Project drawings (PDF or DWG format if available)
Q: Can stair treads be manufactured according to project CAD drawings?
A: Yes. Over 80% of production is fully customized. Engineering teams can review shop drawings or assist in designing stair treads that match your exact frame dimensions and load requirements.
Q: Are Mill Test Certificates (MTC) and inspection reports provided before shipment?
A: Yes. Every shipment comes with a complete MTC, dimensional inspection logs, and zinc coating thickness test reports. Independent third-party inspections can also be arranged upon request.
Q: What is the typical lead time for export orders?
A: Standard production time is 15 to 25 days depending on order volume and galvanizing requirements. Urgent project schedules can be accommodated upon request.
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