Overview
The Escalator Universal Steps are modular stepping units installed on escalator step chains to form a continuous, moving walking surface.
Technical Specifications
|
Category |
Specification |
|
Standard Widths |
600 mm / 800 mm / 1000 mm |
|
Incline Compatibility |
30° / 35° |
|
Material |
ADC12 aluminum alloy / structural carbon steel |
|
Chemical Control |
Fe content < 1.3% (aluminum alloy) |
|
Unit Weight |
9.2 kg (800 mm aluminum model) |
|
Tread Geometry |
Groove width 6.0 mm |
|
Riser Design |
Standard global safety code compliant depth |
|
Fatigue Life |
> 5,000,000 load cycles |
Key Features
Load Resistance: Structural reinforcement ribs withstand vertical static loads up to 4.5 kN at the step center with deflection under 2 mm, meeting EN 115 structural safety margins for public transit.
Slip Resistance: Micro-grooved cleat design delivers a wet slip resistance value (SRV) exceeding 45, validating performance in outdoor rain-exposed environments and high-traffic metro stations.
Surface Protection: 120-micron electrostatically applied polyurethane coating resists peeling under continuous foot traffic, maintaining structural integrity over a 10-year service life in category-1 transport hubs.
Anti-Entrapment: 8 mm pitch and 10 mm depth optimize clearance at the landing transition zone, blocking foreign object entry and clothing entrapment.
Demarcation Stability: High-impact, flame-retardant yellow plastic inserts withstand passenger impact and chemical cleaners without cracking, ensuring passing results during annual safety inspections.
OEM & Custom Engineering
Technical 2D/3D engineering drawings are converted into functional casting samples within 45 business days for field testing.
Cast-in logistical tracking data, part numbers, or private labels are integrated directly into the underside structural matrix during die-casting.
Customizable gusset thicknesses and optional hard anodizing protect steps in coastal networks with high salt-spray or transit applications exceeding a 30-meter vertical rise.
Manufacturing Capabilities
Precision Machining: Horizontal CNC machining centers hold roller shaft alignment within 0.05 mm, mitigating chain snake motion and premature track wear.
Batch Traceability: Laser-etched barcodes on the inner side-frame link each step to its specific aluminum alloy melt batch and mechanical testing record.
Life-Cycle Cost (LCC) Optimization: Heavy-duty construction lowers overall LCC by reducing mid-lifecycle chain tensioning adjustments, component replacements, and revenue losses from unscheduled escalator downtime.
OEM Model Interchangeability: 1:1 dimensional matching with identical attachment points and tracking paths for Otis (506 NCE, 510 NPE), Schindler (9300, 9500), ThyssenKrupp (Velino, Tugela), and Kone (TravelMaster, TransitMaster).
Supply Chain Support
MOQ & Scalability: Standard production MOQ is 100 units for standard widths, and 500 units for custom configurations. Monthly capacity of 35,000 completed steps supports 30-day dispatch for metro line modernization batches.
Export Packing: Shipped in ISPM-15 heat-treated wooden crates with VCI anti-rust barrier packaging to block moisture damage during ocean freight.
Delivery Terms: Direct loading from Shanghai or Ningbo ports under FOB, CIF, or DDP terms to regional parts hubs.
VMI Safety Stock: Dedicated buffer stocks are allocated for long-term contract partners to enable 48-hour dispatch for emergency transit shutdowns.
Compliance
Safety Standards: Certified compliance with European EN 115-1 and North American ASME A17.1, verified by stamped third-party type-test reports.
Environmental Testing: Surface finishes endure 720 hours of Neutral Salt Spray (NSS) testing, achieving Rating 10 per ISO 9227 with zero blistering or red rust breakthrough.
Structural Defect Screening: 100% of step structures undergo X-ray radiographic inspection and destructive torsional stress testing to identify internal porosity and fatigue under off-center loading.
Fire Safety: Yellow boundary inserts carry a verified UL 94 V-0 flame retardancy rating, complying with underground transit tunnel fire codes.
FAQ
Q: What is the expected service life under daily metro operation?
A: Under Category I duty cycles (18–20 hours/day), aluminum steps typically reach 10–15 years before tread wear or coating degradation requires replacement. High-traffic stations above 60,000 passengers/day generally fall closer to the lower end of this range.
Q: Have these steps been installed in real metro or transit projects?
A: Units are running in subway and shopping mall escalator fleets across Southeast Asia and the Middle East. Project references with installation dates are available under NDA.
Q: How do these compare to sourcing directly from Otis or Schindler?
A: Lead times run 3–5 weeks versus 12–20 weeks through OEM spare channels, at 25–40% lower unit cost with equivalent EN 115 type-test certification and 1:1 dimensional compatibility.
Q: How long does a full step replacement take on-site?
A: A trained two-person team can swap a full step band on a standard 15–20m escalator in 4–8 hours. Pre-matched attachment points eliminate on-site drilling or modification.
Q: What is the failure rate in mass transit deployments?
A: In long-term deployments, the defect-related failure rate is maintained below 0.3% under controlled maintenance programs.
Q: Can you supply emergency stock if steps fail unexpectedly?
A: VMI buffer stocks for long-term contract partners enable 48-hour dispatch. For non-contract buyers, standard widths (600/800/1000mm) ship within 5 business days from finished-goods inventory.
Q: How is slip resistance maintained over long-term use?
A: Regular cleaning with non-abrasive agents helps extend friction performance.
Q: What happens if a step arrives with casting porosity or structural defects?
A: Every step undergoes 100% X-ray radiographic inspection before shipment. If a defect passes through, replacement units are dispatched within 48 hours of photo verification.
Q: Can steps be tracked for maintenance history?
A: Yes, each unit is laser-marked with batch-level traceability codes linked to production and testing records.
Q: What documentation is needed for transit authority approval?
A: Every shipment includes EN 115-1 and ASME A17.1 type-test reports, X-ray inspection records, salt spray certificates, and UL 94 V-0 fire compliance.
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