<div class=”breadcrumb”>Home > Products > <strong>Custom Engineering</strong></div>
Custom Engineering — OEM/ODM Steel Ladder Solutions | CS-ENG
<div class=”product-hero”>
<div class=”product-image”>
</div>
<div class=”product-summary”>
Model: CS-ENG
Service: OEM/ODM custom engineering and fabrication
Materials: Q235B, Q345B, SS304, SS316, duplex SS, Corten
Review Time: 24 hours from specification submission
MOQ: 5 units
<div class=”price-block”>
<span class=”price-label”>Custom Quote</span>
<span class=”price-value”>Per Project</span>
</div>
</div>
</div>
Custom Engineering Capabilities
| Parameter | Standard Range | Custom Range |
|---|---|---|
| Material | Q235B, Q345B, SS304, SS316 | Any structural steel, duplex SS, Corten, 904L |
| Width | 500mm / 600mm / 700mm | 400mm to 1,200mm |
| Height | 2-20m standard | Up to 40m with engineered supports |
| Rung Spacing | 300mm | 200mm to 400mm |
| Surface Treatment | HDG, brushed SS, pickled SS | Paint systems, powder coating, electropolish, duplex |
| Cage Design | Standard 800mm hoop | Custom diameter, non-circular, dual cage |
| Mounting | Wall bracket | Freestanding frame, column clamp, rail mount |
| Accessories | Gate, shield, platform | Custom platforms, interlocked gates, davit arms |
Design and Engineering Process
- Submit specification — Dimensions, material, environment, standards, reference drawings
- Engineering review (24h) — Feasibility assessment and technical approach
- CAD drawing — Dimensioned 2D CAD with material callouts and mounting details
- Drawing approval — Review, markup, and sign-off
- Production — 5-step QC: material certs, weld inspection (ISO 5817), dimensional check, surface treatment, pre-assembly
- Pre-shipment inspection — Photos and dimensional reports for your review
- VCI + vacuum-sealed packaging — Corrosion protection for ocean freight
- Documentation — Material certs, weld reports, dimensional reports, Declaration of Conformity
OEM vs ODM
| Service | OEM | ODM |
|---|---|---|
| Design | Client-provided | Dengtai-engineered |
| Drawings | Client-provided (PDF/DWG/DXF) | Dengtai-produced |
| Typical Lead Time | 15-25 working days | 30-45 working days |
| MOQ | 5 units | 5 units |
Transparent Pricing
| Cost Component | Basis |
|---|---|
| Material cost | Steel weight x market price of specified grade |
| Fabrication cost | Processing time x shop rate |
| Surface treatment | Area x treatment unit cost |
| Engineering (ODM) | Hours x engineering rate |
| Profit margin | 15% |
Applies to all projects over 100m total ladder length or 5+ units.
Project Examples
PETRONAS RAPID Refinery, Malaysia (2020): 35 heavy-duty caged ladders + 22 platforms. Q345B HDG + SS316 cage components. EN ISO 14122-4 with PETRONAS technical addendum.
EVN Vinh Tan Power, Vietnam (2021): 28 steel platforms + 16 inspection ladders. Heat-resistant paint over HDG, bolt-together modular design.
Frequently Asked Questions
<div class=”faq-accordion”>
What is the minimum order quantity?
MOQ is 5 units for custom designs. For prototype or single-unit projects, a minimum project charge applies. Contact us with your requirement for the most cost-effective approach.
How long does a custom project take?
OEM (client drawings): 15-25 working days. ODM (Dengtai design): 30-45 working days including CAD and approval cycles.
Can you match existing building colors?
Yes. RAL-matched architectural paint over galvanized substrate, or powder coat on stainless steel. Provide the RAL code with your inquiry.
What standards do custom ladders comply with?
We design to your specified standard: OSHA 1910.23, EN ISO 14122-4, AS 1657, BS 4211, or project-specific standards. Full compliance documentation provided.
</div>
Related Resources
Start Your Custom Project
OEM/ODM manufacturing. 24h engineer review. CAD drawings included.
Email: sales@dtsteelladder.com
WhatsApp: +86 155 1187 9488
<div class=”cta-section”>
Submit Custom Specification
View Standard Products
</div>
Content reviewed by Jouth Zhao, Senior Engineer, Dengtai Staircase Manufacturing Co., Ltd.
</script>