A55 Rail
Product Overview
The A55 crane rail is a medium-profile rail from the German DIN 536 series (Crane Rail Type A), named for its 55 mm head width. It balances load capacity and cost efficiency and is widely used in light to medium–heavy industrial crane systems and material handling equipment.
Key points
Stable cross-section with a 55 mm head, 65 mm height and 150 mm base
Unit weight: 31.8 kg/m—higher load capacity than A45
Multiple material options (50Mn / 900A) to match different service conditions
Customizable lengths and surface treatments including hardening for extended service life
Product Advantages
Optimized cross-section — wide flat base (150 mm) and increased web thickness (31 mm) for superior stability and bending resistance.
Material flexibility — options from economical 50Mn to ultra-high-strength 1100 for tailored lifecycle and cost balance.
High manufacturing precision — DIN compliance and ±1% dimensional tolerance for reliable operation and interchangeability.
Custom services — length, hole patterns, surface treatment and head hardening available as required.
Technical Specifications
| Item | Specification |
|---|---|
| Standard | DIN 536-1-1991 (Hot-rolled flat-base crane rail, Type A) |
| Model | A55 (head width 55 mm) |
| Cross-section | 65 × 150 × 55 × 31 mm |
| Unit weight | 31.8 kg/m |
| Standard lengths | 5–12 m (custom lengths available up to 25 m by order) |
| Dimensional tolerance | ±1% (factory inspection standard) |
| Cutting tolerance | ±50 mm |
| Typical applications | Industrial crane rails |
Mechanical Properties
Surface Treatments & Customization Options
Lengths & machining
Standard lengths: 5–12 m
Special lengths: up to 25 m (by order; requires transport & handling confirmation)
Cutting tolerance: ±50 mm
Machining: drilling, milling, or fabricated mounting holes per customer drawing
Surface treatments
Epoxy coating — corrosion protection for humid or chemically aggressive environments
Phosphating — improves wear resistance and coating adhesion
Localized hardening / quenching — increases rail head hardness (optionally up to HRC 50–55) to extend service life
Typical Applications
- Industrial crane systems: workshop overhead cranes, gantry rails (high stiffness and bending resistance required)
Logistics and warehousing: automated storage systems, guided-rail AGVs (precision dimensions and wear resistance)
Ports & mining: yard cranes, heavy transport tracks (requires robust materials and surface protection)
Quality Control & Delivery Recommendations
Factory inspection: verify external dimensions, cross-section geometry, unit weight, surface condition, and hardness (if heat-treated).
Material certificates: chemical analysis report, tensile test report, and impact/other tests if requested.
Packaging: moisture-resistant film + wooden pallets or steel straps; head protection sleeves as needed.
Transport: long-item handling must include secure fixation and vibration protection; oversize lengths require special logistics planning.
After-sales & Technical Support
We can provide material test reports, heat-treatment certificates, drawing reviews, and on-site installation advice.
For samples, pricing or a tailored quotation, please provide:
expected annual volume, preferred material, standard/final length, and whether head quenching or surface coating is required.