CR73 Crane Rail
Standards: JIS E1103-91 / JIS E1101-93
Core Advantages: High Wear Resistance / Fatigue Strength / Precision Fit for Crane Operations
Product Positioning & Application Scenarios
CR73 rail is a Japanese-standard (JIS) crane-specific rail section, designed exclusively for overhead cranes, gantry cranes, and heavy lifting equipment. It is not intended for railway mainline use. The rail is named for its theoretical weight of 73.3 kg/m.
Applicable to the following scenarios:
Overhead cranes and gantry cranes in workshops and manufacturing facilities
Port container cranes and bulk handling cranes
Heavy-duty gantry cranes and cantilever cranes in logistics/warehousing
Metallurgy, mining, and other high-intensity industrial lifting systems
Technical Specifications
| Parameter | Specification | Engineering Notes |
|---|---|---|
| Head Width | 100 mm | Match with crane wheel tread width; well-suited to Japanese mid-size crane wheels |
| Height | 135 mm | Affects clearance with guide assemblies; reserve 5–8 mm safety gap |
| Web Thickness | 32 mm | Main structural load-bearing section; suitable for 30–80 t cranes |
| Base Width | 140 mm | Used for clamps/bolting; ensure compatibility with embedded foundation channels |
| Theoretical Weight | 73.3 kg/m | Key input for structural load calculations and civil foundation design |
| Standard Length | 9–12 m (custom 8–25 m) | Longer custom lengths reduce joints and improve smooth crane motion |
Core Performance Indicators
Tensile Strength ≥ 880 MPa, withstanding heavy impact loading
High wear resistance; head hardness extends service life by over 30% vs. standard light rails
Superior fatigue resistance, designed for repetitive, high-frequency crane travel
Hot-rolled section, delivering tight dimensional tolerances for smoother crane operation
Reliable Supply & Custom Engineering Services
Customization: 6–15 m lengths, pre-drilled holes, beveled ends to reduce on-site processing
Lead Time: 3–5 days for in-stock items; 7–15 working days for customized orders
Delivery: Multi-warehouse nationwide distribution; dedicated line/vehicle options to prevent deformation
Quality Assurance: Third-party testing available; unconditional replacement for non-conforming dimensions/materials
After-Sales Support
Quality Guarantee: Free replacement for any out-of-spec material/geometry
Technical Support: Installation spacing, anchoring, and alignment guidance at no cost
Logistics Support: Secure packaging and handling to ensure damage-free delivery
Warranty: 1-year warranty under normal operating conditions (non-human damage)
Comparison with Similar Crane Rails
| Category | CR73 (JIS) | QU80 (GB) | A100 (DIN536) |
| Standard | JIS E1103-93 / E1101-93 | GB/T 24460-2009 | DIN536 |
| Head Width (mm) | 100 | 80 | 100 |
| Height (mm) | 135 | 130 | 95 |
| Web Thickness (mm) | 32 | 32 | 60 |
| Base Width (mm) | 140 | 130 | 200 |
| Weight (kg/m) | 73.3 | 63.69 | 74.3 |
| Material | U71Mn | U71Mn | U71Mn |
| Tensile Strength | ≥880 MPa | ≥880 MPa | ≥880 MPa |
| Typical Crane Capacity | 30–80 t | 20–50 t | 50–120 t |
| Key Strengths | Strong fatigue performance; best match to JIS crane systems | High domestic compatibility | Wide base; superior impact resistance |
| Recommended For | Japanese/domestic mid-size cranes, multi-condition custom projects | Standardized industrial sites | Ports, mining, high-impact heavy cranes |
FAQs
Q:What is the typical lead time?
A:In-stock orders: 3–5 working days. Customized (lengths, pre-drilling, beveling): typically 7–15 working days from order confirmation. Confirmed lead times are provided at quotation.
Q:What quality tests and certificates are provided?
A:Material certificates, tensile/hardness test reports, and third-party inspection reports are available. Customers may request third-party verification prior to acceptance.
Q: Do you offer anti-corrosion or coating options?
A:We can supply rails with surface treatments. Coating options depend on environmental client and should be specified at order.