CRANE RAILS
Complete Crane Rail System Solutions
As a leading global supplier of international crane rail profiles and a professional provider of crane rail system solutions, Glory Rail offers high-precision crane runway rails and a complete set of crane rail fixings for heavy-duty crane runway rails and gantry crane rail systems. Our heavy-duty crane rails, combined with high-performance elastic pads and adjustable clamps, deliver exceptional load-bearing capacity, extended service life, and consistent operational safety in extreme industrial environments.
What is a Crane Rail System?
The crane rail system consists of crane rails, rail clamps, under-rail pads, steel base plates, anchor bolts, and a grout layer; it may also include rail welding procedures, expansion joint design, and installation tolerance control. This system is the cornerstone of safe and reliable crane operation—whether for gantry cranes or ship-to-shore cranes in ports, or for yard cranes in industrial facilities.
Rail Clamp (typically with a rubber tongue) — Secures the rail while allowing for elastic displacement during operation; it is the core component of crane rail fixings.
Under-Rail Pad — A soft cushion made of elastomeric material that distributes loads and reduces wear between the rail and the supporting structure.
Steel base plate — Provides additional support and stability for the rails; installed on top of the crane rail beam.
Anchor bolts — Secure the base plate to the foundation.
Grout layer — Fills the gap beneath the base plate to provide stability.
Glory Rail is a crane rail system solution provider with over 20 years of experience, offering a full range of crane rails and fasteners to customers worldwide.
Crane Rail Types & Standards Comparison
Types of Crane Rails by Standard
Crane rails are classified by cross-sectional shape and according to national crane rail standards. Glory Rail supplies a wide range of international crane rail cross-sections, including Chinese standard crane rails (QU Series), DIN/European standard crane rails (A Series), American standard crane rails (ASCE Series), Japanese standard crane rails (JIS Series), and Australian/South African standard crane rails (AS/ISCOR Series).
Standards Comparison Table
| Standard | Origin | Profiles | Material | Typical Application | Standard Length |
|---|---|---|---|---|---|
| QU Series | China (YB/T 5055-2014) | QU70, QU80, QU100, QU120 | U71Mn, U75V | Heavy-duty steel mills, foundries | 12m |
| A Series | Germany (DIN 536) | A45-A150 | 50Mn, U71Mn | Medium/heavy-duty, ports | 10/12/15m |
| ASCE Series | USA (ASTM/AREMA) | ASCE25-ASCE136 | 700/900A/1100 | North/Latin America | 6-12m, 12-25m |
| UIC Series | International (UIC860) | UIC50, UIC54, UIC60 | 900A/1100 | Europe, dual-purpose | 12-25m |
| JIS Series | Japan (JIS E1103) | 15kg-CR100 | Per JIS | Japan, SE Asia | 9-10m |
| AS Series | Australia (AS 1085) | 31kg-89kg | 900A/1100 | Australia, NZ | 8-25m |
| ISCOR Series | South Africa | 15kg-57kg | 700/900A | South Africa | 9-25m |
Crane Rail Specifications & Size Charts
Below is a comprehensive crane rail size chart covering all major standards. All crane rail dimensions have been verified against the original standard documents. For crane rail sizes not listed in the chart, please contact our technical team to discuss alternative options for custom-rolled crane rails.
| Size | Rail Height (mm) | Bottom Width (mm) | Head Width (mm) | Web Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| A45 | 55 | 125 | 45 | 24 | 22.10 |
| A55 | 65 | 150 | 55 | 31 | 31.80 |
| A65 | 75 | 175 | 65 | 38 | 43.10 |
| A75 | 85 | 200 | 75 | 45 | 56.20 |
| A100 | 95 | 200 | 100 | 60 | 74.30 |
| A120 | 105 | 220 | 120 | 72 | 100.00 |
| A150 | 150 | 220 | 150 | 80 | 150.30 |
| Size | Rail Height (mm) | Bottom Width (mm) | Head Width (mm) | Web Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| QU70 | 120 | 120 | 70 | 28 | 52.8 |
| QU80 | 130 | 130 | 80 | 32 | 63.69 |
| QU100 | 150 | 150 | 100 | 38 | 88.96 |
| QU120 | 170 | 170 | 120 | 44 | 118.1 |
| ASCE Rail | Head Width (mm) | Base Width | Rail Height | Waist Thickness | Nominal Weight (kg/m) |
|---|---|---|---|---|---|
| ASCE12 (12-lb/yd rail) | 25.4 | 50.8 | 50.8 | 6.35 | 5.95 (12 lbs/yd) |
| ASCE20 (20-lb/yd rail) | 34.1 | 66.7 | 66.7 | 6.4 | 9.92 |
| ASCE25 (25-lb/yd rail) | 38.1 | 69.85 | 69.85 | 7.54 | 12.2 |
| ASCE30 (30-lb/yd rail) | 42.86 | 79.37 | 79.37 | 8.33 | 15.2 |
| ASCE40 (40-lb/yd rail) | 47.62 | 88.9 | 88.9 | 9.90 | 19.84 |
| ASCE50 (50-lb/yd rail) | 54 | 98.43 | 98.43 | 11.11 | 24.85 |
| ASCE60 (60-lb/yd rail) | 60.32 | 107.95 | 107.95 | 12.3 | 30.1 |
| ASCE70 (70-lb/yd rail) | 61.91 | 117.48 | 117.48 | 13.1 | 34.5 |
| ASCE75 (70-lb/yd rail) | 62.71 | 122.2 | 122.2 | 13.5 | 37.2 |
| ASCE80 (80-lb/yd rail) | 63.50 | 127.00 | 127.00 | 13.89 | 39.82 |
| ASCE85 (85-lb/yd rail) | 65.09 | 131.76 | 131.76 | 14.29 | 42.3 |
| Type | Size | Height A (mm) | Width B (mm) | Weight (kg/m) |
|---|---|---|---|---|
| Flat Bar | 50×30mm | 30 | 50 | 11.775 |
| 70×40mm | 40 | 70 | 21.98 | |
| 100×60mm | 60 | 100 | 47.1 | |
| Square Bar | 50×50mm | 50 | 50 | 19.625 |
| 80×80mm | 80 | 80 | 50.24 | |
| 100×100mm | 100 | 100 | 78.5 |
Crane Rail Steel Grades & Mechanical Properties
The steel composition for crane rails is designed to provide high wear resistance and appropriate tensile strength. Strength ranges from 550 N/mm² to 1100 N/mm², with a typical range of 600 to 900 N/mm².
The selection of steel grade depends on the crane’s duty class and expected service life. Heavy-duty crane rails designed for high wear resistance require higher tensile strength grades (≥880 MPa) and surface hardness (HB 260–320)
| Steel Grade | Standard | Tensile Strength (MPa) | Surface Hardness (HB) | Typical Application |
|---|---|---|---|---|
| U71Mn | GB | ≥880 | 260–285 | QU70–QU120, general crane rails |
| U75V | GB | ≥980 | 280–320 | QU100/QU120, heavy-duty |
| 50Mn | DIN | ≥680 | 220–260 | A45–A75, medium-duty |
| 900A | EN/UIC | ≥880 | 260–300 | UIC60, ASCE, AS series |
| 1100 | EN/UIC | ≥1100 | 300–340 | Heavy-duty, high wear |
| 700 | EN | ≥690 | 200–240 | Light-duty, BS series |
Common Industry Pain Points in Crane Rail Operations
Based on industry data from steel mills, ports, cement plants, and power plants, as well as on-site experience, the following pain points represent the most common challenges in the installation and maintenance of crane rails:
Fastener Loosening and Failure
Over 68% of bridge crane rail failures are caused by loosening of clamping plate bolts or fatigue cracking of fishtail plates. This is the leading cause of unplanned downtime across various industries.
Failure Rate: 68% | Average Loss per Downtime Event: 470,000 yuan
Glory Rail Solution: Elastic composite clamping plates with vulcanized rubber clamping tabs, tested for over 2 million fatigue cycles. Bolt-on and welded solutions are available according to working class (M5–M8).
Rail Gnawing (Lateral Wear)
Rail misalignment, gauge deviation, and wheel skew cause continuous friction between the wheel flange and the rail side. This leads to vibration, accelerated wheel wear, and foundation issues.
Affects ports & steel mills most severely | Cascading damage to wheels and structure
Glory Rail Solution: Pre-installation laser alignment and matched wheel-rail profiling. Precision tolerance control for Custom crane rail design for port container terminals.
Fatigue Cracks and Rail Breakage
Approximately 73% of unplanned downtime is caused by early-stage fatigue cracks that were not identified in a timely manner. Cracks originate at the rail base and weld joints under cyclic heavy loads.
73% Unplanned Downtime | Heavy-duty crane rails in steel mills pose the highest risk
Glory Rail Solution: High-strength steel grades (U75V,≥980 MPa) + optimized welding processes. Recommended ultrasonic testing intervals to enable early detection.
Weld Joint Defects
Defects and indentations at rail joints are the primary determinants of crane rail service life. Fatigue cracks in the joints propagate from the rail web surface under repeated wheel loads.
Joints = Primary Factor Affecting Service Life | Particularly Critical for Long-Span Crane Runway Rail Systems
Glory Rail Solution: Professional weld joint fabrication + post-weld heat treatment. Fishtail plate backup solutions are provided for all critical joint locations.
Coastal/Chemical Environmental Corrosion
Saltwater exposure in ports and chemical exposure in plants accelerate galvanic corrosion at clip-bolt interfaces. This reduces effective cross-section and causes bolt seizure.
Accelerated Electrochemical Corrosion | Impacts on Port Gantry Crane Rail Track Systems
Glory Rail Solution: Hot-dip galvanized fasteners with anti-corrosion painting and galvanizing processing. Stainless steel clip options for extreme environments.
Sourcing Infrequently Rolled Rails
Steel mills prioritize the production of standard products, and specialized crane rail cross-sections may not always be available. This leads to procurement delays and disruptions in project schedules.
Specialized profiles = low priority | Infrequently rolled crane rail alternatives urgently needed
Glory Rail Solution: Over 20 years of experience in the Chinese supply chain + inventory reserves. Rapid recommendations for alternative profiles based on equivalent load-bearing capacity.
Facing any of these challenges?
How to Choose the Right Crane Rail
Typically, crane manufacturers recommend specific crane rail models, but if no recommendation is provided, the appropriate model can be determined based on the crane’s specific parameters. The selection is primarily based on three factors: wheel tread dimensions, crane load, and installation environment.
Step 1: Matching the Rail Head Width to the Wheel Tread
The rail head width of the crane rail should match the wheel tread of the crane. A mismatch in rail head width will result in uneven contact, accelerating wear on both the wheels and the rails.
Step 2: Determine the Web Thickness Based on the Load
When the rail head width is consistent, the web thickness determines the track’s load-carrying capacity. For heavy-duty crane rails, specialized rails with thick webs should be selected, such as QU crane rails and DIN 536 crane rails.
Step 3: Select the Steel Grade Based on the Environment
For high-temperature environments (steel mills), select heat-resistant steel grades; for corrosive environments (ports, chemical plants), select corrosion-resistant steel grades and apply a protective coating. For custom crane rail designs for port container terminals, consider salt spray exposure and high-frequency operation.
| Parameter | Specification | Notes / Tolerance |
|---|---|---|
| Type Code | SL (Double Rim) | Also known as double flange crane wheel |
| Wheel Tread Diameter (D) | 300 – 2000 mm (custom available) | Standard sizes: 315, 400, 500, 630, 800, 1000 mm |
| Wheel Tread Width (B1) | 80 – 220 mm | Matched to rail head: QU70, QU80, QU100, QU120 |
| Rim Height | 25 – 30 mm | Standard height; custom available |
| Bore Diameter (d) | 50 – 320 mm | Bearing bore tolerance: H7 / H8 as per drawing |
| Wheel Load Capacity | 5 – 200 tons | Calculated per FEM/DIN standards |
| Material Options | #65 / 65Mn / 42CrMo / ZG340-640 / GS-70 | Other alloy steels on request |
| Production Process | Forging / Casting + CNC Machining | Forged for heavy duty; cast for medium loads |
| Surface Hardness | HB 330 – 380 (tread & rim) | Double rim crane wheel HB330-380 hardness specification |
| Hardening Depth | ≥ 20 mm | Induction quenching + tempering |
| Bearing Type | Rolling / Sliding bearing | Cylindrical roller, spherical roller, or plain |
| Surface Treatment | Coating / Heat treatment / Plating | Painting, zinc plating, or as specified |
| Applicable Standards | DIN, ISO, EN, AISE, JIS, BS, API, GOST, GB/T | Manufactured to customer’s specified standard |
| Processing Accuracy | Dimensional tolerance up to 0.01 mm | Precision CNC machining with in-process gauging |
| Customization | Drawing-based manufacturing | Material, size, hardness — all customizable |
Not sure which rail type is right for your project?
Installation Solutions & System Components
Glory Rail offers two crane rail installation solutions based on the duty class:
Option 1: Continuous Welding (M5 Duty Class)
Continuous steel base plate + welded pressure plate + continuous spacer plate. Suitable for light- to medium-duty trolley track systems requiring the smoothest running surface. The welded pressure plate eliminates the risk of bolt loosening, making it particularly suitable for overhead crane rail applications involving frequent, low-impact movement.
To reduce direct wear and impact, high-strength rubber pads (3–6 mm thick, reinforced with steel plates, Shore A 85°) are laid beneath the rail.
Option 2: Bolt-Fastened (M6/M7/M8 Duty Class)
Separate steel base plate + bolted clamping plate (with rubber tongue) + separate spacer plate. Suitable for heavy-duty crane rail systems in steel mills, ports, and cement plants. The bolted design facilitates assembly and disassembly for maintenance—which is critical in high-load environments where crane rail fixings require regular inspection.
To reduce direct wear and impact between the rail and the underlying crane rail beam, Glory Rail recommends installing high-strength rubber pads (3–6 mm thick, steel-reinforced, Shore A 85°) beneath the rail.
Crane Rail Processing Services
Glory Rail provides comprehensive in-house machining services for all crane rail standards, ensuring full customization capabilities for the complete supply of crane rails and fasteners.
Cutting and Beveling
Straight cuts and 45° bevel cuts on crane rails, for butt joints.
Tolerance: ±1 mm; Angle: 30°–60°; All standards
Drilling
Custom drilling services for the installation of crane rail fixings.
Ø12–40 mm, tolerance: ±0.5 mm; countersinking available
Bending and Curves
Cold-forming process used for curved sections of gantry crane rail tracks.
Minimum radius: 25 m. Cold-forming process: QU/DIN 536/ASCE
Cutting and Beveling
Straight cuts and 45° bevel cuts on crane rails, for butt joints.
Tolerance: ±1 mm; Angle: 30°–60°; All standards
Corrosion Protection
Epoxy coating and hot-dip galvanizing for port crane rail track systems.
Coating dry film thickness: 120–200 μm; Galvanizing thickness: 70–120 μm
Custom Machining
Surface milling and cross-sectional modifications to create alternatives for non-standard rolled crane rails (Infrequently rolled crane rail alternatives).
Non-standard cross-sections suitable for retrofit and replacement projects
CLIENTS we’ve worked with
How to Work With Us
Inquiry & Technical Alignment
Please submit your technical specifications (such as rail model, length, and custom processing requirements) via the form. Our technical experts will evaluate your request within 24 hours and provide you with precise technical support.
Tailored Quotation & Contract
We provide transparent, competitive commercial quotes and technical drawings. Once all parameters, commercial terms, and delivery dates have been confirmed, both parties will sign a formal cooperation agreement.
Precision Manufacturing & QC
Production is carried out under a rigorous ISO 9001 quality management system. Every step of the process—from raw materials to cutting and drilling—undergoes strict internal quality inspections, and we fully support on-site inspections by third-party organizations (such as SGS and BV).
Packaging & Global Shipping
The rails are packaged in rust-proof, heavy-duty bundles to ensure they arrive undamaged during ocean transport. We arrange the most cost-effective global logistics and provide complete customs clearance documents and a Material Test Certificate (MTC).
Get In Touch
After submitting the form, your dedicated account manager will contact you immediately to provide full-process technical support from selection to installation.
Your Expert in Crane Rail Solutions
To help us provide a faster and more accurate tailored solution, please consider including:
1. Rail Specifications: Rail section type, profile, or standard, and your required unit length.
2. Order Quantity: Total quantity of rails, matching fasteners, or related equipment needed.
3. Material & Grade: Specific steel material requirements or performance grades.
4. Technical Files: Any custom technical requirements, drawings (CAD/PDF), or project specifications.
Don’t have all the details? No worries! Just leave us a message with what you know, and our experts will guide you through the process.