What is the weight per meter of KP140 crane rail?
May 14, 2026
What is the weight per meter of KP140 crane rail?
The theoretical weight of the GOST Standard KP140 crane rail is 141.7 kg/m.Because of its massive cross-section, the KP140 is one of the heaviest rail profiles in the industrial sector, designed specifically to handle the extreme vertical loads found in port terminals and heavy metallurgical plants.
Weight and Dimensional Correlation
The high weight per meter is a direct result of the rail's reinforced dimensions:
- Web Thickness: At 38mm to 58mm, the web is significantly thicker than standard rail profiles, providing the necessary shear strength to prevent structural failure under 100-ton wheel loads.
- Head and Base Width: The matching 170mm base and 140mm head contribute to the bulk of the steel volume, ensuring the rail acts as a rigid, stable beam.
|
Size |
Rail height(mm) |
Bottom Width(mm) |
Head Width(mm) |
Web Thickness(mm) |
Weight(kg/m) |
|
KP140 |
170 |
170 |
140 |
58 |
141.7 |
Logistical Impact of KP140 Rail Weight
The mass of the KP140 crane rail-weighing in at 141.7 kg/m-is a primary factor in project planning. Because it is one of the heaviest standard profiles in the industrial sector, its logistics require specific equipment and strategic loading to ensure safety and cost-efficiency.
1. Shipment and Container Loading
The weight and length of the KP140 profile dictate the type of vessel and container used for global transit.
- 40ft Container Standard: A standard 12-meter KP140 rail weighs approximately 1,700.4 kg (1.7 metric tons). Given a typical container payload limit of 26 to 28 tons, a single 40ft container can accommodate roughly 15 to 16 pieces.
- The 20ft Incompatibility: It is a common logistical error to overlook length constraints; 12-meter rails cannot fit into 20ft containers (which have an internal length of ~5.89m). For shorter project segments or 6m rails, 20ft containers are viable, but 12m sections are strictly for 40ft GP/HC containers or Flat Racks.
- Breakbulk Shipping: For large-scale infrastructure projects (e.g., a 2km port terminal runway), shipping via breakbulk vessels is often more economical than containerization, as it allows for the handling of massive tonnages without the tare weight of individual containers.
2. Specialized Handling Requirements
Due to the sheer density of the steel, standard warehouse equipment is often insufficient for KP140 rails.
- Lifting Equipment: Standard forklifts are generally unsafe for handling bundles of KP140. Site teams must utilize heavy-duty forklifts (minimum 5-10 ton capacity) or overhead gantry cranes.
- Spreader Beams: To prevent the 12-meter rails from bowing or experiencing permanent "set" during lifting, spreader beams should be used. This ensures the weight is distributed evenly and prevents the steel strapping from snapping under tension.
- Storage Stability: On-site storage requires a level, compacted foundation. The weight of stacked KP140 rails can easily cause soil subsidence, leading to rail warping if the dunnage (support blocks) is not perfectly aligned.
3. Impact on Installation Logistics
The weight affects the speed and labor required for the installation of the track.
- Manual Handling Prohibited: Unlike light rails (P18 or P24) which can sometimes be nudged into place by hand, the KP140 requires mechanical positioning at every stage.
- Fastener Durability: The weight of the rail, combined with the dynamic wheel loads it supports, requires heavy-duty soleplates and adjustable clips. These fasteners must be pre-staged along the runway, adding to the total tonnage of the logistical delivery.
FAQ
- Is 141.7 kg/m the exact weight for all KP140 rails?
141.7 kg/m is the theoretical weight defined by the GOST 4121-96 standards. Actual weights may vary slightly within a standard tolerance (usually ±3–5%) depending on the specific manufacturing batch and the precise chemical density of the U71Mn GOST KP140 crane rail steel.
- How does the weight of KP140 compare to KP120?
The KP120 rail has a theoretical weight of approximately 129 kg/m. The 12.7 kg/m difference in the KP140 Rail comes from its wider head (140 mm) and thicker web, providing significantly higher load capacity for the heaviest crane classes.
- What lifting equipment is needed for a 12m KP140 rail?
A single 12m section weighs about 1.7 tons. You will need a crane or heavy-duty forklift with a rated capacity of at least 2.5–3 tons and specialized rail tongs or magnetic lifters to handle the KP140 Steel Rails safely.
- Does the weight of the fasteners need to be added to the runway dead load?
Yes. While the RAIL KP 140 provides the majority of the weight, the clips, bolts, and sole plates add roughly an additional 5–10 kg per meter of track. Engineers should account for the total assembly weight when designing the runway beam.
- Does GNEE RAIL provide the weight of each individual rail?
We provide the total shipment weight and the theoretical weight per section in our documentation. For large-scale projects, we can provide specific weight data for each batch of KP Series crane rails to satisfy internal quality and engineering audits.
Get a Quote in 24 Hours
When your project demands the highest levels of stability and load-bearing performance, the KP140 Crane Rail is the premier choice. GNEE RAIL provides the high-quality manufacturing and technical support needed to integrate these massive steel profiles into your infrastructure safely and efficiently.
Contact Us to receive a technical consultation and a customized quote based on your specific KP140 Rail requirements. Our team is ready to assist you with everything from weight calculations to global logistics, ensuring your project is supported by the world-class quality of GNEE RAIL.
