What are the standard dimensions of Crane Rail KR140?
May 13, 2026
What are the standard dimensions of Crane Rail KR140?
The KR140 Crane Rail, also widely known as the KP140 under the Russian GOST 4121-96 standard, is one of the largest and heaviest crane rail profiles used in global industrial infrastructure. Its dimensions are specifically engineered to provide a massive footprint for stability and a thick web to handle the intense vertical pressure from heavy-duty gantry and overhead cranes.
The standard dimensions for this profile according to GOST 4121 are as follows:
- Rail Height: 170 mm
- Head Width: 140 mm (The "140" in the designation refers to this contact surface)
- Base Width: 170 mm
- Web Thickness: 38 mm
- Calculated Weight: Approximately 141.7 kg/m
|
Size |
Rail height(mm) |
Bottom Width(mm) |
Head Width(mm) |
Web Thickness(mm) |
Weight(kg/m) |
|
KP140 |
170 |
170 |
140 |
58 |
141.7 |
GNEE RAIL maintains a full-scale production line dedicated to KP Series crane rails, ensuring every batch meets the precise mechanical tolerances required for high-capacity crane systems. By managing the entire rolling process from billet selection to ultrasonic testing, we ensure consistent straightness and internal purity across all KP140 Rail lengths.
Application of KP140 Rail in Global Industry
The Application of KP140 Rail is most prominent in environments where standard rails would fail under the weight of massive machinery. In port terminals, GOST Standard KP140 Crane Rail supports the giant gantry cranes that move shipping containers daily. The stability of the KP140 Steel Rails ensures that these cranes can operate at peak efficiency without the risk of track misalignment or structural fatigue.
Furthermore, KP Series crane rails are indispensable in heavy manufacturing sectors, such as steel mills and shipyards. The Crane Rail KR140 provides a dependable path for bridge cranes carrying ladles of molten steel or massive hull sections. Because it conforms to Russian GOST standard requirements, it is often specified in large-scale infrastructure projects across regions that utilize GOST-compliant engineering designs for their logistics hubs.
Optimized Installation for Crane Rail KR140
Proper installation of the Crane Rail KR140 is just as important as the quality of the steel itself. Utilizing the correct fastening systems, such as weldable rail clips and rubber pads, ensures that the RAIL KP 140 is securely anchored to the runway beam. This prevents the rail from "walking" or shifting, which is a common cause of crane derailment and equipment damage in poorly maintained facilities.
When planning the layout, considering the KP140 rail length and the number of joints is crucial. Minimizing the number of joints through precise cutting and high-quality welding processes will result in a smoother travel surface for the crane. This reduces vibration, protects the crane's mechanical components, and ensures that the GOST KP140 crane rail provides a stable and quiet operational environment for the facility.
FAQ
1. What is the difference between KP140 and KR140 designations?
Both terms refer to the same profile under the Russian GOST 4121-96 standard. "KP" is the transliteration of the Russian "КП", while "KR" is often used in international markets. Both signify a crane rail with a 140mm head width.
2. Is the KP140 Rail compatible with non-GOST crane wheels?
While designed for GOST standards, the KP140 Rail Dimensions are often compatible with various international heavy-duty crane wheels. It is essential to verify the wheel tread width and flange profile against the 140mm head width of the rail.
3. What is the standard hardness of the U71Mn KP140 steel rails?
The U71Mn GOST KP140 crane rail typically provides a surface hardness between 280 and 320 HB (Brinell scale). This ensures a high level of wear resistance without making the rail too brittle for impact loads.
4. Can you provide custom KP140 rail lengths for specific projects?
Yes, while the standard KP140 rail length is 12 meters, we can provide custom cutting and machining services to meet the specific requirements of your runway design, including miter cuts for curved sections.
5. How does the weight of KP140 affect its shipping and logistics?
With a theoretical weight of 141.7 kg/m, KP140 Steel Rails are extremely heavy. They require specialized handling equipment and are typically shipped in 20ft or 40ft containers with strict weight distribution protocols to ensure maritime safety.
Get a Quote in 24 Hours
Selecting the correct rail profile requires a deep understanding of load dynamics and material science. At GNEE RAIL, we provide the technical expertise and high-performance KP140 Crane Rail products needed to support your most demanding industrial projects. Whether you are building a new port terminal or upgrading an existing factory runway, we offer the precision-engineered solutions your infrastructure requires.
Contact Us to discuss your project specifications and receive a comprehensive quote. Our team is dedicated to providing the technical data, material certifications, and logistics support necessary to ensure your project's success. Reach out to GNEE RAIL today to secure the high-quality GOST Standard Rail KP140 your operations depend on.
