GOST KP120 rail is a heavy-duty crane-specific track compliant with Russian GOST standards, serving as a core product within the KP series rail lineup. Its precise cross-sectional design, premium material selection, and rigorous manufacturing processes ensure stability and durability under heavy-load, high-frequency usage conditions.
The KP120 crane rail works seamlessly with a wide range of crane types—including overhead cranes, gantry cranes, and other heavy-duty lifting equipment. It delivers a stable, dependable track for moving ultra-heavy loads, streamlining efficient material handling processes in industrial settings.
KP120 Rail Specifications
Bottom Width: 170mm
Web Thickness: 44mm
Head Width: 120mm
Rail Height: 170mm
Material:U71Mn
Length: 5m–12m(customization)
Weight: 118.1kg/m
Standard: GOST 4121-1996
If you have special requirements for length or higher strength materials, please contact us for special custom production.
KP120 rail dimension drawing
KP120 rail length are furnished from 6-12meter. Other lengths are available upon request from GloryCrane. Steel Grade are produced to various qualities and specifications as required by our clients.
Descriptions of KP120 Crane Rail
KP120 crane rails are heavy-duty crane rails specified in the Russian GOST standard, commonly used for large port cranes, gantry cranes, steel mill overhead cranes, and various industrial lifting systems. As a specialized supplier of GOST KP120 rails, GloryCrane provides heavy-duty crane rails featuring high strength, consistent material composition, and strict tolerance control.
If you are seeking KP120 rails in stock or supply channels, GloryCrane offers a complete solution including rail bodies, clamping plates, bolts, pressure plates, rail pads, and installation accessories.
Important: KP120 rail vs. KR120 – Same Product, Different Naming
In global trade, “KP120 rail” and “QU120 rail” are common misspellings of the official GOST model КР120 (KR120). We supply 100% compliant GOST 4121-96 rails under all three names:
✅ Technical Name: KR120 (per GOST documentation)
✅ Market Names: KP120 rail, QU120 rail (accepted in commercial contracts)
NO risk of mismatch – Every rail is laser-marked with GOST certification and batch number.
Key Advantages:
Standard Compliance: Strictly adheres to Russian GOST standards, with dimensional accuracy and performance metrics fully meeting heavy-duty crane rail requirements, compatible with Russian standard crane rail installation specifications.
Premium Material: Constructed from U71Mn low-alloy high-strength steel, quenched and tempered for exceptional wear resistance, impact resistance, and fatigue resistance, extending service life. High-strength steel grades suitable for heavy crane wheel pressure
Structure Optimization:Widened rail head design increases contact area for enhanced load-bearing capacity. Uniform web thickness delivers superior bending resistance, making it suitable for heavy-duty industrial applications. Compatible with global crane rail accessories
Flexible Customization: Supports non-standard lengths and special processing (cutting, drilling, surface treatment) to meet diverse project requirements.
15+ Years Export Experience: With 15+ years of export experience, GloryCrane offers full export documentation, third-party inspection (SGS/BV), and reliable packaging for overseas shipment.
One-to-one project support: We offer one-on-one project support, including rail selection guidance, drawing confirmation, and accessory matching. Technical team with deep industry expertise ensures smooth implementation for international projects
As a leading crane rail supplier, GloryCrane offers meticulously engineered gantry crane rail and overhead crane rail solutions. We specialize in providing customizable gauge configurations ranging from 600mm to 1520mm, along with tailored cross – sectional parameters to meet diverse project requirements.
GloryCrane Service Customized options include:
GOST-KP series crane rail for non – standard hole arrangement requirements
End Machining: Chamfering of rail ends to prevent sharp edges from damaging wheels or fittings. End milling to ensure flat and smooth joints, reducing gaps between connected rails.
Bending/ Circle Steel Rail: Cold or hot bending according to design requirements, ideal for curved tracks or turning sections. Strict control of internal stress and top surface flatness during bending.
Trolley Rail: KP-series crane rails also can be used in port crane trolley rail systems. GLORYCRANE can processing the short rails according to customers requirements, we also can providetrolley rail accessories, such as: fix blocks and end stopper.
Rail Bevel Cutting: Bevel cutting of crane rails is available, with angles including but not limited to 45°, to meet special installation layouts or connection requirements.
Customization: Special-shaped processing (welded joints) can be performed on the ends of the steel rails according to project requirements or customer needs.
Leveraging over 10 years of industrial expertise, GloryCrane specializes in precision-engineered crane rail systems tailored to complex operational requirements. As a certified manufacturer adhering to DIN/EN/ISO standards, we integrate advanced metallurgical technologies with rigorous quality control protocols to deliver rails with guaranteed dimensional accuracy and load-bearing performance.
KP120 Rail Material Strength
| U71Mn | Mechanical Property | Chemical Composition(%) | |||||||||
| Yield strength | Tensile strength | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HBW | ≤ | ≤ | ||||
| — | —- | ≥880 | — | 9% | 260 | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | 0.030 | 0.030 | |
KP120 rails, as special rails for heavy lifting equipment, are designed with high strength, wear resistance, impact resistance and fatigue resistance in order to meet the long-term and stable use under heavy loads, high frequency operation and severe working conditions.
Application of KP120 Rail
As a specialized rail solution for crane rail systems, the KP120 crane rail excels at supporting ultra-heavy loads in industrial environments. Its tailored profile ensures consistent track stability for cranes and other heavy-duty lifting machinery operating in steel mills, port facilities, and container yards.
Port Terminals & Container Handling Systems
KP120 is commonly installed on STS cranes (ship-to-shore), RMG/RMH gantry cranes, and container stacking cranes.
Its wide base and strong web thickness ensure minimal deformation under repetitive wheel pressure.
Why buyers choose KP120 here:
Supports high wheel loads during container lifting
Withstands marine environments and long working hours
Matches most port crane manufacturers’ rail requirements
Important distinction: Please note that in such scenarios, the tracks used for moving lifting equipment inside factory buildings or on cargo yards are industrial crane beam rails. Models such as QU120 should be selected, not KP120.
Shipyards & Large Fabrication Workshops
Shipbuilding lines rely on KP120 to support ultra-heavy gantry cranes used for hull assembly and block lifting.
Advantages:
Suitable for large-span gantry cranes
High bending stiffness reduces runway deflection
Long-term durability even in outdoor coastal conditions
Mining, Power Plants & Heavy-Material Transfer Lines
In mining and energy industries, KP120 crane rails are used in rail-guided transfer systems that carry ore, coal, or heavy machinery.
Why KP120 is preferred:
Designed for high-static and dynamic loads
Compatible with welded-type and bolted-type crane rail clamps
Strong profile for vibration-heavy working environments
General Industrial Crane Systems
KP120 fits medium-to-large overhead cranes used in industrial manufacturing plants, logistics hubs, machinery workshops, and warehouse lifting systems.
Buyer-focused highlights:
Easy to integrate with common crane accessories (clips, pads, fishplates)
Available in custom lengths (6m / 9m / 12m / OEM sizes)
Stable supply for new construction and renovation projects
Complete Accessories for KP-series Rail System – Enhance Performance & Safety
Fish Plates: Made of Q235B steel with hot-dip galvanizing, they connect KP-series rails with ±0.3mm precision for gap-free bolted joints and stable load transfer.
Rail Clamps: Designed for kp-series rail base, GloryCrane supply WJK-welded rail clips, forged from 45# steel with dual anti-corrosive coating. Available in welded/bolted types, their elastic pads reduce vibrations between rails and foundations.
High-Strength Bolts: 8.8/10.9-grade sets meet ISO/GB standards, with Dacromet coating for 500+ hours of salt spray resistance—3x more durable than ordinary bolts.
Rubber Pads: Laid under KP-series rails, these natural/nitrile rubber pads (60-70HA hardness) come in 5/8/10mm thicknesses to buffer pressure and reduce noise.
Rail Pressure Plates: Crafted from QT400-18 ductile iron (galvanized, 400MPa+ strength), their curved design fits KP model rail bases perfectly, minimizing stress for heavy-duty applications.
Alumothermic Welding kits for Rails: GloryCrane offers a full set of alumothermic welding equipment for crane rail track installation. Our solution uses an aluminum – iron oxide exothermic reaction to form high – strength, fatigue – resistant joints. With no need for complex power setups, it enables rapid on – site installation, making it a preferred choice for heavy – duty crane rails.
Global Shipping & Logistics: Your Partner in Seamless Delivery
At GloryCrane, we ensure fast and reliable delivery of crane rails to ports worldwide. With strategic partnerships and flexible logistics solutions, your order arrives on time, every time.
✅ Global Port Coverage
From Shanghai to Rotterdam, Hamburg to Singapore, we ship to major industrial hubs via sea freight, air freight, or multimodal transport.
✅ Secure Packaging
Rails are bundled with anti-rust coatings and wrapped in waterproof materials.
Custom crating available for fragile components (e.g., clips, bolts).
About GloryCrane
GloryCrane has been focusing on the foreign trade of crane rails for more than 10 years. Relying on high-quality supply chains such as Anshan Iron and Steel Group and Baotou Steel Group, it provides customized production of crane rails (adjustable length and aperture) and full-process services of direct shipment from global ports.
