What you should know when use QU100 crane rail
Oct 14, 2025
QU100 crane rail is a medium-sized crane rail specially designed for crane track systems, with a focus on load-bearing capacity and durability. In practical use, to ensure the long-term stable operation of the rail system, several key points must be observed.
Firstly, the leveling and track gauge accuracy must be ensured during installation. Although the QU100 rail section is optimized, if the sleepers are not precisely positioned or the track gauge deviates excessively, wheel loads will be unevenly distributed, accelerating wear on the rail head and web. When using concrete sleepers, strict compliance with construction specifications is required for embedding and securing, preventing rail deformation caused by loosening or misalignment.
| Classification | SIZE(mm) | theoretical weight | |||||||||
| height | bottom width | head width | waist depth | ||||||||
| Crane rail | 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 | ||||||
Secondly, attention should be paid to wheel impact loads and operating conditions. Although QU100 rails can withstand frequent start-stop cycles and medium loads, overloading or sudden impacts during operation should be avoided. Long-term overloading may cause micro-cracks or accelerated rail head wear, so the rail system should be configured according to the actual load of the crane.
Thirdly, regular inspection and maintenance are essential to ensure rail longevity. Inspect the rail surface for cracks and wear, check whether fasteners at rail joints are loose, and replace any damaged components promptly. When QU100 rails are used with rail fastening systems, it is also necessary to ensure that bolts and clip clamping forces meet requirements to maintain stable rail fixation.
Additionally, during installation and maintenance, rail corrosion and wear protection should be considered. In coastal or high-humidity environments, rust-preventive coatings or surface treatments can be applied to slow corrosion and ensure long-term safe operation.
GNEE RAIL provides QU100 crane rails that comply with GB standards, and can offer different specifications and load grades as well as complete technical support. This helps customers optimize track layout, improve crane operation smoothness, and ensures that the rail system remains safe and reliable under high-load conditions.
