What are the differences in the application of different specifications's crane rails

The application of different specifications of crane rails shows significant differences, primarily based on crane tonnage, wheel rail pressure, and track span. The GB crane rail series, ranging from light to super-heavy duty, includes models such as QU70, QU80, QU100, and QU120, each suitable for different scenarios.

 

 

Rail Type			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

 

Light specifications like the QU70 have lighter rail weight, a rail height of approximately 150-160 millimeters, and a relatively narrow rail head width. They are suitable for light-duty cranes or internal light-load transport lines within industrial plants, typically used in small logistics centers, light-duty cranes, or warehouse handling equipment. These rails can ensure track stability under conditions of low wheel rail pressure and moderate operating frequency, while also saving steel costs.

 

 

 

Medium specifications like the QU80 have a rail height between 165-180 millimeters, with larger base and head dimensions, enabling them to withstand the frequent operation of medium-duty cranes and medium loads. They are widely used for medium-duty cranes in ports, terminal storage yards, and medium-duty crane tracks in mines. This specification balances load-bearing capacity and economy, suitable for lines with higher wheel loads but not particularly large track spans.

 

 

 

Heavy specifications like the QU100 have a rail height of about 200 millimeters, significantly increased base and head dimensions, and a rail weight exceeding 88 kilograms per meter. They can withstand the wheel load impact of large cranes and are suitable for large ports, heavy-duty industrial cranes, or mine hoisting and transport systems. Their wide base and thick web enhance bending stiffness and fatigue resistance, supporting high-frequency, heavy-load operations.

 

 

 

Super-heavy specifications like the QU120 have a rail weight of approximately 105-110 kg/m and a rail height exceeding 220 millimeters. They are designed for extra-large cranes, ultra-heavy-load transport, and track applications under extreme conditions. QU120 rails can withstand extremely high wheel load pressure and are commonly used for the highest tonnage container cranes in ports, large mining equipment, and heavy-duty industrial tracks, ensuring operational safety and long-term track stability.

 

 

 

GNEE RAIL can supply the full range of crane rails including QU70, QU80, QU100, and QU120, and provides customized processing services such as cutting, drilling, end grinding, and surface treatment according to customer requirements, meeting the needs of crane track construction for different tonnages and working conditions. To learn about specification selection or obtain a quotation, please contact us for professional support and solutions.