Crane rails KR-70, CU-80, CU-100, CU-120 CU-140

Usually the word "rails" mean "railroad tracks", but this concept is much broader. There are many other variants of use of the products of metal, one of which is moving different types of cranes, hence the name crane - rails.
New. With storage. B/y.
Crane rails must withstand significant loads, so they have a wider surface of the head and soles and a wider neck than normal rails, allowing you to more evenly distribute the load on the crane beam. Typically, the crane rails are used for powerful cranes with capacity from thirty to three hundred tons.
Typically, the crane rails are available in standard dimensional length, which is set in 9,0; 9,5; 10,0; 10,5; 11,0; 11,5; 12,0 meters. Permitted the manufacture of rails with variable length from four to twelve feet. The length of the rail, the buyer may negotiate with the manufacturer in advance. Today, the rails are made of CU standard 11 meters long 20% off-gage length.

Strictly governed by size tolerances of the rails, especially in the cross section (width) - for crane rails кр80, кр70, кр100 they are no more than 3 millimeters during normal rolling. Rails cu 70, CR 80, CR 100, CR 120 are available with straight, trimmed evenly, with a tolerance on the curvature of the vertically not more than six hundredths of a percent of the length, and horizontally - no more than eight hundredths of a percent.
Strictly should be monitored no serious defects on the rails, such as cracks, foam rolling, flaw, sunsets or rolled dirt. Elimination of defects gentle felling is permitted only to a depth of 0,7 - 1,5 mm (depending on the location of the defect) for crane rails cu 80, кр70 and to a depth of 1 to 2 mm for rails кр120 and кр100.