Baxter hot dip galvanized steel grating staircase, steel grating stepping, T325 / 30/100

Baxter hot dip galvanized steel grating staircase, steel grating stepping, T325 / 30/100 I. Introduction stair treads: stair treads is a staircase for steel grating platform, according to the installation, the general The welded and bolted fixed two types, directly welded to the keel, without stepping board plus side, relatively economical and durable but easy to disassemble, treads on both sides of fixed bolt needs thickened side, in the drilling side. Treads installation is directly bolted, reusable recycling. Second, stepping board: 1, treads T325 / 30/100 of: for no greater than a width greater than 500mm 900mm2, treads T255 / 30/100 of: for no greater than a width greater than 800mm 1500mm Third, treads common types: 1, T1 stepping: made of flat steel and bars with certain distances, usually steel grating welded and fixed. 2, T2 stepping: made of flat steel and bars with certain distances, stepping on both sides with fixed side bolts. 3, T3 stepping: flat steel and bars with certain distances with different stepping skid front fender. 4, T4 stepping: flat steel and bars with certain distances, with different front fender and side skid bolted stepping. Fourth, treads quality requirements: 1, treads tolerances: a total length of treads difference in the range of 0 - (- 3) mm, treads width tolerance ranges (-3mm) -3mm. 2, treads welding requirements: the front fender and edging with each bearing bars by a welding seam is not less than 3mm of fillet welds.