supply of surface roughness measuring instrument for rail grinding machine.it is a pocket- sized porta ble instrument measures the roughness of the rail .it should have lcd display that shows surface roughnes s parameter ra (arithmetical mean roughness value), rz (mean roughness depth), rms (maximum rough ness depth) (rq) and rt (total height of the roughness profile), operates on various surfaces, not only flat but also outer cylinder, outer cone, grooves, and recesses greater than 80 x 30mm.as

North Central Railway has invited bids for the supply of surface roughness measuring instrument for rail grinding machine.it is a pocket- sized porta ble instrument measures the roughness of the rail .it should have lcd display that shows surface roughnes s parameter ra (arithmetical mean roughness value), rz (mean roughness depth), rms (maximum rough ness depth) (rq) and rt (total height of the roughness profile), operates on various surfaces, not only flat but also outer cylinder, outer cone, grooves, and recesses greater than 80 x 30mm.asme b46.1-2019,iso 4 288:1996 or is 15263:2002 [ warranty period: 30 months after the date of delivery ] ]., with an EMD of ₹0 Cr. Please refer to the tender document for project value details. Interested bidders can submit applications until 5 October 2026, with the technical opening scheduled for 5 October 2026.