supply of surface hardness testing instrument for rail grinding machine. it measures hardnessbefore and after grinding having measuring accuracy (+/-) 4 hld/hldl (0.5% @800 hld/hldl),operating atmosp heric temperature should be -15 degree celsius to +50 degree celsius) and humidity max. 90, resolution 1 hl (leeb), 1 hv (vickers) , 1 hb (brinell), 0.1 hrc (rockwell), 0.1 hrb, 0.1 hs (hardness conversion scales ), hardness results in hlx are often converted to the traditional hardness scales hrc,

North Central Railway has invited bids for the supply of surface hardness testing instrument for rail grinding machine. it measures hardnessbefore and after grinding having measuring accuracy (+/-) 4 hld/hldl (0.5% @800 hld/hldl),operating atmosp heric temperature should be -15 degree celsius to +50 degree celsius) and humidity max. 90, resolution 1 hl (leeb), 1 hv (vickers) , 1 hb (brinell), 0.1 hrc (rockwell), 0.1 hrb, 0.1 hs (hardness conversion scales ), hardness results in hlx are often converted to the traditional hardness scales hrc, hb and hv, with powe r input through usb. testing range 150-950 hld 250-970 hldl (native scale). [ warranty period: 30 mon ths 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.