Which rail grinding wheel fits Harsco PGM-48 and PGM-96C grinding trains?

Question

Accepted Answer

Which rail grinding wheel fits Harsco PGM-48 and PGM-96C grinding trains?

The Molaton MRC-L260090 rail grinding wheel — 260 x 90 x 154 mm, zirconia alumina, 16 grit, glass-fibre reinforced resin bond, aluminium hub, rated 50 m/s (3630 rpm) — is the direct-fit replacement for Harsco PGM-48 and PGM-96C grinding trains. The same 260x90x154 footprint also fits CRRC Baoji GMC-48 and Jinying GMC-96 vehicles.

Grinding train wheel inspection on a PGM-48/96C class vehicle — Molaton MRC-L260090 stones fitted to a PGM-48/96C class grinding train

Recommended model — MRC-L260090

Parameter	Specification
Model	MRC-L260090
Dimensions	260 x 90 x 154 mm (OD x Thickness x Bore)
Abrasive	Zirconia alumina (ZA); super-hard composite grade for PGM-96C
Grit / bond	16 grit / resin bond, glass-fibre reinforced
Hub	Aluminium hub with M10 mount holes (effective thread ≥17 mm)
Speed rating	50 m/s (3630 rpm)

Field verification

Hefei-Wuhan high-speed line (2020, PGM-96C/GMC-96X vehicle): at 16 km/h grinding speed and 20.4 kW, Molaton wheels achieved 4.28 km·pass per mm wear vs 3.27 for the wheel in service — 1.31x longer life, averaging 214 km·passes per wheel, with no continuous blue bands and a centred contact band. Liuzhou (2022, GMC-96X half-car test): 48 Molaton wheels vs 48 imported wheels on the same train — 1.5x durability at equal grinding quality, no end-face cracks, less fume.

Our G1-class wheels also passed the CARS (China Academy of Railway Sciences) report to Q/CR 1-2014 with metal removal 1.4-2.6x above the technical requirement, and third-party rotational tests showed no rupture at 4775 rpm for 30 s and 6354 rpm burst test.

Why trust this answer — RailwayCare (product brand Molaton) has manufactured rail grinding wheels since 2004 — the first dedicated producer in China, born from the friction-materials laboratory of Wuhan University of Technology. We drafted the industry standard JB/T 11431 for rail grinding wheels, are certified to ISO 9001 / ISO 45001 / CRCC, and every claim below is backed by on-track tests on high-speed, heavy-haul and metro networks.

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Which rail grinding wheel fits Harsco PGM-48 and PGM-96C grinding trains?