Question 1

Choosing a railroad track grinding machine comes down to six factors: work scope, head count, power source, precision, wheel compatibility and support. Match a train or portable grinder to the job.

Accepted Answer

How do I choose a railroad track grinding machine?Choose a railroad track grinding machine on six factors in this order: (1) where the work is — mainline kilometres or turnouts and welds; (2) how many grinding heads the task needs; (3) power source — lithium for tunnels and enclosed areas, diesel for long-haul output; (4) the precision the acceptance standard demands; (5) whether grinding wheels are matched to the machine's bore, rpm and duty; (6) the supplier's support, spare-wheel supply and training. Get those six right and the machine choice follows; skip any one and you end up paying twice — once for the machine, once for re-grinding.A self-propelled grinding vehicle handles kilometre-scale work; portable machines are chosen for turnouts, welds and short possessionsThe six selection factors, in orderFactorWhat to decidePractical rule1. Work scope and siteMainline, station track, turnout, weld or isolated defectKilometres of line → grinding vehicle; turnouts, welds and curve transitions → portable machine2. Head count and speedSingle head or a 16/20-head arrayArrays run 3-16 km/h for preventive and profile work; single-head machines work 1-2 km/h on localised spots3. Power sourceLithium battery, electric, hydraulic or dieselLithium for tunnels, metro night windows and low noise/emission constraints; diesel or electric for continuous high-output campaigns4. Precision requiredAcceptance tolerance for profile and finishVehicle class ≤±0.2 mm and Ra 5. Wheel compatibilityWheel diameter, bore, thickness, rpm and bondEvery head must be fed the right wheel — 260x90x154 mm ZA F16 at 3630 rpm for PGM-48/96C-class cars, 350x60/25/50/35x127 mm at 2730 rpm for GMC16A, 150 mm class handheld wheels at 6000-7500 rpm6. Supplier supportTraining, commissioning, spare wheels, custom sizesA machine is only as productive as its wheel supply and service responseMatch the machine family to the jobIf your work is…ChooseTypical modelsLong mainline sections, corrugation elimination, preventive grindingSelf-propelled grinding train / vehicleGMC16A grinding train (16/20-head, 3-16 km/h)Turnouts, switch rails and stationsLight turnout grinderRCG-L50 lithium intelligent turnout grinder (4.7 kW brushless motor, 72 Ah battery)Rail head, weld and web in one passVertical-axis grinderRCG-V50 multifunctional vertical-axis grinderFrogs and switch rails, high-precision profile recoveryCNC copying grinderRCG-C65 CNC intelligent copying grinderWeld finishing and short night windowsLithium NC grinderRCG-L65 lithium battery NC grinderEvery machine above runs on Molaton rail grinding wheels produced by RailwayCare — the wheels are engineered to the same head geometry and rpm as the machines, so the two are specified as one system. Compare the full range on the rail grinding machines page and the rail grinding wheels page.What the choice costs you in practiceThe Liuzhou GMC-96X campaign (2022) is the clearest illustration: a train ground 18.72 km·passes in a 2-hour night window, with wheel wear of only 20-30 mm against 43.5-59 mm for the imported reference wheel — roughly twice the wheel life from the same machine hours. Yiyang and Shuohuang heavy-haul operators averaged 5.7 and 4.98 km·passes per mm of wheel wear. On a 48-wheel high-speed car a single group grinds 10-15 km continuously. Precision matters just as much as metal removal: grinding is accepted at a profile within ≤0.3 mm of a 1 m straightedge, Ra ≤10 μm and no blueing, which is why the machine and the wheel must be chosen together. Molaton wheels are made in a 2004-founded plant — China's first dedicated rail grinding wheel manufacturer, with roots in the friction-materials laboratory of Wuhan University of Technology — certified to ISO 9001 / ISO 45001 / CRCC and tested by national abrasive institutes (rotational survival at 4775 rpm for 30 s; burst only above 6354 rpm). Machine, wheel and acceptance standard are one decision.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.Related questions you may also askWhat is a rail grinding machine and how does it work?What grit size and abrasive should I use for rail grinding?Which rail grinding wheel fits Harsco PGM-48 and PGM-96C grinding trains?Operator training and commissioning supportTell us your track conditions — we will size the machineSend us your rail type, defect list, possession window and target profile. RailwayCare will confirm the machine class and the matched Molaton wheel set within 24 hours.Get a Machine Recommendation

Question 2

A rail grinding machine presses rotating wheels on the rail head to erase defects: multi-head trains for long lines, portable RCG grinders for turnouts. Molaton wheels are built for both.

Accepted Answer

What is a rail grinding machine and how does it work?A rail grinding machine is a powered unit — from a handheld grinder to a self-propelled multi-head grinding train — that removes a thin, controlled layer from the rail head with rotating abrasive wheels. It works by controlled abrasive cutting: each grinding head spins a resin-bonded wheel (typically zirconia alumina) and presses it against the rail at a set angle and downforce while the machine travels along the track; profile and defect measurements taken before and after guide the number of passes. Done correctly the rail is restored to tolerance with no burning, no blueing and a finish of Ra ≤10 μm.Multi-head rail grinding train — 48 wheels in a group can grind 10-15 km in one continuous runHow a rail grinding machine worksSurvey the track — corrugation wavelength and depth, wear, profile deviation and burns are measured first so the right pattern is chosen.Position the heads — each head carries a wheel matched to the machine (e.g. 260x90x154 mm ZA F16 wheels on PGM-48/96C-class trains, running 3630 rpm at 50 m/s); the operator or CNC system sets angle and downforce.Grind in controlled passes — trains traverse at 3-16 km/h over long sections (a high-speed car with 48 wheels in a group grinds 10-15 km continuously); portables work at 1-2 km/h on localized spots. Each pass removes at most about 0.5 mm of metal.Verify and finish — profile is checked against a 1 m straightedge (≤0.3 mm), finish against Ra ≤10 μm, with no blueing; grinding depth is kept inside the accepted envelope.Two families: grinding trains and portable machinesFamilyExamplesTypical wheelBest forSelf-propelled grinding train / vehicleGMC16A (16/20-head, 3-16 km/h, ≤±0.2 mm), PGM-48/96C class, 12-head light cars260x90x154 mm ZA F16 (PGM class); 180x105x90 mm 6000 rpm (GMC96B); 250x75x150 mm G3 3280 rpm (Loram class)Corrugation elimination, preventive and corrective profile grinding over kilometres of main linePortable / small rail grinderRCG-L50 lithium turnout grinder, RCG-V50 vertical-axis grinder, RCG-C65 CNC copying grinder, RCG-L65 profile grinder; MRC-S handheld grinders150x70xM20-class wheels, 6000-7500 rpmTurnouts, welds, web and rail-head local defects, finishing to ≤±0.1 mm at 1-2 km/hMachines and wheels must be matched as one system. Molaton (RailwayCare's product brand) manufactures the full wheel range — from train wheels at 260x90x154 mm to handheld wheels at 150 mm — engineered to each head's bore, rpm and duty. Explore the rail grinding machines (RCG series and GMC16A train) and the wheels that power them, or see how machines are deployed in the rail grinding solution.Machine + Molaton wheel: measured on trackOn the Liuzhou GMC-96X campaign (2022), the train fitted with Molaton wheels ground 18.72 km·passes in a 2-hour night window, with 20-30 mm wheel wear versus 43.5-59 mm for the imported reference — about twice the life. Yiyang and Shuohuang heavy-haul fleets averaged 5.7 and 4.98 km·passes per mm of wheel wear. Behind the machines stands a 2004-founded plant — China's first dedicated rail grinding wheel maker, drawing on the friction-materials laboratory of Wuhan University of Technology — with wheels certified under ISO 9001 / ISO 45001 / CRCC and quality tested by national abrasive institutes (rotation survival at 4775 rpm for 30 s, burst only above 6354 rpm).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.Related questions you may also askWhat is a railway grinding wheel and how does it work?How to choose the right rail grinding wheel for your equipment?Pair the right Molaton wheel with your grinderTell us your machine model — RCG, MRC, GMC, PGM or Loram class — and your rail condition. We will confirm the exact wheel size, bore, grit and bond within 24 hours.Get a Wheel Recommendation

Question 3

For rail grinding, choose zirconia alumina (ZA) 16-grit wheels for fast removal; use finer grit only for finishing. Molaton ZA wheels showed ~2x the wear life of imported wheels at Liuzhou.

Accepted Answer

What grit size and abrasive should I use for rail grinding?For rail grinding you need zirconia alumina (ZA) abrasive at 16 grit (coarse) as the working standard — this is the combination Molaton fits to PGM-48/96C-class grinding trains (260x90x154 mm, ZA F16, 50 m/s) because it removes corrugation and profile defects fastest while holding the finish. Step down to a finer grit only for finish-critical passes on portables and weld dressing. Match the wheel size, bore and rpm rating to your machine, then verify with a small field trial before full roll-out.12-head rail grinding vehicle at work — coarse ZA wheels remove the defect, and acceptance still meets Ra ≤10 μmGrit vs abrasive: what each controlsChoiceWhat it controlsRail grinding recommendationAbrasive typeCut rate, wheel life, cost per km·passZirconia alumina (ZA) — grain strength 308.0 MPa, self-sharpening edge retentionGrit sizeStock-removal speed vs surface finish16 grit (coarse) for trains; finer grit only for final finish passesBondWheel life, fracture resistance, holding grit under loadResin bond with glass-fibre reinforcement (Y5B-class bonds in train wheels)Speed ratingSafe operating window on the headMinimum 50 m/s per GB 2494; tested to 4775 rpm for 30 s without ruptureBalanceChatter, burning, uneven wearBatch-balanced to ≤30 g per GB/T 2492Why zirconia alumina? Measured grain strength puts ZA at 308.0 MPa, versus 124.0 MPa for calcined brown fused alumina and 103.2 MPa for white fused alumina; in the Shenhua project the grinding ratio ran 41.0 against 22.4 and 11.9 for the other two. Molaton builds wheels from Saint-Gobain Abrasives grain and SI Group resin — the same input discipline every batch, documented for ISO 9001 traceability.Match grit and abrasive to the machineMachine classTypical Molaton wheelGrit guidancePGM-48 / PGM-96C-class grinding trains260x90x154 mm, ZA F16, 50 m/s, 3630 rpm16 grit — corrugation removal and continuous main-line grindingGMC96B-class vehicles180x105x90 mm, 6000 rpm16-grit family for stock removal; confirm with our engineers for light defect mixesLoram-class grinders250x75x150 mm (G3), 3280 rpmCoarse ZA for profiling; validated on Loram-type headsHandheld / portable (MRC-S 150/125 class)150x70xM20 and related bores, 6000-7500 rpmCoarse for weld reshaping, finer grit for final surface finishFinish rules stay the same across machines: after grinding the rail must meet Ra ≤10 μm, profile tolerance ≤0.3 mm over a 1 m straightedge, grinding depth ≤0.5 mm per pass, and show no blueing. If your acceptance is tighter, keep 16 grit for removal and add one finer finishing pass — don't start fine, or you will burn time and wheels. See the Molaton rail grinding wheel range and the rail grinding solution for typical pass sequences.Proven on track — why 16-grit ZA is the field standardOn the Liuzhou GMC-96X campaign (2022), Molaton 16-grit ZA wheels ground 18.72 km·passes in a 2-hour night window with 20-30 mm wheel wear versus 43.5-59 mm for the imported reference — about twice the life at equal finish. The Shenhua project accepted a 600-piece batch through a full wear cycle. Laboratory rotation tests (2024, national abrasive testing institute) saw the 260x90x153 mm wheel survive 4775 rpm for 30 s with no rupture, burst only above 6354 rpm, and carry a measured unbalance of 21 g — inside the ≤30 g requirement. Yiyang line and Shuohuang heavy-haul fleets averaged 5.7 and 4.98 km·passes per mm of wheel wear respectively.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.Related questions you may also askHow to choose the right rail grinding wheel for your equipment?What causes rail grinding wheel premature wear and how to prevent it?Not sure 16 grit fits your rail and your machine?Send your grinder model, rail condition, defect photos and current part number. Our engineers will confirm the right Molaton grit-abrasive combination within 24 hours.Get a Wheel Recommendation

Question 4

A rail grinding wheel is an engineered, reinforced, balanced disc for powered rail grinders (50 m/s); a grinding stone is a manual block for light touch-up. Molaton has built rail wheels since 2004.

Accepted Answer

What is the difference between a rail grinding wheel and a grinding stone?A rail grinding wheel is an engineered, precision-made disc — abrasive grain bonded with resin and reinforced with glass fibre, drilled with a true bore, balanced to ≤30 g and rated for 50 m/s — built to mount on a powered rail grinder. A grinding stone in the strict sense is a block-shaped abrasive used by hand or on low-speed tooling for light touch-up. If your job runs on a grinding train or a portable rail grinder — corrugation removal, profile restoration, weld finishing — you need a rail grinding wheel, not a stone.Molaton rail grinding wheels — engineered, balanced and reinforced discs, not loose grinding stonesRail grinding wheel vs grinding stone at a glanceFeatureRail grinding wheelGrinding stone (manual)Form & mountingDisc with a precision bore, clamped on a powered grinding headBlock or stick held by hand or simple toolingBond & reinforcementResin bond with glass-fibre reinforcement for impact loadsTypically vitrified or silicate, unreinforcedSpeed ratingMinimum 50 m/s working speed per GB 2494; tested 4775 rpm for 30 s without ruptureHand-speed only, no ratingBalanceBatch-balanced to ≤30 g per GB/T 2492 to prevent chatter and burningNot applicableJobCorrugation removal, profile grinding and weld finishing to Ra ≤10 μm on live trackLight deburring, dressing and hand finishingGoverned byRail grinding wheel standards JB/T 11431, GB/T 2492General abrasive products onlyWhich one does your rail job need?Match the tool to the task in two steps. (1) Continuous or machine grinding — corrugation bands, worn rail head or profile defects over long sections are done with wheels mounted on grinding trains or portables: pick the exact size and bore for the head (e.g. 260x90x154 mm for PGM-48/96C-class trains, 150x70xM20 for Molaton MRC-S handheld grinders) with a minimum 50 m/s rating and batch balance. (2) Manual spot touch-up — a small hand stone may be acceptable for a few burrs at a weld, but it cannot hold profile tolerance.Beware that many suppliers loosely call any abrasive a "rail grinding stone". Check the bore, speed rating, balance and the standard it is made to before buying. Molaton, the product brand of RailwayCare, has manufactured rail grinding wheels since 2004 — China's first dedicated producer, born from the friction-materials laboratory of Wuhan University of Technology. We drafted standard JB/T 11431 for rail grinding wheels and hold ISO 9001 / ISO 45001 / CRCC certification, so what we call a wheel is a wheel by standard. Browse the full railway grinding wheel range and the rail grinding machines they fit.Field evidence — the engineered wheel wins on trackThe difference shows in measured results. On the Liuzhou GMC-96X campaign (2022), Molaton wheels ground 18.72 km·passes in a 2-hour night window with 20-30 mm of wheel wear versus 43.5-59 mm for the imported reference wheel — about twice the durability. On the Yiyang line and Shuohuang heavy-haul railway, the fleet averaged 5.7 and 4.98 km·passes per mm of wear, holding surface finish to Ra ≤10 μm with no burning. A hand stone on the same defects would take far more passes and still miss the profile tolerance of ≤0.3 mm over a 1 m straightedge.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.Related questions you may also askWhat is a railway grinding wheel and how does it work?How to choose the right rail grinding wheel for your equipment?Stop guessing between "stone" and "wheel" — get the engineered answerSend us your grinder model, the defect you are fixing, and a photo of the abrasive you use today. Our engineers will confirm the exact Molaton wheel — size, bore, grit and bond — within 24 hours.Get a Wheel Recommendation

Question 5

MRC-L260090 (260x90x154 mm, ZA 16 grit, 50 m/s) is the direct-fit wheel for Harsco PGM-48/PGM-96C trains and fits CRRC GMC-48/Jinying GMC-96. 1.31x longer life on Hefei-Wuhan HSR.

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.Molaton MRC-L260090 stones fitted to a PGM-48/96C class grinding trainRecommended model — MRC-L260090ParameterSpecificationModelMRC-L260090Dimensions260 x 90 x 154 mm (OD x Thickness x Bore)AbrasiveZirconia alumina (ZA); super-hard composite grade for PGM-96CGrit / bond16 grit / resin bond, glass-fibre reinforcedHubAluminium hub with M10 mount holes (effective thread ≥17 mm)Speed rating50 m/s (3630 rpm)Field verificationHefei-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.Related questions you may also askWhat is a railway grinding wheel and how does it work?Rail grinding cost per kilometre — what operators actually payRail grinding wheels for African railways — heavy haul and mining corridorsConfirm your PGM-48/96C replacementSend your machine model and current wheel part number. We will confirm the exact Molaton MRC-L260090 specification and arrange samples for a head-to-head trial.Confirm My Wheel Fit

Question 6

Molaton G3 wheel (250x75x150 mm, ZA, 16 grit, 50 m/s) directly fits Loram grinders. DM01 2026 trial: no burning, Ra mostly 2-4 um. 600+ wheels passed on Shuohuang heavy-haul.

Accepted Answer

Which rail grinding wheel fits Loram rail grinders?The Molaton G3-class wheel, 250x75x150 mm (zirconia alumina, 16 grit, glass-fibre reinforced, 50 m/s, 3280 rpm recommended), is our direct replacement for Loram rail grinders. It is produced on the same aluminium-hub platform as our Harsco/Speno wheels and is validated on a real Loram DM01 machine.Production rail grinding vehicles are fitted with Molaton G3-class stones on the Loram platformRecommended wheel — Loram platform (G3 class)ParameterSpecificationModel referenceMRC-L250075 (G3-FHCY class)Dimensions250 x 75 x 150 mm (OD x Thickness x Bore)AbrasiveZirconia alumina (ZA) + super-hard composite layerGrit16BondResin, glass-fibre reinforced, aluminium hubSpeed rating50 m/s (recommended 3280 rpm)Validation on a Loram machine (DM01, 2026)In a head-to-head trial on a Loram DM01 (80% power, 7 km/h), Molaton stones were fitted to heads 1/3/5/7 against the incumbent stone on heads 2/4/6/8. Results: no burning on the ground rail, roughness 1.05-9.0 μm (mostly 2-4 μm, all below the 10 μm limit), metal removal 0.142-0.326 mm per 100 m·pass, and wheel consumption similar to the incumbent while cutting more metal. The No.2 Molaton formulation showed the best combined wear-to-cut ratio.Earlier, a 600+ wheel batch on the Shuohuang heavy-haul line (2023.9-2024.5, 130-173 km·passes per stage) was accepted with all quality checks graded "good".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.Related questions you may also askMolaton vs Norton wheel for Loram — full comparisonDomestic vs imported grinder wheels — 5 key indicatorsRail grinding wheels for African railways — Loram, Harsco and Speno fleetsFit Molaton wheels to your Loram fleetTell us your Loram machine model and grinding programme — we will confirm the G3 specification, arrange a single-head field trial, and supply in the quantities you need.Discuss a Loram Wheel Trial

Question 7

Pick the wheel by machine and corrugation: Molaton MRC-L260090 (260x90x154 mm, ZA 16 grit, 50 m/s) for grinding trains, MRC-S for portables - field-proven at up to 2x imported wheel life.

Accepted Answer

How do I choose the right rail grinding wheel to remove rail corrugation?Choose the wheel in three steps: (1) match the machine (grinding train vs portable) so the bore and diameter fit the arbor; (2) match the defect — zirconia alumina (ZA) 16-grit resin-bonded wheels for wave lengths above 30 mm and deeper corrugation, balanced to ≤30 g and rated 50 m/s; (3) verify with a small field trial before full roll-out.12-head rail grinding vehicle removing corrugation during a night-time maintenance windowWhy corrugation is the wheel's toughest jobCorrugation appears as alternating wide and narrow bands on the rail head. It is defined by its wavelength and depth, and it drives noise, vibration and dynamic impact loads. Removing it is demanding because the wheel must cut fast enough to erase the wave within a short possession, while keeping the ground surface free of burns and below Ra 10 μm — our standard finish after corrugation passes.Six selection factorsFactorRecommendation for corrugation removalAbrasiveZirconia alumina (ZA) — 308 MPa grain strength vs 124 MPa for calcined brown alumina; better cut and longer lifeGrit16 grit (coarse) for fast stock removal; follow with a fine pass if the finish spec is tightBondResin bond with glass-fibre reinforcement to survive impact loading and avoid fractureSize & boreMust match the grinding head, e.g. 260x90x154 mm for PGM-48/96C class vehiclesBalanceBatch-balanced (≤30 g per GB/T 2492) to prevent chatter, burning and short lifeSpeed ratingMinimum 50 m/s working speed for grinding trains (our standard is tested to 4775 rpm for 30 s without rupture)Field evidence — why the right wheel mattersOn Liuzhou GMC-96X (2022, Guilin), Molaton wheels ground 18.72 km·passes in a 2-hour night window with 20-30 mm wear per wheel vs 43.5-59 mm for the imported reference — about twice the durability at equal surface quality. On Yiyang Line and Shuohuang heavy-haul, the fleet averaged 5.7 and 4.98 km·passes per mm of wheel wear. Laboratory tests (8 kW, 2400 rpm) showed defect elimination in 2-3 passes vs 4-6 for ordinary wheels.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.Related questions you may also askWhat causes premature wheel wear — and how to prevent it?Rail corrugation elimination — from theory to practiceRail corrugation and RCF control on African railwaysSpecify the right wheel for your corrugation jobSend us your grinding machine model, a corrugation photo or measurement, and your current part number. Our engineers will confirm the exact Molaton wheel within 24 hours.Get a Wheel Recommendation

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