Pioneer Cast iron wheels with either V-groove (VG), Square groove (SQG), or a Flange (FLG) are available depending upon the track over which the castors has to move. Since the wheels roll over steel track, the pushing or pulling force required is much less, reduces labour fatigue. Floor surface also does not get damage at any time. Hardness of Casting : ( 175 ±10 ) BHN Grade of Casting : FG200 as per IS-210 Maximum Working Temperature : 250°C