Rates, Norms & Durations
Rail Grab
In the Open Standard
Machine Rail Mounted Hydraulic Grab Rate of 30 - 50 m3 of sand per hour (dependant upon depth), with 1.5 m3 made (2.0 m3 bucket) with each machine lift. Giving a required lift rate of 2.4 mins. A rate of 37 m3/hr (per rig) was achieved on HK Station box excavation. This was achieved with inadequate
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Open the norms tables →Machine Rail Mounted Hydraulic Grab
Rate of 30 - 50 m3 of sand per hour (dependant upon depth), with 1.5 m3 made (2.0 m3 bucket) with each machine lift. Giving a required lift rate of 2.4 mins.
A rate of 37 m3/hr (per rig) was achieved on HK Station box excavation. This was achieved with inadequate supervision and and long breaks etc. The standard lift time was 3 mins.
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