A shovel with a 3.75-cy wheel loader will be used to load trucks from a quarry...

A shovel with a 3.75-cy wheel loader will be used to load trucks from a quarry stockpile of

processed aggregates having a maximum size of 3/8 inch. The haul distance will be negligible.

The aggregate has a loose unit weight of 2950 lb/cy. Estimate the loader production in tons

based on a 50-min hour efficiency factor. Use an aggressive cycle time and fill factor.

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Ally Wells answered 1 year ago

A 4-cy wheel loader will be used to load trucks from a quarry stockpile of uniform...

A 4-cy wheel loader will be used to load trucks from a quarry stockpile of uniform aggregates (1" and over in size). The haul distance will be negligible. The aggregate has a loose unite weight of 2,750 lb/cy. Estimate the loader production in tons based on a 50 min-hour efficiency factor. Use a conservative cycle time and fill factor.

A load trucks is using a hoe equipped with a special 3½ cy light weight bucket....

A load trucks is using a hoe equipped with a special 3½ cy light weight bucket. Working efficiency is a 45 min-hr efficiency. The material is a sandy clay, 2,600 lb./lcy. The digging face will have an average height of 60% of max. digging depth and the angle of swing will always be less than 60º. The round-trip time of either truck, exclusive of load time, is 5 minutes Consider 2 truck sizes • 18 lcy and 26 lcy. •...

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A shovel with a 3.75-cy wheel loader will be used to load trucks from a quarry...

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A 4-cy wheel loader will be used to load trucks from a quarry stockpile of uniform...

A load trucks is using a hoe equipped with a special 3½ cy light weight bucket....