Excavator

The loader bucket describes the earth moving function of several types of earth moving equipment.

First there is the small front loader attachment to the farm tractor which allows the farmer to clean up the barn waste, move hay and feed and participate in farm construction. This is smaller than the heavy duty loader buckets having a capacity of only 3-5 cubic yards.

Farm construction involves the building of interior roadways and driveways, construction of barns and chicken colonies. These efforts often require the assistance afforded by the loader bucket attachment to the common farm tractor.

Other attachments can be used with it to assist in digging fence post holes in hard and rocky soil. Farming tractors have a power take off which even allows the rancher to connect a large circular saw with which he can cut fire wood during land clearing.

The loader bucket attachment is just one device for the farm tractor that provides an economical and practical solution to help the farmer run a successful business.

There are bigger earth equipment, known as loader buckets which support dump trucks, city and county urban utility works, local construction firms, lumber mills and large national chain hardware stores. These are usually four wheeled powered diesel vehicles with articulated steering.

Their bucket capacity is often between 30 - 50 cubic yards. They can load the large 18 wheeled dump trucks in record time and assist greatly in moving extremely large amounts of top soil, construction debris and rock.

They are often used by city street commissioners to load the sand and salt trucks used in turn to prepare the streets and highways in the winter time. When large housing developments are constructed they often require massive terraforming which necessitate the use of these large loader buckets since gigantic amounts of earth are moved from one place to another

. The sale of various grades of base course and landscaping rock have brought the use of the loader buckets to assist in the loading of these product for the clientele in the large national chain hardware stores.

There once existed the largest mining loader buckets known in the USA at the Lavender Mines, Bisbee, Arizona. These monsters stood two stories high, twelve feet wide and could carry over 18 cubic tons of copper ore in their loader buckets.

The wheels that supported these monsters were inflated with 90 weight oil and required a small crane to change. They could quickly fill the mine's dump trucks which were also huge, carrying over 100 metric tons of ore.

The ore was transported to the conveyor belt system which carried the ore to the smelter operation located a mile and half from the mining pit. There the total cost of digging one of the deepest open pit mines was paid for by the extraction of gold, silver and platinum.

Port dredging operations are often assisted by huge overhead cranes fitted with cable controlled loader buckets. These are mounted on stable port barges which are towed throughout the port.

The monstrous bucket is lowered by means of a system of cables on the overhead crane. The bucket is drawn along the bottom of the port, scooping up excess earth washed there from the waterways and erosion.

It is pulled by a secondary barge with the necessary pulleys and cables. The port loader bucket keeps vital ports open to accommodate the shipping that keeps them alive.

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