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Diecast Masters 1:87 Caterpillar 627G Wheel Tractor Scraper

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MSRP: $27.95
$25.95
(You save $2.00 )
SKU:
I7-4-3-85134
UPC:
1282926494784
5 customers are viewing this product
Diecast Masters 1:87 Caterpillar 627G Wheel Tractor Scraper

Diecast Masters 1:87 Caterpillar 627G Wheel Tractor Scraper
MSRP: $27.95
$25.95
(You save $2.00 )

In civil engineering, a wheel tractor-scraper (also known as a Tournapull) is a type of heavy equipment used for earthmoving. It has a pan/hopper for loading and carrying material. The pan has a tapered horizontal front cutting edge that cuts into the soil like a carpenter's plane and fills the hopper which has a movable ejection system. The horsepower of the machine, depth of the cut, type of material, and slope of the cut area affect how quickly the pan is filled. When full, the pan is raised, the apron is closed, and the scraper transports its load to the fill area. There the pan height is set and the lip is opened (the lip is what the bottom edge of the apron is called), so that the ejection system can be engaged for dumping the load. The forward momentum or speed of the machine affects how big an area is covered with the load. A high pan height and slow speed will dump the load over a short distance. With the pan set close to the ground, a higher speed will spread the material more thinly over a larger area.

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