pusher tractor

pusher tractor

[′pu̇sh·ər ‚trak·tər]
(mining engineering)
A bulldozer exerting pressure on the rear of a scraper-loader while the loader is digging and loading unconsolidated ground during opencast mining.
References in periodicals archive ?
Contract award: supply, delivery and installation of various material recovery, bi carts temperature with preventive maintenance and associated pusher tractor electric heaters, brick carts clearing.
The FLP was shipped in four separate segments: two smaller loads on conventional tractor-trailers rigs, the third segment on a 14-axle, 165-feet- long rig, and the fourth and largest on a separately steerable, 29-axle rig propelled by a high-power diesel tractor and a pusher tractor.