Máy ủi CAT D9R 2018

Mô tả chi tiết sản phẩm

ENGINE The 3408C engine is a field proven engine that delivers excellent reliability and durability in all applications. HIGH TORQUE RISE The 18 liter engine delivers a high torque rise, providing excellent lugging capacity to move heavier loads more efficiently. SIMPLICITY The mechanically controlled engine provides easy maintenance and repair in remote areas where diagnostic tools may not be available. HIGH TENSILE STRENGTH BLOCK The 3408C block is cast from high-tensile-strength gray iron. The one piece casting is stabilized to maintain internal dimensions under all operating conditions. FOUR VALVE CYLINDER HEADS The engine uses two intake and two exhaust valves with hardened valve faces that are designed to be reground. Rotators turn the valves about three degrees each lift to distribute wear and maintain heat transfer. Valve stems are made from hardened, chrome plated steel to provide excellent wear and heat resistance. COOLING An internal top-deck cooling shelf increases coolant flow to the top of the cylinders for long cylinder liner and piston life. The deep-skirted lower structure and heavy internal ribbing add strength and rigidity to the block. CARBON STEEL FORGED CRANKSHAFT The crankshaft is a carbon steel forging, fully heat-treated, super-finished and dynamically balanced.