Overview of Cummins Engine N Series NT & NTA
From a series that is service-proven through millions of hours of operation in some of the world's
most demanding applications, the NT855 has been engineered to handle higher injection pressures,
with redesigned overhead arrangement, pistons, crankshaft and camshaft. A gear train with high
contact ratio spur gears also eliminates unwanted thrust loads and reduces noise.
In line with the rest of the NT family, wide-ranging benefits including fuel efficiency, low oil
consumption, reliable long life, high power and durability.
Super power
Power covers 185-545 horsepower, the maximum torque is 1763 Newton meters, the low-speed torque is
large, the start is fast, and the climbing ability is strong. Weight 1838 kg , the power weight
ratio.
Low fuel economy is good
Cummins PT fuel system patented technology, high injection pressure, ensure that the engine good
atomization, combustion.
Efficient Holset turbocharger exhaust intake ensures more fully , improve engine efficiency and
further improve combustion and reduce engine specific fuel consumption.
Air-to-air cooling technology ensures more sufficient air intake and better fuel economy.
Compact, easy to maintain
Replaceable wet cylinder liners , cooling effect , easy to replace.
All models parts versatility , high degree of serialization , and easy maintenance.
Block and head are taking a built-in pressure lubricants Road , compact , low failure rate
Advanced design and reliable performance
Cylinder block: made of high-strength alloy cast iron, with good rigidity, low vibration and low
noise.
Cylinder head: Four valves per cylinder design, optimized air/fuel mixture ratio, effectively
improving combustion and emissions; two cylinders and one head, easy maintenance.
Camshaft: The large-diameter camshaft can withstand higher loads. The new design can accurately
control the valve and injection timing. The optimized cam profile can reduce the impact force and
improve the reliability and durability.
Crankshaft: The integral crankshaft is made of high-strength forged steel. The induction hardening
process of fillet and journal can ensure higher fatigue strength of the crankshaft.
Piston: Using the latest aluminum alloy casting technology, the design of ω-shaped head and
barrel-shaped skirt can compensate for thermal expansion and contraction to ensure a good fit.
There are more categories and models than what we show here. Please CONTACT US for querying more products.