When it comes to domestic high - end commercial vehicles, many users will surely think of Sinotruk (China National Heavy Duty Truck Group)'s SITRAK. Relying on the production concept of "import substitution" and high - quality products, the sales volume of this brand has been increasing year by year. In March this year, the production and sales volume even exceeded 5,000 units.
Recently, Sinotruk SITRAK has undergone a major update. Based on inheriting the characteristics of being economical, reliable, safe, comfortable, and intelligent, the new - version SITRAK has also achieved satisfactory results in lightweight design. Take the SITRAK G7 photographed this time as an example. Its minimum curb weight is only 8.1 tons, and it is equipped with a four - direction imaging system.
The vehicle model in the real - shot: Sinotruk SITRAK G7, high - roof, second - top - of - the - range configuration. (Tip: Compared with SITRAK C7, the positioning of SITRAK G7 is more economical.)
Orange - red is kind of the iconic color of SITRAK, which makes the avant - garde - designed front of the vehicle more visually impactful. More importantly, all the designs of the front of the vehicle are fully combined with the effect of low wind resistance to reduce unnecessary fuel consumption as much as possible.
It is equipped with the Sinotruk MC11.46 - 50 engine, with a displacement of 10.518 liters, a maximum power of 460 horsepower, and a peak torque of 2,200 N·m. It meets the National V emission standard through SCR (Selective Catalytic Reduction) after - treatment technology.
At present, SITRAK is matched with Sinotruk MC11 and MC13 series engines, with horsepower ratings of 400, 440, 460, 480, and 540, fully meeting the needs of different working conditions. In addition, SITRAK National VI models have been launched and sold in some large - scale cities, and the product update speed is very fast.
The integral cylinder head, and the cylinder block and cylinder head have independent water and lubricating oil channels to avoid the mixing of engine oil and water.
- The cylinder block is made of vermicular graphite cast iron material, with a 75% increase in tensile strength and a 200% increase in fatigue strength!
- The main bearings adopt the internationally leading fracture - splitting process. The rough fracture - splitting surface can provide nanometer - level precise positioning, provide lateral support, reduce bearing wear, and extend the engine life.
The transmission system is matched with the Sinotruk HW25712XSTCL twelve - speed gearbox, with an oil injection volume of 12 liters. The first - gear ratio is 11.697, and the 12 - gear ratio is 0.783. The main gearbox has a double - countershaft all - helical - gear structure, and the auxiliary gearbox has a planetary reduction structure. There are various operation methods, which can be operated by a single lever, a double - lever, or directly.
The Sinotruk MCY12BGK drive axle is standard - equipped with maintenance - free SKF/Koyo bearings, with a gear ratio of 3.7. According to the calculation of the Truck Home vehicle speed calculator, when the engine speed is 1,400 rpm, the vehicle speed is approximately 95.8 km/h
