All manufacturers graders consistently optimize the model series, mainly in the direction of heavy machinery in an effort to ensure that the range covered as much as possible niches, while getting rid of the domestic competition. Increasingly articulated and all-wheel drive models, smaller - cars with a rigid frame. Engine power is utilized optimally, reduces emissions of harmful substances into the atmosphere. More powerful engines meet the requirements of regulations EPA Tier 2 and Stage 2. The new gearbox is now freeing the operator from the numerous manipulations. Electronic systems monitor and control the engine, hydraulic system, working bodies. Being improved ergonomics and improved workplace safety statement. ROPS-FOPS cab gradually becoming standard equipment. In 1997, Volvo Construction Equipment has acquired a Canadian company Champion Road Machinery Ltd., Having great experience in creation and production graders. Volvo for some time kept the brand Champion for Series A, but in 2000 introduced a new generation graders already under your name. Now Volvo Construction Equipment two series: compact graders and medium and heavy graders Series B. Developers Volvo CE seriously updated series of compact graders, reducing it to four models: G60 and G66, G80 and G86. All compact models equipped with 4-liter diesel Cummins. Hydrostatic transmission allows you to accurately and smoothly pick up speed with the grading work. In working mode range of speeds back and forth from 0 to 16 km / h in the transport - from 0 to 32 km / h. Managed front-wheel drive deflected vertically on the left-right angle of 15 ° and swing the frame at an angle of 35 °. Articulated frame "breaks" in front of cabin at an angle to 37 °, at the expense of the turning radius is 5 m. The turntable greydernogo Blade rotates two hydraulic cylinders at 120 °. T-shaped traction frame supported by two hydraulic cylinders lifting-lowering of the embankment. Compact motor graders are equipped with additional equipment - dozer blade, front and rear rippers, etc. Series In medium and heavy graders includes five models with a drive for balancing truck (tandem drive). Their sets 6-cylinder diesel Volvo working volume of 7,1 ... 9,6 l power of 105 ... 181 kW turbocharged, intercooler and electronic fuel injection, four-wheel drive model G726B and G746B - engine capacity 148 ... 181 kW. The engines comply with the rules Tier 2 and Stage 2. Automatic Sequential Manual Gearbox (manual) Volvo 8400 provides eight forward gears (five for the excavation at a speed of 17,7 km / h, a high speed for road works, one for snow removal and one transport). Selector electronic transmission control Smart Shifter when you start the machine carries out self-diagnosis. Hydrostatic drive system is front wheel four-wheel drive models consists of two piston pumps, variable performance, two-speed motors in each front wheel and speed sensor. The rotation of the front wheels in line with the rotation of the wheel balancing carts. Full drive-off includes the operator and can be utilized at the 1-7-th forward and all reverse gear. The operator can switch from 7 th to 8 th transmission and back at any time, front-wheel drive is automatically switched-off. Speed wheel drive 32,5 km / h. In a special mode Creep Mode (to perform very precise, filigree movements) grader moves at speeds up to 3,2 km / h only through the front wheels. Articulated frame located behind the cab operator. Dual Cylinder "breaks" the frame on the left-right angle to 22 °. Turning radius with a "fracture" of the frame, bend the front wheel and unlock the differential - 7 798 mm. The turning circle on Narrow T-shaped traction frame rotates through 360 °. The seat in the cab and rack panel are regulated independently of each other. Controls and instruments are conveniently located at 90 ° sector in front of the operator and the right of it. "Nerve center" of operator's workplace is a multifunctional system monitoring Contronic, which informs the operator about the state of components and systems for graders, records and stores the data for later download to computers and technical services. A wide range of additional equipment graders Volvo CE: greydernye dumps of various sizes, extensions, front and side snow plows, road brush, bulldozing piles, loggers, and others at the cockpit can install a flashing beacon, extra marker lights front and rear position lamps on snow plows . The Corporation Caterpillar Inc. enormous intellectual capital in the development, manufacture, service and modernization graders. By creating a series of N, designers inspired by the experience of operation of the previous series G, striving to increase productivity, comfort, simplicity and ease-of-service machines. In addition to improved popular models 120N, 12N, 140N, 14N and 16N in a series of N features new, with tandem drive - 135N and 160N and 143N and 163N-wheel-drive. Extending the range to 9 models, Caterpillar has sought to take every possible niche. Wheel-drive model 143N and 163N for work with heavy soils and are effective in clearing roads of snow. Series H equip 8-speed manual with electronic control, and now in each operating mode has an additional channel. New or modified engines are powerful, economical of their predecessors and meet the requirements of Tier 2 standards. Models 120N, 135N, 140N, 160N, and four-wheel drive models are equipped with an engine output control system (SUMD), increases productivity. Long wheelbase graders a series of H allows to work with dumps, set with a lower cutting angle. This chip is turned loose, which requires less power. As a result, fewer workers passages, increases efficiency and productivity. To improve visibility from the cab pushed back Blade, Blade mount was removed from the sight of the operator, increased glass area, the exhaust pipe and air cleaner placed on one line. Control lever with a shortened course located in the cabin so that one hand can easily operate with just a few levers. Improved sound insulation of the cabin, contoured seat with an elongated backrest, armrests and seat belt equipped with different rules, upgraded heating and air conditioning.