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Features :- Volvo Motor Graders
- G730B
Motor graders are often discussed in terms of weight and horsepower specifications. These specifications indicate the size of the machine, but say nothing about grader productivity. At Volvo, we know that grader productivity is measured by the work graders do - cutting and pushing. Grader productivity is not simply a function of weight and horsepower, but more importantly, where the weight is placed and how it is applied to the ground.
Specifications :- Volvo
Motor Graders
- G730B
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G730B
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specifications
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Engine
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Volvo
D7DGCE2
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Net engine power
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198-221
hp (148-165 kW)
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Number of driven wheels
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4
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Overall length
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29'11"
(9.119 m)
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Overall width
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8'4"
(2.540 m)
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Wheelbase
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20'0"
(6.096 m)
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Bladebase
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8'6"
(2.591 m)
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Blade length
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12'0"
(3.658 m)
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Operating weight
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35,500
lb (16,103 kg)
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Minimum turning radius
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25'6"
(7.772 m)
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Grader capability
Unlike other construction equipment, the business end of a grader is in the middle. At Volvo, we build graders to distribute the weight where it translates into more cutting capability at the blade edge. Since the weight of all motor graders is concentrated at the back of the machine, Volvo engineers have moved the blade as far back toward the rear of the machine as possible. This takes advantage of the rear weight, but is still well inside the operator's line of sight. Volvo recognized the importance of a long bladebase many years ago and as a result, our graders offer the highest cutting capability.
The other secret to proper weight distribution is at the rear of the machine. By strategically positioning the powertrain components, we get even distribution of weight to each rear driven wheel. This optimises the machine's pushing capability
Blade down force
The calculation of "Blade Down Force" or cutting capability, identifies two things as important in determining cutting capability - front weight and a long bladebase. Volvo Graders combine lots of weight up front with a long bladebase to optimise the amount of machine weight that can be applied to the ground at the blade edge.
Pushing capability
Pushing capability, too, is a function of weight and where it is placed. Seventy percent of the grader’s weight is at the rear. Distribution of that weight to best apply it to the drive wheels is critical. By positioning the powertrain components strategically, Volvo Graders apply more power to the ground.
Because graders do work at all speeds, in all seasons and dozens of different applications, the Volvo G700B Series Graders utilize a matched set of powertrain components delivering the right kind of power and speed when and where it’s needed.
Volvo Graders are equipped with fuel efficient 7.1 liter or 9.6 liter turbo charged, high performance, low emission diesel engines, featuring electronically controlled injection and intercooler. All Volvo engines are Stage II/Tier II compliant. Cooling is thermostatically controlled, with a variable speed fan that only runs when there is a cooling demand. This means optimal use of power and lower fuel consumption. The engines are also designed to deliver superior performance and reliability, especially matched to the proven Volvo 8400 transmission. 4 wheel oil disc brakes and lock/unlock final drives complete a powertrain package second to none in the industry.
Only G700B All Wheel Drive Models work up to 20.4 mph (32.7 km/h) for optimum snow clearing performance. This innovative AWD System is available in the G726B and G746B Graders. Volvo All Wheel Drive Motor Graders are like three drive systems in one – 2, 4 or 6 wheel drive. In 2 wheel drive, only the front wheels are powered from 0 - 2.0 mph (0 - 3.2 km/h), ideal for slow speed fine grading. In 4 wheel drive, you have a highly efficient tandem grader. In 6 wheel drive, you get an extra 7,500 lb (3,400 kg) more blade pull and up to 20.4 mph (32.7 km/h) for operation in poor footing or snow plowing.
Every inch of a grader is under stress from every imaginable direction. So, you need a frame that can carry the load while protecting the powertrain components. Day in and day out, grader frames continuously absorb extreme stresses: in the front frame from heavy drawbar loads and in the rear frame from side and rear mounted attachments.
The Volvo frame is unequalled in its ability to handle these stresses through a high section modulus, box beam front frame and a full perimeter rear frame. The "B" Series front frame is robust enough to support the circle and moldboard, even at high speed and provide a firm foundation for front attachments.
Duramide™ bearing material eliminates metal-to-metal contact and reduces the need for circle turn lubrication and adjustment. As well as being simple and cost effective to replace, it has a minimum service life of more than 5,000 hours.
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