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Specifications:

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Howo A7 Dump Truck |
Chassis Model | ZZ3257N3647N1 (Left Hand Driving Type) |
Production Year | New truck. |
Cabin | A7-W cab, with 1 sleeper and? two seats, 2-arm windscreen wiper system with three speeds, damped adjustable driver& acute;s seat, with heating and ventilating system, exterior sun visor, safety belts,? adjustable steering wheel, air horn,air conditioner , with transverse stabilizer,with 4-point support fully floating suspension + shock absorber. |
Engine | Make: SINOTRUK Diesel 4-stroke direct injection diesel engine Engine model: D12.42, Euro 3, 420 HP 6-cylinder in-line with water cooling, turbo-charging and intercooling Displacement: 11.592 L |
Transmission | HW19710, 10F & 2R, with PTO Ratio: 14.28, 10.62, 7.87, 5.88, 4.38, 3.27, 2.43, 1.80, 1.34, 1.00, 13.91(R1), 3.18(R2) |
Steering | ZF power steering, modol ZF8098, hydraulic steering with power assitance |
Front Axle | HF9, 1x9000 KGS Steering with doubleT-cross section beam |
Rear Axle | HC16, 2x16000 KGS Pressed axle housing, central single reduction with hub reduction and with differential locks between wheels and axles. Ratio:5.73 |
Propeller Shaft | Double universal joint propeller shaft with gear-shaped coupling flange |
Chassis | Frame: U-profile parallel ladder frame with section of 300x80x8mm, and reinforced subframe all cold riveted cross members?????????????????????????? Front suspension:10 semi-elliptic leaf spring, hydraulic telescopic double-action shock absorbers and stabilizer?????????????????????? Rear suspension:12 leaf semi-elliptic springs, bogie spring and stabilizer |
Brake | Service brake: dual circuit compressed air brake Parking brake (emergency brake): spring energy, compressed air operating on front shaft and rear wheels Auxiliary brake: engine exhaust brake |
Electrics | Operating voltage: 24 V, negative grounded ?????????????????????????? Starter: 24 V, 5.4 Kw???????????????????????? Alternator: 3-phase, 28 V, 1500 W ????????????????????????? Batteries: 2 x 12 V, 165 Ah??????????????????????? Cigar-lighter, horn, headlamps, fog lights, brake lights, indicators and reverse light |
Tyres | 12.00R20, radial tyres with one spare tyre |
Fuel Tank | 400L |
Cargo Body | 5400*2300*1300, 16.15 CBM, floor 8 mm and side 6 mm. |
Overall Dimension | 8500*2550*3500 mm |
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Engine
?The engine modified by using Sinotruk patented technology not only fully meets the requirement of GB7258 & quot;Technical Conditions of the Safe Operation of Motor Vehicles& quot; on the specific power of combination vehicle but also properly satisfies the requirement of GB1589 on the sub-file limit of combination vehicle with different number of axles. Power classification is reasonably adjusted, divided into 266PS, 290PS, 336PS, 371PS, and 410PS. The whole power system is comprehensively upgraded. The power is stronger; fuel consumption is more economical; and the emission is cleaner. In terms of power coverage and system matching, our engine is unparalleled in the domestic market. It has the following features.

1. The intake and exhaust system is comparable with that of the European trucks. The smoother and more efficient air intake and exhaust greatly prolong the service life of the engine and reduces its wear.
a. The intake system can solve the engine& acute;s problem of water inflowing to the maximum extent. By virtue of the unique design ideas, it is ensured from the structure that water can not enter the engine.
b. The multi-stage dust - exhaust air filter device makes the incoming air cleaner.
c. The diameter of the exhaust pipe is increased to 130 mm according to the European standards. Significant improvement has been made to the joint connection, making exhaust smoother and resistance smaller.

2. The adoption of specialized technology and the overload test of accessories improve the reliability of the engine. Relying on the technical strength of Sinotruk in the industry, a large number of proprietary technologies have been applied in the key parts of the engine. As a result, the engine& acute;s reliability is improved substantially and its fuel consumption is greatly reduced. In laboratory condition, the fuel consumption per a hundred kilometers is less then 30L. This reaches the international level and is the best in China.

3. Emissions are in full compliance with the requirements of Euro II regulations. After adjustment, it can even reach the Euro Ⅲ standard.
In addition, our dump truck adopts the braking way of disc brake for front wheels and drum brake for rear wheels. This effectively shortens the braking distance and ensures driving safety. The standard configuration of our product include tubeless tires which have many advantages, such as light deadweight, good balance, low heat generation, wear resistance, etc. Due to small rolling resistance, fuel consumption can be saved by about 5%.