Tractor Unit, HOWO7

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HOWO7 tractor unit carries the Sinotruk WD615 series engine that is the most representative engine for heavy trucks. Large displacement and large power enables the engine to provide the vehicle with sufficient power at low speed. In addition, this engine comes with wide speed range that ensures perfect fuel economy and driving performance.

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4x2

4x2 Tractor Unit, HOWO 7

HOWO-7 Tractor basic configurations and main technical parameters (4X2, Euro II, high floor extended)
Vehicle model		ZZ4187M3517C	ZZ4187N3517C	ZZ4187S3517C
Cab	Model	HW76
	Type	High floor extended cab, four-point air suspension shock absorber transverse stabilizer, splited single berth, air suspension driver's seat, up /down and front/back adjustable steering wheel, BEHR European-style new integral A/C heater, VDO instrument, CAN bus and electrics control system, safety belt with double locking mechanism, electric window lifter and heated review mirror, three locks combined in one, exterior sun visor, top wind deflector side air deflector, electronic hand throttle.
Engine	Model	WD615.87	WD615.69	WD615.47
	Rated power, kW/rpm	213/1,900	247/2,000	273/2,000
	Maximum torque, Nm/rpm	1,490/1,200-1,500	1,590/1,200-1,500	1,650/1,100-1,500
	Displacement, L	9.726	9.726	9.726
	Type	Inline 6 cylinder, supercharged intercooling, central supercharger, electronic high pressure and common rail
Clutch		Φ430 diaphragm spring clutch, hydraulic control air power assisted. Standard 430A type for D10.38, D12.38 and D12.42 engine, and standard 430B for D10.34 engine.
Gearbox		SINOTRUK HW series 10 speed transmission, main and auxiliary transmission structure, main transmission with double countershaft, auxiliary transmission with planetary reducer.
Front axle		HF7, rated load of 7t, disc-type or drum-type
Rear drive axle		ST16 double reducer (speed ratio of 3.93; 4.42; 4.8)
Supension		Front and rear leaf spring suspension shock absorber transverses stabilizer
Steering system		ZF8098 steering gear,ZF steering oil pump, system pressure of 18MPa
Brake system		Service brake: dual -circuit pneumatic brake;parking brake: energy storage spring air brake; auxiliary brake: EVB engine exhaust brake. With ABS optional automatic slack adjuster
Electrical system		CAN bus control, valtage: 24V; generator: 2240W; starter:7.5kW; battery: 12V/165Ah, 2 pieces
Tyre		315/80R22.5 tubeless tire ;12.00R20 radial tire
Tank volume, L		Standard 400L, optional 600L
Kerb weight, kg		6,800	6,800	6,800
Gross mass, kg		18,000	18,000	18,000
Authorized maximum towed mass, kg		35,000	35,000	35,000
Permissible fifth wheel load, kg		11,070	11,070	11,070
External dimensions (length×width× hight ),mm		6160×2,496×3,560	6160×2,496×3,560	6160×2,496×3,560
Wheelbase, mm		3,500	3,500	3,500
Front/rear overhang, mm		1,540/1,120	1,540/1,120	1,540/1,120
Wheel track(front/rear), mm		2,022/1,830	2,022/1,830	2,022/1,830
Minimum ground clearance, mm		314	314	314
Approach/departure angle		15/38	15/38	15/38
Maximum speed,km/h		95	100	100
Maximum parking slope, %		20	20	20
Minimum turning diameter, m		14	14	14
Ground dearance of fifth wheel joint face (unloaded) mm		1,325	1,325	1,325
Front/rear turning radius, mm		1,950/1,860	1,950/1,860	1,950/1,860
Traction pin specification		50 #( 2 in.)	50 #( 2 in.)	50 #( 2 in.)
Remark

6x4

6x4 Tractor Unit, HOWO 7

Product	Brand	HOWO-7 tractor basic configurations and main technical parameters (6X4, Euro II, high floor extended)
Tractor	HOWO 7	Vehicle model		ZZ4257M3247W	ZZ4257N3247W	ZZ4257S3247W
		Cab	Model	HW76
			Type	High floor extended cab, four-point full floating air suspension shock absorber transverse atabilizer, splited single berth, air suspension driver's seat, up /down and front/back adjustable steering wheel, BEHR European style new integral A/C heater, VDO instrument, CAN bus and electrics control system,safety belt with double locking mechanism,,electric window lifter and heated reaview mirror, three locks combined in one, exterior sun visor, top wind deflector side air deflector, electronic hand throttle.
		Engine	Model	WD615.87	WD615.69	WD615.47
			Rated power, kW/rpm	213/1,900	247/2,000	273/2,000
			Maximum torque, Nm/rpm	1,490/ 1,200-1,500	1,590/ 1,200-1,500	1,650/ 1,100-1,500
			Displacement, L	9.726	9.726	9.726
			Type	Inline 6 cylinder, supercharged intercooling, central supercharger, electronic high pressure and common rail
		Clutch		Φ430 diaphragm spring clutch, hydraulic control air power assisted. Standard 430A for D10.38 、 D12.38 and D12.42 engine, and standard 430B type for D10.34.
		Gearbox		SINOTRUK HW series 10 speed transmission , main and auxiliary transmission structure, main transmission with double countershaft auxiliary transmission with planetary reducer.
		Front axle		HF7, rated load of 7t, disc-type or drum-type
		Rear drive axle		ST16 double reducer (speed ratio of 3.93;4.42;4.8)
		Supension		Front and rear leaf spring suspension , front suspension with shock absorber, transverse stabilizer, rear suspension is disconnected type with transverse stabilizier .
		Steering system		ZF8098 steering gear, ZF steering oil pump, system pressure of 18MPa
		Brake system		Service brake : dual -circuit air pressure brake; parking brake: energy storage spring air brake; auxiliary brake: EVB Engine exhaust brake.With ABS optional automatic slack adjuster.
		Electrical system		CAN bus control, voltage: 24V; generator: 2240W; starter: 7.5kW; battery: 12V/165Ah, 2 pieces
		Tyre		315/80R22.5 tubeless tire ; 12.00R20 radial tire
		Tank volume, L		Standard 400L, optional 600L
		Kerb weight, kg		6,800	6,800	6,800
		Gross mass, kg		18,000	18,000	18,000
		Authorized maximum towed mass, kg		35,000	35,000	35,000
		Permissible fifth wheel load, kg		11,070	11,070	11,070
		External dimensions(length× width× hight ), mm		6160× 2,496× 3,560	6160× 2,496× 3,560	6160× 2,496× 3,560
		Wheelbase, mm		3,500	3,500	3,500
		Front/rear overhang, mm		1,540/ 1,120	1,540/ 1,120	1,540/ 1,120
		Wheel track(front/rear), mm		2,022/ 1,830	2,022/ 1,830	2,022/ 1,830
		Minimum ground clearance, mm		314	314	314
		Approach/departure angle		15/38	15/38	15/38
		Maximum speed,km /h		95	100	100
		Maximum parking slope, %		20	20	20
		Minimum turning diameter, m		14	14	14
		Ground dearance of fifth wheel joint face (unloaded), mm		1,325	1,325	1,325
		Front/rear turning radius, mm		1,950/ 1,860	1,950/ 1,860	1,950/ 1,860
		Traction pin specification		50 #( 2 in.)	50 #( 2 in.)	50 #( 2 in.)
		Remark

The tractor unit is provided with automatic-manual transmission with intelligent gear shift, disc brake and 430 pull-type diaphragm spring clutch that are the first in China to be used on the prime mover trucks. It is the newest generation of heavy duty trucks in China, created by Sinotruk in 3 years and proven in multiple tests in various types of complex environments.