HW12 Series Heavy Duty Auto Transmission

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This HW12 series heavy duty auto transmission is a lightweight product with compact structure. Its main box possesses twin countershaft structure, and its auxiliary box features planetary gear reduction structure. Thus, the load-bearing capacity is strong, and the structure is reliable.

Moreover, our heavy duty auto transmission provides distinct operation types, such as single lever type, dual lever type, and direct manipulation type. The design of integrated gear selecting-shifting allows the gear to be engaged easily. Our main box is able to take power in neutral gear. Due to the combination of forced lubrication and gear splash lubrication, this transmission can achieve fuller lubrication and adaptable to all kinds of road conditions.

Optional Components
The full aluminum housing of gearbox is available as choice. Our product can also adopt the power takeoff of different types, such as HW50, HW70, HW80Q, and some others.

Application Fields
This heavy duty auto transmission can be suited for both road vehicles and engineering vehicles.

Main Parameters

Model	Rated Input Torque (N·m)	Weight (kg)	Volume of Fuel (L)	Total Length (mm)	Optional Aluminum Housing
HW19712C	2100	393	13(13.5)	915	Yes
HW19712	1900	393	13(13.5)	915	Yes

Velocity Ratio of Each Gear

Model	Transmission Gears
Model	1	2	3	4	5	6	7	8	9	10	11	12	R1	R2
HW19712CL/HW19712C	11.8	9.17	7.1	5.61	4.38	3.44	2.7	2.1	1.62	1.28	1	0.79	10.85	2.48
HW19712L/HW19712	15.01	11.67	9.03	7.14	5.57	4.38	3.43	2.67	2.06	1.63	1.27	1	13.81	3.16

Optional Models and Parameters of Power Take-off

Model	Output Rotation Direction (compared with engine)	Velocity Ratio	Rated Output Torque (N·m)	Output Form	Direct-gear Output Velocity Ratio	Over-gear Output Velocity Ratio
HW50	Same	0.74	500	Flange	0.63	0.64
HW70	Same	0.76	700	Flange	0.65	0.66
HW50-05	Same	0.74	500	Spline	0.63	0.64
HW70-05	Same	0.76	700	Spline	0.65	0.66
HW50-06	Same	0.72	500	Flange	0.61	0.66
HW80Q	Same	0.61	800	Flange	0.61	0.61

Related Names
Heavy Vehicle Transmission for Sale | Speed Changing Gear | Motor Vehicle Part

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