DaTong-Gear HW25712XSTL Heavy Manual Sync Gearbox

The DaTong-Gear HW25712XSTL Heavy Manual Sync Gearbox features a total length of 993 mm (1078 mm), weighs 325 kg (420 kg), and has an oil capacity of 11 L (11.5 L) for the aluminum casing and 13 L (13.5 L) for the iron casing. This gearbox is designed for heavy-duty vehicle engines with a power range between 440 to 540 horsepower. It can handle a maximum input torque of 2500 N.m and has a highest input speed of 2600 RPM. (The weight does not include the lubricating oil and clutch disengagement mechanism; the length refers to the distance from the clutch’s front flange end face to the output flange end face; the weight in parentheses is for the iron casing; the oil capacity in parentheses is when equipped with a Power Take-Off (PTO); the total length in parentheses is with the retarder installed.)

In the detailed model name, “HW” represents the brand. The number “25” indicates 1% of the torque, with the 1/10 notation used when the torque is less than three digits. The number “7” signifies the series number for the heavy-duty transmission series. “12” denotes the number of forward gears. “X” indicates helical gears, “S” stands for a double intermediate shaft, “T” signifies the presence of a synchronizer, “C” represents an overdrive gear, and “L” denotes an aluminum casing.

As part of EMAC, DuraMac provides a complete power system that integrates DCEC engines, Fast-Eaton clutches, DaTong-Gear transmissions, Dongfeng-DANA axles and Komman air suspensions. With the future trend of automotive electrification, Duramac is also actively developing in the field of electric vehicle power systems.

The company provides customers with full life cycle services, from design to power system supply, installation and commissioning, to after-sales service training and spare parts supply, as well as troubleshooting and overhaul technical support. This full range of services ensures that customer equipment maintains high reliability and long-term operating efficiency during use.

These comprehensive power systems and service capabilities enable Duramac to occupy an important position in the field of construction machinery and provide advanced solutions for future electrification trends.

DaTong-Gear HW25712XSTL Series Main Feature

• The main box adopts a double intermediate shaft structure, a planetary mechanism for the auxiliary box, and a 6X2 combination.
• The standard gear shift booster reduces the shift force by 50%.
• Forced lubrication is combined with splash lubrication.
• A rear power take-off, a single-axis power take-off and a hydraulic retarder can be installed.