DaTong-Gear SR Heavy Manual No-Sync Gearbox
The DaTong-Gear SR Heavy Manual No-Sync Gearbox has a total length of 843 mm and a weight of 80 kg, with the aluminum casing of the same series gearbox weighing 160 kg. This gearbox is suitable for heavy-duty vehicle engines with a power range between 290 and 360 horsepower. It has a maximum input torque of 6000 N.m (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.)
In the detailed model name, “HW” represents the brand. The number “15” indicates 1% of the torque, with a 1/10 notation used when the torque is less than three digits. The number “7” signifies the series number, denoting a heavy-duty transmission series. “10” represents the number of forward gears, “A” stands for AMT (Automated Manual Transmission), “C” denotes an overdrive gear, and “T” signifies the presence of a synchronizer.
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 SR Series Main Feature
- Main box double intermediate shaft mechanism, auxiliary box planetary mechanism, 5X2 combination.
- Long-distance single H control, optional single lever/double lever control, and gear shift booster can be installed.
- Combination of forced lubrication and gear splash lubrication.
- Many gears, small step difference, easy shifting, and strong fuel saving.
General Specifications of SR Series
| Maximum Input Torque: | 250 – 500 N.m |
| Maximum Input Speed: | 6000 RPM |
| Dry Weight: | 80 – 160 kg |
| Oil Capacity(PTO): | N / A |
| Speed Ratio Range: | 3.6 – 7.8 |
HW95508A
The DaTong-Gear HW95508ACL AMT Hybrid Gearbox has external dimensions of 762.2 mm * 464.4 mm * 550 mm, a weight of 148 kg, and an oil capacity of 6L. This gearbox is suitable for light to medium-duty vehicles with a power range between 220 and 300 horsepower.
DuraMac
DCEC ISL8.9 series automotive engine is four-strokes engine with 102 mm bore and 120 mm stroke, Equipped with Bosch (or BYC or Weifu) pump. engine comes with turbocharger and Air- Air intercooler. The prime power range is from 269 HP to 394 HP.
Fast Gear
The F6A Series Automated Transmission uses the FAST automatic transmission, has six front gears, the transmission ratio step arrangement is reasonable, has very outstanding fuel economy. Adopt hydraulic automatic transmission. The F6A Series Automated Transmission has six gears, each with a different reduction ratio.
EV Truck
Electric wheel dump trucks use electricity as a power source, completely abandoning traditional fuel engines. This change enables the vehicle to achieve true “zero emissions” during operation, without the emission of pollutants such as carbon monoxide, nitrogen oxides, and particulate matter in the exhaust gas, greatly reducing the pollution to the atmospheric environment.
DANA Axle
Applying the advanced technology of DANA with high efficiency, fuel economy, strong load torque, low noise,high reliability, lower procurement cost, low repair cost and lower maintenance cost.
Datong Gear
The Datong HW25712XSJ Heavy Manual No-Sync Gearbox has a torque of 2500 N.m, a gear ratio range of 14.941-1, an oil capacity of 13 L (13.5 L when equipped with a power take-off), an overall length of 993 mm, and a weight of 428 kg.
Crane Trucks
The DFZ5258JSQSZ6D truck crane is a powerful and versatile vehicle designed for efficient lifting and transportation tasks. Equipped with a YCS06300-61 engine and a Shaanxi Auto Fast gear : 10JS120TA high-low gear with synchronizer、PTO gearbox, it provides strong and stable power for demanding operations.
Gearbox Model |
Maximum Input Torque |
Dry Weight |
Engine Model |
Rated Power |
Peak Torque |
||
| SR8AT250F | 250 N.m | 80 kg | SR8AT300F-I | 300 N.m | 83 kg | ||
| SR8AT300F-II | 300 N.m | 86 kg | SR8AT380F | 380 N.m | 87 kg | ||
| SR8AT420F | 500 N.m | 97 kg | SR8AT320R | 320 N.m | 85 kg | ||
| SR8AT500R-I | 500 N.m | 88 kg | SR8AT500R-II | 500 N.m | 105 kg | ||
| SR8HT500R | 500 N.m | 110 kg | SR8HT420F | 420 N.m | 108 kg | ||
| SRDHT500R | 500 N.m | 160 kg | |||||
| ——END—— | |||||||
DaTong-Gear SR Series Heavy Manual No-Sync Gearbox
This is the list of all series of DaTong-Gear SR Series Heavy Manual No-Sync Gearbox.
SR8HT420F
Maximum Input Torque: 420 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 108 kg
Oil Capacity(PTO): N / A
Total Length: 414.4 * 411.4 * 629.5 mm
SR8AT320R
Maximum Input Torque: 320 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 85 kg
Oil Capacity(PTO): N / A
Total Length: 656 * 488 * 453.4 mm
SRDHT500R
Maximum Input Torque: 500 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 160 kg
Oil Capacity(PTO): N / A
Total Length: 738.4 * 453 * 453 mm
SR8HT500R
Maximum Input Torque: 500 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 110 kg
Oil Capacity(PTO): N / A
Total Length: 786.8 * 413.6 * 416.1 mm
SR8AT500R-II
Maximum Input Torque: 500 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 105 kg
Oil Capacity(PTO): N / A
Total Length: 670.9 * 454.1 * 453.6 mm
SR8AT500R-I
Maximum Input Torque: 500 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 88 kg
Oil Capacity(PTO): N / A
Total Length: 672.1 * 407.5 * 414.8 mm
SR8AT420F
Maximum Input Torque: 420 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 97 kg
Oil Capacity(PTO): N / A
Total Length: 368.8 * 622.3 * 418.9 mm
SR8AT380F
Maximum Input Torque: 380 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 87 kg
Oil Capacity(PTO): N / A
Total Length: 372.1 * 607.6 * 407.7 mm
SR8AT300F-II
Maximum Input Torque: 300 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 86 kg
Oil Capacity(PTO): N / A
Total Length: 389.5 * 591.8 * 431.3 mm
SR8AT300F-I
Maximum Input Torque: 300 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 83 kg
Oil Capacity(PTO): N / A
Total Length: 389.5 * 591.8 * 431.3 mm
SR8AT250F
Maximum Input Torque: 250 N.m
Maximum Input Speed: 6000 RPM
Dry Weight: 80 kg
Oil Capacity(PTO): N / A
Total Length: 389.5 * 591.8 * 431.3 mm











