Datong Gear Co.,Ltd mainly produces commercial vehicle transmission,Engine gear,Construction machinery gear. Transmission produced can match 140hp to 540hp, torque from 480Nm to 2500Nm and apply to whole series of commercial vehicle.…
With years of rich powertrain supply experience, EMAC can quickly understand and respond to customer needs, greatly reducing customer communication costs.
EMAC provides one-stop solutions covers from pre-design to components supply, from installation…
EMAC also gradually builing our global services network, from branch companies to joint ventures, from local sales representatives to local after-sales services partners, we continuously expanding a global network that to provide better communication and services for our customers.
Till 2021, EMAC have branch companies and joint venture in Thailand and Singapore with after-sales service ability in this two countries. And we have sales representatives in Turkey, Spain, France and UK…
From automotive powertrain system to industrial engine power system, from water pump drive package to complete generator set, from marine propulsion system to marine power system, by working closely with global leading companies’ factories in China, EMAC gives high-end solutions with competitive prices.
EMAC is excellent solution provider with a professional and dedicated team, we developed our advanced management system based on our past experience, and EMAC is the innovator of detailed visulization services that have professional video for every single products we sell…
With the mission of “Better Power, Better World”, and the vision of “Help World Leverage the Power of China”, EMAC looking for business partners in each country, that can working both as branch company or joint venture, by leverage the rich resources here, business network and local service advantages in China, we hope can help all manufacturers in the world to improve their design ability, manufacturing capability, management…

Heavy Manual No-Sync Gearbox I Synchronizer-free high-efficiency transmission system
The gearbox is designed as a long-range single-H operated type, featuring a main transmission that is manually controlled and a range that is operated pneumatically. An interlocking mechanism is utilized to effectively protect the synchronizer of the range, ensuring smooth and accurate gear shifts. The main group countershaft is employed for the rear power take-off, enhancing the versatility of the transmission. The lubrication system is a combination of forced lubrication and gear splash lubrication, ensuring that all components are well-lubricated for optimal performance and durability. Furthermore, the gearbox is capable of being equipped with rear power take-offs, offering torque outputs of 500 and 700 Nm, providing additional flexibility and power options for various applications.

Heavy Manual Sync Gearbox I Advanced Synchronized Drive System

Light-Medium Sync Gearbox I Advanced Synchronized Drive System

Light-Medium No-sync Gearbox I Synchronizer-free high-efficiency transmission system

AMT Hybrid Gearbox I Intelligent Automated Manual Transmission System

Parts | A Trustworthy Engine Parts Partner-PartMac
Find Gearbox by Series or Type
Below list is the gearbox classified by gearbox type, you can also find gearbox classified by series in the top menu.
Heavy Manual No-Sync Gearbox
Maximum Input Torque: 1500 N.m Maximum Input Torque : 1900 N.m Maximum Input Torque: 2100 N.m Maximum Input Torque: 2100 N.m Maximum Input Torque: 2300 N.m Maximum Input Torque: 2500 N.m Maximum Input Torque: 2700 N.m
HW15710
Dry Weight: 363 kg
Oil Capacity(PTO): 12 L (12.5 L)
Total Length: 843 mm
HW19710
Dry Weight : 363 kg
Oil Capacity(PTO) : 12 L (12.5 L)
Total Length : 843 mm
HW19712
Dry Weight: 379 kg
Oil Capacity(PTO): 13 L (13.5 L)
Total Length: 915 mm
HW21712XSJ
Dry Weight: 379 kg
Oil Capacity(PTO): 13 L (13.5 L)
Total Length: 915 mm
HW23712XSJ
Dry Weight: 379 kg
Oil Capacity(PTO): 13 L (13.5 L)
Total Length: 915 mm
HW25712XSJ
Dry Weight: 428 kg
Oil Capacity(PTO): 13 L (13.5 L)
Total Length: 993 mm
HW27712XSJ
Dry Weight: 428 kg
Oil Capacity(PTO): 13 L (13.5 L)
Total Length: 993 mm
Heavy Manual Sync Gearbox
Maximum Input Torque : Direct Drive 1350 Maximum Input Torque: 2100 N.m Maximum Input Torque: 2100 N.m Maximum Input Torque: 2500 N.m Maximum Input Torque: 2500 N.m
HW13709XST
Maximum Input Speed : 2400 RPM
Dry Weight : 327 kg
Oil Capacity : 9.5 L
Total Length : 859 mm
HW21712XSTL
Dry Weight: 320 kg
Oil Capacity(PTO): 13 L (13.5 L)
Total Length: 993 mm
HW23712XSTL
Dry Weight: 320 kg
Oil Capacity(PTO): 14 L
Total Length: 993 mm
HW25712XSTL
Dry Weight: 325 kg
Oil Capacity(PTO): 11 L(11.5 L)
Total Length: 993 mm
HW27712XSTL
Dry Weight: 428 kg
Oil Capacity(PTO): 13 L (13.5 L)
Total Length: 993 mm
Light-Medium Sync Gearbox
Maximum Input Torque: 950 N.m Maximum Input Torque : 1200 N.m
HW95508STC
Maximum Input Speed : 2600 RPM
Dry Weight : 196 kg
Oil Capacity : 6 L
HW11708STC
Maximum Input Speed : 2600 RPM
Dry Weight : 191 kg
Oil Capacity : 6 L
HW13709XST
Light-Medium No-sync Gearbox
AMT Hybrid Gearbox
Maximum Input Torque: 250 – 500 N.m Maximum Input Torque : 950 N.m Maximum Input Torque : 1200 N.m Maximum Input Torque: 250 – 500 N.m
SR
Maximum Input Speed: 6000 RPM
Dry Weight: 80 – 160 kg
Speed Ratio Range: 3.6 – 7.8
HW95508A
HW95510A
Maximum Input Speed : 3200 RPM
Dry Weight : 148 kg
Oil Capacity : 6 L
HW11710A
Maximum Input Speed : 2600 RPM
Dry Weight : 152.5 kg
Oil Capacity : 6 L
HW25716XAL
Maximum Input Speed: 6000 RPM
Dry Weight: 50 – 160 kg
Total Length: 389.5 * 591.8 * 431.3 mm
Customer Review
Thailand | Pump – Equipment Production
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC. A Promise is A Promise, EMAC always do what we say, and for customer’s feedback, also 100% original from clients’s real words. EMAC, a Chinese company that you can trust!
Vietnam | Pump – Electric Motor
EMAC's customer interview video of 2024, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC. A Promise is A Promise, EMAC always do what we say, and for customer’s feedback, also 100% original from clients’s real words. EMAC, a Chinese company that you can trust!
Malaysia | Construction – Ground Support Equipment
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC. A Promise is A Promise, EMAC always do what we say, and for customer’s feedback, also 100% original from clients’s real words. EMAC, a Chinese company that you can trust!
Indonesia | Construction – Customer Interview
EMAC's customer interview video of 2025, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC. A Promise is A Promise, EMAC always do what we say, and for customer’s feedback, also 100% original from clients’s real words. EMAC, a Chinese company that you can trust!
Malaysia | Marine – Feedback from Safari Boat Operators
We were satisfied with EMAC, and happy to having them as our supplier, our boat has been operated for more than 5 years now, both propulsion system and power system from EMAC are working perfectly. We do happy with the good quality of products from EMAC, the stability...
Asean | Marine – Asean Company’s Feedback
We are a marine equipments packager company in Asean, estbalished in 2007. We packaged marine generator sets, marine propulsion system, side thruster, CPP propeller system, azimuth thruster, fuel and oil purifiers , engine electronic control system etc...
USA | Construction – A USA Company’s Feedback
EMAC company till now, and EMAC provides us a very good support, no matter pre-sales support or after-sales support. They have deep network of power system manufacturers in China, and ensuring them the strong ability of giving multiple brands options, we are happy to be partner of EMAC, that able to provide us one-stop power system solution from China, and they always can give us best value for money solution based on our requirement...
Thailand | Pump – Thailand Engineering Company Interview
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview
Indonesia | Marine – Indonesia Shipyard Interview
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC.
-
Focus on marine industry event, start a new chapter of marine development together–SinoGen Power Technology Limited to exhibit at Marine & Offshore Vietnam 2025
Against the backdrop of the booming development of the global shipping and maritime industry, Vietnam International Maritime Expo 2025 (Marine & Offshore Vietnam) will be held in Ho Chi Minh City, Vietnam from 19th to 21st November. As one of the most influential maritime events in Southeast Asia, this exhibition brings together top enterprises and innovations in the fields of global shipbuilding, offshore engineering, port equipment, new energy ship technology, etc., and provides an internat...
-
SinoGen Power Technology Limited made its debut at the 2025 Indonesia International Construction Machinery, Mining and Concrete Exhibition
The International Exhibition of Engineering Machinery, Mining, and Concrete (Mining Indonesia) will be held in Jakarta, Indonesia, from September 17 to 20, 2025. As one of the most influential mining exhibitions in Southeast Asia, Mining Indonesia provides a professional platform for enterprises, experts, and practitioners in the global mining sector to showcase cutting-edge technologies, exchange industry insights, and explore collaborative opportunities.
-
2025 Russian International Railway and Rail Transit Exhibition: SinoGen invites you to join the industry feast
From August 28 to 31, 2025, the highly anticipated biennial Russian International Railway and Rail Transit Exhibition (PRO/Motion Expo) will be held in St. Petersburg. The exhibition is the largest and most professional railway and transportation exhibition in Eastern Europe and Central Asia. PRO/Motion Expo brings together industry elites, corporate representatives and professional visitors from all over the world to witness the latest development achievements and cutting-edge trends in the ...
-
Thailand | Pump – Equipment Production
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly h...
-
Vietnam | Pump – Electric Motor
EMAC's customer interview video of 2024, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly h...
-
Malaysia | Construction – Ground Support Equipment
EMAC's customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer's company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly h...
Global Activity
Deeply Cultivate the International Market, Empowering the Future of Rail ——Focus [PRO//Motion Expo 2025]: SinoMac Exhibition Highlights Review
From August 28 to 31, 2025, the highly anticipated PRO//Motion Expo 2025 (Russian International Railway and Motion Exhibition) grandly opened at the Russian Railway Museum in St. Petersburg. PRO//Motion Expo is currently the largest railway and transportation exhibition in Russia and the Commonwealth of Independent States (CIS), attracting extensive participation from railway companies from CIS countries and around the world. Over the four-day exhibition, exhibitors showcased cutting-edge technologies and innovative achievements in the railway transportation industry. Through high-level business forums and in-depth industry exchange activities, the event provided an important platform and created key opportunities for promoting the coordinated development of the global rail transportation industry.
Focus on marine industry event, start a new chapter of marine development together–SinoGen Power Technology Limited to exhibit at Marine & Offshore Vietnam 2025
Against the backdrop of the booming development of the global shipping and maritime industry, Vietnam International Maritime Expo 2025 (Marine & Offshore Vietnam) will be held in Ho Chi Minh City, Vietnam from 19th to 21st November. As one of the most influential maritime events in Southeast Asia, this exhibition brings together top enterprises and innovations in the fields of global shipbuilding, offshore engineering, port equipment, new energy ship technology, etc., and provides an international platform for industry colleagues to exchange and co-operate and explore the market.
SinoGen Power Technology Limited made its debut at the 2025 Indonesia International Construction Machinery, Mining and Concrete Exhibition
The International Exhibition of Engineering Machinery, Mining, and Concrete (Mining Indonesia) will be held in Jakarta, Indonesia, from September 17 to 20, 2025. As one of the most influential mining exhibitions in Southeast Asia, Mining Indonesia provides a professional platform for enterprises, experts, and practitioners in the global mining sector to showcase cutting-edge technologies, exchange industry insights, and explore collaborative opportunities.
2025 Russian International Railway and Rail Transit Exhibition: SinoGen invites you to join the industry feast
From August 28 to 31, 2025, the highly anticipated biennial Russian International Railway and Rail Transit Exhibition (PRO/Motion Expo) will be held in St. Petersburg. The exhibition is the largest and most professional railway and transportation exhibition in Eastern Europe and Central Asia. PRO/Motion Expo brings together industry elites, corporate representatives and professional visitors from all over the world to witness the latest development achievements and cutting-edge trends in the railway and rail transit industry. Here, many internationally renowned companies will showcase their latest technologies, products and solutions, covering railway infrastructure construction, train manufacturing, communication and signal systems, intelligent transportation and other fields. From advanced train design and manufacturing technology to efficient railway operation and management solutions; from innovative rail material research and development to intelligent railway communication and control systems, various cutting-edge technologies and innovative achievements will be presented one by one, bringing a wonderful industry feast to the participants.
Sinogen actively participated in the International Railway and Rail Transit Exhibition in Berlin, Germany, to explore the new future of the industry
From September 22 to 25, 2026, the highly anticipated biennial Berlin International Railway and Rail Transit Exhibition (InnoTrans Berlin) opened grandly in Berlin, Germany. As the largest and most influential event in the global railway and rail transit field, InnoTrans Berlin brings together industry elites, corporate representatives and professional visitors from all over the world to witness the latest development achievements and cutting-edge trends in the railway and rail transit industry. The exhibition covers a number of key areas such as bridges and tunnels, public transportation, and comprehensively displays innovative technologies, advanced equipment and comprehensive solutions in the railway and rail transit industry. From infrastructure construction to operation management, from vehicle manufacturing to intelligent system applications, the exhibition content is rich and diverse, providing participants inside and outside the industry with an excellent platform for a comprehensive understanding of industry dynamics, exchanges and cooperation.
SinoGen Company participated in the Saudi International Railway and National Highway Transportation Exhibition to explore new opportunities in the industry
The highly anticipated Middle East Saudi International Railway and National Road Transportation Exhibition (SAUDI RAIL) will be grandly opened in Riyadh, the capital of Saudi Arabia, from October 19 to 20, 2025. As an annual event in the field of rail transportation in the region, this exhibition focuses on Saudi Arabia’s grand blueprint for rebuilding the future new city. With its strong industry influence and extensive market radiation, it has attracted many industry elites and enterprises to participate actively. The market heat continues to rise, showing a booming development trend.