Our History

Founded in 2012, Hebei Demai Transmission Machinery Co., Ltd., located south of Haihe Road and west of Songshan Road in Sangyuan Town, Wuqiao County, Cangzhou City, Hebei Province, is a high-tech enterprise under Haozhe Technology, specializing in linear transmission. It is a provincial-level "Specialized, Refined, and Innovative" SME and a national-level science and technology SME. With a registered capital of 18.03 million yuan and 50 employees, the company has formed a complete business chain integrating R&D, production, sales, technical services, and foreign trade of linear transmission equipment.
The company's core products cover linear transmission mechanisms such as DMT/KFT series screw jacks, high-precision ball screw jacks, non-standard screw jacks, HX series Bevel Gearboxes, Linear Actuators, and Servo Electric Cylinders. These products are widely applicable to diverse scenarios such as industrial automation and precision machining, and customized system solutions can be provided. The company boasts strong technical capabilities, with a professional R&D team. Its independently developed composite transmission technology has reached the advanced level in the industry, accumulating multiple patents. Its products have passed EU CE certification and ISO9001 quality management system, environmental management system, and occupational health and safety management system triple certification.
The company boasts standardized production facilities with an annual production capacity of over 5,500 screw jacks. It has earned market recognition through a comprehensive service system, strictly adhering to a three-guarantee policy and providing 24-hour after-sales response and on-site installation and commissioning services for major equipment. Its products not only cover the domestic market but are also exported to over 30 countries and regions in Europe, America, and Southeast Asia. Serving well-known companies such as BYD and Liancheng Kaikes, the company has established a strong brand image in the transmission machinery industry.



Our Factory
Hebei Demai Transmission Machinery Co., Ltd., located in Cangzhou City, Hebei Province, is a high-tech enterprise specializing in the research, development, production, sales, and foreign trade of linear transmission equipment.
Since its establishment, the company has focused on the research and development and sales of products such as screw jacks and servo electric cylinders. Its main products include DMT and KFT series trapezoidal screw jacks, DMB and KFB series ball screw jacks, DMSL series high-precision bevel gear ball screw jacks, Linear Actuators, Servo Electric Cylinders, and other non-standard transmission equipment. The company's products are characterized by high transmission accuracy, strong load-bearing capacity, low noise, and long service life, and are widely used in new energy vehicles, high-speed rail locomotive assembly and maintenance, aerospace test chambers, aircraft assembly platforms, stage machinery, metallurgy, and many other fields, enjoying a high level of customer trust.
The company has introduced a large number of advanced production and testing equipment, developed new technologies and processes, adopted advanced CAD/CAM/CAE technology, and used CRM+MES+ERP management system to gradually build a complete digital management system that integrates technology research and development, sales management, production planning, quality control, technical support, and after-sales service, ensuring timely delivery of high-quality products.






Our Product
Hebei Demai Transmission specializes in linear transmission, with products covering core categories such as screw jacks, Linear Actuators, Servo Electric Cylinders, and Bevel Gearboxes.
Among these, the screw jacks include the DMT/KFT trapezoidal series, the DMB/KFB ball series, and the DMSL high-precision bevel gear series, adaptable to diverse needs from conventional operating conditions to precision control. The Linear Actuators and Servo Electric Cylinders are characterized by low noise, stability, and precise drive, while the Bevel Gearboxes ensure flexible switching of power direction.
The entire product series combines high transmission precision, strong load-bearing capacity, and long service life, and is widely used in new energy vehicles, photovoltaics, military, high-speed rail, and aviation, while also supporting non-standard customization and system solution output.









Product Application
In the new energy vehicle sector
It provides transmission support for key equipment such as lithium battery production lines, ensuring stable and efficient production.
In the high-speed rail sector
It is adapted to the assembly and maintenance of high-speed rail locomotives, meeting the precision transmission requirements.
In the aerospace sector
It is used in aerospace test and experimental cabins, relying on reliable performance to adapt to harsh operating conditions.
In the aviation sector
It serves aircraft assembly platforms, helping to improve assembly accuracy and efficiency.
In the stage machinery sector
It provides stable transmission for stage lifting and rotating equipment, ensuring smooth performances.
In the metallurgical sector
It is adapted to heavy-duty transmission scenarios in metallurgical production, withstanding complex industrial environments.
Production Equipment
Hebei Demai Transmission Machinery Co., Ltd. is equipped with advanced and complete production equipment, providing a solid hardware guarantee for the precise manufacturing of linear transmission products. The company currently possesses over 60 sets of core production equipment, including vertical machining centers, seven-axis CNC gear hobbing machines, CNC lathes, CNC worm gear grinders, slant guide lathes, and six-axis robots. This equipment covers multiple key production processes, including precision machining and automated operation. It not only meets the processing requirements of high-precision parts but also improves production efficiency and processing consistency through automation, helping the company to consistently output high-quality transmission products such as screw jacks and Linear Actuators.









Production Market

Hebei Demai Transmission Machinery Co., Ltd.'s linear transmission products have a wide market coverage, not only deeply rooted in the domestic market but also successfully exported to more than 30 countries and regions in Europe, America, and Southeast Asia, establishing a good brand image in the domestic and international linear transmission field.
In terms of performance, the company has established in-depth cooperation with many industry leaders and key enterprises based on its excellent product quality and professional technical capabilities:
In the new energy vehicle sector, it provides transmission equipment support for BYD's lithium battery production line, ensuring the stable operation of its core production links;
In the military industry, it serves military projects such as AVIC Science & Technology and AVIC Engineering, relying on a comprehensive quality control system and full traceability capabilities for components to meet the stringent requirements of military products;
In the photovoltaic industry, it cooperates with industry leaders such as Liancheng CNC and Autowell, providing customized transmission solutions for their monocrystalline silicon furnace equipment, solving multiple transmission challenges with excellent technical design capabilities, and becoming a trusted linear transmission partner for customers in various industries.
Our Service
Hebei Demai Transmission Machinery Co., Ltd. specializes in linear transmission technology. With customer needs at its core, it has built a comprehensive professional service system covering pre-sales, sales, and after-sales processes. This system provides all-round technical support from solution design to long-term operation and maintenance, helping customers ensure stable equipment operation and improve production efficiency.
Pre-sales focus on precise adaptation. A senior technical team provides one-on-one free consultations to clarify core requirements such as load and operation. Combined with a rich product matrix, precise selection is achieved, and customized solutions are provided for non-standard needs. Technical and economic feasibility analyses are conducted to reduce procurement and application risks.
During sales, standardized implementation is strengthened. A comprehensive order tracking and multi-layered quality inspection mechanism is established to ensure products meet industry standards. Standard equipment manuals and on-site installation guidance for major projects are provided, along with simultaneous operation training. Assistance is provided in completing trial operation and debugging, and on-site problem identification and rectification to ensure equipment performance meets standards.
After-sales service focuses on long-term support and strictly implements the three guarantees policy; a 24/7 after-sales hotline is established to respond to problems within 24 hours and handle on-site issues nationwide within 72 hours (32 hours for emergencies); customer product files are established to provide regular follow-ups, maintenance advice and lifetime consultation services; and a well-developed supply chain ensures sufficient reserves of commonly used parts and shortens the spare parts supply cycle.

