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Automation
75 CNC lathes with robots; automated screw system.
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Quality Assurance
ISO 9001, 14001, CE, ATEX, SIL, IP ratings, etc.
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After Sales
18-month warranty; expert technical support.
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Customization
Color, logo, material, and shape options.
Products
Explore Our Valve Actuator Products
JIMAI specializes in providing valve actuator solutions, Our products consist of pneumatic actuators, bevel gearboxe (including declutchable options),
and a variety of actuator Our products consist of pneumatic actuators, bevel gearboxes (including declutchable options), and a variety of actuator accessories. Our long-standing expertise meets the needs of a diverse range of industries, including oil and gas, chemical, power, and building services.
产品中心 Pneumatic Actuator
The JIMAI pneumatic actuator is manufactured under the ISO9001 quality management system and is certified with CE, SIL3, and ATEX certificates. JIMAI pneumatic actuators are engineered for use in quarter-turn valves and have been subjected to a one-million-operation test. The JIMAI pneumatic actuator complies with the ISO5211 standard for effortless valve mounting and the NAMUR standard for the mounting of limit switch boxes and positioners.
Pneumatic Actuator
The JIMAI pneumatic actuator is manufactured under the ISO9001 quality management system and is certified with CE, SIL3, and ATEX certificates. JIMAI pneumatic actuators are engineered for use in quarter-turn valves and have been subjected to a one-million-operation test. The JIMAI pneumatic actuator complies with the ISO5211 standard for effortless valve mounting and the NAMUR standard for the mounting of limit switch boxes and positioners.
Valve Gearbox
The JIMAI valve gearbox is manufactured in compliance with the ISO9001 quality management system and is validated with IP67 and IP68 ratings, demonstrating the valve gearbox's exceptional waterproof performance. JIMAI valve gearboxes are engineered for use with quarter-turn valves and can be equipped with an electrical actuator. The JIMAI valve gearboxes are designed to provide an output torque spanning from 260 NM to 150,000 NM and will continue to develop higher torque models to suit virtually all operational requirements.
Valve Gearbox
The JIMAI valve gearbox is manufactured in compliance with the ISO9001 quality management system and is validated with IP67 and IP68 ratings, demonstrating the valve gearbox's exceptional waterproof performance. JIMAI valve gearboxes are engineered for use with quarter-turn valves and can be equipped with an electrical actuator. The JIMAI valve gearboxes are designed to provide an output torque spanning from 260 NM to 150,000 NM and will continue to develop higher torque models to suit virtually all operational requirements.
Bevel Gearbox
The JIMAI bevel gearbox is engineered for multi-turn rotary valves, including gate valves and glove valves. JIMAI designs bevel gearboxes featuring reduction units and models that can be operated by electric actuators. JIMAI supplies the bevel transmission with an output torque ranging from 350NM to 3500NM to accommodate all operational needs
Bevel Gearbox
The JIMAI bevel gearbox is engineered for multi-turn rotary valves, including gate valves and glove valves. JIMAI designs bevel gearboxes featuring reduction units and models that can be operated by electric actuators. JIMAI supplies the bevel transmission with an output torque ranging from 350NM to 3500NM to accommodate all operational needs
Declutchable Gearbox
The JIMAI declutchable gearbox is a manual device employed between the pneumatic actuator and the valves. The primary function serves as an emergency mechanism to manually operate the opening or closing when the air supply is halted. JIMAI is capable of recommending the appropriate declutchable gearbox size when the actuator size and valve size are specified.
Declutchable Gearbox
The JIMAI declutchable gearbox is a manual device employed between the pneumatic actuator and the valves. The primary function serves as an emergency mechanism to manually operate the opening or closing when the air supply is halted. JIMAI is capable of recommending the appropriate declutchable gearbox size when the actuator size and valve size are specified.
Actuator Accessory
JIMAI supplies actuator accessories such as positioners, limit switch boxes, solenoid valves, air filters, and related components. With the aid of the actuator accessory, it can enhance the user experience and also extend the service life of the pneumatic actuator. JIMAI offers a complete set of accessories for pneumatic actuators and will supply all tested, verified accessories prior to shipment from the factory.
Actuator Accessory
JIMAI supplies actuator accessories such as positioners, limit switch boxes, solenoid valves, air filters, and related components. With the aid of the actuator accessory, it can enhance the user experience and also extend the service life of the pneumatic actuator. JIMAI offers a complete set of accessories for pneumatic actuators and will supply all tested, verified accessories prior to shipment from the factory.
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Company
JIMAI Actuators:
Engineered for Precision Motion

In JlMAl, there are approximately 40 manufacturing centers and 100 CNc lathes. JlMAl wil significantly enhance the overall performance of actuators with a total of approximately 260 pieces of equipment. Additionally, the JlMAl factory is accredited under the lS014001 environmental management system, All JlMAl products are manufactured in accordance with the ls09001 quality system and have been certified with CE, SIL3, and ATEX IP68. JIMAI products have consistently maintained a high level of quality both domestically and internationally, thanks to their strict adherence to the lS09001 international quality assurance system and years of extensive production experience.

Find out more about JIMAI
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Advantages You Shouldn't Miss
Precision Engineering & Efficient Production
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Automatic Equipment
Advanced Automation & In-House Precision
JIMAI remain committed to the continuous development of the quality of products, as the largest manufacturer of pneumatic actuators in Zhejiang province. JIMAI have created machines that are not visible from the outside, used for improving production ability and product performance, such as automatic screw machines and leakage testing machines.
Automatic Equipment
Robotic Integration:
75 CNC machines with robotic arms for efficiency.
Automated Processes:
Automated screw machines ensure precision and consistency.
Full Control:
In-house production of shafts, pistons, and cylinders.
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Production Quality
Rigorous Quality Assurance & Tailored Solutions
We are dedicated to the highest standards of production quality. Through strict quality control protocols, hourly inspections, and professional testing, we ensure each component meets our requirements.
Production Quality
Material Verification:
Materials tested before storage to meet strict standards.
Product Warranty:
18-month warranty guarantees product quality.
Customized Products:
Customizable colors, logos, and designs for clients.
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Honor Certificate
As for the pneumatic actuator, it has certified with CE, SIL3, and ATEX ( explosion proof ) certificates. For valve gearbox, it has special IP67 and IP68 weather proof certificates.
Honor Certificate
News
on JIMAI
To the News
Participated in WZPV Oct.17~19th
2025.10.28
Zhejiang Jimai Auto-tech Co., Ltd. participated in the WZPV exhibition in Wenzhou, China from October 17th to October 19...
The Environment of Application for Pneumatic Ball Valves
2025.10.27
Pneumatic ball valves are essential components of industrial fluid control systems, providing precise flow regulation, d...
What is a gearbox on a valve
What is a gearbox on a valve
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A gearbox on a valve is a mechanical device that is employed to facilitate the operation of manual valves, particularly ...
How to repair valve gearbox
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Valve gearbox repair entails the diagnosis of issues, the disassembly, replacement of damaged components, and the subseq...
How to Improve the Service Life of Pneumatic Actuators
How to Improve the Service Life of Pneumatic Actuators
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Pneumatic actuators are extensively employed in a variety of industries due to their cost-effectiveness, reliability, an...
Applications and Advantages of Pneumatic Actuator in Modern Industries
2025.09.18
Pneumatic actuators represent a vital technology in modern industries, offering distinct advantages that have transforme...
The Benefits of scotch-yoke Type Pneumatic Actuators
The Benefits of scotch-yoke Type Pneumatic Actuators
2025.09.03
Scotch-yoke Type Pneumatic Actuators are extensively employed in a variety of industrial applications as a result of the...
The Benefits of Pneumatic Ball Valves
The Benefits of Pneumatic Ball Valves
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Pneumatic ball valves are indispensable components of contemporary industrial systems, providing numerous advantages ove...
Maintenance and Repair Guide for Pneumatic Actuators
Maintenance and Repair Guide for Pneumatic Actuators
2025.08.18
Valve control and motion applications are among the most prevalent applications of pneumatic actuators in industrial aut...

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JIMAI is a leading innovator in valve actuators, combining R&D, production, and sales expertise. We independently manufacture key components, serving industries like petroleum, chemical, metallurgy...
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