Compact and Efficient WJ(RV) Series Worm Gearbox

Item No.: WJ(RV) series
Maximize your machinery's performance with our WJ(RV) Series Worm Gearbox. Designed for versatility and durability, it's the perfect solution for a wide range of industrial applications.

Optimize Your Operations with the WJ(RV) Series Worm Gearbox

Introducing the WJ(RV) Series Worm Gearbox - your choice for achieving superior efficiency and reliability in demanding industrial environments.


Unmatched Quality and Performance


Durable Construction

Featuring an aluminium alloy or cast iron square housing, our worm gearbox combines a compact design with an elegant appearance, ensuring long-lasting performance.

High Efficiency and Low Noise

Engineered for smooth operation, our gearbox offers an efficient radiator, low noise levels, and high carrying ability, making it suitable for a variety of machinery equipment.

Versatile Application

From chemical to food and beverage industries, the WJ(RV) Series provides a flexible and convenient installation, steady running, and is widely used across multiple sectors.


Technical Specifications

  • Output speed: 1.3~193rpm
  • Output torque: Up to 880Nm
  • Motor power: 0.09~7.5kw
  • Installation Form: Horizontal or Vertical


Product features: 

1.WJ series worm gearbox adopt aluminium alloy or cast iron square housing, small size and elegant appearance. 
2.It is flexible and convenient to install, steady running, efficent radiator, low noise, high carrying ability. 
3.The products have been widely used for machinery equipment , such as chemical, plating, ceramic, leather, pharmaceutical, foods,beverage,etc.



Type and specification: WJ30~WJ150

Fast selection:

Model Shaft Dia.(mm) Center Height
Output Flange Dia. 
Ratio Permitted Torque
Solid(h6) Hollow(h7)
Wj30 14 14 40 80 0.09~0.3 7.5~100 22 1.5
Wj40 19 18/19 50 110 0.12~0.5 7.5~100 55 2.5
Wj50 25 25 60 125 0.18~0.7 7.5~100 120 4
Wj63 25 25 72 180 0.37~1.5 7.5~100 175 6
Wj75 28 28 86 200 0.55~3 7.5~100 280 9
Wj90 35 35 103 210 0.75~4 7.5~100 425 13.5
Wj110 42 42 127.5 270 1.1~5.5 7.5~100 585 43
Wj130 45 45 147.5 320 1.5~7.5 7.5~100 850 67
Wj150 50 50 170 320 2.2~15 7.5~100 1500 100

Remark: the weight is for basic model, without oil and motor


Why Choose Zhejiang Shuanglian Machinery Co(SLM)?

Since our inception in 2000,SLM dedicated ourselves to providing state-of-the-art gear motor solutions to a wide range of industries worldwide, including robotics, automation, manufacturing, and more. From a humble beginning as a small engineering workshop,  SLM has grown into a global powerhouse in gear motor technology. With a keen focus on research and development, we have pioneered many advances in gear motor design and application, helping our clients achieve unmatched precision and efficiency in their operations.Our commitment to quality, reliability, and innovation has established us as a leading name in the gear motor industry.

Our Advantage:

1、Precision Engineering
 At the heart of SLM  lies our unwavering commitment to precision. Our gearmotors are designed for maximum efficiency and reliability, ensuring your operations run smoothly and without interruption.

2、Custom Solutions
We understand that every industry has unique needs. That's why we offer customized gear motor solutions tailored to your specific requirements, guaranteeing optimal performance for your application.

3、Sustainability Focus
 We are dedicated to reducing our environmental footprint through innovative design and manufacturing practices. Our gearmotors are not only powerful but also designed with sustainability in mind, helping you meet your green objectives.

4、Global Reach, Local Support
 With clients in over 50 countries, we pride ourselves on our global reach and local presence. Our worldwide network of support specialists ensures you receive the assistance you need, whenever you need it.




1. Who Are We?
SLM Gear Motors is a leading innovator in precision gear motor technology. Founded in 2000, we specialize in designing, manufacturing, and supplying high-quality gear motors for a wide range of applications across various industries, including automation, robotics, and manufacturing. Our dedication to innovation, quality, and customer satisfaction has made us a trusted partner in the global market.

2. How Can We Guarantee Quality?
Quality is at the core of everything we do at SLM . We guarantee the highest quality of our products through:
Rigorous Testing
Each gear motor undergoes extensive testing and quality control checks to ensure reliability and performance under all conditions.

Advanced Manufacturing
We use state-of-the-art manufacturing technologies and processes, along with high-quality materials, to ensure the durability and longevity of our products.

Continuous Improvement
Our commitment to research and development means we are always improving our products and processes to meet and exceed industry standards.

3. What Can You Buy From Us?
SLM offers a comprehensive range of gear motor solutions, including:
Standard Gear Motors
A wide selection of gear motors suitable for various applications and industries.

Custom Gear Motors
Tailor-made solutions designed to meet specific customer requirements, ensuring optimal performance for any application.

Precision Motion Control Solutions
Advanced solutions for precise control of movement in critical applications.

4. Why Should You Buy From Us and Not From Other Suppliers?
Choosing SLM means choosing a partner committed to your success. Our advantages include:
Customization and Flexibility
Unlike many suppliers, we specialize in providing custom solutions that precisely fit your needs.

Expertise and Innovation
With years of industry experience, our team is at the forefront of gear motor technology, continually pushing the boundaries of what's possible.

Global Support Network
Our global presence ensures you receive the support and service you need, wherever you are in the world.

Sustainability Commitment
We are dedicated to sustainable practices in our design and manufacturing processes, helping you achieve your environmental goals.

5. What Services Can We Provide?
SLM  is proud to offer a wide range of services, including:
Consultation and Design
Expert advice and custom design services to develop the perfect solution for your application.

Manufacturing and Supply
High-quality production and timely delivery of your gear motor solutions, no matter where you are located.

After-Sales Support
Comprehensive after-sales service, including maintenance, repairs, and technical support, ensuring your gear motors continue to operate flawlessly.

Elevate Your Operations with SLM Gearmotors - Experience the power of innovation and quality perfected over 30 years. Discover SLM and transform your machinery today!