I still remember standing in a noisy workshop, trying to explain to the technician why their encoder wasn’t working right.
The spec sheet looked fine. The emails were promising. But the results? Not even close.
That’s when I learned something important finding a supplier in China is easy. Finding a good one is not.
Over the years, I’ve worked with many companies sourcing parts. I’ve visited suppliers in person. I’ve tested samples and seen who actually delivers what they promise.
So if you’re looking for absolute encoder suppliers in China, I get it.
In this guide, you’ll see 9 companies that have proven they can handle real work. You’ll get key details like company size, location, founding year, and direct website links.
By the end, you’ll have a clear path to finding a partner you can trust.
So let’s begin!
1. Radin
I first came across Radin during a project that needed reliable encoders for backup power systems. After a few failed suppliers, Radin stood out. Their support team answered quickly. Their parts fit without issue. It was the first time things just worked and that stuck with me.
Radin was founded in 2008 and is based in Wenzhou, Zhejiang. They have over 100 employees. The company serves clients in Asia, the Middle East, and Europe with steady supply and fast response.
Product Range
- Core Product Categories: They offer absolute encoders, rotary encoders, incremental encoders, and power control devices. These components are used across energy, automation, and industrial systems.
- Specialized Formulations or Innovations: Their encoders are built to operate under extreme temperature and vibration conditions. This makes them reliable in harsh or unstable environments.
- Best-selling Products: Compact rotary encoders are their most popular item. These are commonly used in control panels and engine management systems.
- Unique Selling Points of Their Products: Their products are known for durability, fast lead times, and smooth system integration. This benefits OEMs and panel builders with tight project timelines.
Manufacturing Capabilities
- Production Volume: They operate at a mid-scale level with regular monthly output. This setup supports industrial orders without major delays.
- Customization Options: Both standard and private label options are available. They can adjust specifications to match your system requirements.
- In-house vs. Outsourced Production: Most manufacturing is done in-house under strict supervision. Any sourced materials go through firm quality checks.
- Technology and Automation Used in Production: The factory uses CNC machining, automated testing, and smart packaging lines. These tools improve accuracy and production speed.
Research & Development (R&D)
- In-house R&D vs. Third-party Collaboration: R&D is handled by their internal engineering team. This helps keep product development aligned with customer needs.
- Innovation and Product Development Process: New products are developed using feedback from customers and real-world testing. Field data plays a key role in improvements.
- Testing Procedures for New Products: Encoders are tested for resistance, signal accuracy, and long-term reliability. Each unit must meet set standards before shipping.
- Adaptability to Market Trends and Demands: They respond quickly to changes in the energy, control panel, and smart grid sectors. This flexibility helps them stay competitive.
- Notable Patents or Proprietary Technologies: They hold several patents related to automation components. These include design innovations for stability and control.
Final Verdict
Radin is best for companies that need stable, long-term supply of encoder parts and strong service from a team that understands real-world use. They offer consistent quality and support; however, their catalog may not be as wide as larger global brands.
2. Changchun Yuheng Optics Co., Ltd.
If you’re sourcing encoders that need to hold up under pressure fast-moving machinery, harsh environments, or long shifts then you’ll want to know about Yuheng Optics. I learned about them while working with a client who needed high-precision encoders for medical equipment.
Changchun Yuheng Optics was founded in 2005 and is based in Jilin Province, China. They have over 200 employees and serve clients across Europe, Asia, and North America. With in-house production and a strong engineering team, they’ve earned a solid reputation in motion control and automation.
Product Range
- Core Product Categories: They manufacture absolute encoders, incremental encoders, rotary encoders, and linear displacement sensors. These products are widely used in motion control and positioning systems.
- Specialized Formulations or Innovations: Their hybrid signal output encoders are built for high-speed applications. These models offer both analog and digital feedback for advanced systems.
- Best-Selling Products: Multi-turn absolute encoders with optical and magnetic sensing lead their sales. These models are favored for precision in long-cycle industrial tasks.
- Unique Selling Points of Their Products: Their encoders feature compact designs, clear signal transmission, and simple wiring. This makes them easy to install and reliable in operation.
Manufacturing Capabilities
- Production Volume: The facility is scaled for high-volume output to support global orders. They maintain consistent monthly production to meet international demand.
- Customization Options: Yes, they offer flexible adjustments for connectors, shaft sizes, and signal formats. This supports integration with a range of systems.
- In-House vs. Outsourced Production: Most of the production process is handled in-house. This approach helps keep quality and specifications consistent.
- Technology and Automation Used in Production: Production involves precision assembly, optical calibration, and real-time testing. These tools help catch errors early and maintain performance standards.
Research & Development (R&D)
- In-House R&D vs. Third-Party Collaboration: All R&D work is carried out by their internal engineering team. This allows for direct control over design and testing.
- Innovation and Product Development Process: Their focus is on improving accuracy and extending product life cycles. Projects are often driven by customer input and industry use-cases.
- Testing Procedures for New Products: Each encoder undergoes simulated wear-and-tear tests. These are designed to reflect demanding industrial environments.
- Adaptability to Market Trends and Demands: They regularly update product lines to support smart factory upgrades and automation growth. This keeps them competitive in evolving sectors.
- Notable Patents or Proprietary Technologies: They hold several patents related to multi-signal output technology. These are especially useful in systems requiring both speed and position feedback.
Final Verdict
Yuheng is a great fit if you need precise, durable encoders for technical applications. Their quality is trusted across industries; however, lead times for specialized units can be longer than basic stock models.
3. ROUNDSS (Changchun Rongde Optics Co., Ltd.)
I first noticed Roundss while visiting a food processing plant. The machines moved in sync fast, quiet, accurate. Every motion felt sharp and smooth. I later learned their encoders were behind that rhythm.
Roundss was founded in 2006 in Changchun, Jilin Province. They have over 150 employees and export them to more than 40 countries. Their products support automation systems worldwide. Known for strong in-house R&D and consistent quality, ROUNDSS has become a trusted name in motion control.
Product Range
- Core Product Categories: They produce absolute encoders, incremental encoders, rotary encoders, and linear displacement sensors. These are commonly used in motion systems and automation control.
- Specialized Formulations or Innovations: They offer hybrid signal output encoders suited for high-speed operations. These models support mixed feedback types for greater flexibility.
- Best-Selling Products: Multi-turn absolute encoders with both optical and magnetic sensing are top sellers. These units deliver accuracy across a wide range of industrial uses.
- Unique Selling Points of Their Products: Their encoders feature compact housings, clean signal output, and user-friendly wiring. These qualities support smooth installation and long-term reliability.
Manufacturing Capabilities
- Production Volume: Their facility supports mass production with steady monthly output. Products are shipped globally to meet ongoing industrial demand.
- Customization Options: Yes, they provide flexible designs for connector types, shaft dimensions, and signal outputs. These options help customers meet project-specific needs.
- In-House vs. Outsourced Production: Most production is handled in-house to preserve build quality. This helps them maintain consistency across product lines.
- Technology and Automation Used in Production: They use precision assembly lines, optical calibration systems, and live testing stations. These tools improve product accuracy and speed up final checks.
Research & Development (R&D)
- In-House R&D vs. Third-Party Collaboration: All development work is handled internally. This allows tighter integration between design, testing, and feedback.
- Innovation and Product Development Process: The process focuses on boosting encoder accuracy and lifespan. Customer use-cases often shape early design phases.
- Testing Procedures for New Products: New encoders go through simulated wear-and-tear tests. These procedures verify performance in high-use environments.
- Adaptability to Market Trends and Demands: They regularly upgrade products to support the rise of smart factories and modern automation. This responsiveness keeps their lineup competitive.
- Notable Patents or Proprietary Technologies: They hold multiple encoder-related patents, particularly in multi-signal output models. These designs are key to systems needing high precision and feedback control.
Final Verdict
Roundss is a reliable supplier for businesses that value fast production and consistent product quality. Their catalog is strong and adaptable; however, customization may be limited to certain product lines.
4. Shanghai Hengxiang Optical Electronics Co., Ltd.
If you’re building something that relies on precision like motion control or speed tracking Hengxiang is worth a closer look. I once worked with a machine shop that needed better encoder signals. Switching to Hengxiang made the whole system feel tighter and more responsive.
Founded in 2001, Hengxiang is based in Shanghai with over 100 employees. They ship globally and focus on signal accuracy, compact design, and long-lasting performance in industrial environments.
Product Range
- Core Product Categories: They supply optical rotary encoders, incremental encoders, absolute encoders, and various encoder accessories. These components are commonly used in motion control and feedback systems.
- Specialized Formulations or Innovations: They develop miniature optical encoders suited for space-constrained installations. These are ideal for compact devices and narrow enclosures.
- Best-Selling Products: Their high-resolution rotary encoders are widely used in automation lines and motor control systems. These models offer fine signal detail for precise motion tracking.
- Unique Selling Points of Their Products: Products deliver high signal accuracy, dependable performance, and a compact footprint. This combination supports integration in both basic and advanced systems.
Manufacturing Capabilities
- Production Volume: They operate at a medium-to-large production scale. This capacity supports both low-volume orders and bulk shipments with consistent output.
- Customization Options: Yes, customers can modify cable length, shaft configuration, housing, and output signals. These options are suitable for both OEM and system integrators.
- In-House vs. Outsourced Production: All core components are manufactured in-house. This allows for better control over part quality and system fit.
- Technology and Automation Used in Production: Production includes optical alignment systems and automated testing rigs. These tools help ensure signal precision and stable performance.
Research & Development (R&D)
- In-House R&D vs. Third-Party Collaboration: All development is performed by an in-house team of engineers. This structure speeds up revisions and product updates.
- Innovation and Product Development Process: New product features are based on customer feedback and installation trials. Engineers refine performance based on field results.
- Testing Procedures for New Products: Products go through vibration testing, data accuracy analysis, and manual inspection. These tests check real-world durability and encoder precision.
- Adaptability to Market Trends and Demands: They continue to focus on compact, high-efficiency encoders for the growing automation industry. Product updates align closely with new application needs.
- Notable Patents or Proprietary Technologies: They hold several patents related to compact optical encoder designs. These innovations allow for size reduction without sacrificing resolution.
Final Verdict
Hengxiang is a great pick if you need accurate encoders with a compact build and strong technical control. Their precision work is dependable; however, their product catalog may not offer as much variety if you’re looking to source multiple automation components from one place.
5. Weihai Idencoder Electronic Technology Co., Ltd.
“You really think this tiny encoder will work on that hoist motor?” I asked. I remember standing with a field tech, both of us staring at a compact piece from Idencoder. He just nodded and wired it in. The lift moved smoothly and with precision. That’s when I stopped doubting them.
Weihai Idencoder was founded in 2013. They’re located in Weihai, Shandong Province. The team has grown to over 80 employees. They’ve built a name for themselves by working closely with universities and factories.
Product Range
- Core Product Categories: They offer absolute encoders, incremental encoders, and draw-wire displacement sensors. These are built for motion sensing and distance measurement in industrial applications.
- Specialized Formulations or Innovations: They manufacture slim-body encoders that fit into narrow or limited spaces. This design supports use in compact enclosures or tight control panels.
- Best-Selling Products: Magnetic absolute encoders are their top-selling models. These are widely used in mobile machinery and heavy-duty industrial equipment.
- Unique Selling Points of Their Products: Their encoders are compact, reliable, and priced competitively. This makes them a good fit for cost-conscious projects requiring long-term durability.
Manufacturing Capabilities
- Production Volume: They operate on moderate scale with consistent batch production. This setup is well-suited for mid-size industrial supply chains.
- Customization Options: Yes, customers can choose signal types, housing materials, mounting styles, and connectors. This flexibility supports a variety of technical needs.
- In-House vs. Outsourced Production: Final assembly and product testing are done internally. This keeps quality control close to the manufacturing floor.
- Technology and Automation Used in Production: They use automated soldering, signal testing systems, and endurance simulation rigs. These tools help maintain build integrity and long-term function.
Research & Development (R&D)
- In-House R&D vs. Third-Party Collaboration: Their R&D is led by an internal team and supported by collaborations with local technical colleges. This setup brings practical insights into new designs.
- Innovation and Product Development Process: Product updates are based on direct feedback from installers and operators. Field usage plays a key role in development.
- Testing Procedures for New Products: New models are tested for shock, heat cycles, and simulated loads. These procedures replicate conditions found in heavy-duty and mobile environments.
- Adaptability to Market Trends and Demands: Their main focus is on rugged, compact encoders for outdoor and mobile systems. They adjust quickly to demand shifts in these segments.
- Notable Patents or Proprietary Technologies: They hold several patents for wire-sensor structures and shielding techniques. These features improve lifespan and signal stability in rough conditions.
Final Verdict
Idencoder is a smart option if you want compact encoders that work hard without breaking your budget. Their team is innovative and responsive; however, they may not yet have the global brand recognition of older firms.
6. Gertech (Weihai) Automation Technology Co., Ltd.
If you’ve ever had to replace a faulty encoder in the middle of a shift, you know how much downtime costs. That’s how I first came across Gertech. A technician recommended them when a client needed a quick upgrade. We tried it and the system ran better than expected.
Founded in 2004, Gertech is based in Weihai, China. With over 17 years of experience and a growing global presence, they focus on industrial encoder and sensor solutions.
Product Range
- Core Product Categories: They produce incremental encoders, absolute encoders, draw-wire sensors, and manual pulse generators. These devices are commonly used in motion feedback, control systems, and industrial automation.
- Specialized Formulations or Innovations: Their products support PROFINET, Modbus, and CANopen protocols. This allows smooth integration into modern communication-based control networks.
- Best-Selling Products: Multi-turn absolute encoders and compact draw-wire sensors are their most in-demand items. These models are preferred in applications requiring precision and space efficiency.
- Unique Selling Points of Their Products: The products deliver strong signal quality, multiple interface options, and reliable construction. These features help reduce installation errors and maintenance needs.
Manufacturing Capabilities
- Production Volume: They operate at a medium production scale suitable for both bulk and recurring orders. This makes them a dependable supplier for OEMs and contractors.
- Customization Options: Yes, customers can select signal types, housing designs, and connector formats. These options help adapt products to specific technical setups.
- In-House vs. Outsourced Production: Final assembly and testing are completed in-house. This helps ensure tight control over build standards and calibration.
- Technology and Automation Used in Production: They use CNC machining, signal testing stations, and automated inspection systems. These tools improve efficiency and reduce errors during production.
Research & Development (R&D)
- In-House R&D vs. Third-Party Collaboration: Their in-house engineering team collaborates with academic research groups. This partnership supports practical design improvements backed by testing data.
- Innovation and Product Development Process: Product updates are driven by feedback from actual field use and system trials. This keeps the development cycle grounded in real application needs.
- Testing Procedures for New Products: Each model undergoes load-based endurance and environmental stress tests. These procedures simulate actual operating conditions in industrial settings.
- Adaptability to Market Trends and Demands: They regularly update their product range to match growth in automation and smart technologies. This allows them to meet evolving control system demands.
- Notable Patents or Proprietary Technologies: They hold several design patents related to magnetic encoder innovations. These designs help increase precision while reducing sensor size.
Final Verdict
Gertech is a strong option if you need encoders that balance quality with fast response. Their support team is helpful and knowledgeable; however, detailed documentation in English may require clarification for first-time users.
7. YUEQING YUMO ELECTRIC CO., LTD.
If you’re searching for a supplier that combines affordability with a broad product range, YUMO might be the right choice. I recall assisting a client who needed a variety of automation components quickly. YUMO’s catalog offered everything we required, and their prompt delivery kept the project on schedule.
Established in 2007, YUEQING YUMO ELECTRIC CO., LTD. is based in Yueqing City, Zhejiang Province, China. With over 17 years in the industry, they have developed a reputation for providing a wide array of industrial automation products to clients worldwide.
Product Range
- Core Product Categories: They offer rotary encoders, programmable logic controllers (PLCs), human-machine interfaces (HMIs), photoelectric switches, and proximity switches. These components support a wide range of automation and control applications.
- Specialized Formulations or Innovations: Their encoders are compatible with Modbus, CANopen, and other communication protocols. This enhances system flexibility across various industrial platforms.
- Best-Selling Products: Hollow shaft rotary encoders and multi-turn absolute encoders lead their sales. These are frequently used in motor control and position feedback systems.
- Unique Selling Points of Their Products: Their product line is broad, pricing is competitive, and delivery times are short. This combination appeals to integrators and OEMs with time-sensitive projects.
Manufacturing Capabilities
- Production Volume: They support high-volume output suitable for bulk and recurring industrial orders. This makes them a strong fit for large-scale supply contracts.
- Customization Options: Custom specifications are available across various product types. These include options for housing, communication protocol, and mounting styles.
- In-House vs. Outsourced Production: Core manufacturing processes are completed in-house. This allows them to control quality and maintain steady production flow.
- Technology and Automation Used in Production: They rely on advanced machinery and automated testing systems. These tools boost production speed and accuracy across product lines.
Research & Development (R&D)
- In-House R&D vs. Third-Party Collaboration: A dedicated internal team handles most R&D work. This keeps the development cycle aligned with company standards and project goals.
- Innovation and Product Development Process: New developments are driven by market demand and user feedback. This approach helps them respond quickly to changing application needs.
- Testing Procedures for New Products: Products are tested for temperature tolerance, vibration resistance, and signal reliability. These tests confirm durability in demanding environments.
- Adaptability to Market Trends and Demands: They respond quickly to growth in automation and modern control technologies. Regular updates keep their offerings relevant to shifting requirements.
- Notable Patents or Proprietary Technologies: They hold several patents in encoder design and signal processing techniques. These advancements contribute to better accuracy and smoother integration.
Final Verdict
YUMO offers a vast selection of automation products at competitive prices, making them suitable for businesses seeking variety and affordability. Their extensive catalog is advantageous; however, the breadth of offerings may require careful selection to ensure product quality aligns with specific application needs.
8. Changchun Sanfeng Trading Co., Ltd.
Imagine standing in a busy workshop where machines are cutting, turning, and spinning non-stop. I once visited a textile plant that used Sanfeng encoders. The rhythm of each thread, each movement tight and controlled. I remember thinking, “This setup feels smooth.”
Changchun Sanfeng was founded in 1996 and is based in Jilin Province, China. With more than 150 employees, including 30 engineers, they focus on making industrial encoders for heavy-use environments. Their products ship globally and are known for reliable feedback control.
Product Range
- Core Product Categories: They supply solid shaft encoders, hollow shaft encoders, taper shaft encoders, absolute encoders, and elevator-specific encoders. These are widely used in motion control, elevators, and textile machinery.
- Specialized Formulations or Innovations: They develop custom-fit encoders designed specifically for elevator and textile applications. These models meet the unique mounting and durability needs of these industries.
- Best-Selling Products: Their most popular models include the C50-H-1024ZCU410L1 and PKT1030J-1024-J30F rotary encoders. These units are known for reliability and integration ease.
- Unique Selling Points of Their Products: Their encoders feature strong signal performance, rugged housing, and high precision. These traits support reliable operation even in demanding environments.
Manufacturing Capabilities
- Production Volume: They operate large-scale production lines suited for industrial bulk orders. This capacity supports both domestic and export needs.
- Customization Options: Options are available for shaft styles, output types, housing materials, and cable setups. This flexibility makes them a fit for specialized applications.
- In-House vs. Outsourced Production: All major production processes are handled internally. This allows tighter quality control from assembly to final testing.
- Technology and Automation Used in Production: They use digital testing lines and tools that support vibration-resistant design. These technologies improve both durability and performance.
Research & Development (R&D)
- In-House R&D vs. Third-Party Collaboration: All research and development is performed by their internal engineering team. This supports fast design changes based on product feedback.
- Innovation and Product Development Process: Product improvements are based on real-world testing and feedback from field operators. This helps fine-tune functionality for specific industries.
- Testing Procedures for New Products: New encoders undergo speed tests, thermal stress evaluations, and simulated real-use trials. These procedures help identify and correct weak points early.
- Adaptability to Market Trends and Demands: They frequently add new models tailored for elevators, robotics, and automated factory systems. This approach keeps them aligned with evolving industry demands.
- Notable Patents or Proprietary Technologies: They hold national patents related to encoder housing structure and signal design. These contribute to product reliability and accuracy in dynamic environments.
Final Verdict
Sanfeng is a solid choice if you want encoders that combine accuracy and toughness. Their team is experienced and hands-on; however, their international customer service may require longer response times depending on time zones.
9. Shanghai Lanbao Sensing Technology Co., Ltd.
If you’ve ever watched a smart system detect objects, sort parts, or trigger safety stops without fail, you’ve probably seen Lanbao at work. I visited a bottling line once where their sensors controlled flow, fill, and packaging all in real time. It was fast, smooth, and perfectly timed.
Lanbao started in 1998 and is based in Shanghai’s Fengxian District. With over 700 employees and products sold in 60+ countries, they focus on industrial sensing systems that support automation, logistics, and manufacturing.
Product Range
- Core Product Categories: They offer absolute encoders, proximity sensors, photoelectric sensors, pressure sensors, and ultrasonic sensors. These components are commonly used across factory automation, safety systems, and process control.
- Specialized Formulations or Innovations: Their smart sensors include visual detection and laser-based targeting. These features improve accuracy and reduce response times in complex environments.
- Best-Selling Products: Top-selling items include absolute rotary encoders and fast-response object detection sensors. These are widely used in conveyors, robotics, and inspection systems.
- Unique Selling Points of Their Products: Their sensors deliver high signal precision and broad compatibility with various control systems. This helps reduce integration time and system errors.
Manufacturing Capabilities
- Production Volume: They operate at a large production scale to support both domestic and international orders. This allows them to maintain consistent inventory for distributors and OEMs.
- Customization Options: Yes, custom configurations are available for sensor type, signal output, and housing material. These options help meet specific project and environmental needs.
- In-House vs. Outsourced Production: Most of the core manufacturing and all final testing are completed in-house. This helps them maintain quality standards across product lines.
- Technology and Automation Used in Production: They use cleanroom environments, robotic assembly stations, and intelligent testing systems. These tools improve sensor accuracy and reduce product variability.
Research & Development (R&D)
- In-House R&D vs. Third-Party Collaboration: The R&D process is primarily in-house, with additional support from local university partnerships. This structure combines practical development with academic insight.
- Innovation and Product Development Process: They respond to real-time feedback from integrators and end-users. This input helps shape feature updates and new product rollouts.
- Testing Procedures for New Products: Each product undergoes vibration endurance, precision calibration, and real-use simulation. These steps help confirm performance under working conditions.
- Adaptability to Market Trends and Demands: They actively update products to match growth in smart manufacturing, robotics, and Industry 4.0. This keeps their lineup current with automation demands.
- Notable Patents or Proprietary Technologies: They hold dozens of patents related to industrial sensor design and digital feedback systems. These innovations support performance in high-speed, high-precision environments.
Final Verdict
Lanbao stands out for its strong focus on smart sensor accuracy and real-time control. Their product performance is excellent; however, users may need extra support during initial setup due to technical integration steps.
Conclusion
You’ve seen the differences. You know what each company brings to the table.
Whether you care about fast delivery, signal precision, or support that actually shows up you’ve got real options now.
I’ve worked with buyers who felt stuck. This kind of guide helped them move forward with confidence.
So don’t overthink it. Take that next step.
