Introduction to QDY-CS1 Harmonic Reducer
The QDY-CS1 series flexure features a cup-shaped standard cylindrical structure. The input shaft directly mates with the inner bore of the wave generator, connected via a key or screw. It is generally used with the rigid wheel end fixed and the flexure end outputting.
QDY-CS1 Harmonic Reducer Performance Parameter Table
Model/Project | Reduction ratio | Rated torque at 2000 rpm input | Maximum allowable torque during start-up and shutdown | Maximum allowable torque under average load | Instantaneous allowable maximum torque | Maximum permissible input speed (for grease) | Permissible average input speed (grease) | Back gap | Design life |
NM | NM | NM | NM | RPM | RPM | Arc Sec | Hours | ||
14 | 50 | 5.4 | 18 | 6.9 | 35 | 7500 | 3500 | ≤30 | >10000 |
80 | 7.8 | 23 | 11 | 47 | ≤30 | >10000 | |||
100 | 7.8 | 28 | 11 | 54 | ≤30 | >10000 | |||
17 | 50 | 16 | 34 | 26 | 70 | 7000 | 3500 | ≤30 | >10000 |
80 | 22 | 43 | 27 | 87 | ≤30 | >10000 | |||
100 | 24 | 54 | 39 | 110 | ≤30 | >10000 | |||
20 | 50 | 25 | 56 | 34 | 98 | 6000 | 3500 | ≤30 | >10000 |
80 | 34 | 74 | 47 | 127 | ≤30 | >10000 | |||
100 | 40 | 82 | 49 | 147 | ≤30 | >10000 | |||
120 | 40 | 87 | 49 | 147 | ≤30 | >10000 | |||
25 | 50 | 39 | 98 | 55 | 186 | 5500 | 3500 | ≤30 | >10000 |
80 | 63 | 137 | 87 | 355 | ≤30 | >10000 | |||
100 | 67 | 157 | 108 | 284 | ≤30 | >10000 | |||
120 | 67 | 167 | 108 | 304 | ≤30 | >10000 | |||
32 | 50 | 76 | 216 | 108 | 382 | 5000 | 3500 | ≤30 | >10000 |
80 | 118 | 304 | 167 | 568 | ≤30 | >10000 | |||
100 | 137 | 333 | 216 | 647 | ≤30 | >10000 | |||
120 | 137 | 353 | 216 | 686 | ≤30 | >10000 |
Product Introduction:
Harmonic Gear Reducers consist of a fixed internal gear, a flexible gear, and a wave generator that causes radial deformation of the flexible gear. Harmonic Gear Reducers are a new type of transmission structure among gear reducers. They utilize the controllable elastic deformation wave generated by the flexible gear to cause relative tooth misalignment between the teeth of the rigid and flexible gears, thereby transmitting power and motion. This transmission method differs fundamentally from ordinary gear transmission, possessing unique characteristics in meshing theory, set calculations, and structural design. Harmonic gear reducers offer advantages such as high precision and high load-bearing capacity. Compared to ordinary reducers, they use 50% less material, reducing their volume and weight by at least one-third.
Core Features:
Small and lightweight; High transmission precision; Large transmission ratio; Simple and compact structure, easy installation; High load-bearing capacity, capable of transmitting motion to confined spaces; High transmission efficiency, smooth operation.
Product Characteristics:
High dynamic precision and accurate control: Multi-tooth meshing achieves error averaging, resulting in small transmission errors and enabling zero or low backlash meshing. Reverse transmission has no idle stroke, providing outstanding positioning accuracy.
Wide transmission ratio range and strong adaptability: Single-stage transmission ratios can reach 30~320, and double-stage transmission ratios can reach thousands, meeting different speed requirements without complex transmission chains.
High load-bearing capacity and high reliability: The tooth surfaces are in surface contact, resulting in uniform force distribution. The flexible wheel is made of high-strength materials, ensuring high load-bearing capacity.
Compact structure and lightweight design: Composed of only three core components—a rigid wheel, a flexible wheel, and a wave generator—it is small in size and light in weight, facilitating installation in confined spaces.
Smooth transmission and high efficiency: Gradual entry and exit meshing of the gear teeth eliminates impact, resulting in low operating noise and vibration.
Unique functional characteristics and wide applicability: Coaxial design of input and output shafts facilitates easy installation and provides strong transmission stability.
Application Examples
Six-axis/multi-axis industrial robots, CNC rotary tables, laser cutting
At Qiandeyi Transmission Technology (Suzhou) Co., Ltd., we specialize in the research, development, manufacturing, and service of Precision Transmission Components for intelligent and automated equipment. Since our establishment in 2013, we have focused on providing reliable drive solutions for customers in industrial robotics, CNC equipment, automated production lines, logistics systems, new energy equipment, and other advanced manufacturing industries.
Our QDY-CS1 Harmonic Gear Reducers are designed for applications requiring high precision transmission, low backlash, compact structure, high torque density, and stable operation. By combining advanced harmonic drive technology with strict manufacturing processes, we provide precision transmission products that help automation equipment achieve accurate movement and reliable performance.
Modern manufacturing is becoming faster and more intelligent. Robots, automated machines, and precision production systems require transmission components that can maintain accuracy during repeated movement, high-speed operation, and long working cycles. The performance of the reducer directly affects positioning accuracy, production efficiency, and equipment reliability.
The QDY-CS1 Harmonic Gear Reducers use a precision harmonic transmission structure consisting of a wave generator, flex spline, and circular spline. Through controlled elastic deformation and precise tooth engagement, the product achieves high reduction ratio, excellent positioning accuracy, and smooth torque transmission within a compact housing.
We provide both standard and customized QDY-CS1 Harmonic Gear Reducers according to different application requirements. Our engineering team evaluates important parameters including reduction ratio, rated torque, installation dimensions, backlash requirements, operating conditions, and precision levels to provide suitable transmission solutions.
The QDY-CS1 Harmonic Gear Reducers are precision transmission components developed for intelligent automation systems. They are designed to meet the increasing demand for accurate movement control in industries such as robotics, semiconductor manufacturing, CNC machining, and smart production lines.
Unlike traditional gear reducers that rely on rigid gear transmission, harmonic gear reducers use flexible deformation technology. This design allows multiple teeth to engage simultaneously, improving transmission accuracy and reducing mechanical errors.
The QDY-CS1 series consists of three major components:
Wave Generator: Creates controlled deformation of the flex spline and transfers input movement.
Flex Spline: A flexible component that achieves accurate motion transmission through elastic deformation.
Circular Spline: A rigid gear component that works with the flex spline to complete speed reduction.
Through the cooperation of these components, QDY-CS1 Harmonic Gear Reducers achieve high precision transmission, low backlash performance, stable torque output, and long service life.
For industrial robots, collaborative robots, precision machines, and automated equipment, transmission accuracy is one of the most important factors affecting final equipment performance. A reliable harmonic gear reducer helps machines operate more smoothly and maintain consistent production quality.
High Precision Transmission: The harmonic drive structure provides accurate motion control and supports precision positioning applications.
Low Backlash: Optimized design reduces transmission clearance and improves repeat positioning accuracy.
High Reduction Ratio: The compact structure allows large speed reduction within a limited installation space.
High Torque Density: Multiple tooth engagement improves load distribution and provides stable output performance.
Compact Design: Small size and lightweight structure make it suitable for robotic joints and precision automation systems.
Reliable Operation: Strict manufacturing control and testing procedures ensure stable performance under continuous working conditions.
Feature | QDY-CS1 Harmonic Gear Reducers | Application Benefit |
Transmission Structure | Wave generator, flex spline, and circular spline harmonic drive design | Provides precise motion conversion |
Backlash Performance | Low backlash precision transmission structure | Improves positioning repeatability |
Size Design | Compact structure with high reduction capability | Saves installation space |
Torque Output | Multi-tooth engagement transmission | Supports stable operation under load |
Application Fields | Robotics, CNC, automation, semiconductor equipment | Supports intelligent manufacturing systems |
Source: Technical characteristics are based on harmonic transmission principles and Qiandeyi Transmission Technology product development experience.
The working principle of QDY-CS1 Harmonic Gear Reducers is based on harmonic transmission technology. The system uses controlled elastic deformation to achieve accurate speed reduction and power transmission.
When the input shaft drives the wave generator, the wave generator changes the shape of the flex spline. This creates continuous engagement between the flex spline and circular spline, generating the required reduction effect.
Because the flex spline and circular spline have different numbers of teeth, the reducer can achieve a high reduction ratio while maintaining a compact structure.
This unique transmission method provides advantages such as low backlash, high positioning accuracy, smooth movement, and stable torque transmission.
The unique transmission structure of QDY-CS1 Harmonic Gear Reducers allows several gear teeth to engage simultaneously during operation. Compared with many traditional transmission methods, this design improves contact performance and distributes the transmitted force more evenly.
This multi-tooth engagement structure allows the reducer to achieve higher torque capacity while maintaining a compact size. It is especially suitable for applications where equipment space is limited but high motion accuracy is required.
The precise cooperation between the wave generator, flex spline, and circular spline reduces transmission errors and improves the overall stability of the motion control system.
Core Component | Main Function | Performance Advantage |
Wave Generator | Controls flex spline deformation and transfers input movement | Enables accurate speed reduction |
Flex Spline | Provides flexible transmission through elastic deformation | Improves transmission precision |
Circular Spline | Provides rigid tooth engagement support | Enhances load stability |
Source: Structural information is based on harmonic gear transmission principles.
At Qiandeyi Transmission Technology, we understand that a precision reducer is not only a mechanical transmission part but also a key component that affects the performance of an entire automation system.
For this reason, we focus on every manufacturing detail, including component processing accuracy, assembly control, performance testing, and product reliability. The QDY-CS1 Harmonic Gear Reducers are developed to meet the requirements of high precision motion control applications.
Precision movement is essential for industrial robots, CNC equipment, and automated systems. Even a small transmission error may influence product quality and machine efficiency.
The QDY-CS1 Harmonic Gear Reducers provide accurate movement control through optimized harmonic transmission structure and precision component matching. This helps machines achieve stable positioning and repeatable operation.
Backlash is an important factor in precision motion systems. Excessive mechanical clearance may cause positioning errors and reduce response performance.
The QDY-CS1 Harmonic Gear Reducers use precision manufacturing technology to reduce transmission clearance and support applications requiring repeated high accuracy movement.
Modern automation equipment requires stronger performance in smaller installation spaces. A reducer with high torque density can provide greater output capability without increasing machine size.
Through multiple tooth engagement and optimized internal design, QDY-CS1 Harmonic Gear Reducers provide stable torque transmission and reliable operation under different load conditions.
Space saving is an important requirement for robotic systems and precision automation equipment. The compact design of harmonic gear reducers allows engineers to create smaller and more flexible machines.
The QDY-CS1 series provides high reduction performance within a compact housing, making it suitable for robotic joints, mechanical arms, and precision motion platforms.
Many industrial machines operate continuously for long periods. Stable transmission performance helps reduce maintenance requirements and improves production efficiency.
The QDY-CS1 Harmonic Gear Reducers are manufactured under strict quality control procedures and tested for accuracy, backlash, vibration, noise, torque performance, and reliability before shipment.
Performance Factor | QDY-CS1 Harmonic Gear Reducers Feature | Industrial Application Value |
Transmission Accuracy | Precision Harmonic Drive structure | Improves equipment positioning performance |
Backlash Control | Low clearance design | Supports repeated precision movement |
Torque Capability | Multi-tooth engagement transmission | Provides stable output force |
Running Stability | Precision machining and strict inspection | Reduces vibration and improves reliability |
Installation Flexibility | Compact structure | Allows efficient equipment design |
Source: Performance comparison is based on harmonic reducer design characteristics and industrial automation requirements.
The development of intelligent manufacturing has increased the demand for high precision transmission components. Automation equipment requires reducers that can maintain accurate movement, stable output, and reliable operation during long production cycles.
The QDY-CS1 Harmonic Gear Reducers are widely used in industries requiring precise motion control, including industrial robotics, collaborative robots, CNC equipment, semiconductor systems, new energy equipment, and automated production lines.
Industrial robots perform repeated movements such as welding, assembly, handling, and processing. Robot joints require transmission components with high accuracy, stable torque output, and reliable operation.
The QDY-CS1 Harmonic Gear Reducers provide precise joint movement control and help robotic systems achieve smoother operation and better repeatability.
Collaborative robots require lightweight and compact transmission solutions because they need flexible movement and accurate control.
With compact structure and low backlash performance, QDY-CS1 Harmonic Gear Reducers are suitable for robotic joints and intelligent automation equipment.
CNC machine tools require extremely accurate positioning and stable movement control to maintain machining quality. The transmission system directly influences rotation accuracy, processing consistency, and equipment reliability.
The QDY-CS1 Harmonic Gear Reducers can be applied in rotary tables, precision positioning systems, and automated machining equipment. Their low backlash performance helps improve machining accuracy and maintain stable operation during continuous processing.
Semiconductor production requires extremely precise mechanical movement because even small positioning errors may influence manufacturing results. Equipment used for wafer handling, inspection, and assembly needs highly reliable transmission components.
The QDY-CS1 Harmonic Gear Reducers provide accurate motion control and smooth operation for semiconductor automation systems, supporting high precision manufacturing environments.
The development of electric vehicles and renewable energy industries has increased the demand for automated production equipment. Battery manufacturing lines, testing equipment, and assembly systems require transmission components with stable performance.
With high precision transmission and compact structure, QDY-CS1 Harmonic Gear Reducers help new energy equipment achieve accurate movement and reliable long-term operation.
Modern factories use automated production lines to improve efficiency, reduce labor requirements, and maintain consistent product quality. These systems often require repeated movement and precise positioning.
The QDY-CS1 series supports automated assembly equipment, inspection machines, material handling systems, and intelligent manufacturing solutions with reliable motion transmission.
Application Field | Typical Equipment | QDY-CS1 Application Value |
Industrial Robotics | Robot arms, welding robots, assembly robots | Provides accurate joint movement and stable torque output |
Collaborative Robots | Lightweight robotic joints | Supports flexible and precise motion control |
CNC Equipment | Rotary tables and machining systems | Improves positioning accuracy and processing stability |
Semiconductor Equipment | Wafer handling and inspection systems | Provides smooth and accurate movement |
New Energy Equipment | Battery production and testing machines | Supports continuous automated operation |
Source: Application information is based on Qiandeyi Transmission Technology product experience and industrial automation requirements.
The performance of a harmonic gear reducer depends on many factors, including material quality, machining accuracy, assembly technology, lubrication conditions, and inspection procedures.
At Qiandeyi Transmission Technology, we control every important production step to ensure that QDY-CS1 Harmonic Gear Reducers maintain stable performance under real industrial working conditions.
For precision transmission products, small differences in component size or assembly adjustment can influence backlash, efficiency, noise, and service life. Therefore, we focus on detailed process control from the beginning of manufacturing.
Reliable materials are the foundation of high quality transmission components. Before production, we inspect raw materials to confirm their suitability for precision processing and long-term operation.
Proper material selection improves component strength, wear resistance, and operating stability, helping QDY-CS1 Harmonic Gear Reducers achieve reliable service performance.
The wave generator, flex spline, and circular spline are the key components of QDY-CS1 Harmonic Gear Reducers. Their processing accuracy directly affects transmission performance.
We use professional production equipment and controlled manufacturing processes to ensure accurate dimensions and consistent quality of each precision component.
During assembly, our technicians carefully control component matching, internal clearance, lubrication conditions, and installation accuracy.
Proper assembly adjustment helps QDY-CS1 Harmonic Gear Reducers achieve smooth transmission, low backlash, and stable torque output.
Before delivery, every QDY-CS1 Harmonic Gear Reducers is tested to verify performance and reliability. These tests help ensure that the product meets customer requirements for precision automation applications.
Transmission accuracy testing
Backlash measurement
Torque performance inspection
Operating noise testing
Vibration evaluation
Load capability verification
Reliability testing
Inspection Item | Testing Purpose | Quality Benefit |
Transmission Accuracy | Verify motion precision | Ensures accurate equipment movement |
Backlash Test | Measure mechanical clearance | Improves positioning repeatability |
Torque Test | Check output capability | Supports stable load operation |
Noise and Vibration Test | Evaluate running stability | Provides smoother operation |
Source: Quality inspection information is based on Qiandeyi Transmission Technology manufacturing and testing procedures.
For industrial customers, product quality and delivery reliability are both important factors when selecting a precision transmission supplier. At Qiandeyi Transmission Technology, we provide complete support from technical communication, product selection, manufacturing, inspection, and shipment preparation.
The standard production cycle of QDY-CS1 Harmonic Gear Reducers is generally 15–30 days. Customized products usually require 30–45 days depending on reduction ratio, rated torque, installation dimensions, backlash requirements, accuracy level, operating environment, and order quantity.
Before production begins, our engineering team communicates with customers to confirm technical requirements. This includes equipment application, motor parameters, installation method, working conditions, and expected performance.
During manufacturing, we follow strict production procedures to control component processing, assembly accuracy, and final performance. Before shipment, every QDY-CS1 Harmonic Gear Reducers completes professional inspection to ensure stable operation.
Service Process | Standard Information | Customer Benefit |
Technical Confirmation | Application requirements, specifications, and installation conditions review | Ensures correct product selection |
Standard Production | 15–30 days | Meets regular project delivery requirements |
Customized Production | 30–45 days | Supports special industrial applications |
Final Inspection | Accuracy, backlash, torque, vibration, noise, and reliability testing | Ensures stable product performance |
Source: Production and service information is based on Qiandeyi Transmission Technology manufacturing standards.
We provide flexible payment methods according to different customer requirements. The standard payment method for QDY-CS1 Harmonic Gear Reducers is T/T bank transfer.
For large-volume projects, long-term cooperation programs, or customized automation equipment orders, L/C payment terms can be discussed according to customer requirements.
During cooperation, we maintain clear communication regarding product specifications, production progress, inspection results, and delivery schedules to ensure efficient project execution.
Different customers have different transportation requirements. Some projects focus on fast delivery, while others require economical transportation for larger quantities.
We select suitable transportation methods based on destination, order quantity, and delivery requirements.
International Express: Suitable for samples, small orders, and urgent delivery requirements.
Air Freight: Suitable for customers requiring shorter transportation time.
Sea Freight: Suitable for large quantity orders requiring economical transportation.
Railway Transportation: Suitable for specific international routes requiring stable delivery.
The QDY-CS1 Harmonic Gear Reducers contain precision mechanical components, so proper packaging is important to protect product accuracy during transportation.
Each product is packed with shockproof foam, moisture-proof sealed bags, and independent cartons. These packaging methods help prevent damage caused by vibration, impact, dust, and moisture.
For bulk orders, export wooden cases or pallet fixing packaging are used to provide stronger protection during long-distance international transportation.
Choosing a harmonic gear reducer supplier requires more than comparing product prices. For automation equipment manufacturers, stable quality, technical capability, manufacturing experience, and delivery reliability are important factors for long-term cooperation.
Qiandeyi Transmission Technology (Suzhou) Co., Ltd. was established on July 31, 2013, and is located in Huaqiao Town, Kunshan City, Jiangsu Province, China.
We are a national high-tech enterprise integrating research and development, manufacturing, sales, and service. We specialize in designing and manufacturing core components for intelligent and automated equipment.
Our company provides one-stop intelligent drive solutions, including Precision Planetary Gearboxes, harmonic gear reducers, Hollow Rotary Platforms, RV gearboxes, Commutators, splitters, Joint modules, and Worm Gear Reducers.
Our products are widely used in industrial robots, CNC machine tools, automated production lines, logistics equipment, new energy systems, and intelligent manufacturing fields. Customers are located in more than 30 countries and regions.
Precision transmission products require deep manufacturing experience because every component affects final performance.
Our core production team has more than 20 years of industry experience. We understand the importance of machining accuracy, component matching, assembly control, and performance testing.
Through continuous improvement in manufacturing technology, we provide reliable QDY-CS1 Harmonic Gear Reducers for different industrial applications.
Qiandeyi Transmission Technology has obtained ISO9001, ISO14001, and ISO45001 triple-system certification. These management systems support continuous improvement in product quality, environmental management, and production safety.
From raw material inspection to finished product shipment, we implement full-process quality control. Every QDY-CS1 Harmonic Gear Reducers must pass professional testing before delivery.
Different automation systems have different requirements for transmission components. A reducer used in a robotic joint may focus on precision and response speed, while a reducer used in industrial equipment may require stronger load capability and continuous operation stability.
At Qiandeyi Transmission Technology, we provide customized QDY-CS1 Harmonic Gear Reducers according to customer equipment requirements. Our engineering team analyzes application conditions and provides suitable transmission solutions.
During the product selection process, we consider important parameters including:
Reduction ratio requirements
Rated torque requirements
Motor matching conditions
Installation dimensions
Backlash requirements
Positioning accuracy requirements
Operating environment
Working cycle requirements
Through professional technical communication and manufacturing experience, we help customers select suitable harmonic gear reducer solutions for robots, automation equipment, and precision machinery.
Qiandeyi Capability | Customer Value |
Precision transmission product development | Reliable motion control solutions |
Experienced engineering team | Professional technical support |
Advanced manufacturing equipment | Stable product consistency |
Complete testing system | Reliable product performance verification |
Customized design capability | Solutions for different industrial applications |
Source: Company capability information is based on Qiandeyi Transmission Technology manufacturing experience and service system.
QDY-CS1 Harmonic Gear Reducers are precision transmission components designed for intelligent automation equipment requiring high accuracy, low backlash, compact structure, and stable motion control.
The product uses harmonic drive technology, including a wave generator, flex spline, and circular spline. Through controlled elastic deformation, the reducer achieves high reduction ratio and precise power transmission.
Compared with traditional transmission solutions, harmonic gear reducers provide advantages in accuracy, compactness, and motion response, making them suitable for advanced automation applications.
The main advantages of QDY-CS1 Harmonic Gear Reducers include:
High precision transmission
Low backlash performance
High reduction ratio
High torque density
Compact structure
Smooth operation
Long service life
These characteristics allow QDY-CS1 Harmonic Gear Reducers to meet the requirements of robotic joints, CNC systems, semiconductor equipment, and intelligent manufacturing applications.
Selecting the correct harmonic gear reducer depends on several application factors, including required reduction ratio, output torque, motor specification, installation space, accuracy requirements, and operating conditions.
For robotic applications, customers usually focus on low backlash, compact structure, and high positioning accuracy. For automated production equipment, stable operation and load capacity are also important considerations.
Our technical team can provide product selection recommendations according to actual application requirements.
Yes. We provide customized harmonic gear reducer solutions according to different customer requirements.
Customization can include reduction ratio, rated torque, installation structure, output design, backlash level, precision requirements, and special operating conditions.
Our engineering team works closely with customers to ensure that the selected transmission solution matches the actual equipment requirements.
QDY-CS1 Harmonic Gear Reducers are widely used in industries requiring precise motion control and reliable transmission performance, including:
Industrial robots
Collaborative robots
Robot arms
CNC machine tools
Semiconductor manufacturing equipment
New energy production equipment
Automated assembly lines
Precision inspection systems
Intelligent manufacturing systems
The standard production cycle of QDY-CS1 Harmonic Gear Reducers is generally 15–30 days.
Customized products usually require 30–45 days depending on reduction ratio, rated torque, installation dimensions, precision requirements, backlash specifications, application environment, and order quantity.
We implement complete quality control throughout the manufacturing process. From raw material inspection and precision machining to assembly and final testing, each production stage is carefully controlled.
Before shipment, every QDY-CS1 Harmonic Gear Reducers is tested for transmission accuracy, backlash, torque performance, vibration, noise, load capability, and reliability.
The standard payment method is T/T bank transfer. For large-volume projects and long-term cooperation orders, L/C payment terms can be discussed according to customer requirements.
Transportation methods include international express, air freight, sea freight, and railway transportation.
Products are packed with shockproof foam, moisture-proof sealed bags, independent cartons, and export wooden cases or pallet packaging for bulk orders to ensure safe delivery.
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