Project

 

🔍 Eastern Gear Worm Reducer: The Core of Positioners (Robot Indexers)

 

Precision positioning is essential in industrial automation. Positioners, which require both high-load capacity and precise rotation, play a critical role in welding, assembly, and machining processes.

 

To meet these demands, Eastern Gear has developed a high-output, high-precision worm reducer, which has been supplied to H Corporation’s positioners since 2021. After extensive testing of various reducers, H Corporation selected Eastern Gear’s worm reducer due to its exceptional repeatability and precision.

 

⚙️ The Role of a High-Precision Worm Reducer in a Positioner

A positioner is not just a simple rotating device; it requires precise positioning control during welding and assembly. Therefore, ultra-precise reduction technology is essential. Eastern Gear’s worm reducer serves as a core component, offering high torque, low-speed control, and minimal backlash.

🔹 Key Advantages of Eastern Gear’s Precision Worm Reducer (EtG Drive)

✔️ High reduction ratio – Maintains high torque while allowing precise positioning
✔️ Exceptional repeatability – Maintains a positioning error within 0.02mm
✔️ High load capacity – Designed to support 2.5 to 7.5 tons
✔️ Enhanced durability – Operates for extended periods without overheating or performance degradation

 

Eastern Gear’s worm reducer functions as the primary reduction stage (1st reducer) in a positioner and is combined with a secondary reducer (roller cam) to enable ultra-precise positioning.

📊 Real-World Testing: Outstanding Precision Compared to Competitors

To verify the performance of positioners, H Corporation conducted a 30-day repeatability test.

📌 Test Conditions

 

• Load weight: 2.5t, 5t (steel plate)
• Load size: 2m x 4m (rectangular)
• Test duration: Over 10 hours per day for 30 days
• Measurements: Reducer heat generation, noise levels, and positioning deviation
• Required precision: Within ±0.1mm

 

📈 Test Results
✔️ Positioning error within 0.02mm (Industry-leading precision)
✔️ No heat generation or performance degradation during extended operation
✔️ Positioning angle deviation of only 0.0006°, ensuring ultra-precise rotation

 

As a result, H Corporation officially selected Eastern Gear’s worm reducer for its positioner lineup.

 

🏭 Successful Case Studies of Supply

Eastern Gear’s reducers have demonstrated their high performance in various industries and have been supplied to multiple leading companies.

✅ H Corporation’s robotic positioner – CD76 model (Ratio 9:1, 10:1, 13:1)
✅ M Corporation’s robotic stage – CD30 model (Ratio 60:1)

 

We provide customized gear ratios and designs to meet each client’s specific needs, ensuring the most optimized solutions.