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Waimica case

Waimica's Hollow Shaft Gearbox Solution for Logistics Sorting System Rotating Arms

2022-08-19 Waimica

The logistics industry, particularly in automated parcel sorting systems, is undergoing a rapid transformation driven by the need for higher efficiency, precision, and throughput. Rotating arms are a critical component of these systems, responsible for accurately and reliably moving packages to designated sorting zones. This case study explores the challenges in the sector and how Waimica’s hollow shaft gearboxes provide an optimal solution to enhance performance and reliability in these applications.

1. Industry Challenges and Pain Points

Automated parcel sorting systems rely heavily on high-performance rotating arms for their operations. These systems typically include components such as conveyor belts, robotic arms, sensors, and sorting chutes. The integration of rotating arms demands precision, speed, and long-term stability, all of which are affected by the performance of the underlying transmission system.

Despite advancements in automation, the sector still faces several technical and operational challenges:

  • Transmission System Limitations: Conventional gearboxes often lack the required torque density and precision, leading to reduced sorting accuracy and speed.
  • System Stability: Frequent high-load starts and stops cause wear and tear, resulting in mechanical failure and unplanned downtime.
  • Energy Efficiency: High energy consumption is a concern, especially in large-scale systems where continuous operation is required.
  • Compact Design Requirements: Limited installation space in automated logistics systems makes it challenging to integrate traditional bulky gearboxes.
  • Environmental Conditions: Systems may operate in varying environments, such as high temperatures or cleanrooms, requiring gearboxes to maintain performance and durability under such conditions.

2. Key Role and Technical Requirements of Gearboxes in Rotating Arms

In automated sorting systems, gearboxes play a central role in ensuring smooth, accurate, and repeatable movement of the rotating arms. The following are the key technical requirements:

  • High Torque Density: To handle the dynamic load changes during sorting operations.
  • High Transmission Accuracy: Essential for precise positioning and repeatable motion cycles.
  • Fast Response Speed: Required for real-time control and rapid adjustments.
  • Compatibility and Installation Support: Must support through-hole (hollow shaft) mounting and integrate easily with motor and control systems.
  • Compact and Modular Design: Reduces space consumption and allows for flexible system configurations.
  • Excellent Shock Absorption: Minimizes vibration and ensures long-term reliability in high-cycle environments.
  • Environmental Adaptability: Must operate reliably in extreme temperatures, high humidity, or cleanroom conditions.
  • Long Service Life and Low Maintenance: Crucial for minimizing maintenance costs and downtime in 24/7 operations.

3. Waimica's Hollow Shaft Gearbox Solution

Waimica’s hollow shaft gearboxes are specifically designed to address the unique demands of rotating arm applications in parcel sorting systems. Below is a detailed overview of how Waimica's products match and exceed the requirements:

  • Structural Design Advantages: The hollow shaft design allows for direct motor mounting and cable routing through the center, reducing overall system complexity and space requirements. The modular construction supports easy customization and integration.
  • Performance Parameters: Waimica’s gearboxes offer high torque output, with options ranging from 100 Nm to 5000 Nm, and backlash as low as 3 arc-min, ensuring high positioning accuracy. The overall transmission efficiency exceeds 95%, and the input flange is compatible with major motor brands, simplifying integration.
  • Special Operating Conditions Support: Waimica gearboxes are rated for operation in temperatures from -30°C to +100°C and feature an IP65 protection rating, making them suitable for use in both standard and extreme environments. The design also allows for use in cleanrooms and high-vibration settings.
Parameter Value
Torque Range (Nm) 100 - 5000
Backlash (arc-min) < 3
Efficiency (%) > 95
Input Flange Type ISO 9409-1, IEC 60269
Operating Temperature (°C) -30 to +100
Protection Rating (IP) IP65
Mounting Type Through-shaft mounting, compact, modular

4. Conclusion and Waimica Brand Value

Waimica's hollow shaft gearboxes demonstrate a high level of engineering excellence and technical performance, meeting and surpassing the demanding requirements of automated parcel sorting systems. With strong R&D capabilities and a robust manufacturing process, Waimica delivers high-quality gearboxes that rival international brands in both performance and reliability, while offering a significantly better cost-to-performance ratio.

As the logistics industry continues to evolve toward higher degrees of automation and intelligent control, Waimica remains at the forefront of innovation, providing tailored solutions that support long-term growth and operational efficiency. Our products are designed not just for today’s challenges, but for the future demands of industrial automation.

Partnering with Waimica means investing in a gearbox solution that is reliable, efficient, and adaptable to your specific needs, while leveraging the advantages of Made-in-China engineering and manufacturing.