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Waimica case

Case Study: Waimica's Tower Gearbox Solutions for Injection Molding Automation

2020-10-18 Waimica

Injection molding automation is a critical segment within the broader industrial automation industry, especially for high-volume production in sectors such as automotive, consumer electronics, and medical devices. Central to this process are multi-axis robotic systems used for tasks like part extraction, positioning, and assembly. These systems demand precision, robustness, and energy efficiency, with gearboxes playing a vital role in ensuring accurate motion control and reliable performance.

Industry Challenges and Pain Points:

Current injection molding robotic systems are typically composed of multiple axes (usually 3–6), including linear and rotational movements, to perform complex tasks. These systems are increasingly adopting high-speed and high-accuracy operations due to the rising demands for productivity and part quality. However, this advancement brings several key challenges:

  • Transmission system limitations: Conventional gearboxes often suffer from low torque density and poor backlash control, leading to reduced accuracy and longer cycle times.
  • Equipment stability: Frequent load changes and repetitive high-speed movements can cause vibrations and instability, especially in multi-axis configurations.
  • Energy inefficiency: Inefficient power transmission reduces system performance and increases long-term operational costs.
  • Space constraints: High compactness is required to integrate multiple axes in limited installation areas.

These challenges highlight the need for advanced gearbox solutions that can meet the mechanical and operational demands of injection molding automation.

Key Role of Gearboxes and Technical Requirements:

Gearboxes in multi-axis robotic positioning systems are the backbone of motion control. They must satisfy the following technical criteria:

  • High torque density: Ensures robust performance under dynamic load conditions.
  • High transmission accuracy: Achieves sub-degree backlash to support precision positioning.
  • Fast response speed: Enables rapid acceleration and deceleration to maintain high throughput.
  • Heavy-duty operation compatibility: Resists wear and maintains performance in harsh industrial environments.
  • High reliability and long service life: Reduces maintenance and downtime, especially in 24/7 operations.
  • Environmental adaptability: Must operate reliably under high temperatures, dust, or in cleanroom conditions.

Meeting these requirements is essential for improving the overall efficiency, precision, and durability of robotic systems in injection molding applications.

Waimica's Tower Gearbox Solution:

Waimica's Tower Gearbox (Industrial Tower Drive) is specifically designed to address the key challenges in injection molding automation. The solution is built with a strong emphasis on compactness, modularity, and robust performance.

  • Compact and modular design: Facilitates easy integration into tight spaces and allows for flexible system configuration.
  • High-performance characteristics: Delivers high torque density and minimal backlash for high-precision applications.
  • Special environmental adaptations: Includes features for high-temperature operation and dust resistance, with options for cleanroom compatibility and high IP ratings.

Below is a summary of key technical parameters for Waimica's Tower Gearbox series:

Parameter Value
Torque range 500–5000 Nm
Backlash ≤ 3 arcmin
Transmission efficiency ≥ 90%
Input flange type ISO 9409-1
Operating temperature -20°C to +120°C
IP rating IP54 to IP67 (customizable)
Mounting options Flange, foot, or shaft mounting

These parameters ensure that the Tower Gearbox is capable of handling the rigors of multi-axis robotic systems in injection molding environments. The modular design allows for easy maintenance and replacement of individual components without affecting the entire system. The high IP ratings and thermal resistance make the gearboxes suitable for environments with challenging operating conditions.

Conclusion and Waimica's Value Proposition:

Waimica’s Tower Gearbox delivers a compelling balance of performance, reliability, and cost-effectiveness, making it a preferred alternative to foreign counterparts. Our advanced engineering and flexible customization capabilities enable seamless integration into complex robotic systems.

As the injection molding industry continues to evolve with the adoption of Industry 4.0 and smart manufacturing practices, Waimica remains a strategic partner in driving automation efficiency. Our commitment to quality, innovation, and customer-focused solutions positions us as a reliable supplier of high-performance gearboxes for multi-axis robotic positioning systems.

With a global footprint and a strong focus on European, American, and East Asian markets, Waimica is uniquely equipped to support the next generation of injection molding automation with sustainable and advanced transmission technology.