FAQ Section

Q1. What is a robot cable?

A robot cable is a specialized type of cable designed to withstand the extreme mechanical stresses found in robotic applications. Unlike standard flexible cables, robot cables are engineered for:

• Continuous bending

• Torsional (twisting) motion

• High-speed movement

• Abrasion and oil exposure

• Stable signal transmission under motion

They are used in industrial robots, cable carriers, end-of-arm tooling, and other automation systems where reliability is critical.

Q2. What is torsion resistance?

Torsion resistance refers to a cable’s ability to withstand twisting along its longitudinal axis without damage. In a typical 6-axis robot, cables may twist:

• ±90° to ±360° per meter

• Millions of times during operation

A torsion-resistant cable uses:

• Special conductor stranding

• Reinforced insulation

• Flexible jacket materials

• Optimized internal structure

Without torsion resistance, cables will fail prematurely due to conductor fatigue or insulation cracking.

Q3. How many cycles should a robot cable withstand?

High-quality robot cables should withstand:

• 5 to 10 million bending cycles

• 3 to 5 million torsion cycles

• High-speed motion at various radii

Some premium cables can exceed 20 million cycles depending on the application and test conditions.

The required cycle life depends on:

• Robot speed

• Motion type

• Installation method

• Environmental conditions

For continuous 24/7 industrial operation, choosing a cable with a high flex-life rating is essential.

Conclusion

Robot cables are a critical component of any automated system. Selecting the right cable ensures:

• Long service life

• Reduced downtime

• Stable signal transmission

• Lower maintenance costs

• Improved robot performance

By understanding motion types, durability requirements, materials, certifications, and installation best practices, engineers can make informed decisions that enhance reliability and productivity.