Home › Geyontech Customer Case Study — High-Precision Helical Gears Powering Collaborative Robot Joint Upgrades

Geyontech Customer Case Study — High-Precision Helical Gears Powering Collaborative Robot Joint Upgrades

Geyontech developed a custom high-precision helical gear pair (Module 1.25, gear ratio 3:1, helix angle 15°) for Company A. Backlash was reduced from

Geyontech Customer Case Study — High-Precision Helical Gears Powering Collaborative Robot Joint Upgrades

Date: 2026-07-07 | Industry: Smart Robotics

1. Client Background

Company A, a Shenzhen-based collaborative robot manufacturer producing approximately 3,000 collaborative robots annually for 3C electronics assembly and light material handling applications. Their 6th-generation joint module required higher transmission accuracy and backlash control, which their existing supplier could not consistently meet — specifically backlash ≤6 arcmin in mass production.

2. Challenges

ParameterRequirementPrevious Supplier Performance
Transmission Backlash≤6 arcmin5–12 arcmin, high variation
Tooth Surface HardnessHRC 58–62HRC 52–56
Batch Delivery Lead Time20 days/batch28–35 days
Noise (1m distance)≤58 dB(A)62–65 dB(A)

3. Geyontech Solution

Geyontech developed a custom high-precision helical gear pair (Module 1.25, gear ratio 3:1, helix angle 15°):

  1. Material Process: 20CrMnTi carburized and quenched, tooth hardness stable at HRC 59–61
  2. Accuracy Grade: Ground to DIN 6, cumulative pitch error ≤0.012 mm
  3. Surface Treatment: Superfinishing + smoothing, surface roughness Ra ≤0.3 μm
  4. Full Inspection: 100% gear measurement center inspection + matched marking, each pair with inspection report

4. Results

After 3 rounds of pilot production (100 pairs each), mass production began in Q1 2026:

MetricBeforeAfterImprovement
Backlash5–12 arcmin4–5.5 arcmin60% better consistency
Noise Level62–65 dB(A)54–57 dB(A)~8 dB reduction
Delivery Time28–35 days18–22 days35% shorter
Batch Pass Rate85%98.6%+13.6%

Customer feedback: “Geyontech significantly outperformed our previous supplier in precision consistency and delivery reliability, enabling smooth mass production of our 6th-generation joint module.”

5. Customer Testimonial

“From prototype to mass production in under 3 months — Geyontech’s technical responsiveness and process control left a deep impression on us.” — Procurement Director, Company A