Hota Industrial, Taiwan’s largest drive component manufacturer, has achieved a 20% increase in productivity and significantly reduced set-up time in the production of electric car transmission parts by integrating the Mando G211 mandrel from Hainbuch.
Faced with high demands from processing 20,000 low-alloy case-hardening steel components monthly, Hota sought improved precision and process reliability. Previously using collets for gear production, the company encountered issues with concentricity and repeatability. The Mando G211 mandrel, with its radial pull-back clamping force of 42 to 150 kN, proved the perfect solution, offering superior rigidity and stability.
Installed on Hota’s Hartech HGH-250 gear hobbing machines, the mandrel’s segmented, vulcanized clamping bushings dampen vibrations, improving tool life and reducing machining time per part. Set-up time was also cut by 20%, enhancing overall efficiency.
Alex Chao, Deputy Head of Design at Hota Industrial, praised Hainbuch’s service and the mandrel’s performance: “We are very satisfied with its stability, service life, and price-performance ratio.”
The success has prompted Hota to standardize the Mando G211 across all new machines, further enhancing production capabilities.