60–90 r/min Dual-Speed Brake Disc Lathe and Brake Drum Lathe with 180–350 mm Rotor and Drum Capacity and 200 kg Cast-Iron Bed

Manufactured by Howann, the C9335 High-Precision Brake Disc and Drum Lathe Machine is engineered to meet the demanding tolerances, rapid turnaround schedules, and rigorous safety standards of modern vehicle service stations. As modern automotive braking systems face increased thermal loads and regenerative friction demands, eliminating rotor vibration, pedal pulsation, and surface scoring requires absolute machining precision.

Constructed upon a heavy-gauge 200 kg cast-iron bed that dampens resonant vibrations during high-speed cutting passes, the Howann repair workstation integrates an optimized 0.75 kW copper-core motor, twin cross-feed tool carriages for simultaneous disc and drum machining, and an intuitive control interface. This robust engineering configuration ensures micrometric surface finish accuracy, eliminating brake squeal and restoring optimal friction pad contact.

• Firsthand Workshop Experience: Designed alongside master mechanics to streamline setup times — quick-change arbor tooling and adjustable cross-slides reduce rotor mounting and cutting times by 40%.
• Deep Engineering Expertise: Dual-speed spindle mechanics (60 and 90 r/min) allow technicians to match rotational velocity perfectly to hard alloy rotors and cast-iron drums, preventing tool chatter.
• Industry Authoritativeness: Manufactured under strict ISO9001 quality protocols and CE safety guidelines, complete with verified machinery test reports and outgoing inspection sign-offs.
• Uncompromised Trustworthiness: Backed by a 1-year comprehensive warranty covering motor and gearbox components, supported by responsive global engineering assistance.
• Rigid Cast-Iron Bed Construction: Heavy-mass damping architecture absorbs harmonic vibrations, ensuring a mirror-smooth micro-finish that prevents brake pad glazing.

1. Workpiece Mounting & Centering: The damaged rotor or drum is secured onto the precision spindle arbor using standardized conical adapters and centering bells.
2. Tool Bit Calibration: Technicians adjust the twin cutting tips to engage both sides of the disc or the inner friction face of the drum simultaneously.
3. Automated Resurfacing Pass: Engaging the auto-feed mechanism drives the tool carriage across the workpiece at calibrated feed rates, shaving away warped layers cleanly.
4. Final Quality Inspection: The machined rotor emerges with a uniform non-directional crosshatch finish, ready for immediate reinstallation with new brake pads.

• Essential workshop station for in-house brake rotor skimming and drum reboring.
• Light Commercial Fleet Maintenance: Servicing delivery vans, utility trucks, and passenger transport vehicles under high-wear duty cycles.
• Specialized Brake Restoration Shops: Rebuilding vintage and performance vehicle braking components requiring tight dimensional tolerances.