Case 1: Vacuum Modified Alcohol Ultrasonic Cleaning for Harmonic Reducer Parts

Customer: Domestic humanoid robot core reducer manufacturerWorkpieces: Flex spline, circular spline, wave generator and micro needle bearings of harmonic reducer. Thin-walled elastic components vulnerable to damage.Contaminants: Grinding fluid, lapping compound, micron metal powder and cutting oil.Pain points: Micro debris in tooth roots and raceways are hard to remove. Thin-walled flex splines are susceptible to cavitation corrosion and oxidation discoloration. Residual particles after conventional cleaning cause three-body wear and permanent precision loss.Sinobakr Solution: Fully enclosed vacuum modified alcohol ultrasonic cleaning line with 40kHz gentle high-frequency ultrasonic. Vacuum degassing improves penetration into tiny gaps. Process: vacuum ultrasonic rough cleaning → ultrasonic fine cleaning → spray rinsing → vacuum drying. Distillation recovery system with solvent recovery rate＞99%.Results: Max residual particle ≤300μm, 6-month anti-rust protection. Assembly yield of reducers improved, precision drift reduced, realizing import substitution.

Case 2: Hydrocarbon Ultrasonic Cleaning for RV Reducer Housings & Cycloidal Gears

Customer: Humanoid robot joint module manufacturerWorkpieces: Aluminum alloy RV reducer housings, cycloidal gears, eccentric shafts with numerous cross blind holes and deep oil channels.Contaminants: CNC cutting oil, aluminum fine chips and polishing residues.Pain points: Chips trapped inside cross holes; watermarks and aluminum oxidation in traditional aqueous cleaning; frequent product changeover required.Sinobakr Solution: Multi-station automatic hydrocarbon ultrasonic cleaning system with circulating filtration and oil separation. PLC stores multiple cleaning recipes for one-click switching, vacuum drying for zero watermarks.Results: Stable cavity cleanliness, supports 24-hour continuous mass production, recycled hydrocarbon solvent cuts consumable cost and eliminates aluminum whitening.

Case 3: Ultrasonic Cleaning for Humanoid Robot Joint Gears & Shafts

Customer: Supplier of humanoid robot joint transmission partsWorkpieces: Joint planetary gears, precision shafts and thrust washers (copper alloy & stainless steel).Contaminants: Cutting oil, polishing wax and fine metal powder.Pain points: Stubborn polishing wax in tooth grooves and threads; copper parts prone to blackening; parts require direct assembly and greasing after cleaning.Sinobakr Solution: Vacuum hydrocarbon ultrasonic cleaning with multi-frequency options. Custom fixtures prevent collision. Fully enclosed chamber avoids copper oxidation.Results: Complete removal of polishing wax; parts can be assembled directly after cleaning with reliable anti-tarnish performance.

Case 4: Semi-automatic Aqueous Ultrasonic Cleaning for Prototype Joint Housings & Sensor Bases

Customer: Humanoid robot startup for prototype R&DWorkpieces: Die-cast aluminum joint housings and force sensor bases, low-volume multi-variety trial production.Contaminants: CNC cutting fluid, die-casting release agent and aluminum dust.Pain points: Small batch volume, large solvent line not economical, quick cleanliness verification required.Sinobakr Solution: Semi-automatic multi-tank aqueous ultrasonic system: ultrasonic rough wash → DI water rinsing → hot air drying. Adjustable ultrasonic power, temperature and duration for process trial.Results: Cost-effective pre-treatment for prototypes. Validated recipes can be migrated to full-automatic solvent production line in mass production stage.