Case 1: Cleaning for New‑Energy Vehicle Reducer Gears

Workpieces: Helical gears, planetary gears and differential gears for new‑energy vehicle reducers, ISO Class 3‑4 precision, with oil holes and spline grooves.Original Pain Points: Residual cutting oil, grinding debris and lapping compound remained in tooth grooves and oil holes after gear grinding. Aqueous cleaning easily caused watermarks and rust. Particle residues triggered abnormal noise and poor NVH performance, failing ISO 16232 automotive cleanliness standards.sinobakr Solution: Vacuum hydrocarbon ultrasonic cleaning machine. Process: vacuum‑hydrocarbon main ultrasonic cleaning → hydrocarbon rinsing → steam vapor degreasing → vacuum drying. Custom rotary fixtures for gears, compatible with mass‑production automatic lines.Results: Micro‑sized particles thoroughly removed, zero watermarks and rust. Reducer assembly noise is greatly improved. Solvent recovery rate reaches over 92 %, reducing hazardous‑waste output and meeting strict cleanliness requirements for new‑energy automotive components.

Case 2: Precision Gears for Industrial Robot Planetary Reducers

Workpieces: Planetary gears and cycloidal wheels for robot joint reducers, miniature precision gears. No particles above 5 μm are permitted.Original Pain Points: Ultra‑fine iron chips and lapping compound embedded in narrow tooth roots. Conventional blowing & soaking could not achieve consistent cleanliness. Residual contaminants caused reducer jamming, excessive noise and short service life.sinobakr Solution: Vacuum hydrocarbon ultrasonic cleaning equipment. High‑frequency ultrasound plus hydrocarbon solvent, steam vapor degreasing for deep purification, full vacuum drying without moisture residue. Can work with pre‑deburring process.Results: Contaminants in tooth roots and blind holes are fully eliminated. Reject rate caused by noise drops significantly, and service‑life test pass rate increases. Batch processing supports high‑end robot component quality standards.

Case 3: Transmission Gears for Fuel‑powered Automobiles

Workpieces: Shift gears and synchronizer gears for automotive transmissions, mass‑produced metal gears with residual cutting fluid, anti‑rust oil and fine metal chips after heat treatment.Original Pain Points: Kerosene soaking and manual brushing delivered unstable cleanliness and high VOC emissions. Dead zones existed at tooth roots and keyways. Heavy labor cost and human‑dependent quality.sinobakr Solution: Automatic vacuum hydrocarbon ultrasonic cleaning machine with integrated cleaning, rinsing, steam vapor degreasing and vacuum drying. Solvent regenerated via distillation recycling.Results: Oil and metal chips are thoroughly removed with stable cleaning quality. No secondary wiping or drying required. Hazardous‑waste output is largely reduced to satisfy environmental‑protection regulations and mass‑production takt time.

Case 4: Reducer Gears for High‑precision Machine Tools (Small‑batch, Multi‑variant Production)

Workpieces: High‑precision spur gears and helical gears for machine‑tool spindle reducers, frequent product‑model change‑overs with small‑batch orders.Original Pain Points: Frequent fixture‑switching for various gear sizes. Workpieces tended to oxidize and discolor after cleaning. No corrosion or water‑spot defects are allowed on tooth surfaces.sinobakr Solution: Single‑chamber vacuum hydrocarbon ultrasonic cleaning machine for fast fixture replacement. Low‑temperature vacuum cleaning prevents oxidation of precision tooth profiles.Results: Easy model switching for multi‑variant small‑batch manufacturing. Clean and bright workpieces without oxidation spots, meeting assembly‑level cleanliness for high‑end machine‑tool transmission parts.

Case 5: Medium‑small Transmission Gears for Wind‑power Equipment

Workpieces: Medium‑small gears for wind‑power yaw & pitch systems, relatively large‑size gears with heat‑treatment oil stains and iron debris.Original Pain Points: Complex structures including blind holes and oil grooves. Ordinary spray cleaning only treated outer surfaces, leaving contaminants hidden inside gaps, which accelerated gearbox wear and shortened equipment service life.sinobakr Solution: Large‑chamber vacuum hydrocarbon ultrasonic cleaning machine. High‑power ultrasound enhances solvent penetration under vacuum conditions, supported by steam vapor degreasing and vacuum drying.Results: Contaminants inside tooth grooves and oil channels are effectively stripped. Fully dry workpieces without residues. Lower risk of gearbox wear‑related failures, complying with assembly standards for wind‑power components.