For aluminum die‑cast housings, cast iron housings, gearbox housings, engine blocks, oil pans and end covers, this solution targets key contaminants including aluminum debris, cutting fluid, release agent, polishing compound, anti‑rust oil and micro‑residues in blind holes and threaded holes. It meets VDA 19 and ISO 16232 cleanliness standards for OEM mass‑production automated lines, balancing environmental compliance and drying efficiency.

I. Core Cleaning Challenges

1. Complex housing structures with deep holes, threaded holes, oil passages, grooves and inner cavities prone to residue buildup

2. Risk of oxidation, white spots and discoloration on die‑cast aluminum parts after cleaning

3. Strict cleanliness requirements for particulate matter, oil contamination and metal shavings

4. Demand for integrated washing‑rinsing‑drying processes with stable cycle times for mass production

II. Recommended Buck Cleaning Process

Loading → High‑pressure Spray Pre‑washing → Ultrasonic Precision Cleaning → Spray Rinsing → Vacuum Hot‑air Drying → Unloading

1. High‑pressure Spray Pre‑washing (Removal of large aluminum debris and heavy oil contamination)Equipment: Buck CNC High‑pressure Rotary Spray Cleaning MachinePressure: 8–15 MPa, 360° multi‑angle spray nozzles covering inner/outer surfaces and oil passages of housingsFunction: Flush large chips, die‑casting residues and thick cutting fluid to prevent contaminants from entering precision cleaning stations

2. Ultrasonic Precision Cleaning (Deep decontamination for blind and threaded holes)Equipment: Buck Automatic Ultrasonic Cleaning Machine / Hydrocarbon Vacuum Cleaning MachineCleaning Medium: Neutral water‑based eco‑friendly cleaning agent (aluminum‑alloy‑specific, non‑corrosive) / modified alcohol solventUltrasonic Frequency: Dual‑frequency 28 kHz + 40 kHz for resonance‑based removal of micro‑residues in complex inner cavitiesTemperature: 45–55 °C to boost oil solubility and shorten cleaning time

3. Multi‑stage Pure Water RinsingMulti‑stage overflow rinsing with pure and deionized water to eliminate detergent residue, housing whitening and corrosion, complying with anti‑rust requirements for automotive parts.

4. Vacuum Hot‑air Drying (Water‑mark‑free, residue‑free drying)Equipped with Buck vacuum drying system to rapidly remove residual water from threaded and deep holes, preventing oxidation from water accumulation; fully automated without manual blow‑drying, suitable for production line integration.

III. Buck Equipment Selection by Output & Cleanliness Grade

Option A: Economical Model for Small‑to‑Medium Batch Production (Daily Output ＜800 pcs)

Automatic single‑tank/multi‑tank ultrasonic cleaning lineAdvantages: Low investment, small footprint, easy operation; suitable for maintenance workshops and small‑and‑medium component manufacturersCompliance: General cleanliness standards, requirements for secondary suppliers of mainstream OEMs

Option B: Automated Production Line for Mass Production (Daily Output 800–3000 pcs)

Automatic inline combined cleaning line with high‑pressure spraying + ultrasonic cleaningAdvantages: Continuous conveying, adjustable cycle times, compatible with loading/unloading robots, fully automated operationCompliance: VDA 19, ISO 16232 and new‑energy three‑electric housing cleanliness standards

Option C: High‑precision Premium Model for New‑energy & OEM Customers

Buck hydrocarbon / modified alcohol vacuum cleaning‑drying integrated machineAdvantages: Fully enclosed eco‑friendly cleaning, zero wastewater discharge, ultra‑high cleaning precision, thorough water‑mark‑free dryingApplication: High‑end gearbox housings, hybrid/new‑energy motor housings and precision engine housings for European and American automaker exports

IV. Buck Supporting Advantages

1. Custom‑formulated cleaning agents: Aluminum‑alloy‑specific neutral, non‑phosphorus, recyclable anti‑corrosion solutions

2. International certifications: CE, UL508A and NFPA79 compliant for overseas clients

3. Customized processes: Tailored spray angles, ultrasonic power and cycle times based on housing material (aluminum/cast iron), hole structure and contamination type

4. After‑sales service: Complete machine warranty, on‑site installation & commissioning, cleanliness verification and direct production‑line integration support