Sinobakr Cleaning Solution for Engine Housings

This solution is designed for precision cleaning of aluminum engine housings, cylinder blocks, cylinder heads, gearbox housings and reducer housings (die‑cast and machined parts). It effectively removes machining oil, cutting fluid, aluminum chips, oxide dust, polishing wax and die‑casting release agent residues, meeting strict requirements of cleanliness, water‑mark‑free surface, corrosion resistance, eco‑friendly discharge and stable mass production. Suitable for combustion engine, hybrid and new‑energy drive motor housings.

I. Key Cleaning Challenges

1. Deep cavities, oil passages and threaded holes create hard‑to‑reach areas where aluminum chips and oil contaminants remain trapped.

2. Aluminum alloy is susceptible to whitening, oxidation, water marks and pitting corrosion.

3. Mass production demands consistent cleanliness and thorough drying performance.

4. Complies with major OEM standards including VDA 19, ISO 16232, and specifications of BYD, Geely, Volkswagen and other automakers.

II. Recommended Sinobakr Cleaning Processes

Option 1: Ultrasonic + High‑Pressure Spray Cleaning (Small‑to‑medium Batch, Complex‑cavity Housings)

Process Flow: Loading → Rough Ultrasonic Cleaning → Targeted High‑Pressure Spray (for oil passages & threaded holes) → Fine Ultrasonic Cleaning → Pure Water Rinsing → Hot‑air / Vacuum Drying → Unloading

• Cleaning Media: Eco‑friendly modified alcohol solvent / neutral water‑based precision detergent

• Core Equipment: Sinobakr multi‑tank ultrasonic cleaning machine with high‑pressure targeted spray module

• Advantages: Cost‑effective, excellent cleaning performance for complex cavities, compatible with stand‑alone automatic operation

Option 2: Hydrocarbon Vacuum Cleaning (High‑grade Engine Housings, Ultra‑high Cleanliness Requirements)

Process Flow: Vacuum Spray Cleaning → Vacuum Ultrasonic Cleaning → Vacuum Rinsing → Vacuum Distillation Drying → Solvent Recovery

• Cleaning Media: Sinobakr dedicated eco‑friendly hydrocarbon solvent

• Core Equipment: Sinobakr fully‑enclosed vacuum hydrocarbon cleaning machine

• Advantages: Water‑mark‑free, oxidation‑free, complete drying, recyclable solvent, fully meets high‑end OEM cleanliness standards for precision aluminum parts

Option 3: Automatic Rotary Spray Cleaning Line (High‑volume Continuous Production)

Process Flow: Automatic Loading → High‑pressure Rotary Rough Spray → Targeted Hole Flushing → Fine Spray Cleaning → Multi‑stage Pure Water Rinsing → Air Blowing + Hot‑air Drying → Cooling & Unloading

• Core Equipment: Sinobakr gantry / pass‑through high‑pressure spray cleaning machine

• Advantages: High throughput, stable cycle time, high automation level, ideal for mass‑production assembly lines of engine housings

III. Core Features of Sinobakr Equipment

1. High‑pressure directional spray system: Precisely flushes oil passages, threaded holes and blind holes to eliminate aluminum chips.

2. Special ultrasonic vibrating plates: High‑power uniform sound field without damaging aluminum surfaces.

3. Precision filtration & oil‑removal system: Multi‑stage filtration ensures long‑term detergent stability and consistent cleanliness.

4. Vacuum drying / circulating hot‑air drying: Eliminates residual water in deep cavities and prevents water marks.

5. Material compatibility: 304/316 stainless steel construction, neutral detergent formula to avoid aluminum whitening and corrosion.

6. Automation integration: Compatible with robots, production lines and MES traceability systems for smart factories.

IV. Compliance Standards (Directly Applicable to OEM Requirements)

• Cleanliness: Particle size, weight and quantity meet VDA 19 / ISO 16232 standards.

• Surface Quality: Oil‑free, chip‑free, water‑mark‑free, oxidation‑free and spot‑free.

• Residue: Complete volatilization of solvent and detergent with no chemical residues.

• Environmental Protection: Closed‑loop recycled hydrocarbon solvent, easily treatable wastewater for water‑based cleaning, compliant with discharge regulations.

V. Applicable Workpieces

• Combustion engines: Cylinder blocks, cylinder heads, timing housings, oil pans

• New‑energy drives: Motor housings, reducer housings, inverter housings, end covers

• General power parts: Air compressor housings, pump housings and other precision aluminum die‑cast components