1. Applicable Workpieces & Cleaning Challenges

Suitable Housings

1. New Engine Manufacturing: Die-cast/machined aluminum engine blocks, cylinder heads, oil sumps, turbocharger housings, hybrid motor housings and transmission housings.

2. Refurbishment & Maintenance: Disassembled used engine housings, cast iron cylinder blocks and housings heavily contaminated with carbon deposits and sludge.

Typical Contaminants

Die-casting release agents, cutting fluids, aluminum/iron metal swarf, burrs on intersecting holes, carbon deposits in blind oil galleries, internal sludge, thread impurities and flash at parting lines.

Industry Standards

Compliant with VDA19 and ISO16232 automotive component cleanliness standards; control particulate contaminants ≤300μm, free of water stains and ionic residues.

2. Three Complete Sinobakr Cleaning Solutions by Production Scenario

Solution 1: CNC 5-Axis High-Pressure Integrated Cleaning Machine (Preferred for Mass Production at OEMs, Combined Deburring & Cleaning)

Core Equipment Specifications

• High-pressure system: 5–50 MPa variable-frequency pressurization, wear-resistant ruby nozzles with fan, rotary and straight jet types.

• Motion system: 3/5-axis servo linkage + 360° rotating tooling; extendable water jets reach intersecting oil galleries and water cooling jackets.

• Chamber: Fully enclosed single integrated chamber; loading, deburring, cleaning, rinsing and drying completed in one machine without workpiece transfer.

Standard Fully Automatic Process Flow

1. Fixture positioning & loading: Custom quick-change jigs, compatible with automatic manipulator docking for machining production lines.

2. CNC fixed-point high-pressure deburring (core function)

• Thin-walled aluminum housings: 30–35 MPa low-pressure mode to prevent housing deformation.

• Thick-walled cast iron housings: 40–50 MPa high-power deburring.

• Pre-programmed CNC trajectories for oil galleries and blind holes of each housing model; eliminates internal aluminum swarf and flash without blind spots.

3. Water-based neutral detergent spray degreasing: Aluminum-specific neutral cleaner, no strong alkali corrosion or surface oxidation discoloration.

4. Multi-stage DI water precision rinsing: Eliminates detergent residues to avoid white spots and watermarks.

5. Air knife cutting + hot air vacuum drying: 80–120℃ full-range hot air, no residual water in deep holes; workpieces fully dry with anti-rust protection upon discharge.

6. Closed-loop water circulation purification: Magnetic separation for metal swarf, cyclone sedimentation, precision filter elements and oil-water separation; 95% water recycling rate.

Advantages

Integrates two separate processes (deburring + cleaning) into one unit to reduce secondary contamination. Hundreds of pre-stored programs enable flexible mixed production for multiple housing models. Ideal for mass production lines with annual output over 100,000 engine assemblies.

Solution 2: Fully Automatic Multi-Tank Ultrasonic Cleaning Line (For Small & Medium Batches, Repair Shops, Light-Burr Housings)

Equipment Configuration

304 stainless steel multi-tank production line with three-sided high-frequency ultrasonic vibrators (40 kHz) and workpiece lifting oscillation system; equipped with heating, circulating filtration, hot air drying and oil-water separation modules.

Standard Process Flow

Loading → Pre-spray soaking (flushing large metal swarf) → Main ultrasonic cleaning (60℃ water-based degreasing & swarf removal) → Double DI water rinsing → Air cutting & hot air drying → Unloading.

Application Scenarios

1. Aluminum housings with only surface oil and shallow-hole swarf, no heavy deep-hole burrs post-machining.

2. Repair shop refurbishment of cylinder blocks and oil sumps with mild carbon deposits.

3. Discrete small-batch production with limited capital budget.

Limitations

Unable to fully remove burrs inside intersecting deep holes and threads; heavy-burr workpieces require pre-manual blasting or mechanical deburring.

Solution 3: Vacuum Hydrocarbon / Modified Alcohol Precision Cleaning Machine (For New Energy Hybrid Motor Housings Requiring Ultra-High Cleanliness)

Technical Features

Fully enclosed negative-pressure vacuum chamber; low-surface-tension hydrocarbon solvent combined with coupled ultrasonic and directional spraying. 99% solvent recovery via distillation regeneration, ultra-low VOC emissions for full environmental compliance.

Process Route

Vacuum ultrasonic cleaning → Solvent spray rinsing → Vapor degreasing fine cleaning → Low-temperature vacuum drying.

Suitable Housings

Hybrid / range-extender motor housings, complex water-jacketed housings and integrated electronic control housings. Delivers zero moisture, zero ionic residues and long-term anti-rust performance for premium new energy powertrain assemblies.

3. Differentiated Process Configurations for New & Used Housings

1. New Die-Cast / Machined Housings (CNC High-Pressure Solution Recommended)

• Pressure setting: 30–35 MPa low-pressure mode dedicated to aluminum alloys.

• Filtration: High-strength magnetic aluminum swarf separators to intercept micron-scale die-cast dust.

• Detergent: Neutral aluminum-protective water-based cleaner to prevent black oxidation on die-cast aluminum surfaces.

• Cleanliness assurance: Dual-stage DI water rinsing, reserved interface for online particulate inspection.

2. Disassembled Used Housings (Cylinder Blocks & Oil Sumps with Heavy Carbon Sludge)

• Pressure setting: 40–50 MPa high-pressure mode to dissolve hardened sludge and carbon deposits.

• Additional pre-soaking station: 65℃ detergent soak to soften internal stubborn grime.

• Rotating tooling accessory: 360° turnover flushing to clean dead zones on housing bottom and reinforcing ribs.

• Enhanced three-stage filtration: Sedimentation bins collect bulk carbon sludge to extend filter service life.

4. Core Competitive Advantages of Sinobakr Solutions

1. Complete Deep-Hole Coverage: 5-axis extendable rotary water jets reach intersecting oil galleries and threaded bottom holes inaccessible to standard spraying or ultrasonic equipment.

2. Material Compatibility & Protection: Variable adjustable pressure range prevents deformation of aluminum housings while delivering powerful descaling for cast iron; formula-specific cleaners for aluminum and iron components.

3. Water & Energy Conservation with Eco-Friendly Design: Closed water circulation and solvent regeneration reduce waste liquid discharge by 85%, fully meeting workshop environmental assessment standards.

4. Automatic Production Line Compatibility: Supports robotic loading/unloading, MES data interconnection, automatic upload of production output and cleanliness test data.

5. Flexible Model Changeover: Hundreds of pre-stored housing process programs; only jig plate replacement needed for model switching, cutting changeover time by 70%.

6. Full Closed-Loop Operation & Maintenance: Built-in self-diagnosis, automatic slag discharge and online filter replacement to cut manual maintenance costs.