I. Application Background & Cleaning Pain Points of Camshafts

1. Workpieces & Contaminants

Cleaning objects: Cast iron/alloy camshafts for gasoline and diesel engines, including cam lobes, central oil passages, radial inclined oil holes, keyways and journals as well as tiny intersecting blind holes.Contaminants: Grinding sludge, cutting emulsion, iron & aluminum chips, micro burrs, antirust oil and polishing paste residues.Industry standards: Comply with ISO 16232 automotive component cleanliness standard; particle size ≤200μm, surface oil residue ≤30mg/m²; oil passages free of blockage, watermarks and rust.

2. Drawbacks of Conventional Cleaning Methods

1. Ordinary spray cleaning: Deep oil passages and intersecting blind holes cannot be fully flushed; micro burr residues remain, leading to unstable cleanliness.

2. Single ultrasonic cleaning: Unable to fully cover long slender shafts; fine iron debris easily gets trapped inside oil holes, and water stains form after drying.

3. Basic high-pressure washers: Without CNC follow-up motion, nozzles require manual adjustment, resulting in long model changeover time; uncontrollable pressure may damage quenched cam surfaces.

4. Low production capacity, no data traceability, incompatible with mass production assembly lines of OEMs.

II. Customized Configuration of Bakr CNC High-Pressure Washer for Camshafts

Model: Sinobakr CNC Intelligent High-Pressure Cleaning Center with 5 Integrated Stations, specially developed for long shaft engine components.

1. Core Hardware Parameters

1. High-pressure system: Stepless pressure regulation from 0 to 50MPa. Standard camshaft process adopts 18–25MPa, which efficiently removes burrs inside oil holes without damaging quenched cam layers; large high-pressure flow delivers strong penetration for deep holes.

2. CNC multi-axis servo linkage: X/Y/Z linear axes + A-axis indexing rotation for workpieces, positioning accuracy of 0.08mm. The nozzle magazine is equipped with 5 sets of dedicated rotating high-pressure nozzles for automatic tool change, precisely aligning with each group of radial oil holes.

3. Clamping fixture for workpieces: Pneumatic tip clamping at both ends of camshafts; servo-driven 360° constant-speed rotation of workpieces to fully spray cam profiles and journals without dead zones. Simply replace fixture plates to adapt to camshafts of 1.2m/1.6m/2.0m lengths with one-click model switching.

4. Integrated 5-station design: Rough high-pressure cleaning → precision rinsing → air knife dehydration → vacuum hot air drying → antirust spraying. Parallel processing at each station with adjustable cycle time of 30–90s per shaft.

5. Multi-stage filtration circulation system: 3-stage bag filter, oil-water separator and magnetic iron removal device with filtration precision of 5–20μm. Recycled cleaning liquid reduces consumable costs.

6. Control system: 19-inch touch screen with Codesys intelligent platform, storing dedicated cleaning programs for multiple camshaft models. Real-time monitoring of pressure, temperature, cleaning duration and filter differential pressure; early warning for wearing parts; exportable production data for traceability.

2. Special Optimized Structures for Camshafts

• Anti-vibration tip supports for long slender shafts to avoid uneven cleaning caused by rotational runout.

• Extended directional rotating high-pressure nozzles for deep central through-holes to flush accumulated debris inside passages.

• Combined vacuum & hot air drying to eliminate residual water in oil passages and prevent oxidation and rust after machining.

• Full stainless steel cleaning chamber resistant to corrosion by water-based cleaning agents, avoiding secondary metal particle shedding.