Sinobakr provides standardized cleaning solutions tailored for hydraulic valve bodies, piston pumps/motors, hydraulic cylinders, valve spools, manifold blocks and precision small hydraulic parts. Covering four working scenarios: mass precision production, heavy-oil maintenance cleaning, small & medium-batch processing and automated production lines, our portfolio includes four core cleaning technologies: CNC high-pressure jet cleaning, vacuum ultrasonic hydrocarbon cleaning, closed modified alcohol cleaning and combined aqueous spray & ultrasonic cleaning. All solutions deliver cleanliness up to ≤3~5μm, zero rust and watermark residues, complying with VDA19 and GB/T42087 national standards for hydraulic component cleanliness.

Four Standard Cleaning Solutions by Hydraulic Workpiece Application

Solution 1: CNC Controlled High-Pressure Jet Cleaning | For Hydraulic Cylinders, Manifold Blocks & Pump Housings (Ideal for heavy grease & deep blind hole cleaning)

Applicable Workpieces: Hydraulic cylinders, multi-way valve bodies, piston pump cast housings; for removing baked hydraulic sludge, ferrous/aluminum machining swarf and thermoset hydraulic oil inside deep bores.Standard Equipment: Sinobakr BK-CNC Series Flexible Precision Cleaning Centers (10~50MPa digitally controlled high pressure, multi-axis rotating nozzles, targeted jetting for deep blind holes).Standard Process Flow:Thread hole plugging → 30MPa rough exterior high-pressure flushing → programmable CNC directional high-pressure jetting for cross bores & blind galleries → low-pressure aqueous rinsing → hot air closed-loop drying → cleanliness inspectionKey Advantages: Up to 99% cleaning efficiency for deep intersecting oil galleries; fast model changeover for varied cylinder specifications to replace manual scrubbing; eco-friendly low-VOC formula with recyclable aqueous cleaning fluid via filtration.

Solution 2: Fully Enclosed Vacuum Hydrocarbon Ultrasonic Cleaning | Precision Spools, Pistons & Valve Plates (High-cleanliness mass production)

Applicable Workpieces: Precision valve spools, pistons, valve plates, vane pump components; meets VDA19 particulate cleanliness standard ≤5μm with zero watermarks or surface oxidation.Standard Equipment: Sinobakr BK-5144RYH 5-station automatic hydrocarbon cleaning machine (degassed vacuum ultrasonics + vapor rinse + full vacuum drying).Process Flow:Basket loading → vacuum ultrasonic degreasing for hydraulic oil removal → enclosed fine spray rinsing → condensed vapor rinsing → negative-pressure vacuum drying → dry part unloadingHighlights: ≥95% solvent recovery via in-process distillation, no wastewater discharge; vacuum environment prevents oxidation, the preferred option for mass production of high-precision hydraulic parts.

Solution 3: Closed Modified Alcohol Eco-Cleaning | Aluminum Hydraulic Valves & Servo Hydraulic Components (Corrosion-free for lightweight precision aluminum parts)

Applicable Workpieces: Cast-aluminum servo valves, miniature hydraulic manifolds and aerospace-grade precision hydraulic components; formulated to avoid caustic etching on vulnerable aluminum substrates.Equipment: Sinobakr BK-400RXH Fully Enclosed Modified Alcohol Cleaning SystemProcess: Pre-spray prewash → ambient-temperature fine cleaning