Step 1: Raw Material & Machining Inspection
- 100% Comprehensive Inspection: We abandon random sampling. Every single valve block, cylinder tube, and oil pipe undergoes a 100% visual and illuminated inspection before entering the next phase.
- Endoscope Technology for Blind Holes: For complex internal structures and blind holes, we utilize industrial endoscopes to ensure zero iron filings, burrs, or rust remain hidden inside.
- Multi-Angle Verification: Machined parts are examined under direct and oblique lighting to eliminate any microscopic defects that could compromise the sealing system.
Step 2: Precision Cleaning Process
Ultrasonic & High-Pressure Washing: All critical components go through an advanced dual-cleaning process. We combine deep ultrasonic vibration with high-pressure washing to eradicate all industrial residues.
Strict Temperature & Parameter Control: Our cleaning equipment operates under strictly monitored temperatures (50°C - 60°C) with standardized cycles to guarantee consistent cleanliness.
Targeted Clearing for Complex Geometries: High-pressure pneumatic blow-drying is applied specifically to valve ports and threaded holes, preventing any fluid or particle retention.
Step 3: Standardized & Contamination-Free Assembly
- Contamination-Free Handling: Assembly technicians are strictly required to use clean rubber gloves and lint-free cloths to prevent secondary contamination during the assembly process.
- Precision Seal Installation: Seals, O-rings, and support rings are installed using dedicated tooling with strict directional protocols to prevent twisting, scratching, or cutting.
- Traceability System: Every assembled hydraulic cylinder is stamped with a unique identification code, linking it to the specific production batch and raw material supplier for lifetime traceability.
Step 4: 100% Performance & Pressure Testing
Rigorous Pressure Testing: Every completed hydraulic cylinder is mounted on our testing rig for multi-stage pressure and holding tests, complying with strict international standards.
All-Around Leak Detection: During the pressure holding phase, inspectors meticulously check the piston rod seals, welding seams, and valve block joints to ensure zero leakage.
Torque & Anti-Loosening Verification: All fittings are tightened using calibrated torque wrenches, and vital joints are marked with anti-loosening paint to ensure safety under high-vibration working conditions.
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