Frequently Asked Questions
Q1: What is the precision level of your CNC machining?
A: Our multi-axis CNC machining centers achieve a repeatability of ±0.01mm, allowing us to produce highly complex geometries with minimal error.
Q2: How do you ensure the surface quality of sealing components?
A: We use specialized Outer Diameter (OD) grinding that ensures surface roughness as low as Ra 0.4μm and cylindricity within 0.005mm.
Q3: Is the Electrophoretic Coating resistant to corrosion?
A: Yes, our E-coat provides a salt spray resistance exceeding 800 hours according to ASTM B117 standards, ensuring long-term durability in harsh environments.
Q4: What kind of inspection methods do you use?
A: We employ non-contact infrared dimensional inspection for 100% of mission-critical components, checking tolerances as tight as ±0.003mm.
Q5: Do you provide material certifications?
A: Absolutely. Every batch comes with Material Test Certificates (MTC) including spectro analysis, and we follow PPAP and SPC quality protocols.
Q6: Can you process hardened steel?
A: Yes, our grinding and machining processes are capable of handling hardened steels with a hardness of up to HRC 62.
Haochu Machinery
