Hebei Baoding Industrial Manufacturing Base
Kunyue Machinery operates a full-cycle slurry pump manufacturing plant covering 20,000 square meters. By integrating our own vacuum mold foundry with high-precision computer-controlled machine centers, we maintain rigorous control over chemistry, microstructure, dimensional tolerances, and final hydraulic performance.
- ✓ Spectrometer Quality: Direct reading chemical spectrum analyzer for molten heat verification.
- ✓ Heat Treatment: Automated sub-critical quenching and tempering furnaces achieving 60-64 HRC.
- ✓ Machining Centers: Heavy vertical boring mills up to 3,500 mm diameter and CNC gantry mills.
- ✓ Dynamic Balancing: Hard-bearing ISO G2.5 dynamic balancing stations for all impellers.
Inspection Test Plan (ITP) & Export Documentation
Every export order is accompanied by our verified Inspection Certificate Package (EN 10204 Type 3.1 Compliant):
Confirms exact Cr, C, Mo, Ni, Mn percentages meeting ASTM A532 Class III Type A specs.
Calibrated Rockwell C hardness readings sampled across 5 points of each wear component.
Pump casing pressurized to 1.5x maximum allowable working pressure for 30 minutes without leakage.
Real test bay water performance data certifying Flow, Total Head, Shaft Power, and Efficiency.
Residual unbalance values logged per ISO 1940-1 to eliminate mechanical vibration.
Coordinate CMM reports verifying key fit tolerances, shaft fits, and flange bolt circles.