PC600-6/EX550/ZX520 Track roller manufactures-CQC TRACK/heavy duty excavator spare part supplier in China

It looks like you’re asking whether the ZX520LC track roller is compatible with a Komatsu PC600-6 excavator undercarriage.

Key Considerations for Compatibility:

1. Model Specifications:
   • ZX520LC is typically an excavator model from Lonking (Chinese brand), while PC600-6 is a Komatsu machine.
   • Their undercarriage systems may differ in dimensions, bolt patterns, and load ratings.
2. Track Roller Interchangeability:
   • Not a direct fit in most cases—different brands have unique engineering designs.
   • Requires checking exact measurements (bore size, flange width, mounting style).
3. Potential Workarounds:
   • Some aftermarket manufacturers produce adaptable rollers that fit multiple models.
   • You may need to verify with CQC TRACK  if they offer a cross-compatible version.

Recommended Steps:

✔ Check OEM Part Numbers:

• Compare Komatsu PC600-6’s original roller (e.g., Komatsu part # 21M3200100) with ZX520LC specs.
  ✔ Measure Critical Dimensions:
• Shaft diameter, roller width, bolt spacing, and sealing type.
  ✔ Consult CQC TRACK or Supplier:
• Ask if they have a universal/alternative roller that fits both models.

Alternative Solution:

If  CQC TRACK doesn’t list this specific cross-compatibility, you might need:

• A custom-modified roller (if available).
• A dedicated PC600-6 aftermarket roller (better reliability).