Excavator Track Roller 21M-30-00100 21M-30-00101 for Komatsu PC600 Undercarriage

Why This Roller Performs Well on PC600 Machines

1. Durable alloy steel construction — Built with premium materials and precise heat treatment processes to handle the heavy weight and abrasive conditions typical of 60-ton-class excavators.

2. Induction-hardened tread surface — Achieves consistent hardness for resistance to abrasion and impact, helping maintain roundness longer than basic alternatives.

3. Precision machining — Tight tolerances on tread diameter, flange spacing, and bore alignment ensure seamless installation and proper track alignment without additional adjustments.

4. Reliable in real applications — Many operators in quarries and civil projects note noticeably reduced replacement frequency compared to lower-grade options, with service life varying based on ground conditions and maintenance.

Benefits for PC600 Operators & Fleets

Enhanced track stability — Reduces side-to-side play and helps prevent accelerated wear on adjacent components like chains and idlers.

Cost-effective alternative — Typically 40–60% less expensive than genuine Komatsu parts while offering dependable performance in standard to heavy-duty conditions.

Straightforward replacement — Bolt-on design allows experienced technicians to swap rollers efficiently.

Worldwide shipping from our factory in China — Secure packaging and reliable delivery options for international customers.

Maintenance Checklist for PC600 Operators

Clear the Debris: Heavy clay or rocks stuck in the undercarriage can stall a roller, leading to rapid flat-spotting. Clean the frames daily.

Visual Inspection: Check for "oil misting" on the roller shell. This is an early sign of seal failure—replacing the roller now saves the track link later.

Track Tension: Ensure the PC600 track tension is adjusted to the specific ground conditions to avoid excessive upward pressure on the roller bushings.

FAQ

Q: Will this fit PC600-8 or earlier PC600 models?

A: Yes — same mounting dimensions and flange configuration across the PC600 series.

Q: How many track rollers per machine?

A: Typically 8–9 per side (16–18 total), depending on exact variant and track frame setup.

Q: Do you supply matched undercarriage components for PC600?

A: Yes — track chains, idlers, sprockets, carrier rollers, and shoes are available as coordinated sets.