This is the heavy end of the 550 family: 28.6 kg of wear material for 55 to 65 ton excavators that spend their shift in shot rock and heavy overburden. The extra mass is spread across the wear face rather than added to the point, which keeps penetration reasonable.
We run a longer temper hold on this size because thick sections cool unevenly and that is where cracking starts on heavy teeth.
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| Part number | 4T5502 |
| Machine class | 55-65 ton excavator |
| Tooth type | Heavy duty rock |
| Material | Alloy steel, heat treated |
| Hardness | HRC 50-55 |
| Unit weight | 28.6 kg |
| Pin bore | 38 mm |
| 4T5502 / 4T5501 | Heavy and standard tips |
| 6Y5230 / 9W4551 | 550 class alternatives |
| 4T5502HD / 4T5502RC | Hardness and profile variants |