CT60-8A excavator, Cummins Engine. It adopts new cab with noise insulation seals. It adopts new seat, new armrest and safety lock, and the harness adopts waterproof plug-in unit, which improves the comfortableness and reliability and improves the operation environment. The new CPU has artificial intelligence and automatic diagnosis function, which can avoid long-time engine running and reduce fuel consumption. The boom joint adopts whole casting steel structure which improves the overall strength and strengthens the working devices. And the tension device is also improved.