Major Overhaul List-ROYALTURBO Machinery (Zhejiang) Co., Ltd.

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EQUIPMENT AND CASES

Complete Machine Case

Major Overhaul Case

RoyalTurbo Engineering (Hangzhou) Co., Ltd.

Atlas GT063

Each blade on the near-inlet side of the first-stage impeller shows similar fatigue-induced, dark-colored cracks approximately 10 mm long.

U.S.-made GE Compressor SRL601

The unit control system experienced extremely low oil pressure, excessively high bearing temperatures, and elevated rotor vibration levels—leading to severe wear in the unit's transmission components, bearings, oil-gas seals, and other critical parts. Additionally, noticeable wear was observed on the impeller's pressure angle.

Ingersoll-Rand 3MSGEP+25/15

Control System Upgrade

Atlas 3P-10/6/6/6

Starting in May 2024, the thrust face temperature of the booster unit’s third-stage thrust bearing has been steadily rising, reaching as high as 104°C by June 2025. Additionally, surge phenomena have occurred intermittently over the past two years.

Atlas GT123L3K1

At the beginning of 2025, the manufacturer discovered similar fatigue-induced dark cracks, each approximately 10 mm long, on the near-inlet side of every blade in the first-stage impeller.

Ingersoll-Rand 4R2MSGE-16RC/15

Axis vibrations at stages 1, 2 and 4 were abnormally high, reaching up to 36 microns. Meanwhile, the oil temperature soared to 65.7°C (exceeding the normal range).

Hitachi Reciprocating Compressor POB-CH

On May 21, 2025, after a routine shutdown, the system experienced an overload trip upon restart on May 23. The motor failed to rotate. Upon inspecting the starter cabinet, it was discovered that the thyristor had burned out. After replacing the thyristor