In-situ machining of bearing seat & flatness inspection

During the slew bearing replacement, before the installation of new bearing, the flatness and surface finishing of bearing seat area is of crucial importance. Poor bearing seat flatness and surface smoothness will have an adverse effect on the bearing life.

Achieving flatness within 0.2mm and surface roughness within Ra3.2 is common. But these values depend on the manufacturer’s recommendations.

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Tooth contact pattern/area Inspection at slew bearings

During the replacement of slew bearing (unloader cranes), below inspections are crucial

  • backlash (usually 0.3 to 0.4mm depending to the manufacturer) and
  • tooth contact pattern/area.

Checking contact pattern/area shows how the bearing and pinion are engaging. Fine tuning adjustment is to be made based on the tooth pattern findings.

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Reversed-engineered/customised design for various crane parts

To improve safety, availability & reliability of port equipment and to improve productivity are of the utmost importance for terminal operators.  We assist equipment owners to identify which system shall be upgraded to improve functionality and safety.

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Retrofit QC Trim-list-skew system to electric

It is always good for a maintenance team to get crane functioning systems upgraded from hydraulic to electric. We have a series of experience in converting hydraulic Trim-List-Skew systems to electric.

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Crane Control System Upgrading

We strongly encourage equipment owners to upgrade the control systems before the existing systems becomes obsolete. We are specialised in below control system upgrades;

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