Rotating Equipment Services

With the integration of our wholly owned subsidiary Wing Wah Pte Ltd in March 1998 as our Rotating Equipment arm, we bring more than 20 years of combined experience in delivering comprehensive solutions to our clients and helping them to improve the reliability and performance of their rotating equipment.

Our dedicated team of experienced and qualified personnel are trained with In-house Rotating Equipment fitting training and qualified with WSQ certification to achieve the highest level of safety compliance, consistency, in quality services, reliability and ability to meet our customers’ needs and requirements.

Our Rotating Equipment Services Include:

Field Services

  • Machinery removal, installation & alignment
  • On-site repair: bearing replacement, Mechanical seal replacement, Fin fan overhauling
  • Condition Monitoring
  • Equipment Maintenance
  • Agitator overhaul
  • New Rotating Equipment installation (Pumps, Fans, Blowers etc.)
  • Skid levelling and alignment


Workshop Services

  • Retrofitting & Overhauling of Various Rotating Equipment such as Pumps (Compressors, Gearboxes, Blowers, Turbines, Fans, Mixers)
  • Dynamic Balancing up to G 1.0
  • Equipment Upgrading & Modification
  • Mechanical Seal Flush Plan Modification
  • Single to Double Mechanical Seal Upgrade
  • Overhauling of Rotating Equipment
  • Failure analysis with detailed inspection, measurement & test reports to provide recommendations and findings for all internal parts:
    – Shaft straightness checks,
    – Concentricity, Surface Flatness, Shaft to Bore and Shaft to Face Checks
    – Non- Destructive Test (using dye penetrant)
    – Laser Alignment
    – Dial Gauge Alignment
    – Balancing
    – Welding and Machining Services
    – Hydrostatic or N2 Pressure Test


Preventive Maintenance

Our Rotating Equipment personnel provides early defect prediction to optimize outage processes, minimize downtime and reduce unplanned maintenance cost.

Manpower Supply

Should our clients require competent personnel, we are able to provide manpower of various skill levels to satisfy to their requirements.

OEM Representation

Mun Siong is the sole distributor of STB in Singapore for the supply and repair of mechanical seals, as well as provide full diagnosis, damage report and quality checks. STB designs and manufactures products made in Germany promising the best quality and reliability. STB also offers a shorter lead time as compared with other OEMs and the products are designed to replace existing OEM seals.

24-Hour Emergency

We provide round-the-clock support and emergency repair services for any of your pumps, blowers, gearboxes, and air compressors needs.


Rotating Equipment Workshop
348 Sq. M (10.5m Clearance with 10-ton Gantry Crane)


  • Lathe Machines
  • Universal Milling Machines
  • Radial Drilling Machine
  • Balancing Machines
  • Laser Alignment Kit
  • Belt tensioning kits