M A C S

Past Projects

CONSTRUCTION

Project: Retube Condenser
Industry: Electricity Power Plant
Amount of Work:
  • ASTM A249 TP 316L tubes procurement
  • Remove & Re-install water box
  • Remove & Retube condenser tubes 17,128 ea.
  • Tube expansion 17,128 joints
  • Seal weld 17,128 joints
  • NDE and Hydrostatic Test Shell & Tubes
Project: Retube Closed Cycle Cooling Water (CCCW) Heat Exchanger
Industry: Electricity Power Plant
Amount of Work:
  • ASTM A249 TP 316L tubes procurement
  • Remove & Retube heat exchanger tubes 3,300 ea. x 2 sets
  • Tube expansion 3,300 joints x 2 sets
  • NDE and Hydrostatic Test Shell & Tubes
Project: Heat Exchanger TAM Extension & Bypass Heat Exchanger
Industry: Oil & Gas
Amount of Work:
  • EPC, piping route line, stress and hydraulic calculations.
  • Install scaffolding 12,000 m3
  • 5 new foundation for new heat exchangers.
  • Erection 8 new heat exchangers (max weight: 86 Ton, crane 700 Ton)
  • Fabricate and field erection piping (CS: 15,500 DB, P11: low alloy: 3000 DB)
  • Including painting, heat treatment, NDE, hydrotest and hot insulation.
Project: Install Boiler & Equipment for Biomass Power Plant 55MW
Industry: Biomass Power Plant
Amount of Work:
  • Install CFB Boiler: 2905  Tons
    • Drum: 45 Tons
    • Pressure Part
      • Carbon Steel: 9600 DB
      • Alloy (P11, P22, P91): 2400 DB
    • Structure: 1100 Tons
  • Install Equipment (ESP, Fan, etc.): 500 Tons
  • Fabrication & Install Stack: 200 Tons; Height 80 M
Project: Gas Turbine Air Inlet Chilling System
Client: Electric Power Plant
Amount of Work:
  • Pile & Foundation Work
  • Install Chiller package: 40 Tons
  • Install Cooling Tower 2 Sets
  • Remove & Install Air Inlet Filter
  • Piping
    • Carbon Steel: 1300 DB
    • Stainless Steel: 20 DB

MAINTENANCE

Project: Replace Lower Furnace of RB #2
Client: Pulp & Paper
Amount of Work:
  • Remove obstructed primary air duct and reinstall
  • Replace composite wall tubes (SA210-A1/SAN38) (965 DB or 386 Joints)
  • Weld Stainless Steel fin (400 m)
  • Modify beam supports of bottom floor tubes
Project: PWP1 Unit 02 Shut down 2023
Client: Oil & Gas
Amount of Work:
  • Fabrication and replace wall tube 84 tubes
  • Cut and replace superheater tube
  • Repair skirt and part of burner
  • Overhaul gear box
  • Repair piping system as per inspection report
  • Fabrication and replace liner of coal crusher
Project: Replace shell plate coal silo no. A B D & E
Client: Electricity Power Plant
Amount of Work:
  • Design and install temporary support
  • Plate Cutting & Rolling 75 tons
  • Remove and reinstall shell plate 75 tons
  • Repair roof top of coal silo
  • Equipment: Crane 120 Tons
  • Provide rope access technician for weld joint inspection

OTHER

Project: Overhaul ash handling and economizer inspection
Client: Electricity Power Plant
Amount of Work:
  • Inspect and maintenance bottom ash handling system of coal fire power plant 717 MW
  • Inspect and maintenance fly ash handling system
  • Cut and weld economizer tubes for inspection
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