Company Profile Founded in 1975 in Surabaya, Indonesia, PT. Sentral Teknik Surya (called as STS) has demonstrated a long and deep involvement in steel fabrication, steel construction, design and manufacturing tanks and vessels, mechanical installation, and industrial equipment’s design, fabrication, and installation. With more than thirty five years experience in different types of industry and supported by its private workshop, technical tools, and skilled and certified resources, STS always provides strong commitment for the project success. We put customer satisfaction and project success as our main goal. Services We have main activities in design and manufacture tanks and vessels, mechanical installation, steel construction and steel fabrication, and industrial equipments’ design, fabrication, and installation. We provide services for from scratch design & fabrication, initial installation & erection, repair, and modification works. Details of our services are as follow: Design and Manufacture Tanks & Vessels – Stainless steel and carbon steel Any type and size of storage tanks (stainless steel and carbon steel) for oil, petroleum, water, and chemical - Standard API 650 ; Dome roof Floating roof Fixed cone roof Vertical cylinder – grounded Vertical cylinder – with legs Horizontal cylinder – ellipsoidal heads Horizontal cylinder – flat heads Horizontal cylinder - underground *) We have experience in manufacturing a storage tank dia. 60 meters Any type of pressurized vessels/ tanks (stainless steel and carbon steel), stamped by Authorized Government Institution/ Disnaker ; Vertical cylinder Horizontal cylinder Any type of pressurized and non-pressurized processing tanks or reactors (stainless steel and carbon steel) ; Vertical cylinder Horizontal cylinder Jacketed reactor Double-jacketed reactor Mixing tank Separator Any type of pressurized filter tanks (stainless steel and carbon steel) include the media ; Carbon filter Sand filter Ion filter Internal rubber-lined filter Filter with backwash system Modification & repair: resizing, lining, inlet-outlet change, repainting, plate-replacement, etc Steel and Stainless Steel Structures & Construction: Steel framed building; warehouse and plant, filling station - Standard AWS D1.1 Steel structure; telecommunication tower, lighting tower, girder crane Platform for factory, pipe rack, bridge, hangar, and docks Mechanical Installation and Industrial Equipments: Pipe line and piping installation works - Standard ANSI/ ASME Erection of processing equipment and industrial equipment : Silo Agitator Bulk hopper-mobile type Fixed hopper Ducting Chimney/ stack Belt and screw conveyor Air pre-filter (including frame & screen fabrication and installation) Hydraulic press machine (up to 300 tons) Civil works: Tank foundation include pilling, ban-wall Warehouse and building Aluminium frame and partition Contact our marketing department for your detail inquiry or if you have any inquiry of service not stated above. Quality Control As part of our commitment to provide the best value to customers, we always set a strict quality control to our services. We have set a quality checklist to our services: Material/ Raw Material: Visual check Dimensional check Hardness test (if required) Strength test (if required) Material composition test (if required) Production Process: Visual check Dimensional check Welding procedure Welder qualification Non-destructive test (NDT): Radiography, Dye-penetrant, Ultrasonic (which is applicable) Hydro-pressure test and hydrostatic/ leakage test Final Testing: Coating thickness check Calibration, etc. This quality control checklist refers to the applicable technical standard, such as API 650 for storage tank, ASME for pressure vessel, ASME/ ANSI for piping, and AWS D1.1 for steel construction. Certification In order to maintain our high-quality standard, we set the company as registered fabricator for BP-MIGAS and Disnaker. The periodically-updated registration has pushed ourselves to be always following the most updated standard and procedures requirement.