Engineering Services
Integrated Engineering
Trusted by
State Railway of Thailand (SRT)
Sahawatthanakit (1988) provides full-cycle engineering services — installation and maintenance of plant electrical systems, control panels/PLC/VFD, structural renovation, and IoT/monitoring — per IEC 60204-1, IEC 61800-5-1, and Thai EIT standards, for industrial plants and government agencies (with State Railway of Thailand project experience). Serving Bangkok and surrounding provinces, with project work nationwide — FAT/SAT testing team and 1-2 year workmanship warranty. Describe your scope in chat and our engineers will assess and quote.
Standards & Certifications
Industrial engineering, IoT, control systems, and electrical infrastructure designed per IEC 60204-1 (machinery safety), IEC 61800-5-1 (VFD/drive safety), ISO 13849-1 (safety-related parts, PL d/e), and NFPA 70 (US NEC) for MNC clients. Thai plant electrical work follows EIT 022000-63 (Thai electrical installation standard) + IEC 60364. PLC / HMI / SCADA from Siemens / Allen-Bradley / Mitsubishi per project spec. Energy monitoring via IEC 61557 + ISO 50001 (Energy Management) for ESG reporting. Commissioning covers Factory Acceptance Test (FAT) + Site Acceptance Test (SAT) + 1-2 year warranty.
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Related case studies & insights
IoT Monitoring + Electrical Engineering for State Railway of Thailand Locomotive Depots
Case study: design + installation of IoT sensor network + electrical control panels + remote monitoring for State Railway of Thailand (SRT) maintenance depots — PLC, SCADA, NB-IoT gateway.
✓ 120+ IoT sensors deployed — vibration, temperature, current, ambient — across 3 maintenance depot locations
Selecting an Industrial Process Pump + Preventing Cavitation (NPSH): Centrifugal vs Positive Displacement, BEP, and VFD Energy Savings per ANSI/HI–ISO for Thai Plants
Buyer's guide to industrial process pumps: differentiate Centrifugal vs Positive Displacement → calculate NPSHa to prevent cavitation → operate within BEP (70–120%) → cut electricity with VFD (Affinity Laws) → supplier checklist + ANSI/HI–ISO 13709/API 610/API 682 standards for plants in Thailand.
Industrial Water Treatment: Boiler Feedwater, Cooling Water, RO/Process Water, and Wastewater Compliance — Selection + Thai Effluent/ASME/WHO Standards for Plants
Buyer's guide to industrial water treatment: separate boiler feedwater–cooling water–process/RO water–wastewater streams → choose the right treatment process for each stream → worked cycles-of-concentration example → contractor checklist + ASME/ABMA/WHO/Thai DIW/PCD standards for factories in Thailand.
What Is a Designated Factory in Thailand — 1,175 kVA Threshold, 8-Step Energy Report + ISO 50001 (2026 Guide)
Check if your factory/building is a 'designated facility' (1,000 kW · 1,175 kVA · 20 million MJ/yr), what the Energy Conservation Act requires — energy manager + 8-step report to DEDE by March + pinai fine up to THB 200,000 + ISO 50001 + energy measures ranked by ROI.