Equipment Supply and Solution
Trusted, Certified & Application-Ready Engineering Equipment
Hasilwan Engineering Sdn Bhd (HSWE), formed in 2018 provides engineering equipment supply and services across Oil & Gas, Marine, Renewable Energy, and Electrical Power sectors. Acting as a reliable one-stop equipment supplier and solution provider, we support customers with critical equipment selection and deployment for demanding operating environments from hazardous zones to utility-grade MV networks.
Application Fit & Operational Reliability
Equipment selection and configuration based on operating duty, safety classification, and performance requirements to ensure dependable operation in real-world conditions.
Standards & Certification Alignment
Solutions are matched to relevant certification needs such as Marine Classification standards, IECEx/ATEX hazardous area requirements, and IEC/ANSI compliance for electrical equipment.
Delivery Readiness & Lifecycle Support
We align supply scope with commissioning needs, spares strategy, and maintainability so equipment is deployable, serviceable, and scalable over time.




What We Deliver
Generator / Firepump Engine Mechanical Starting Systems (Safe & Hazardous Zones)For critical engines where reliable starting is essential under safety-classified conditions.
For critical engines where reliable starting is essential under safety-classified conditions.
- Hydraulic starting
- Pneumatic starting
- Nitrogen starting
- Spring starting
- Compliance aligned to Marine Classification Society standards: BV / ABS / DNV / LR / CCS
Transformers (Industrial & Utility Applications)For MV distribution networks requiring dependable step-down transformation and stable long-term performance.
For MV distribution networks requiring dependable step-down transformation and stable long-term performance.
Oil-immersed Distribution Transformers
- 25 kVA to 10,000 kVA
- Rated voltage up to 36 kV
Pad-mounted Transformers
- 75 to 5,040 kVA
- Rated voltage up to 34.5 kV
Pole-mounted Transformers
For industrial processes with recoverable waste heat.
- 25 to 500 kVA
- Rated voltage up to 34.5 kV
Tap Changer & Transformer Oil Options
- Tap Changer: 5-position, Multi-tap (pad-mounted), 3 / 5 / 7 / 9 tap positions (pole-mounted)
- Transformer Oil: mineral, natural ester, synthetic ester
Standard Requirements
Designed to meet standard requirements and can be produced to IEC / IEEE / ANSI and customer-specified standards
Support Services Available
- Testing & commissioning
- Repair services
- Oil checks
- Periodic maintenance
Engine Air Shut Off Valve (ASOV)For diesel engine protection against hazardous overspeed events.
For diesel engine protection against hazardous overspeed events.
- Automatic engine shutdown during overspeeding caused by ingestion of flammable gas/vapour
- IECEx and ATEX range available, including fail-safe model options
Medium Voltage Switchgears (Toshiba TTDA Partnership)For utility and industrial MV substation and distribution applications.
For utility and industrial MV substation and distribution applications.
- VCB range from 6.6kV to 36kV for AIS / SIS / GIS
- Compact Substation range 12kV to 24kV, 500kVA to 3000kVA
- Type-tested and certified by CESI / ASTA / KEMA, compliant with IEC and ANSI standards
- SGP (Sijil Guna Pakai) model options available for the utility market
The Market We Serve
Engineering equipment supply delivers the most value where reliability, safety classification, and standards compliance are critical.
Oil & Gas & Hazardous Environments
Engine safety protection and hazardous-area readiness (e.g., ASOV with IECEx/ATEX options)
Marine & Offshore Operations
Starting systems aligned to Marine Classification requirements for mission-critical engines
Electrical Power & Utility Networks
MV switchgear and substation equipment for industrial/utility distribution and expansion needs
Renewable Energy & Energy Infrastructure Projects
Supporting equipment supply packages for modern energy infrastructure portfolios (as part of HSWE’s stated market footprint)
The Market We Serve
Engineering equipment supply delivers the most value where reliability, safety classification, and standards compliance are critical.
Compliance & Standards
Hasilwan’s equipment supply and solutions align with the standards and certifications referenced in the current section, including:
Marine Classification Society Standards
BV / ABS / DNV / LR / CCS (starting systems)
IECEx & ATEX
Ranges for hazardous area applications (ASOV)
IEC & ANSI Compliance
For MV equipment
CESI (Italy), ASTA (Australia), KEMA (Netherlands)
Independent type testing / certification
SGP (Sijil Guna Pakai) Model
Available for utility market requirements
Project Highlights
National Stadium Bukit Jalil
FELCRA Upgrading
Engage With Our Team
Discuss your equipment requirements, hazard-zone engine systems, ASOV protection, or MV switchgear supply with our engineering specialists.