Electrical · Mechanical · Automation

Precision engineering for industrial power & automation.

We design, build, and commission electrical and control systems for factories, utilities, and heavy industry across Indonesia — delivered on spec, on schedule, and to standard.

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Owner-led · in-house licensed engineers · no subcontracted design

Years in operation

Projects delivered

ISO

9001 · 45001

On-time handover

Medium-voltage switchgear line-up in a client plant electrical room

Duotone · navy → steel-blue · 24% overlay

HERO — FACILITY / EQUIPMENTWide shot: engineers at an MV switchgear line-up, plant floor context. Real, unstaged. No stock hardhats.

Representative clients Nabati GroupOLEOCHEM Gresik SemenCEMENT Nusantara PowerUTILITY Pakuwon EstatePROPERTY Wilmar FoodsF&B

What we do

Full-scope engineering, under one contract.

From single-line design to turnkey commissioning — one accountable team for electrical, mechanical, automation, and industrial works.

Electrical systems & power distribution

MV/LV switchgear, transformers, panel building, cabling, and load-flow design — engineered to SNI/IEC and commissioned to standard.

MV/LV switchgearPanel buildingLoad-flow studyProtection & relaySNI · IEC

Mechanical & piping

Rotating equipment, HVAC, and process piping — fabricated and installed to code.

Automation & controls

PLC/SCADA, instrumentation, and HMI — programmed, tuned, and documented.

Industrial contracting

Turnkey EPC for plant expansions, retrofits, and greenfield builds.

Testing & commissioning

Full FAT/SAT, protection relay testing, and as-built handover packs.

→ Every engagement is single-accountable: one project lead, one commissioning owner, one document set.

How we work

A commissioning-grade process, start to handover.

Four disciplined stages, each with a defined deliverable and sign-off — so procurement always knows exactly what they're getting and when.

Design

Single-line diagrams, load studies, and BoQ — reviewed against SNI/IEC before a cable is pulled.

Design pack & itemised BoQ

Build

In-house panel fabrication and site installation under a single project lead and HSE plan.

Progress & QA/QC reports

Commission

FAT/SAT, protection-relay testing, and loop checks — every result logged and witnessed.

FAT/SAT & relay test records

Handover

As-built drawings, O&M manuals, and operator training — a plant your team can actually run.

As-built + O&M + training

Proof point

Every project closes with a full commissioning pack.

FAT/SAT reports · protection-relay settings · as-built single-lines · O&M manuals · spare-parts list — indexed and audit-ready.

See a sample pack

Engineers reviewing electrical drawings and switchgear at the workshop

Duotone · warm-neutral · candid

ABOUT — TEAM AT WORKFounder + engineers over drawings on the workshop floor. Human, unstaged.

SINCE 2008 · SURABAYAOwner-led, standards-driven engineering.

Who we are

A team that treats every drawing like it will be audited.

Arkatek Nusantara is an owner-led electrical and industrial engineering firm based in Surabaya. We built our reputation on the unglamorous things: clean single-lines, documented commissioning, and equipment that runs years after handover.

In-house licensed engineers — no subcontracted design.
ISO 9001 & ISO 45001 certified processes.
Every project ships a full as-built & commissioning pack.

Selected work

Delivered on spec — with the numbers to show it.

A sample of recent electrical and automation projects across manufacturing and utilities.

Newly installed 20 kV switchgear line-up

POWER DISTRIBUTION

MV SWITCHGEAR ROOMNew 20 kV line-up, cable trays, labelled.

Palm-oil mill MV upgrade

20 kV switchgear replacement and load-flow re-design for a 3.2 MW mill, executed inside a fixed 9-day shutdown.

0 d

Shutdown

0 MW

Load served

Incidents

Unified SCADA control room with dashboards

AUTOMATION

SCADA CONTROL ROOMUnified HMI + OEE dashboards, 4 lines.

Packaging line SCADA

PLC/SCADA retrofit across 4 lines with unified HMI and live OEE dashboards for a consumer-goods plant.

+0%

OEE gain

Lines

0 wk

Delivery

Electrical distribution and controls in a cold-storage facility

EPC · CONTRACTING

COLD-STORAGE PLANTTurnkey electrical & controls, greenfield.

Cold-storage greenfield

Turnkey electrical & controls for a new 4,000-pallet cold-storage facility — design through commissioning.

Pallets

Uptime yr-1

On time

Handover

Certified & accountable

Credentials that pass procurement review.

QualityISO 9001:2015Cert · reg. QMS-2231

SafetyISO 45001:2018OH&S · reg. OHS-0417

LicenseSBU · AKLIGrade K3 · active

Response24/7 serviceSLA < 4 hr on-site

"Arkatek re-engineered our MV distribution during a fixed shutdown window and handed over ahead of schedule. Zero unplanned downtime since."

BS Budi SantosoPlant Manager · Wilmar Foods (Gresik)

0 unplanned downtime · 8 months since handover

Leadership

Engineers you'll actually talk to.

No account managers between you and the people doing the work.

Ir. Ardhi Wibowo

Founder · Lead Electrical Eng.

25 yr · MV/LV · Reg. Eng.

Rani Kusuma, S.T.

Automation & Controls Lead

PLC / SCADA · TÜV FS Eng.

Denny Pratama

Project & Commissioning

FAT/SAT · 60+ handovers

Sisca Halim

HSE & Quality

ISO 45001 · Ahli K3

Have a project on the drawing board?

Send us the scope — we'll come back with a clear, itemised proposal, usually within 2 business days.

Request a quote or WhatsApp +62 812 3000 900