Agung Jelantik

Agung Jelantik Power Generation, Turbomachinery & Rotating Equipment Services

Professional and Skilled (work performance) in workshop repair & Fabrication, construction, installation & erection, on-site repair and field Services on rotating equipment such as: Gas Turbine, Steam Turbine, Centrifugal Pump, Centrifugal Compressor and other Turbo-machinery Parts & Components.

30++ Years experiences.

01/03/2026

Beyond Services
Beyond Projects

01/03/2026

At PT JAPA INDOTAMA,
we deliver more than ex*****on: we build long-term technical partnerships that ensure reliability, performance and lifecycle value for steam turbines, gas turbine, compressors, pumps and others rotating equipment's assets.

With decades of combined field experience, our focus is clear: engineering excellence, measurable results and sustainable industrial growth.

PT JAPA INDOTAMA
Trusted Partner for Reliable Performance.

A Deeper Look Into Onsite CRI Ex*****onPrecision is not just a goal, but it's a discipline.At PT JAPA INDOTAMA, our comm...
22/02/2026

A Deeper Look Into Onsite CRI Ex*****on

Precision is not just a goal, but it's a discipline.
At PT JAPA INDOTAMA, our commitment to delivering high-quality engineering services takes center stage through our Comprehensive Rotor Inspection (CRI) carried out directly at the client’s site.

In addition, this CRI process is essential not only for operating rotors, but also for legacy spare rotors that have been stored or unused for long periods. Before installation, these spare rotors must undergo thorough inspection to validate their integrity, dimensional accuracy, and readiness for safe operation. Without proper CRI, deploying a spare rotor carries substantial technical and operational risks.

This onsite ex*****on allows us to dismantle, inspect, measure, and analyze every critical rotor component without transporting the equipment to a workshop. By applying advanced metrology, NDT methods and precision balancing techniques, we ensure each critical parameter meets the strictest operational standards.
What makes our CRI approach exceptional?

=> Minimal Downtime: No need for lengthy logistical processes or rotor transportation.
=> Accuracy at Scale: Our inspection tools and methodology are aligned with OEM-level requirements.
=> Real-Time Engineering Decisions: Findings and corrective actions are executed immediately onsite.
=> Proven Expertise: Delivered by experienced engineers with specialized competencies in turbine, generator and other rotating assets.

The result?
A reliable, optimized rotor system ready to operate with enhanced performance, safety and lifecycle value.

As industries move toward smarter and more efficient maintenance philosophies, onsite CRI is becoming a strategic enabler and transforming inspection work into measurable operational outcomes.

PT JAPA INDOTAMA continues to elevate engineering excellence.

In the power generation industry, re-blading is not merely a blade replacement; it is a high-precision activity that res...
22/02/2026

In the power generation industry, re-blading is not merely a blade replacement; it is a high-precision activity that restores turbine performance, efficiency and long-term reliability. This is especially critical for Geothermal Steam Turbines, where steam chemistry, corrosion, erosion and silica scaling create far more demanding operating conditions.

PT JAPA INDOTAMA delivers comprehensive Steam Turbine Re-Blading services covering:
- Controlled dismantling and blade removal procedures
- Root inspection (T-root / Fir-tree) using advanced NDT methods
- Cleaning and surface preparation from silica deposits and corrosion typical in geothermal units
- Dimensional verification and tolerance control
- New blade installation with precise clearance and tip setting
- Peening, locking, and final torquing in accordance with OEM standards
- Rotor run-out checking, dynamic balancing and final alignment

We fully understand that in Geothermal Steam Turbines, the challenges are not only mechanical but also include:
- Erosion and corrosion due to steam carry-over
- Heavy scaling on blades and diaphragms
- Thermal deformation caused by high moisture content and temperature variations

With experienced manpower, structured work procedures and precision field equipment, PT JAPA INDOTAMA ensures every re-blading activity is executed on-spec, within tolerance and on schedule.

For us, successful re-blading means more than installing new blades; it means restoring turbine performance, improving efficiency and securing long-term operational reliability.

PT JAPA INDOTAMA – Your Trusted Partner for Steam & Geothermal Turbine Services.

A Moment of Pride for PT JAPA INDOTAMA.We are honored to receive a Piagam Penghargaan (Certificate of Appreciation) from...
03/12/2025

A Moment of Pride for PT JAPA INDOTAMA.

We are honored to receive a Piagam Penghargaan (Certificate of Appreciation) from PLTA Rajamandala 47 MW for successfully achieving Zero Accident during the Annual Inspection (AI) activities held from 15 July to 31 August 2025.
This award reflects our unwavering commitment to Safety Excellence, operational discipline, and professional ex*****on in every task entrusted to us. Delivering high-quality services while ensuring the safety of our team and stakeholders is not just a standard & it is part of our core values.

A special appreciation goes to our dedicated engineers, technicians, and onsite teams who consistently uphold safety protocols and demonstrate exceptional work ethics. Your commitment makes achievements like this possible.

With this milestone, PT JAPA INDOTAMA reaffirms its position as a trusted partner in the power generation and industrial services sector, continuously striving for zero harm, zero compromise, and zero accident in every project.
Thank you PLTA Rajamandala and stakeholders for the trust and collaboration.

Onwards to even higher standards of Quality, Reliability, and Safety Excellence.

Agung De Jelantik
General Manager
PT Japa Indotama
[email protected]

A Deeper Look Into Onsite CRI Ex*****onPrecision is not just a goal, but it's a discipline. At PT JAPA INDOTAMA, our com...
03/12/2025

A Deeper Look Into Onsite CRI Ex*****on

Precision is not just a goal, but it's a discipline.
At PT JAPA INDOTAMA, our commitment to delivering high-quality engineering services takes center stage through our Comprehensive Rotor Inspection (CRI) carried out directly at the client’s site.

In addition, this CRI process is essential not only for operating rotors, but also for legacy spare rotors that have been stored or unused for long periods. Before installation, these spare rotors must undergo thorough inspection to validate their integrity, dimensional accuracy, and readiness for safe operation. Without proper CRI, deploying a spare rotor carries substantial technical and operational risks.

This onsite ex*****on allows us to dismantle, inspect, measure, and analyze every critical rotor component without transporting the equipment to a workshop. By applying advanced metrology, NDT methods and precision balancing techniques, we ensure each critical parameter meets the strictest operational standards.
What makes our CRI approach exceptional?

=> Minimal Downtime: No need for lengthy logistical processes or rotor transportation.
=> Accuracy at Scale: Our inspection tools and methodology are aligned with OEM-level requirements.
=> Real-Time Engineering Decisions: Findings and corrective actions are executed immediately onsite.
=> Proven Expertise: Delivered by experienced engineers with specialized competencies in turbine, generator and other rotating assets.

The result?
A reliable, optimized rotor system ready to operate with enhanced performance, safety and lifecycle value.
As industries move toward smarter and more efficient maintenance philosophies, onsite CRI is becoming a strategic enabler and transforming inspection work into measurable operational outcomes.
PT JAPA INDOTAMA continues to elevate engineering excellence.

Agung De Jelantik
General Manager
PT Japa Indotama
[email protected]

A Deep Dive Into Onsite Machining.In the world of rotating equipment and heavy industrial assets, precision is not a lux...
02/12/2025

A Deep Dive Into Onsite Machining.
In the world of rotating equipment and heavy industrial assets, precision is not a luxury, but it’s a necessity.

At PT JAPA INDOTAMA, we take pride in delivering high-quality, professional onsite machining services that eliminate the need for lengthy dismantling, costly logistics, and extended downtime.
Armed with our Mobile Lathe Machine and supported by experienced engineers and machinists, we are capable of performing rotor machining directly at the site with accuracy, control and uncompromising surface quality. This capability allows us to restore critical equipment to optimal condition while ensuring the alignment, concentricity, and dimensional tolerances meet or exceed engineering standards.

From power plants and petrochemical facilities to geothermal sites and industrial sectors, our onsite machining solutions are designed to be efficient, reliable and engineered for excellence. With every project, we bring precision to the field and transforming challenges into measurable results.

When mobility meets machining precision, performance follows.

Onsite machining is not just what we do, but it's how we redefine service efficiency and quality.

Agung Jelantik
General Manager
PT Japa Indotama
[email protected]

At JAPA: Energy Services, we are more than just an industrial service provider, we are your trusted partner in powering ...
08/11/2025

At JAPA: Energy Services, we are more than just an industrial service provider, we are your trusted partner in powering progress.

We bring experience, innovation and commitment to deliver high-quality solutions across the energy and industrial sectors.

From geothermal and power generation to oil & gas and manufacturing, our mission is to maximize efficiency, reliability and performance in every project we handle.

We specialize in installation, commissioning, maintenance and technical services, ensuring that every system we touch operates at its peak.

Driven by passion and precision, JAPA Field Services combines technical expertise with a deep understanding of energy challenges; providing smart, safe and sustainable solutions tailored to every client’s needs.

With every project, we move closer to our vision:
Empowering industries. Advancing sustainability. Energizing the future.

10/10/2025

Our First Year in Turbomachinery — Building Trust, Capability, and Momentum

As we look back on our first year of business and development, we take pride in how far we’ve come in establishing PT JAPA INDOTAMA as a trusted partner in Turbomachinery Services.

From the beginning, our mission has been clear to deliver reliable, precise, and value-driven solutions across the lifecycle of rotating equipment. Throughout this year, our team has been actively involved in field service works, component inspections, overhauls, and performance improvement projects for both Steam Turbines and Generators.
Each challenge has strengthened our technical capability and deepened our collaboration with clients and partners who share our commitment to operational excellence.

The journey is just beginning and this first year has laid the foundation for continuous growth, innovation, and contribution to Indonesia’s industrial energy sector.

03/10/2025

*Turbine Inspection for Quality and Performance Enhancement*

Turbine inspection is a critical activity that ensures the long-term reliability, efficiency, and safety of rotating equipment. A high-quality inspection process is not limited to identifying visible damages but also involves a systematic evaluation of mechanical integrity, material condition, alignment accuracy, and sealing effectiveness.

By implementing meticulous inspection standards, potential issues such as erosion, corrosion, cracking, and dimensional deviations can be detected at an early stage. This proactive approach minimizes the risk of unplanned downtime, reduces maintenance costs, and safeguards the turbine’s performance under demanding operational conditions.

Focusing on quality during every inspection stage—ranging from non-destructive testing, dimensional measurement, to surface roughness verification—provides a strong foundation for corrective actions and performance optimization. Each finding is documented and analyzed to establish clear recommendations that enhance the turbine’s reliability and extend its operational lifespan.

Ultimately, turbine inspection is not merely a maintenance requirement but a strategic investment. A quality-driven inspection philosophy ensures that the turbine operates at peak efficiency, delivering consistent output while maintaining the highest standards of safety and durability.

24/09/2025

We are proud to share the story of our team at PT JAPA INDOTAMA in delivering trusted turbomachinery services.

With strong expertise in installation, overhaul, repair, and inspection, we remain committed to quality, reliability, and customer satisfaction — keeping turbines and rotating equipment performing at their best.

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