Case Studies
Operational Walkthrough

PT Trias Sentosa

Flexible Packaging Film ManufacturingIDX: TRST

Sidoarjo, East Java, IndonesiaEst. 1979
MT Annual Capacity
137K
BOPP Lines
8+
Workforce
1,200
Global Customers
400+

Indonesia's largest flexible packaging film manufacturer — BOPP, BOPET, and CPP films serving 400+ customers worldwide. Here's how OpexMX would maintain their extrusion lines, slitting machines, and coating equipment — keeping 137,000 MT of annual film production running.

Production Facility
Waru Plant
Jl. Raya Waru 1B, Sidoarjo, East Java
BOPP film extrusion, BOPET film production, CPP film lines, converting & extrusion coating

The Challenge

1

Maintaining continuous extrusion lines that run 24/7 with minimal tolerance for film thickness deviation

2

Managing spare parts for specialized European and Japanese extrusion machinery with long lead times

3

Coordinating maintenance schedules across BOPP, BOPET, and CPP lines without reducing total output

4

Tracking roll-based production assets (slitters, rewinders, metallizers) with interdependent downtime windows

5

Ensuring film quality standards (optical clarity, gauge uniformity, surface treatment) through calibrated equipment maintenance

6

Moving from reactive breakdown maintenance to a preventive and predictive approach across aging and new lines

How OpexMX Handles It

Asset Hierarchy Management

Full asset hierarchy from film line (BOPP Line 1–8, BOPET Line 1–2, CPP Lines) down to individual extruder screws, chill rolls, and Winder stations — with QR/NFC tagging for fast field identification.

Smart Work Order Assignment

Skill-based assignment matching extruder operators, electrical technicians, and mechanical specialists to the right task — with priority escalation for lines running high-value metallized or coextruded film orders.

Centralized Parts Inventory

Centralized parts inventory covering extruder screws, heater bands, chill rolls, nip rollers, corona treaters, and slitting blades — with safety stock levels tied to supplier lead times from Europe and Japan.

Preventive Maintenance Scheduling

Scheduled PM programs for extruder screw inspection, die gap calibration, chill roll surface treatment, and winder tension adjustment — aligned with production changeover windows.

Root Cause & Problem Tracking

Root cause analysis with structured problem groups (gauge variation, film breakage, surface defect, winder malfunction, extruder instability) linked to line-specific symptom tracking.

Mobile-First Field Access

Technicians access work orders, update status, and log findings from mobile devices directly on the production floor — even while wearing PPE.

Production Lines Under Management

LineTypePriority
BOPP Film Lines (Line 1–8)BOPPcritical
BOPET Film LineBOPETcritical
CPP Film LinesCPPhigh
Metallizing UnitConvertinghigh
Extrusion Coating LineConvertinghigh
Slitting & RewindingFinishinghigh
Utilities & SupportUtilitycritical

Want a walkthrough for your plant?

We'll map your team's actual maintenance processes and show you exactly how OpexMX would handle it.