
ENGINEERING CASE STUDY
Automotive Plastic Parts Painting Line
Engineering a High-Capacity Conveyor System for Restricted Industrial Spaces
BESTIR engineered a lightweight automated finishing line for automotive plastic components by combining an Inverted Triplex Power & Free Conveyor with a mechanically intelligent production system designed for maximum flexibility, minimal maintenance and future expansion.

Customer:
Automotive plastic parts manufacturer
Industry:
Automotive
Scope:
Complete Painting Line Engineering
Location:
IRAN
Technology:
Inverted Triplex Power & Free Conveyor
Project in Operation
See the Production Line in Action
Project Background
The customer operated a labor-intensive manual painting process for plastic automotive parts (front grilles and mirror frames). The allocated area of only ~120 m² was located on the third floor of an existing building, imposing strict weight and height constraints. The factory was remote from industrial support networks and the maintenance professional technicians wasn’t accesible ontime. The objective was to create a modern, high-capacity finishing line capable of handling the high product range—from small parts to large bumpers—while remaining lightweight, easy to operate, and serviceable under these severe spatial and skill limitations.
The challenge was not the painting process itself. The real engineering challenge was creating a fully automated production line inside an extremely restricted installation area while maintaining future production flexibility.
This project was developed as part of our CONVEYOR solutions for high variation product manufacturers with space area limitation.
Challenge 01
Limited Installation Area
Only about 120 m² of building third floor was available for the complete production line.
Challenge 02
Structural Load Restrictions
Building structural load limits required the lightest possible equipment package.
Challenge 03
Low Ceiling Height
Maintenance accessibility had to be preserved despite limited vertical clearance.
Challenge 04
Limited Technical Resources
The customer required a highly reliable system with minimal dependence on skilled technicians.
Our Engineering Approach

Step 01
Engineering Analysis
BESTIR evaluated structural limitations, production targets and future expansion requirements before selecting the conveyor concept.

Step 02
Triplex Conveyor Design
The Inverted Triplex Power & Free Conveyor was selected to transport products ranging from small plastic parts to full-size automotive bumpers. Learn More

Step 03
Mechanical Intelligence
Instead of relying on complex electronics, critical production functions were solved through mechanical engineering.

Step 04
Weight Optimization
Every major component was redesigned to minimize dead load while preserving structural strength.

Step 05
Maintenance Optimization
Rotating equipment and service areas were positioned to allow fast maintenance within the limited installation space.

Step 06
Future Expansion
The line was engineered to support bumper production without requiring major structural modifications.
Results
01
🚜
Flexible Product Range
Supports multiple automotive plastic components
02
🎯
Lightweight Engineering
Optimized for third-floor structural limitations
03
⚡
Operator Friendly
Mechanically simplified operation
04
✨
Future Ready
Prepared for bumper production expansion
Project Gallery
Selected photographs from engineering, installation, commissioning and production.










Engineering Highlights
Highlight 01
Inverted Triplex Power & Free Conveyor
Highlight 02
Mechanically Intelligent Automation
Highlight 03
Weight-Optimized Engineering
Highlight 04
Future Expansion Capability
Explore more engineering case studies from BESTIR.
Why choose Us
Planning Your Next Finishing Line?
Every factory has unique production challenges.
Let’s engineer the right finishing solution together.
More Than Equipment. Engineering That Creates Value.
Why This Project Succeeded
01
Engineering First
Every project begins with engineering—not equipment selection.
02
Designed for Future Expansion
Today’s investment should support tomorrow’s production.
03
Long-Term Engineering Partnership
Reliable systems designed for years of dependable operation.
