Automation System Integrator vs OEM, What’s the Difference & Which Should You Choose?
- Mar 9
- 3 min read
Updated: Apr 8
Choosing Between an OEM and a System Integrator for Industrial Automation
When planning an automation project, one of the most important decisions is whether to work with an OEM (Original Equipment Manufacturer)Â or an automation system integrator.
Both play a role in industrial automation, but they serve very different purposes.
Understanding the difference between a system integrator vs OEMÂ will help you choose the right partner, reduce project risk, and ensure long-term system performance.
What Is an OEM (Original Equipment Manufacturer)?
An OEMÂ designs and builds equipment or machines.
This typically includes:
Packaging machines
Conveyors
Production equipment
Pre-configured automation systems
OEMs usually provide:
Standardised machine solutions
Built-in control systems
Limited customisation
OEMs are best suited for specific machines or standalone equipment.
What Is an Automation System Integrator?
An automation system integrator designs, builds, and integrates complete control systems across multiple machines, processes, or facilities.
This includes:
Integration of multiple systems into one cohesive solution
System integrators focus on how everything works together.
System Integrator vs OEM: Key Differences
Feature | OEM | System Integrator |
Focus | Individual machines | Complete systems |
Flexibility | Limited | High |
Customisation | Low–Moderate | High |
Integration | Minimal | Extensive |
Best For | Single equipment purchase | Full automation systems |
Long-Term Support | Limited | Ongoing optimisation & support |
When Should You Choose an OEM?
An OEM is the right choice if:
You need a specific machine or piece of equipment
The solution is standardised and well-defined
Integration with other systems is minimal
You are purchasing standalone machinery
Example:
Buying a single packaging machine with built-in controls.
When Should You Choose a System Integrator?
A system integrator is the better choice if:
You need multiple systems to work together
You are upgrading or modernising existing systems
You require PLC programming and machine control
You need custom automation solutions
You want long-term flexibility and scalability
Example:
Integrating multiple production lines with shared control systems and SCADA monitoring.
Real-World Scenario
OEM Approach:
A manufacturer installs a new machine from an OEM.The machine works independently but is not fully integrated with existing systems.
System Integrator Approach:
A system integrator connects multiple machines, upgrades PLC systems, and implements SCADA — creating a fully integrated, efficient production system.
The result: better performance, visibility, and control.
Common Mistake: Choosing the Wrong Approach
Many businesses rely solely on OEMs when they actually need integration.
This often leads to:
Disconnected systems
Limited scalability
Difficult maintenance
Increased downtime
A system integrator ensures everything works together properly.
Can You Use Both?
Yes, and often you should.
OEMs provide the equipment
System integrators connect, optimise, and control the entire system
This combination delivers the best results in most industrial environments.
Why Work with a System Integrator?
Working with an experienced automation system integrator provides:
Fully integrated automation systems
Custom PLC programming and control logic
Improved system reliability
Better visibility with SCADA systems
Long-term support and scalability
Frequently Asked Questions
What is the difference between an OEM and a system integrator?
An OEM builds machines, while a system integrator connects and controls multiple systems to work together.
Is an OEM or system integrator better?
It depends on your project. OEMs are best for standalone equipment, while system integrators are better for full automation systems.
Do I need a system integrator if I already have OEM machines?
Yes, especially if you need systems to work together, improve performance, or upgrade existing automation.
Can a system integrator upgrade existing systems?
Yes, system integrators specialise in upgrading, modernising, and integrating legacy systems.
What does a system integrator do in automation?
They design, program, and integrate automation systems including PLCs, control panels, and SCADA platforms.
Need Help Choosing the Right Approach?
If you’re unsure whether you need an OEM or a system integrator, we can help you make the right decision.