1. Spindle Kit vs Spindle System: What's the Difference?

Spindle Kit vs Spindle System: What’s the Difference?

If you’re here, you’re likely deciding between a Spindle Kit and a Spindle System — or trying to understand what makes them different.

The short answer:

Both use the same spindle motors.
Both use the same Delixi EM61 VFD.
Both produce the same cutting performance.

The difference is in integration, enclosure, and electrical refinement.

What Is a Spindle Kit?

“Spindle Kit VFD – functional, but requires enclosure and installation planning.”

A Spindle Kit includes:

Spindle motor (air or water cooled)
Delixi EM61 VFD
Motor cable
Power cable
Control cable
Basic documentation

The VFD is not enclosed in a finished housing.

You are responsible for:

Mounting or enclosing the VFD safely
Routing wiring cleanly
Managing strain relief
Implementing grounding properly

It is a clean, capable solution for experienced users who are comfortable working with electrical components.

What Is a Spindle System?

“Spindle System – same VFD, professionally integrated.”

A Spindle System includes everything in the Kit, plus:

Professionally built enclosure
Integrated power inlet
Aviation connectors
Proper strain relief
Grounding provisions
IoT port (if applicable)
Pre-configured layout for cleaner installs

The VFD inside is the exact same EM61 — it is simply installed in a purpose-built enclosure.

This removes electrical guesswork.

Performance Is Identical

This is important:

A Spindle Kit and a Spindle System will perform the same once installed correctly.

There is no hidden firmware difference.
There is no internal upgrade.

You are paying for:

Integration
Safety refinement
Reduced wiring decisions
Cleaner long-term reliability

Why Many Customers Choose the System

Over the years, we noticed a pattern.

Customers who bought Kits sometimes:

Mounted VFDs loosely
Skipped proper grounding
Overlooked strain relief
Used undersized enclosures
Experienced EMI-related issues

Not because the Kit was flawed — but because electrical integration matters.

The System was created to remove those variables.

Who Should Choose a Spindle Kit?

Choose the Kit if you:

Are comfortable wiring and enclosure design
Already have an electrical cabinet
Prefer full control over layout
Want the most cost-efficient entry point

Who Should Choose a Spindle System?

Choose the System if you:

Want plug-and-play refinement
Prefer not to design an enclosure
Value clean wiring
Want reduced installation variables
Plan to upgrade machines in the future and move the system easily

Can I Upgrade Later?

Yes.

If you start with a Spindle Kit, you can send the VFD back and upgrade to our enclosure later.

Many customers do this once they see the benefit of a refined install.

What About ATC Systems?

ATC Systems are different.

They include:

Industrial 4-pole spindle
Pneumatic control enclosure
Safety interlocks
Tool-change integration

ATCs build on top of the Spindle System foundation and include additional components.

ATC details are covered in the dedicated ATC section.

The Bottom Line

Spindle Kit = Same performance. More DIY.

Spindle System = Same performance. Less risk. Cleaner install.

We designed both intentionally.

The right choice depends on how much electrical integration you want to handle yourself.