Quick Answer

A planetary grinder is the workhorse for full concrete polishing — its multiple counter-rotating heads remove the swirl marks a single disc machine leaves behind — while a single disc burnisher works best for the final gloss pass and for small areas. Use a planetary machine for the grinding and resin steps, and a burnisher (single disc) for burnishing and maintaining the finish.

How the Two Machines Differ

Factor	Single Disc Burnisher	Planetary Grinder
Head design	One rotating disc	Multiple counter-rotating heads
Pass quality	Can leave swirl marks on coarse steps	Produces a flat, scratch-free pattern
Best use	Burnishing, small areas, maintenance	Grinding, honing, polishing full floors
Speed	High RPM (1000–2500+)	Lower RPM, high torque
Weight	Light to medium	Heavy, self-propelled models available

When to Use a Planetary Grinder

• Coarse grinding with metal bond tooling such as our Triple Round Segment Diamond Trapezoid Grinding Disc.
• Leveling high spots, removing coatings and opening the surface.
• Running the full resin sequence (50–3000 grit) on large floors where pattern consistency matters.

When a Single Disc Burnisher Is the Right Tool

• Burnishing a densified floor to a high gloss — single disc machines run at high RPM, which is exactly what burnishing pads need.
• Maintenance passes between jobs, keeping gloss up without full re-polishing.
• Small areas, edges, counters and tight rooms where a planetary machine will not fit.

For the resin stages on a planetary grinder, Single Rhombus Segment Trapezoid Grinding Disc (Iron Horse) and Diamond Resin Floor Polishing Pads are common choices.

How to Choose for Your Job

• Floor area over about 500 m² → planetary grinder for the full sequence, burnisher for finishing.
• Small shops, offices, existing polished floors → a single disc burnisher may cover everything after the first polish.
• Budget: a quality single disc burnisher costs a fraction of a planetary machine, but it cannot do aggressive grinding.

Frequently Asked Questions

Q: Can I polish a whole floor with a single disc burnisher?

A: You can maintain or final-polish with it, but doing the coarse grinding and full resin sequence with a single disc leaves swirl marks and takes much longer than a planetary machine.

Q: What speed do burnishing pads need?

A: Most burnishing pads are designed for 1500–2500 RPM, which matches a burnisher, not a slow planetary grinder.

Q: Do I need both machines?

A: Most contractors run a planetary grinder for polishing and a single disc burnisher for finishing and maintenance. Rental is a good option for the second machine.

Conclusion

Match the machine to the stage: planetary for grinding and polishing, single disc burnisher for gloss and upkeep. Used together they produce the fastest, flattest finish. Check out Triple Round Segment Diamond Trapezoid Grinding Disc and 3" Diamond Resin Floor Polishing Pads for tooling that works on both machines.