Mirka® DEROS II 650 orbital sander

Mirka DEROS II 650 Orbital Sander, Complete Overview

The Mirka DEROS II 650 is an electric orbital sander tailored for professionals who refuse to compromise on finish quality.

With a brushless motor, reduced vibrations, and ergonomic grip, it handles long days without fatiguing the operator.

Compatible with Mirka's integrated dust extraction, it keeps the backing pad clean and the surface clear throughout the work.

A made in Finland tool that is reliable, precise, and designed to last in body shops, carpentry workshops, and industrial finishing facilities.

What is the Mirka DEROS II 650 orbital sander?

The Mirka DEROS II 650 is an electric random orbital sander designed for professionals in automotive refinishing, woodworking, and surface treatment. It succeeds the first-generation DEROS, bringing significant improvements to speed control and ergonomics.

Its 150 mm backing pad with a 5 mm orbital stroke makes it a versatile tool: sanding primer, heavy-duty sanding, and intermediate finishing. It works equally well on metal, wood, and composites.

Brushless motor technology: what it actually changes

A brushless motor eliminates the mechanical wear parts found in a traditional brushed motor. The result: less maintenance, a longer service life, and significantly lower heat generation.

In practical terms, the motor adjusts its power to the load in real time. On an irregular surface, the speed remains stable without manual intervention. This is what Mirka calls constant speed electronic control.

Direct comparison with competing technologies:

Feature	DEROS II 650 (brushless)	Classic brushed sander	Festool ETS 150/5 EQ (brushless)
Motor wear	Very low	High (carbon brushes to replace)	Very low
Constant speed under load	Yes	No	Yes
Weight	~1.0 kg	~1.3-1.6 kg	~1.2 kg
Orbital stroke	5 mm	Variable	5 mm
Connectivity	Bluetooth (Mirka app)	None	None

The integrated Bluetooth connectivity is a real differentiator: via the Mirka app, you can track usage history and adjust tool settings directly from a smartphone.

Technical specifications and power of the Mirka DEROS II 650

The Mirka DEROS II 650 is a brushless electric orbital sander designed for demanding professionals. Its 350 W brushless motor delivers constant power, even under load.

It operates at a variable speed between 3,000 and 10,000 rpm, adjustable via the integrated dial. The 150 mm backing pad with a 5 mm orbital grain ensures fast and uniform sanding.

The machine weighs only 1.1 kg. This is a real advantage for long-duration work: less fatigue, better control.

The integrated Bluetooth connection allows you to control the speed from the Mirka app. Ideal for workshops looking to standardize their sanding processes.

Here is a summary of the key features:

• Motor: brushless 350 W
• Pad: 150 mm
• Orbit: 5 mm
• Speed: 3,000-10,000 rpm
• Weight: 1.1 kg
• Dust extraction: ø 27 mm connection
• Connectivity: Bluetooth

Model	Orbit	Pad	Power	Weight	Main usage
Mirka DEROS II 650	5 mm	150 mm	350 W	1.1 kg	Finishing and intermediate sanding
Mirka DEROS 650CV	5 mm	150 mm	350 W	1.2 kg	Body shop finishing
Festool ETS EC 150/5	5 mm	150 mm	400 W	1.3 kg	Wood and varnish finishing
Rupes LHR 15ES	15 mm	150 mm	310 W	1.9 kg	Matting and paint correction

Comparison: Mirka DEROS II 650 against other orbital sanders on the market

The Mirka DEROS II 650 positions itself in the high-end electronic orbital sander category. Compared to its direct competitors, it mainly stands out for its brushless motor and integrated dust extraction system.

Here is a quick comparison with the most common models on the market:

Model	Manufacturer	Orbit	Power	Motor	Integrated extraction	Strength
DEROS II 650	Mirka	5 mm	350 W	Brushless	Yes (direct)	Optimal extraction, low vibration
DEROS 650CV	Mirka	5 mm	350 W	Brushless	Yes	Previous generation, same range
ETS 150/5 EQ	Festool	5 mm	310 W	Brushed	Yes (via Systainer)	Festool ecosystem, robustness
PEX 400 AE	Metabo	4 mm	400 W	Brushed	No (dust outlet)	Raw power, affordable price
GEX 125-150 AVE	Bosch Pro	4 / 6 mm	400 W	Brushed	No	Dual orbit, versatility

The brushless motor of the DEROS II 650 gives it a significantly longer lifespan than the Metabo or Bosch models in this range. Less mechanical wear, less maintenance.

Direct pad-level dust extraction is the other key advantage. Unlike the Festool ETS 150, which relies on a dedicated external vacuum, the DEROS II 650 manages dust efficiently with any standard vacuum cleaner.

Compared to the previous generation (DEROS 650CV), the DEROS II 650 brings revised ergonomics, improved soft-start, and better heat dissipation. A relevant upgrade for intensive workshop or jobsite use.

Applications and sectors of use for the DEROS II 650

The Mirka DEROS II 650 is a random orbital sander designed for professionals who work fast and well. It adapts to a wide range of materials and contexts.

In automotive bodywork, it excels at paint sanding, surface preparation before priming, and polishing finishes. Its 5 mm orbit offers a good balance between material removal and surface quality.

In the wood industry, it treats panels, furniture, and parquet flooring efficiently. It is used on solid wood as well as MDF or plywood.

The construction and renovation sectors use it to prepare walls, ceilings, and floors before painting or coating. Coupled with a dust extraction system, it significantly limits dust on job sites.

It also finds its place in composite manufacturing, particularly in aeronautics and marine sectors, where sanding consistency is critical.

Here are the main application areas:

• Body shop: paint prep, primer sanding, finishing
• Carpentry/Cabinetmaking: solid wood, MDF, plywood
• Construction: fillers, plaster, paint, floors
• Composites: fiberglass, carbon fiber, resins
• General industry: preparation of light metal surfaces

Accessories compatible with the Mirka DEROS II 650

The Mirka DEROS II 650 relies on a well-stocked ecosystem of accessories. Mirka designed this machine to work with a coherent range of consumables and complementary equipment.

The sanding pad is a central element. The DEROS II 650 uses a 150 mm Ø pad, available in soft or hard versions depending on the flatness of the surface to be treated.

For abrasives, the Mirka Abranet range is the benchmark. This net disc allows optimal extraction over the entire surface, significantly reducing clogging and extending abrasive life.

Mirka Gold and Mirka Iridium abrasives are also compatible. Gold is suitable for versatile applications in bodywork and carpentry, while Iridium is tailored for hard surfaces and high-performance varnishes.

Regarding extraction, the DEROS II 650 connects directly to Mirka DE or DECO extractors via the quick-coupling system. A universal adapter also allows it to be connected to third-party vacuums with a standard 27 mm connector.

Here is a summary of essential accessories:

• Abranet discs Ø 150 mm, universal sanding, excellent extraction
• Gold discs Ø 150 mm, bodywork, wood, versatility
• Iridium discs Ø 150 mm, hard varnishes, demanding surfaces
• Soft pad Ø 150 mm, curved or irregular surfaces
• Hard pad Ø 150 mm, flat surfaces, precise sanding
• Mirka DE 1230 L AFC Extractor, filtered extraction, direct connection

At Dagobert Industrie, we offer these Mirka accessories to help you get the best out of your DEROS II 650 from the first use.

FAQ - Mirka DEROS II 650

1. What is the difference between the DEROS II 650 and the DEROS II 550?

The DEROS II 650 runs with a 6 mm orbit compared to 5 mm for the 550. The result: it removes more material per pass. It is better suited for roughing and shaping tasks, whereas the 550 is more geared towards finishing.

2. Can it be used without a vacuum?

Technically yes, but it is not recommended. The DEROS II 650 is designed to operate as an extraction system via the Mirka connection or a standard vacuum. Without extraction, dust quickly clogs the abrasive and reduces performance.

3. Which abrasives should be used with the DEROS II 650?

The machine is optimized for 150 mm Mirka abrasives, particularly the Abranet (net, ideal for extraction) and Galaxy (long life) ranges. It also accepts other 150 mm, 17-hole, or standard Velcro-backed discs.

4. Is it suitable for automotive bodywork?

Yes, it is one of its favorite terrains. The DEROS II 650 is widely used in body prep: sanding filler, color matching, and preparation before primer. Its random orbital movement avoids sanding marks on painted surfaces.

5. What is the service life of the machine?

Mirka designs the DEROS range for intensive professional use. With regular maintenance (cleaning filters, checking the pad), the DEROS II 650 is intended to last for several years in a workshop. Mirka also offers an after-sales service network with available spare parts.

6. Is the DEROS II 650 compatible with older DEROS accessories?

In most cases, first-generation DEROS pads and abrasives remain compatible. However, some specific DEROS II accessories (such as new handles or covers) are not backwards compatible. Check the part number before ordering.