The PG 820 RC Planetary Floor Machine with Dual Drive is a remote‑controlled concrete floor grinder built for high‑productivity industrial grinding and polishing on large slabs. With its 32‑inch grinding width, powerful 3‑phase motor, and Dual Drive Technology, it delivers exceptional material removal rates and premium polished finishes in both wet and dry applications.

What Is the PG 820 RC Planetary Floor Machine With Dual Drive?

The PG 820 RC is Husqvarna’s remote‑controlled version of the popular PG 820 planetary grinder, designed specifically for concrete floor preparation, repair, and full polishing systems. It is widely recognized as the world’s first remote‑controlled concrete floor grinder featuring Dual Drive Technology, which lets you control the planetary head and the grinding discs independently for maximum flexibility.

This machine is built for industrial applications such as warehouses, factories, big‑box retail stores, and large commercial floors where productivity and consistency are critical. It is also a recommended choice for the HiPERFLOOR concrete polishing system, making it a core grinder for contractors who specialize in high‑end polished concrete.

Key Features and Dual Drive Technology

The defining feature of the PG 820 RC is Dual Drive Technology, which allows independent forward and reverse control of both the planetary head and the individual grinding discs. This means you can fine‑tune disc speed, direction, and planetary rotation to match different concrete hardnesses, tool types, and desired scratch patterns.

Remote control operation frees the operator from standing directly behind the machine at all times. You can walk ahead to manage cables and hoses, inspect the floor, or prepare the next tool set while the grinder continues working, significantly improving overall job‑site efficiency. The RC design also improves ergonomics by reducing exposure to vibrations and allowing the operator to work from a more comfortable position.

Technical Specifications

The PG 820 RC Planetary Floor Machine with Dual Drive offers a powerful specification set tailored for heavy commercial and industrial use. Key specifications include:

• Motor output power (as rated by manufacturer): about 14.73 hp

• Rated input power: about 17.4 hp (approx. 13 kW)

• Voltage: 380–480 V, 3‑phase

• Rated current: around 23–28 A

• Frequency: 50/60 Hz depending on model and market

• Grinding width: 32 in (820 mm)

• Grinding disc diameter: about 10.5 in (270 mm)

• Number of grinding discs: 3

• Grinding disc speed: 250–1100 rpm

• Planetary head speed: about 5–65 rpm

• Maximum grinding pressure: around 664 lb (approx. 301 kg on floor)

• Machine length: about 88 in (2235 mm)

• Width: about 33 in (830 mm)

• Height: about 80 in (2032 mm)

• Machine weight: roughly 1,175–1,182 lb (around 533–536 kg)

With this combination of power, pressure, and width, the PG 820 RC is one of the most productive concrete grinders in Husqvarna’s range.

Planetary System, Remote Control, and Performance

The PG 820 RC uses a planetary drive system where three grinding discs rotate on their own axes while the entire planetary head spins in the opposite or same direction, depending on the settings. This planetary action creates a highly consistent surface profile and helps avoid swirl marks when paired with appropriate tooling and passes.

Dual Drive Technology lets you independently adjust the rotation and direction of both the planetary head and the discs, allowing very precise control over aggressiveness, cutting pattern, and tool behavior. For example, you can run counter‑rotating patterns for aggressive stock removal, then change speeds and directions to refine the scratch pattern for polishing.

Remote control operation increases productivity because the machine can grind while you handle other tasks such as tool changes, edge inspection, or vacuum hose management. This setup also makes it easier to keep optimal grinding parameters over time, since you can monitor the floor and adjust settings while the machine is running.

Applications: Grinding, Preparation, and Polishing

The PG 820 RC Planetary Floor Machine with Dual Drive is engineered for a full range of concrete floor applications. Common uses include:

• Heavy grinding and removal of coatings, adhesives, and surface defects

• Surface preparation before applying epoxy, polyurethane, or other high‑performance coatings

• Flattening slabs, removing high spots, and correcting minor unevenness in industrial floors

• Complete mechanical polishing systems, including the HiPERFLOOR process, to deliver satin to high‑gloss finishes on decorative concrete

• Wet and dry grinding operations depending on tooling and dust management setup

Because of its size and power, the PG 820 RC is especially well suited to large industrial floors, warehouses, and logistics centers where smaller grinders would be too slow. However, its remote control and design still allow precise maneuvering around columns and obstacles when operated by an experienced technician.

Tooling, Dust Control, and Integration

The PG 820 RC uses Husqvarna’s tooling systems designed for planetary grinders, with a wide range of metal‑bond, hybrid, and resin‑bond diamond tools available. Contractors can select bond hardness and grit based on concrete hardness, coating type, and desired finish, from aggressive metals for removal to high‑grit resins for final polishing.

In practice, the grinder is often paired with large dust collection systems such as Husqvarna’s industrial vacuums to maintain a clean and safe work environment. Proper dust extraction not only supports health and safety but also improves tool performance by keeping the surface clear of slurry or dust that can clog diamonds.

The machine’s design and remote control also support coordinated work flows on bigger projects, allowing the operator to monitor dust hoses, inspect edges, and stage tools while the grinder continues in a controlled pattern.

Frequently Asked Questions About the PG 820 RC Planetary Floor Machine With Dual Drive

What makes the PG 820 RC different from the standard PG 820?
The PG 820 RC adds remote control and enhanced ergonomics to the proven PG 820 platform, enabling higher productivity and allowing the operator to manage other tasks while the machine grinds.

What is Dual Drive Technology?
Dual Drive Technology allows independent control of the planetary head and the grinding discs so you can adjust their speeds and directions separately, optimizing performance for different applications and finishes.

What is the grinding width of the PG 820 RC?
The PG 820 RC has a grinding width of 32 inches (820 mm), making it one of Husqvarna’s most productive floor grinders for large surfaces.

How powerful is the motor?
The machine uses a 3‑phase motor with an output of about 14.73 hp and a rated input power of approximately 17.4 hp (around 13 kW), depending on the specific configuration.

What voltage and power supply does it require?
Typical models are designed for 380–480 V, 3‑phase power with a rated current in the 23–28 amp range, so they need appropriate industrial electrical supply.

How heavy is the PG 820 RC?
The machine weighs roughly 1,175–1,182 pounds (about 533–536 kg), which contributes to its high grinding pressure and productivity on dense concrete.

What are the grinding and planetary speeds?
The grinding discs typically run between 250 and 1100 rpm, while the planetary head speed ranges from around 5 to 65 rpm, adjustable via the control system.

Can it grind both wet and dry?
Yes, the PG 820 RC is suitable for both wet and dry grinding, depending on the chosen tools, job specifications, and dust or slurry management setup.

What types of applications is it best suited for?
It is ideal for industrial and large commercial floors where you need high removal rates, precise surface preparation, or full mechanical polishing, including HiPERFLOOR systems.

Does the PG 820 RC support remote transport and maneuvering?
The remote control allows full maneuverability of the machine on the job site, making it easier to transport across the floor and position at the start or end of grinding passes.

What kind of tooling does it use?
The grinder uses Husqvarna planetary tooling, with metal‑bond, hybrid, and resin‑bond diamond tools available in multiple bonds and grits to match different tasks.

Is the PG 820 RC compatible with dust collection systems?
Yes, it is commonly paired with large industrial dust collectors to manage airborne dust during dry grinding and to maintain a cleaner job site.

How does remote control improve productivity?
Remote control enables the operator to maintain optimized grinding parameters, manage cables and hoses, inspect the floor, and prepare the next steps simultaneously, which increases effective grinding hours per day.

Is the PG 820 RC suitable for polished concrete systems like HiPERFLOOR?
The machine is an excellent choice for the HiPERFLOOR concrete floor polishing system and is frequently specified for that purpose due to its consistency and power.

What types of businesses typically use the PG 820 RC?
Surface preparation contractors, polished concrete specialists, industrial flooring companies, and equipment rental fleets all use the PG 820 RC for high‑end, large‑scale concrete grinding and polishing projects.