The Mirka MRP-550CV PROS Sander 5 Inch with 5mm Orbit is a professional pneumatic random orbital sander built for serious surface preparation and finish work. This is a pneumatic random orbital sander designed for sanding, surface prep, and dust-controlled finishing work. Model Number: MRP-550CV. If you are working in collision repair, woodworking, composites, marine, or any shop where clean sanding matters, this tool is built around one thing that makes a real difference on the job: efficient dust extraction without giving up control.

The big story here is the central vacuum setup. Mirka designed the PROS 550CV for maximum dust extraction, even at lower suction power, by using a wider and more efficient suction outlet in the housing. In plain terms, that helps keep abrasive discs cutting instead of clogging, reduces airborne dust around the workpiece, and makes it easier to see what you are doing as you move through filler, primer, paint prep, sealer, or finish sanding. For anyone trying to keep a cleaner booth, cleaner bench, or cleaner customer's space, that is not a small detail.

The 5 mm orbit is a smart middle-ground setup for a 5 inch disc sander. It gives you enough movement for efficient material removal, but it is still controlled enough for refined surface prep before the next coating step. That makes this Mirka PROS sander a practical choice when you do not want one overly aggressive air sander for rough work and another for lighter finishing. It covers a lot of everyday sanding jobs with one familiar setup.

Mirka also put real thought into the body design. The PROS line is known for optimized ergonomics, and that shows up in the grip shape, compact profile, and balanced feel. A pneumatic sander is only as good as it feels after the first hour, and this one is aimed at pro users who run tools every day. The centered vacuum port makes it easier to work to either side of the tool, which matters when you are sanding panels, curves, and edges where hose position can otherwise fight you.

On the operating side, the tool features electronic speed control and a rated speed of 12,000 RPM. That gives you the kind of response you want for consistent sanding action across a range of materials and coatings. It is also rated for up to 6.2 bar, or 90 psi, which fits the kind of shop air setup most professional pneumatic sanding stations already use. This is not a cordless convenience tool pretending to be a production sander. It is an air-powered shop tool meant to keep moving.

Dust management and pad life get extra attention here too. The unique shroud system with Brake Seal is designed to minimize internal air leakage for better dust extraction, and the package includes a pad protector to help preserve the backing pad during regular use. That combination matters if you sand often enough to care about consumable cost, downtime, and keeping your pad interface working properly with hook-and-loop abrasives.

As a complete package, this setup includes the sander, a 9955 pad protector, an air supply extension, counterweight adjustment screws, a 24 mm wrench, and oil. That gives you the basics needed to get the tool into rotation without chasing down the usual small setup pieces. The quick-connect fitting for the dust extraction hose is another practical touch that saves time when you are moving between stations or changing out tools in a vacuum-assisted sanding system.

Who should buy it? Pros who care about finish quality, dust control, and daily comfort. If you are a body tech, painter, cabinet installer, finish carpenter, marine technician, or serious woodworker who already has shop air and vacuum support, the Mirka MRP-550CV makes a lot of sense. If you need a compact 5 inch air sander that stays comfortable in hand and keeps dust collection front and center, this is exactly the kind of tool worth paying attention to.

Mirka MRP-550CV PROS Sander 5 Inch with 5mm Orbit Gets the Important Stuff Right

This is the kind of air sander that earns its keep by staying comfortable, keeping dust under control, and giving you a versatile 5 mm orbit for everyday shop work.

• Who it's for: Pros in auto body, woodworking, marine, and composites who already run shop air and want a serious dust-extraction sander.
• Why it stands out: The central vacuum setup, wider suction outlet, and operator-friendly shape are the features that actually matter once you use it all day.
• Worth knowing: This is a pneumatic tool, so it makes the most sense in a shop that already has air and dust collection ready to support it.

• What type of sander is this? It is a pneumatic random orbital disc sander designed for professional sanding and surface preparation.
• What size sanding disc does it use? It uses a 5 inch sanding disc.
• Does it support dust collection? Yes. The MRP-550CV is a central vacuum model built for strong dust extraction.
• What is the orbit size? The orbit is 5 mm, which gives a practical balance between cut and finish quality.
• Does it have speed control? Yes. It features electronic speed control.