Wollmer W600 Ultrabot: A window cleaning robot with automatic water supply

This review examines the Wollmer W600 Ultrabot window cleaning robot. This technology not only saves you time but, more importantly, increases safety, as you don't have to climb onto the windowsill to clean the outside. It's a highly recommended device for those living on upper floors, especially those with fixed panoramic windows without sashes. Next, I'll test the Wollmer W600 Ultrabot and then express my opinion on whether this window cleaning robot, priced at around $500 at the time of writing, is worth purchasing. So, let's get started!

Equipment

The Wollmer W600 Ultrabot arrived in this branded box:

In addition to the robot itself and its safety rope, the delivery kit includes:

1. Power adapter.
2. Extension cord.
3. Cord for connecting the adapter to the network.
4. Remote control.
5. Two spare mounting discs for installing wipes.
6. Set of spare napkins.
7. Operating instructions and warranty card.
8. A bottle for filling water into the tank in the robot.

The package is good. It's worth noting that the robot comes with a whopping 14 cleaning cloths. According to the manufacturer, this is enough for 3,000 cleaning cycles. That's a plus!

Appearance

Now let's take a look at the Wollmer W600 Ultrabot. It's a moldboard-shaped robot, finished in black and blue. A grip handle is mounted on top, ensuring a comfortable grip and minimizing the risk of accidentally dropping it. Ventilation holes for the main motor, which suctions the robot to vertical surfaces, are located on the sides.

At the back there is a power connector and a place to attach a safety cable.

On the front, there's a single mechanical control button, which turns the power on/off and initiates the window cleaning process. Next to it, we see the speaker hole.

The top cover is removable and held in place by magnets. Underneath, there's a hole with a sealed lid for pouring water or cleaning solution into the robot's reservoir. This reservoir holds up to 50 ml of water.

Water is supplied through a special nozzle located in the center of the sidewall.

The cleaning module consists of two rotating discs with microfiber cloths attached. Between them are indicator lights indicating the robot's status. When the robot is cleaning inside, a button backlight serves as an indicator, and when it's cleaning outside, the status is still visible thanks to these indicators. Attaching the discs to the robot's base is very simple; simply align the clips and grooves evenly.

Overall, the Wollmer W600 Ultrabot has high build quality. The finish is stain-resistant, there's no play, and the robot looks stylish. Let's move on!

Technical specifications

The main characteristics of the Wollmer W600 Ultrabot, as stated by the manufacturer:

• Power consumption 80 W.
• Vacuum 4000 Pa.
• Li-Ion battery, 600 mAh.
• UPS battery life is 30 min.
• Dimensions 295*145*95 mm.
• Weight 0.95 kg.

It's important to note that the manufacturer states the case height is 95 mm. In reality, the height is even smaller, at around 87 mm.

The robot's light weight is also worth noting; it's half the weight of square-shaped window cleaning robots. Other specifications are comparable to similar robots.

Functional capabilities

Let's move on to a review of the Wollmer W600 Ultrabot's features. The robot is controlled via a remote control. Smartphone control is not supported, although I don't really consider this important, as no one is going to be using this type of equipment remotely anyway. It requires a person to be present, and therefore, smartphone control is minimally useful.

The control panel contains the following functions:

1. Switching between manual and automatic water supply.
2. Forced water supply when manual mode is selected.
3. Joystick for manual control of the robot.
4. Three modes of movement on the surface (from the left edge, from the right edge and from the top point down).
5. Stopping the program.
6. And start/pause.

These features will be enough to perform the basic task of the Wollmer W600 Ultrabot.

Testing

Finally, let's move on to testing. There will be several short but informative tests that will demonstrate the robot's effectiveness and some important operating nuances. A detailed video review of the Wollmer W600 Ultrabot, including all the tests, has already been prepared and published on the channel:

Window cleaning quality

First, let's test the window cleaning performance from the outside. Here's the window's initial state before turning it on. It's very dusty. As recommended by the manufacturer, we first run the Wollmer W600 Ultrabot with dry wipes without water to collect all the dust. Here's the initial and final state of the window:

And here are the wipes after testing. The effectiveness of this device has already been proven.

After this, we change the wipes, fill the reservoir with water, and run the robot again. During this cycle, it can remove stains and streaks from the window. And that's exactly what it did. You can see how the automatic water supply to the surface in front of the wipes works:

It is not blown away by the wind, and the trajectory does not go beyond the cleaning cloths, so there are no water stains left after the robot passes.

Overall, the window cleaning quality is good. Only the corners remain unwashed due to design issues. The round cloth cannot reach into the corner.

It's also worth noting that the robot's navigation is excellent. It doesn't miss any spots or slip on glass. That's a plus!

Application on other surfaces

The Wollmer W600 Ultrabot can also clean other flat, hard surfaces, not just windows. For example, it can be used to clean bathroom tiles, mirrors, or even kitchen backsplashes.

It's also important to note that the Wollmer W600 Ultrabot can navigate horizontal surfaces. Perhaps you'll find a use for it given this fact.

And one more observation: in my tests, the Wollmer W600 Ultrabot moved away from the cliff carefully, but the manufacturer in any case does not recommend using it on frameless windows in automatic mode, only using manual control with the remote control.

However, don't forget about an important requirement: be sure to secure the safety cable before using the robot.

Operation in emergency mode

Let me demonstrate how the Wollmer W600 Ultrabot behaves during a power outage. If the power in your apartment or house suddenly goes out, the robot will start beeping and the indicators on both sides will flash red.

In this mode, the device can operate for up to 30 minutes. This is enough time to promptly detect the problem and remove the robot from the window.

Noise level

The final test was to check the noise level of the Wollmer W600 Ultrabot. A special sound level meter was used for this. The noise level was found to be in the range of 77-77.5 dB, which is quite standard.

Let's sum it up

The Wollmer W600 Ultrabot was thoroughly reviewed and tested. I'll share my thoughts on the window cleaning robot after trying it out. Here's what I liked:

1. Good quality window cleaning.
2. Automatic water supply system to the surface.
3. Complete set.
4. High quality assembly.
5. Work on horizontal surfaces.
6. Light weight.
7. Availability of warranty and service.

As for drawbacks, the main one is that the Wollmer W600 Ultrabot doesn't clean corners of windows, like its peers. Currently, no manufacturer has solved the issue of complete corner cleaning. Furthermore, compared to other robotic window cleaners tested, it's worth noting the lack of smartphone control (which isn't particularly important), the lack of full cleaning capability for frameless windows, and the above-average price.

Overall, the device left a largely positive impression, so I see no reason not to recommend it. I'd like to end the review on that note. If you have any questions, please ask in the comments. Happy shopping. Bye!