Bosch UniversalRotak 550

9.6

Performance

9.8/10

Features

9.8/10

Design

9.6/10

Practicalities

9.6/10

Value for Money

9.4/10

Pros

  • ProSilence for quiet operation
  • Integrated 6 height adjustments
  • Large 40 L grass collection box
  • ErgoFlex Ergonomic handles
  • Rear roller for stripy lawn finish

Cons

  • Shorter Power Cord

Bosch UniversalRotak 550 Review – Electric Rotary Lawnmower

Bosch UniversalRotak 550 ReviewSummary

The Bosch UniversalRotak 550 Electric Rotary Lawnmower is a new range of premium Bosch mowers that are durable and have new innovative features. The UniversalRotak 550 has a 37cm cutting width with a large 40 litre grass collection box and is suited for lawns up to 550 metres squared. There is a powerful 1300 watt motor that powers the hardened ground steel blade that incorporates the innovative “Leaf Collect” system. There are 6 height adjustments from 20mm to 70mm that is controlled from a simple to use and unique central height adjustment button.

Bosch’s UniversalRotak 550 has a few upgrades that may make it the best choice for owners of medium to large sized lawns. Better cutting and collection, plus there are some environmental upgrades to keep the neighbours happy. In addition, Bosch has made some effort to strengthen some key areas of the machine.

In my full review of this Bosch UniversalRotak 550 Electric Rotary Lawnmower, I go into the details of all these new features and functions so you know exactly what you are getting for your money, ensuring this is the right mower for you and your lawn.

Main Features 

  • Rating: 9.6/10
  • Lawn Size: medium to large
  • Power: 1300 Watt
  • Cable Length: 10 metre cord, mains power
  • Blade Length: 37cm, metal
  • Number of Cutting Heights: 6 (from 20mm to 70mm)
  • Grass Box Capacity: 40 Litres
  • Weight: 15 Kg

Power System 

The blade is spun by a 1300 watt electric motor housed in the front top area of the deck. Because this machine has wheels, all the power goes towards cutting the grass. There is enough torque to help the blade through long grass.

With a 1300 watt motor you would think this is going to be a noisy mower, well no, Bosch have used their “ProSilence” in this UniversalRotak 550 that helps to reduce the amount of noise generated by up to 70% without compromising on the power. I had my doubts at first, but it really does work and makes the whole mowing experience more enjoyable and relaxing. Take a look at the video below to see the “ProSilence” from Bosch in action.

All in all, you will not be disappointed with the power this mower delivers, it has enough power and torque to cut thick, overgrown lawns with no problems. Just remember to start at a higher setting and work your way down if cutting really long grass.

Power Cable

Bosch has installed a cable, far shorter than the area that the mower can cut, at 10 metres. The mower is rated to cut 550 square metres, for example a 10×55 metre lawn. So, a shielded extension cable will need to be bought if you do not have one already.

As with any lawn mower if the cord becomes damaged, it is recommended to replace the cable with one of similar size and strength from Bosch and not a cheaper third party replacement.

Even though a 10 metre power cable on this  Bosch UniversalRotak 550 does seem a little short, it is pretty much standard on most electric mowers.

Bosch UniversalRotak 550

Blades

The Blades on the Bosch UniversalRotak 550 are made from hardened steel, coated to keep them sharper for longer and prevent corrosion. Though the blades are sharp, it is recommended that the operator keeps the blades clean and free from dead grass.

The Bosch UniversalRotak 550 is assembled here in the UK so blades and other spare parts are readily available and reasonably priced. Blades can also be removed and sharpened with basic tools and DIY skills.

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Height Adjustment

For some extra convenience and safety, there is a height adjustment button on the top of the machine to control the whole deck. This means that there is no need to flip the mower over and remove the blade to add spacers as required with some mowers.

This is a spring-loaded mechanism on the Bosch UniversalRotak 550 with a height indicator. The user pushes the height button down on the machine to lower it and then unloads the machine to raise it. With this system, there is no need to walk around the unit, adjusting each wheel.

This really is the easiest and smoothest height adjustment I have used and wish all lawn mower brands adopted this mechanism. You can see this innovative height adjustment in my video of the very similar Bosch AdvancedRotak 650 below.

Cutting Diameter

The cutting diameter is a wide 37 centimetres, or 0.137 square metres, for each rotation. This is marginally increased due to the grass combs that follow behind the front wheel and guide grass to the underside of the deck and into the blade.

This is a mid-range cutting width for the Bosch Universal and Advanced Rotak models.

The 37 centimetres cutting width seems to hit the sweet spot between being too small (increasing time and number of passes) and too large (difficult to manoeuvre and store).

Bosch UniversalRotak 550 Specification

Roller (Stripes)

The Bosch UniversalRotak 550 does have an integrated rear roller for a stripy lawn appearance.

Grass Box Capacity

The Bosch UniversalRotak 550 has a very respectable 40 litre grass box. Though this may not be enough for the full 550 square metre rating, it will reduce the number of emptying trips that you will need to do.

The box is composed of a solid base and top shell with mesh making up the side walls. This means that the grass box will collapse into a truly flat panel for ease of storage. Then when it is needed, its hinged arms will lock into place and slot into the rear of the mower.

There is a mechanical indicator on the grass box to view when the grass has reached such a level that it needs emptying.

The grass box is easy to attach securely and remove from the mower; the compacted grass clippings empty easily with no obstructions (see my video above).

Practicalities

The Bosch UniversalRotak 550 is a very practical mower that has innovative features assisting in cutting your lawn that much easier. As I suggested earlier the size of this mower (37cm deck size), along with its foldable handles and collapsible grass collection box make it a compact and convenient mower.

The addition of a ProSilence feature also means that you can start mowing that bit earlier on Sunday morning without disturbing your neighbours, a really nice practical touch from Bosch.

Adjusting the height of lawn mowers has always been an issue for many users with difficult and fiddly to adjust mechanism. However, with the Bosch model the height adjustment button is extremely simple and takes a matter of seconds to get that perfect height that can be clearly seen from the indicator.

Bosch UniversalRotak 550 Grass Box

The inclusion of the side grass combs also makes this a practical mower as there will be less edge trimming required once the lawn has been cut.

The Bosch UniversalRotak 550 features Bosch’s unique ergonomic handles for comfort and better posture whilst cutting your lawn. There are 4 power buttons on each of the grips, and only 1 needs to be pressed in order to power the mower.

Another beneficial feature of this mower is the central carry handle, which is well positioned and balanced for transportation.

Safety Features

There is a safety button in the centre of the control handle that must be depressed before the operator may use the machine. This is standard with most electric lawn mowers.

Mulching

There is no mulching as standard on this machine, but it does have something called leaf collect. Leaf Collect, means that the blades cut and collect dead leaves from across your lawn. The suction from the blades will then send the leaves to the cutting box with the grass. Again you can see this in action from my video above.

To learn more about the benefits of a mower that has the ability to mulch the lawn, please see my article “The Benefits of Mulching Grass – Complete Guide with Pros & Cons“.

An optional mulching plug can be purchased to enable the mulching option on this UniversalRotak 550 mower.

Bosch Lawnmower UniversalRotak 550 (1300 Watts, width of cut: 37cm,...
  • The Universal garden tools from Bosch – versatile and strong with intelligent solutions for bigger projects
  • Easily adjust grass cutting height: Simply set grass length between 25 and 70 mm in 6 stages with just one click of a button
  • Comfortable work: Healthy working posture for every body size due to ergonomically designed ErgoFlex handles
  • Easy-to-store: Collapse the handles, fold the grass bag flat and put it on top of the mower
  • Collecting and shredding leaves: Easily collect, shred and dispose leaves thanks to the LeafCollect Blade

Last update on 2020-04-10 / Affiliate links / Images from Amazon Product Advertising API

 

Bosch UniversalRotak 550 User Manual

You can download the Bosch UniversalRotak 550 user manual guide here

What’s Included in the Box? 

  • UniversalRotak 550 Mower
  • 40 L Grass Collection Box
  • User Manual

Pros

  • ProSilence for quiet operation
  • Integrated 6 height adjustments
  • Large 40 L grass collection box
  • ErgoFlex Ergonomic handles
  • Rear roller for stripy lawn finish
  • Grass combs
  • LeafCollect system

Cons 

  • Shorter Power Cord
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Should You Buy This Model?

 This mower’s ideal for those that:

  • People with medium to large lawns in size (around 550m² – around 2 tennis courts).
  • Those who want a premium brand built in the UK (Bosch).
  • People that like a traditional stripy lawn appearance.
  • People looking for a quiet lawn mower with ProSilence.
  • Those who want a wide range, easy to adjust cutting heights (6).
  • People who require a powerful 1300W electric motor for longer/thicker lawns.
  • Those looking for a mid-size 37cm cutting width.
  • Those who require a large grass collection box (40L).

Bosch Rotak Comparison Table

Lawns up to 550 m2
Bosch Lawnmower UniversalRotak 550 (1300 Watts, width of cut: 37cm,...
Lawns up to 650 m2
Bosch AdvancedRotak 650 Electric Rotary Lawnmower, Cutting Width 41 cm
Lawns up to 750 m2
Bosch AdvancedRotak 750 Electric Rotary Lawnmower, Cutting Width 45 cm
Lawn Mower
Bosch Lawnmower UniversalRotak 550 (1300 Watts, width of cut: 37cm,...
Bosch AdvancedRotak 650 Electric Rotary Lawnmower, Cutting Width 41 cm
Bosch AdvancedRotak 750 Electric Rotary Lawnmower, Cutting Width 45 cm
Motor Power
1400 W
1700 W
1800 W
Deck Size
37 cm
41 cm
45 cm
Cutting Heights
6 (20mm to 70 mm)
7 (20mm–80 mm)
7 (20mm–80 mm)
Weight
13.5 kg / 15.5 kg
16 kg / 18 kg
16 kg / 18 kg
Lawn Coverage
550 m2
650 m2
750 m2
Grass Box Capacity
40 litres
50 litres
50 litres
Rear Roller
Handles Grips
Ergoflex
ErgoSlide
ErgoSlide
Customer Rating
-
Price
£227.93
£199.99
Price not available
Prime Benefits
-
-
-
Lawns up to 550 m2
Bosch Lawnmower UniversalRotak 550 (1300 Watts, width of cut: 37cm,...
Lawn Mower
Bosch Lawnmower UniversalRotak 550 (1300 Watts, width of cut: 37cm,...
Motor Power
1400 W
Deck Size
37 cm
Cutting Heights
6 (20mm to 70 mm)
Weight
13.5 kg / 15.5 kg
Lawn Coverage
550 m2
Grass Box Capacity
40 litres
Rear Roller
Handles Grips
Ergoflex
Customer Rating
-
Price
£227.93
Prime Benefits
-
More Information
Full Review
Lawns up to 650 m2
Bosch AdvancedRotak 650 Electric Rotary Lawnmower, Cutting Width 41 cm
Lawn Mower
Bosch AdvancedRotak 650 Electric Rotary Lawnmower, Cutting Width 41 cm
Motor Power
1700 W
Deck Size
41 cm
Cutting Heights
7 (20mm–80 mm)
Weight
16 kg / 18 kg
Lawn Coverage
650 m2
Grass Box Capacity
50 litres
Rear Roller
Handles Grips
ErgoSlide
Customer Rating
Price
£199.99
Prime Benefits
-
More Information
Full Review
Lawns up to 750 m2
Bosch AdvancedRotak 750 Electric Rotary Lawnmower, Cutting Width 45 cm
Lawn Mower
Bosch AdvancedRotak 750 Electric Rotary Lawnmower, Cutting Width 45 cm
Motor Power
1800 W
Deck Size
45 cm
Cutting Heights
7 (20mm–80 mm)
Weight
16 kg / 18 kg
Lawn Coverage
750 m2
Grass Box Capacity
50 litres
Rear Roller
Handles Grips
ErgoSlide
Customer Rating
Price
Price not available
Prime Benefits
-
More Information
Full Review

Last update on 2020-04-10 / Affiliate links / Images from Amazon Product Advertising API

Conclusion

Bosch UniversalRotak 550 Review

Well-built, for a medium to large sized garden, though this being the case, a 10 metre power cord is a little too short. Bosch’s electric motors are direct drive, so there are no complex belts or gears that will wear down. The large wheels make it easier to push, especially when the grass box becomes full.

Ergoflex handles will make pushing a larger mower that much more comfortable, plus it better suits a range of taller users. Bosch has always delivered on their products, and you can see on this model how they have tried to make it safer, simpler and packed full of features that actually assist you with cutting your lawn.

In summary, the UniversalRotak 550 is up to Bosch’s usual high standards. It is durable, practical, reliable and functions exactly as you would expect from a top of the range lawn mower. Yes, you are going to pay more for this lawn mower, however you do get what you pay for and the Bosch UniversalRotak 550 is no exception. You will not be disappointed with this lawn mower as it will get the job done quickly, efficiently and economically. You can sit back and enjoy your weekends admiring your healthy and freshly cut lawn.

Where should I purchase this Bosch UniversalRotak 550?

Check Price Now

Bosch Lawnmower UniversalRotak 550 (1300 Watts, width of cut: 37cm,...
  • The Universal garden tools from Bosch – versatile and strong with intelligent solutions for bigger projects
  • Easily adjust grass cutting height: Simply set grass length between 25 and 70 mm in 6 stages with just one click of a button
  • Comfortable work: Healthy working posture for every body size due to ergonomically designed ErgoFlex handles
  • Easy-to-store: Collapse the handles, fold the grass bag flat and put it on top of the mower
  • Collecting and shredding leaves: Easily collect, shred and dispose leaves thanks to the LeafCollect Blade

Last update on 2020-04-10 / Affiliate links / Images from Amazon Product Advertising API

Bosch UniversalRotak 550 – FAQs

Do the handles fold down?

Yes, but only at the mid-way point.

Does the Bosch UniversalRotak 550 have a rear roller?

Yes, this mower does have a rear roller for a striped lawn effect.

How noisy is the Bosch UniversalRotak 550 lawn mower?

The mower has Bosch’s “ProSilence” feature reducing the noise levels to around 80 dB(A).

How large is the cutting width?

It has a good 37cm cutting length blade, so there will be less going over your own footsteps.

How heavy is the Bosch UniversalRotak 550 lawn mower?

The net weight of this mower is 13.5 Kg, the gross weight is 15.5 Kg.

Does this mower cut right to the edge?

Yes, this mower has grass combs on each side of the mower to assist with edge cutting.

How long is the warranty on the Bosch UniversalRotak 550 lawn mower?

The warranty is 2 years and can be extended to 3 years when the product is registered.

Are the wheels the same size?

Yes, it has 4 good size wheels that will make travelling across wet grass easier.

Is the Bosch UniversalRotak 550 mower self-propelled?

No, this is not a self-propelled lawn mower.

How big is the grass collection box?

The grass collection box is 40 L, so there are going to be fewer unloading trips.

Does the Bosch UniversalRotak 550 mower really pick up the leaves from my lawn?

Yes, the Bosh UniversalRotak 550 has the “LeafCollect” system that does collect leaves from your lawn.

 


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