AXDC-1800: lightweight cordless vacuum cleaner on an 18V platform

One of the useful supplementary machines built on the 18V platform is our new vacuum cleaner for dry and wet vacuuming. The essence of the design is a simple "bagless" system - the extracted polluted air is blown into a collection container where impurities remain trapped by a filter. It is equipped with a powerful BLDC motor and at maximum power it "runs full out" after approx. 22 minutes with an 18V/5Ah battery, which is approximately 4.5 min/Ah. With a 2Ah battery, it can therefore vacuum for about 9 minutes. It is not intended for vacuuming aggressive or flammable liquids.

Fig. 1. HERMAN AXDC-1800 Vacuum Cleaner

• 1. Battery storage and waterproof cover
• 2. Powerful brushless motor: capable of reaching an airflow of up to 900 l/min with a suction of 15 kPa
• 3. Two-stage airflow regulation button
• 4. Collection container with a volume of 7.8 l
• 5. Wide range of accessories
• 6. HEPA filter
• 7. Mode selection option: suction / blowing

In this category, let's not expect technological miracles and don't compare them with powerful industrial vacuum cleaners. We should appreciate what these vacuum cleaners offer – low weight, easy handling, quick connection to extraction systems, and simple maintenance.

Industrial vacuum cleaners have high power inputs and large collection containers – don't look for that here. We cannot want a large collection container and a small vacuum cleaner, nor a lightweight vacuum cleaner with a 2000W motor. Let's decide what we want – and mainly – what we need. This vacuum cleaner is not for extracting a large volume of water when drilling with a diamond core bit, nor for vacuuming an industrial hall. However, it is ideal for quick connection to the extraction systems of grinders, hammer drills, jigsaws or circular saws, or for conveniently vacuuming a workbench in the workshop or a car in the garage.

Fig. 2. Possibilities of using a cordless vacuum cleaner

HEPA filter

The HERMAN AXDC-1800 vacuum cleaner is equipped with a HEPA (High Efficiency Particulate Arrestance) filter. These filters are used in modern vacuum cleaners to trap dust, pollen, mold, bacteria, and other airborne particles. They are especially useful for allergy sufferers and people with respiratory problems because they are capable of capturing even very fine particles. Interestingly: the HEPA filter was originally developed by NASA to protect personnel from radioactive contamination.

Battery

We have that freedom because of the battery; we don't need to carry a power cable and search for a socket or use an extension cord. We have grown accustomed to convenience – after all, for the sake of convenience, we pay for chargers and batteries, and in doing so, we must be aware that a battery – whether we use it or not – has a limited lifespan and one day we will have to buy a new one anyway. And once we've decided to vacuum, let it be simple.

Suction and airflow

These two parameters are most frequently cited for products in this category. It should be noted that in a "good vacuum cleaner," these parameters are in balance – the manufacturer should therefore seek a balance between them, and neither of them should be "out of whack." Higher suction (vacuum) allows for more thorough vacuuming – it "unsticks" small particles from the surface more easily. A larger airflow is, in turn, important when vacuuming bulkier and heavier debris.

Suction is given in kilopascals (kPa - the main unit in the SI system), but you can also find this data in millibars (mbar). The conversion is simple: 1 kPa = 10 mbar. Airflow can be found in liters per hour or liters per minute (l/h or l/min), so for potential comparison, we can easily convert the data.

Comparison with nearest competition^*

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Brand

Model

Battery voltage [V]

Power input [W]

Filter area [cm2]

Suction [kPa]

Collection tank vol. [l]

Max. airflow [l/min]

Operating time

Weight [kg]

Combined power

Charger

Battery

HERMAN

AXDC-1800

18

348

4000

15

7.8

900

22min / 5Ah

2.8 (without battery)

no

no

no

BOSCH

GAS 18V-10L

18

not specified

2375

11.5

6.0

2040

4min / Ah

4.7 (without battery)

no

no

no

Makita

DVC750LZX1

18

not specified

not specified

7

7.5

1800

60min / 5Ah

4.3 (without battery)

no

no

no

DeWalt

DCV584L

18

300

not specified

not specified

7.5

954

not specified

4.8 (without battery)

yes

no

no

Milwaukee

M18 FPOVCL-0

18

not specified

not specified

11.7

7.0

1416

30min / 8Ah

5.6 (with battery)

no

no

no

Metabo

AS 18 L PC

18

not specified

3600

12.0

7.5

2100

not specified

6.9 (without battery)

no

no

no

Metabo

AS 18 L PC COMPACT

18

not specified

3000

12.0

6.0

2100

not specified

3.8 (without battery)

no

no

no

Hilti

VC 5-A22

22

330

not specified

not specified

3.5

2100

not specified

5.2

no

no

no

^* Technical data of competing products were obtained from publicly available sources, and we are not responsible for their accuracy.

Sources:
HERMAN internal technical and training materials

Ing. Herman Nagypál

I graduated from a military school. I learned to work with tools and equipment as a child with my father on the construction of our family house. I test each of our new products personally - with my own hands in my well-equipped workshop. In my spare time, I study trends in the field and like to try competitive products. Some of them make me laugh, and some of them make me wonder (that someone got caught and bought it), but some are really good. Almost like ours 😊.