Specs from the makers' own documentation Battery compatibility built in UK retailer prices, updated daily 25+ years of trade experience
‹ Dust Extractors
18V Twin (36V) Festool CTMC SYS I 36V (2x 18V) M Class Dust Extractor (Body Only)
Dust Extractors · Festool 18V Twin (36V)

Festool CTMC SYS I 36V (2x 18V) M Class Dust Extractor (Body Only)

M class dust6kg bare36V (2x 18V)3 years all-inclusive (with registration)

Festool CTMC SYS I 36V (2x 18V) M class dust extractor: 4.5L container, 40 l/s airflow, 18 kPa suction. Wireless start from cordless tools. Body only.

Adds it to My Tools, kept on this device
Lowest price we track
£523.95at Tooled Up · Free delivery · Available to order
Compare retailersTotal with delivery
Tooled Up Lowest£523.95, free delivery · Available to order£523.95View ›
My Tool Shed£523.95, free delivery · Available to order£523.95View ›
Prices from UK retailer feeds, updated daily.We may earn a commission
40l/s
Max airflow
18kPa
Max suction
4.5L
Container
63dB(A)
Noise (LpA)
6kg
Weight (bare)

Where it sits among dust extractors

Against the 78 dust extractors we list. Not a score: bigger isn't always better for your job.

Max airflow40l/s
9l/s lowestDeWalt DWH161highest 75l/sMakita VC4210MX
Max suction18kPa
8.8kPa lowestDeWalt DCV586Mhighest 26.5kPaBosch Green PAS30-240PRS
Container4.5L
0.21L lowestDeWalt DWH161highest 55LBosch GAS 55 M AFC
Weight (bare)6kg
1.65kg lightestDeWalt DWH161heaviest 20.3kgMilwaukee M18 ONEF2VC34M

Full specs

From Festool's own documentation. Checked 28/09/2026. Report a spec error ›

Class & Suction

Dust classM class
TypeTank
Max airflow40 l/s
Max suction18 kPa
Variable suction✓ Yes
Noise level63 dB(A) LpA

Power & Battery

Voltage36V (2x 18V)
Runtime14–25 min with 2x 18V 4.0 Ah

Working With Your Tools

Wireless auto-start✓ Yes
Wireless systemFestool Bluetooth (built in; starts with a Festool Bluetooth battery pack on a cordless tool, or with the CT-F I remote control, which IS included). No module needed.
Docks withT-LOC Systainer

Tank, Hose & Filter

Container4.5 L
Hose diameter27 mm
Hose length3 m
Hose connectorFestool D27 hose end (27mm)
Fits tools✓ Fits Festool 27/36mm tool ports directly (21 tools listed)
Antistatic✓ Yes
FilterMain filter HF-CT SYS (filter surface 5,357 cm²)
BagFitted filter bag (3.5 l)

Physical & Build

Weight (bare)6 kg
Weight (with battery)7.2 kg
Dimensions396 × 297 × 307 mm
The verdictOur take

The CTMC SYS I is Festool's cordless M class extractor, taking two 18V packs for 36V, with a 4.5L container, 40 l/s of airflow and 18 kPa of suction at 6kg bare. It starts through built-in Festool Bluetooth or the included CT-F I remote, as there is no tool socket, and it is sold body only; Festool doesn't recommend it for continuous fine dust such as cement or filler. We rate it a compact cordless M class for short cutting and drilling jobs away from mains; the corded CTM MIDI I gives 61.7 l/s and a 15L container.

Powered by Festool 18V Twin (36V) · 5

All 5 batteries that fit this tool, smallest first.

BP18Li3.0C 3.0Ah · 54Wh 0.4kg 6.8kg No retailer price yet About this battery ›
BP18Li4.0HPC 4.0Ah · 72Wh 0.6kg 7.2kg from £155.95at Tooled Up + £6.95 delivery View at Tooled Up ›
BP18TBX4 4.0Ah · 72Wh 0.6kg 7.2kg from £119.95at Tooled Up + £6.95 delivery View at Tooled Up ›
BP18Li5.0 5.0Ah · 90Wh 0.7kg 7.4kg from £172.95at Tooled Up + £6.95 delivery View at Tooled Up ›
BP18TBX8 8.0Ah · 144Wh 1.0kg 8.0kg from £199.95at Tooled Up + £6.95 delivery View at Tooled Up ›

Tool weight worked out by adding each pack's weight to the bare tool, using the makers' figures. It takes two batteries, so each figure includes two packs. The maker's own with-battery figure can differ slightly. We may earn a commission on retailer links.

Warranty · 3yr

Up to 3 years1 year as standard, 3 once you register it with Festool
Register with Festool ›
Register within 100 days of buying Own one? Add it to My Tools and we'll remind you before the 100 days run out

Register in MyFestool within 100 days of purchase for 3 years of free repair, including wear parts such as carbon brushes, bearings and battery packs. Also covers theft replacement for 3 years (excess applies) and 10-year spare-part availability. Not available to dealers, hire companies or resellers. Consumables and accessories are excluded.

Warranty terms are set by the maker and can change. Always confirm current cover on their site before you buy.

Scroll to Top