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Sept Tools

Industrial brushless concrete floor grinder

Professional brushless floor grinders for screed preparation, industrial surfacing and polished concrete finishing, without sparking or overheating.

Concrete floor grinding determines the quality of every coating that follows: epoxy, polyurethane, bonded tile or polished concrete. A poor flatness or untreated high spots will compromise adhesion and shorten the life of the finish. From floor surface preparation and epoxy floor preparation to coating removal and polished concrete, Sept Tools offers a range of French brushless concrete floor grinders that combine torque, reliability and operator comfort. Each machine is engineered to deliver a uniform result on large surfaces without harming the operator over the long term.

Measured performance
60 dB(A)
Brushless sound level

Acoustic comfort on occupied or indoor job sites.

0.35m/s²
Hand-arm vibration

Measured to EN 60745 on a standard grinding cycle.

1,600 W
Brushless motor power

Constant torque on hard concrete with no variation under load.

x14+
Motor lifespan

4,000 to 6,000 hours with no internal wear parts versus 600 hours brushed.

Traditional method vs Sept Tools

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Conventional brushed grinder

  • Variable torque, loss under load
  • Sound level 90 dB(A)
  • Monthly service: brushes and commutators
  • Class M vacuum, partial capture
  • 600 h service life

Sept Tools brushless

  • Constant brushless torque 1600 W
  • 60 dB(A), occupied site compatible
  • Zero internal wear parts
  • Class H IU33/IU81, 99 % capture
  • 4,000 to 6,000 h with no intervention
Why Sept Tools

Why choose French brushless tools?

Constant brushless torque

Nominal torque is held on hard concrete even on the densest zones.

Sept Tools diamond pads

Calibrated to the range, supplied in multiple grits for substrate hardness and finish.

HEPA H13 extraction

Compatible with IU33 Longopac, IU40, IU51 and IU81 to meet crystalline silica OELs.

Simplified maintenance

Pads and housings change in minutes on site without specific tools.

Our floor grinding process

  1. 1

    Slab diagnosis

    Flatness, hardness and existing coating condition assessment.

  2. 2

    Stripping / opening

    Tapir with grit 30 or 60 metal pad to open porosity.

  3. 3

    Target CSP profile

    Successive passes until the profile required by the future coating.

  4. 4

    Class H extraction

    IU33 Longopac (up to 800 m²) or Turbo7 (beyond), source capture.

  5. 5

    Adhesion check

    Cohesion measurement and validation for resin or coating installation.

Our solutions

Which machine for your job site?

The machines below are selected for this application: brushless motors, dust captured at the source (class H extraction) and anti-MSD design. Quote within 24h.

View all our products
Petit Potam View product

Petit Potam

The Petit Potam XM165 is our compact concrete wall grinder for surface preparation, paint removal, raw concrete grinding, plaster, adhesives and resins. Brushless 1600 W constant-torque motor, vibration measured at 0.35 m/s² (14 times below the 5 m/s² ELV threshold), 60 dB on occupied job sites. Compatible with our Mygale gantries, Gecko balancers and Eland trolleys for ergonomic work on large surfaces. IP65 sealing, x14 motor lifespan vs brushed designs. Built and assembled in France.

Tapir View product

Tapir

The Tapir XTT330 is our professional concrete floor grinder for screed preparation, industrial surfacing and polished concrete finishing. Brushless 1600 W constant-torque motor, 49 kg, 60 dB, vibration 0.27 m/s², IP65. Throughput 19 to 26 m²/h on concrete depending on hardness. Compatible with our class H vacuums IU33 Longopac, IU40, IU51, IU81 for crystalline silica OEL compliance. No sparking, no overheating, x14 motor lifespan vs brushed designs. Parts in stock in Roanne, 48h after-sales.

Fouine XB165 View product

Fouine XB165

The Fouine XB165 is our versatile wall and ceiling grinder, designed for renovation, construction, demolition, asbestos abatement and dismantling. Brushless 1600 W constant-torque motor, 0.35 m/s² vibration, 60 dB(A), IP65. Mounted on a Gazelle Premium or Eland trolley, it grinds concrete ceilings without holding the machine overhead. Ø165 disc for grinding, swappable bush-hammering drum in under 2 minutes. Designed in Roanne, parts in stock, national 48h after-sales.

IU33 Longopac View product

IU33 Longopac

The IU33 Longopac is our class H construction vacuum for HEPA H13 source capture. 1100 W, 25 kg, 65 l/s flow. Longopac bagging system: continuous sealed bag, emptying without reopening, eliminating dust release on disposal. Compatible with all our grinders, planers, wall chasers and core drills. Compliant with the crystalline-silica OEL of 0.1 mg/m³ (anticipating 0.05 mg/m³ in 2027). EN 60335-2-69 annex AA. Roanne, 48h after-sales.

Turbo7 View product

Turbo7

The Turbo7 is our compact construction vacuum for quick interventions: wall grinding, grooving, drilling. 1600 W, 9.3 kg, easy transport on stairs and floors. Class H filtration compatible, source capture via standard 50 mm hose. Ideal for apartment renovation, offices and sensitive sites where the IU33 Longopac is too bulky. Roanne, 48h after-sales.

IU40 View product

IU40

The IU40 is a universal bypass motor cyclonic dust extractor designed for fine dust extraction on site. Its compact design facilitates transport and provides stable manoeuvrability. Equipped with a 22 m Longopac system, a ULPA+PTFE cartridge filter (18,500 cm2 filtration area) and an airflow of 340 m3/h, it is the ideal extraction solution for the Petit Potam and Fouine grinders.

IU51 View product

IU51

The IU51 is a dual universal bypass motor cyclonic dust extractor. Extremely compact for easy transport and excellent handling, it is ideal for confined spaces. Its patented automatic filter cleaning system guarantees continuous maximum efficiency. Equipped with 2 ULPA+PTFE cartridges (22,000 cm2), an airflow of 340 m3/h and the 22 m Longopac system. Compatible with the Petit Potam, Fouine and Castor.

IU81 View product

IU81

The IU81 is a triple-motor cyclonic dust extractor, the market reference in terms of durability. Its enhanced filter protection against abrasive materials and improved cyclonic effect make it the high-performance solution for demanding sites. Automatic filter cleaning (also available in manual mode). Equipped with 3 ULPA+PTFE cartridges (36,000 cm2), an airflow of 510 m3/h and the 22 m Longopac system. Compatible with the Petit Potam, Fouine and Castor.

IU200 View product

IU200

The IU200 is a patented industrial dust extractor with automatic filter cleaning and a multi-filter system. Designed for continuous 24/7 operation with no maintenance, it offers exceptional durability. Industrial extraction of fine dust for a clean and safe working environment. Equipped with 5 ULPA+PTFE cartridges (100,000 cm2), a turbine delivering 1,100 m3/h and a large-capacity drum. Compatible with the Petit Potam, Fouine and Castor.

Challenges and solutions

Which challenges, and how to solve them?

CSP profile non-compliant

Le problème

Epoxy applied on insufficient profile: delamination within 12 months, decennial warranty voided.

Sept Tools

Tapir 1600 W plus calibrated diamond pad: reproducible CSP 3 to 5 profile, resin spec compliant.

Visible scratches on polished floor

Le problème

The slightest grit defect appears under raking light on architectural polished concrete.

Sept Tools

Variable speed 500 to 4800 rpm constant torque, progressive diamond then velcro passes.

Flatness out of tolerance

Le problème

Industrial slab out of spec: client refuses acceptance, costly remediation.

Sept Tools

Tapir brushless 1600 W constant torque: tolerance achieved in a single pass.

Multi-layer bonded coatings

Le problème

Epoxy adhesives accumulated over 30 years: chemical strippers ineffective, schedule blown.

Sept Tools

Aggressive diamond pad IP65: mechanical stripping 60 to 80 m² per shift.

Floor silica OEL breach

Le problème

Floor grinding without extraction: concentration 200x above 0.1 mg/m³, enforcement notice.

Sept Tools

IU33 Longopac, IU40, IU51 and IU81 class H HEPA H13 connected as standard, source capture.

Industrial duty reliability

Le problème

30 to 50 h per week: brushed motor lasts 600 h, replaced every 3 to 5 months.

Sept Tools

Brushless x14+: 4,000 to 6,000 h with no service, IP65, parts stocked in Roanne.

Use cases

For which job sites?

Logistics warehouses and platforms

Slab surfacing to meet forklift flatness tolerances in logistics specifications. The Tapir processes 80 to 120 m² per shift on standard concrete with a single operator.

Retail and hospitality polished concrete

Mirror finish through progressive multi-grit passes to expose aggregates. Premium interior architecture projects: 15 to 25 m² per shift depending on target finish.

Multi-storey car park refurbishment

Stripping of degraded resins, paints and tyre rubber before requalification. The Tapir clears level after level with one operator, 60 to 80 m² per shift.

Industrial floor prep before epoxy

Porosity opening and CSP profile for resin applicator decennial warranty. Sectors: food processing, pharma, data centres.

Real-world conditions

External concrete slab grinding

Construction site video: External concrete slab grinding, concrete, industrial floors
External concrete slab grinding, Tapir 4-disc, helmeted and harnessed operator.

industrial floors · concrete

Frequently asked questions

Your questions, answered

Which grinder for decorative polished concrete?

The Petit Potam XM165 is our reference for polished concrete: compact, accurate and ideal for the multiple passes needed to reach mirror finish. Pair it with a Turbo7 vacuum for clean operation.

How do I meet silica exposure thresholds?

All our grinders connect directly to our class H vacuums to capture dust at source. The airflow and HEPA filter combination keeps operator exposure compliant with French OEL regulations.

Can I grind a wet floor?

Yes. The IP65 rating allows wet grinding. We recommend a dedicated wet/dry vacuum and a drying procedure between passes for polished concrete work.

What motor power should I aim for?

For daily professional use, we recommend a useful motor power of at least 1600 W. Several of our brushless floor grinders reach this level, with motor power varying by model.

Are your grinders eligible for long-term rental?

Yes. We offer long-term rental contracts including maintenance for businesses looking to spread the investment. Contact us for a tailored quote.

Need a quote or a demo?

Our sales team will help you choose your professional tools.

Contact us

Free quote, no obligation, reply within 24h. Equipment guaranteed 24 months.

04 77 60 60 74 Request a quote