Gazellomur, Petit Potam, Mygale strain-reduction gantry: the Sept Tools concrete wall grinder handles vertical preparation and surfacing on raw concrete, render and paint. A professional brushless wall sander, made in Roanne, designed to reduce carrying effort.
Free quote, no obligation, reply within one working day. Equipment guaranteed 24 months.
The wall grinder is the tool that decides the quality of the vertical coating, but it is also the one nobody wants to carry at arm's length for eight hours. Raw concrete after formwork stripping (laitance, formwork fins, cold joints), paint to strip, degraded render, glue, resin: the Sept Tools concrete wall grinder handles all these substrates in vertical preparation and surfacing. The Petit Potam weighs 8 kg for touch-up areas and corners, the Gazellomur works through long runs at a sustained pace, and the Mygale strain-reduction gantry takes over the muscular load on prolonged jobsites. A professional brushless wall grinder, designed in Roanne, with national after-sales. Surface preparation, coating removal, finishing: a single tool ecosystem.
The machines below are selected for this application: dust captured at the source and anti-MSD design. Quote within one working day.
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The Gazellomur is a motorised tracked carrier: it supports and moves a Fouine grinding head, with no physical pulling or carrying effort. The same carrier also takes a bush-hammering or planing head. Grinding: 30 to 90 m²/h depending on the substrate (30 to 50 on plaster and adhesives, 20 to 40 on bitumen and resins). 2200 W, IP65, 124 kg. Compatible with the IU33 Longopac, a Sept Tools vacuum declared as class H. Built and assembled in France.
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 motor, vibration of 0.35 m/s² measured at the handle and declared in the user manual, 59 dB(A) on occupied job sites. Compatible with our Mygale gantries and Gecko balancers for ergonomic work on large surfaces. IP65 sealing, x13 motor lifespan vs brushed designs (motor only). Built and assembled in France.
The Mygale gantry carries the grinder for wall work, taking the load off the operator's arms. 31 kg (gantry only, without balancer), stable H frame, adjustable height up to 2.70 m (2.80 m working height with the machine mounted), 2.60 m usable height. Compatible with Petit Potam and Desman. Roanne, after-sales diagnosis within 48 working hours.
The Écureuil has been developed with our 700W brushless motors (low noise, low vibration, extended service life and waterproof) for renovation, construction, demolition, asbestos removal and coating stripping. Compact and manoeuvrable, it accesses hard-to-reach areas.
Occupied site, inhabited housing: sound level suited to wall grinding.
Value declared in the grinder manual (K = 1.5): less vibration in the hands.
Protection against concrete dust and water cleaning (without high pressure).
Brushless motor with no carbon brushes, 13 times the service life of a carbon-brush motor.
Holds up on raw concrete and laitance with no loss of speed. Service life 13 times longer, 20,000 hours with no carbon brushes.
Value declared in the Petit Potam manual (K = 1.5).
Gantry that removes the need to carry the wall grinder on long runs. The operator guides instead of holding up.
Design office and assembly in France. National after-sales, IP65 sealing and 59-60 dB(A) sound level.
Measuring the hardness of the vertical concrete and choosing the diamond plate suited to the substrate and the finish.
Petit Potam for corners and touch-ups, Gazellomur for long runs in vertical surfacing.
Mounting the wall grinder on the gantry to take over the load on prolonged jobsites.
Class H HEPA vacuum connection, capture at the source.
Checking the surface condition and the bond before applying paint, render or coating.
Substrate diagnosis
Measuring the hardness of the vertical concrete and choosing the diamond plate suited to the substrate and the finish.
Stripping or preparation
Petit Potam for corners and touch-ups, Gazellomur for long runs in vertical surfacing.
Mygale strain reduction
Mounting the wall grinder on the gantry to take over the load on prolonged jobsites.
Source capture
Class H HEPA vacuum connection, capture at the source.
Check and finish
Checking the surface condition and the bond before applying paint, render or coating.
Carbon-brush angle grinder: high vibration, the 2.5 m/s² action value quickly approached, chronic shoulder and wrist MSDs in prolonged wall grinding.
Petit Potam wall grinder: 0.35 m/s² declared (manual), plus the Mygale gantry that takes over the muscular load on long runs.
On dense concrete and reinforced laitance, the operator multiplies passes.
Brushless motor: uniform attack of the substrate on vertical raw concrete.
Carrying the wall sander at arm's length over several hundred square metres exhausts the operator and drops the pace at the end of the shift.
Mygale strain-reduction gantry: the machine is carried by the structure, the operator guides. Gazellomur pace held at 30 to 90 m²/h.
Wall grinding without effective extraction: crystalline silica exposure far above the limit values, health risk and labour inspectorate citation.
Class H HEPA vacuum connection, capture at the source.
Noisy angle grinder: neighbour complaints, possible working-hour restrictions in occupied tertiary buildings and inhabited housing.
Brushless wall grinder at 59-60 dB(A): easier coexistence, sound level suited to sensitive sites.
Property developments, civil engineering structures, concrete walls: removal of formwork fins and correction of steps between pours on vertical surfaces. The Gazellomur works through large walls at 30 to 90 m²/h, the Petit Potam reworks corners and slab edges.
Tertiary renovation, collective housing, care homes (EHPAD), schools: opening the substrate and matting the surface to guarantee the bond of the vertical coating. Output rate depends on the substrate and the diamond plate grit selected.
Rehabilitation and requalification: removal of paints, glues, degraded renders and resins on concrete walls. The Sept Tools brushless render sander handles these substrates in vertical surfacing. The Mygale gantry keeps up the pace on large surfaces without muscular overload, with a single operator guiding.
Boutiques, halls, lofts, hotels: progressive multi-grit grinding to reveal the aggregates on decorative concrete walls. Premium finishing work with the Petit Potam.
See the real differences: motor, drive, rpm, weight, dust capture, side by side on manufacturer data.
Our sales team will help you choose your professional tools.
Free quote, no obligation. Equipment guaranteed 24 months.
