Irregular grain by hand
The problem
Manual bush hammer: visible irregular grain on facade, unacceptable aesthetic defect.
Sept Tools
Gazellomur: homogeneous reproducible grain across long runs.
Sept Tools
Mechanised concrete wall bush hammering
Two brushless solutions for wall bush hammering: Mygale gantry set paired with the Petit Potam, or Gazellomur Bouchardage, a tracked carrier that reduces carrying effort.
Free quote, no obligation, reply within one working day. Equipment guaranteed 24 months.
Wall bush hammering is the most punishing finishing operation in second-fix work when carried out by hand. Bush hammer in hand, arms raised, vibrations accumulated over several hours: the result is irregular and the operator builds up chronic musculoskeletal disorders. Sept Tools offers two brushless mechanised solutions that industrialise this operation. The Mygale gantry set paired with the Petit Potam covers standard sites. The Gazellomur Bouchardage, a tracked carrier, targets large wall surfaces.
Our solutions
Which machine for your job site?
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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Mygale
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.
Bouchardeuse Potam
The Potam bush hammer has been developed with our brushless motors (low noise, low vibration, extended service life and waterproof) for renovation, construction, demolition, asbestos removal and dismantling. It handles your bush hammering tasks on render, resin, bituminous coatings and more. This bush hammer is compatible with various ergonomic tools from our range, enabling wall bush hammering. This machine must be used with an electronic speed controller IP65 and an industrial vacuum with a LONGOPAC bag.
Gazellomur Bouchardage
The Gazellomur bush hammer is the Gazellomur carrier fitted with a bush-hammering head: a semi-automatic bush hammer that allows you to treat walls, primarily used in demolition, asbestos removal and dismantling. The central mast folds and unfolds without dismantling to facilitate transport and accessibility. This machine must be used with an industrial vacuum with a LONGOPAC® cassette validated by our technical departments.
IU33 Longopac
The IU33 Longopac is our class H construction vacuum for HEPA H14 source capture. 1100 W, 25 kg, 200 m³/h flow. Longopac continuous bagging system: the full bag is sealed and separated without exposing the operator to the collected dust. Compatible with all our machines except the Castor and Ceiling Planer planers. Source capture of crystalline silica. EN 60335-2-69 annex AA. Roanne, after-sales diagnosis within 48 working hours.
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 HEPA + PTFE filter cartridge (18,500 cm² filtration area), an H14 secondary absolute filter (99.995% at 0.12 µm, MPPS) and an airflow of 170 m³/h, it suits the Petit Potam and Fouine grinders.
IU51
The IU51 is a dual universal bypass motor cyclonic dust extractor. Compact, easy to transport and to handle, it suits confined spaces. Its automatic filter cleaning system works during operation, without operator action, and keeps the airflow constant. 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
The IU81 is a triple-motor cyclonic dust extractor. Its enhanced filter protection against abrasive materials and improved cyclonic effect make it suited to 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
The IU200 is an industrial dust extractor with automatic filter cleaning and a multi-filter system. It is designed for continuous 24/7 operation. Industrial extraction of fine dust for a clean and safe working environment. Equipped with 5 HEPA + 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.
Key figures
60 dB(A)
Gazellomur sound level
Potam bush hammer at 59 dB(A), per the manuals. Occupied site without acoustic nuisance.
2.2m/s²
Vibration
Measurement on standard concrete.
2 to 4x
Gazellomur productivity
Versus wall set on concrete, at equal speed.
x13
Brushless lifespan
Motor only: 20,000 h versus 1,500 h for a brushed motor.
Traditional method vs Sept Tools
×
Manual bush hammer
- Manual bush hammering: irregular grain along the run
- Extreme vibration, shoulder and wrist MSDs
- High noise on occupied site
- Uncontrolled depth, rebar risk
- 1 day for 50 m² with the hammer
✓
Sept Tools Gazellomur Bouchardage
- Homogeneous architectural CSP 1-6 grain
- Native strain relief
- 59 to 60 dB(A) depending on the machine: occupied site without nuisance
- Controlled depth, rebar preserved
- 42 to 63 m²/h on concrete with Gazellomur
Why Sept Tools
Why choose French brushless tools?
Brushless motor
Power held under repeated impacts.
Wall set or Gazellomur
Two throughput levels depending on site: standard or high productivity.
Native Gazellomur strain relief
Reduced carrying effort over a full day.
CSP profile as per the resin data sheet
Homogeneous grain for resin adhesion or architectural finish.
Our wall bush hammering method
1
Surface diagnosis
Target profile, concrete type, occupied-site constraints.
2
Solution selection
Mygale + Petit Potam set or Gazellomur depending on throughput.
3
Mechanised bush hammering
Steady feed, brushless, homogeneous grain.
4
Source extraction
IU33 Longopac: vertical capture at the source.
5
Profile check
CSP 1-6 verification depending on use: adhesion or finish.
- 1
Surface diagnosis
Target profile, concrete type, occupied-site constraints.
- 2
Solution selection
Mygale + Petit Potam set or Gazellomur depending on throughput.
- 3
Mechanised bush hammering
Steady feed, brushless, homogeneous grain.
- 4
Source extraction
IU33 Longopac: vertical capture at the source.
- 5
Profile check
CSP 1-6 verification depending on use: adhesion or finish.
Challenges and solutions
Which challenges, and how to solve them?
Vertical CSP profile insufficient
The problem
Tunnel resin without CSP 1-6: delamination within 24 months, rework at contractor expense.
Sept Tools
Mechanised bush hammering: CSP profile as per the data sheet, verifiable by roughness gauge.
Glued PRM bands failing
The problem
Adhesive tactile wall bands: peeled off within 18 months, accessibility non-compliance.
Sept Tools
Bush hammering integrated into concrete IP65: service life matching the substrate.
Manual wall bush hammer RSI
The problem
Raised arms plus hammer vibration: shoulder RSI in series, long absences.
Sept Tools
Gazellomur built-in gantry: reduced carrying effort.
Vertical silica unextracted
The problem
Wall bush hammering without extraction: silica far above the OEL, unacceptable on an occupied site.
Sept Tools
IU33 Longopac class H HEPA H14 connected: vertical source capture.
Triple fleet not viable
The problem
Grinding + bush hammering + planing: three machines, tied-up capital.
Sept Tools
Gazellomur: one carrier, three interchangeable heads. Motor lifespan x13 (motor only).
Use cases
For which job sites?
Architectural facade finishes
Decorative bush hammering to expose aggregates and create a natural stone effect on outdoor walls and concrete facades. A finish sought in high-end contemporary architecture.
Vertical resin adhesion
Creation of a CSP 1 to 6 mechanical profile to guarantee the adhesion of a protection or waterproofing resin applied vertically. Used in tunnels and civil engineering structures.
Accessibility wall bands
Tactile wall marking for visual cues and accessibility in public buildings. A durable solution integrated into the concrete.
Technical paint preparation
Bush-hammered profile for good adhesion of intumescent or anti-graffiti technical paints. Superior durability versus simple grinding.
Real-world conditions
Bush hammering of bridge concrete
civil engineering · reinforced concrete
Bush hammers: watch all our jobsite videos Frequently asked questions
Your questions, answered
What is the difference between the wall set and the Gazellomur for bush hammering?
The wall set (Mygale gantry + Petit Potam) covers standard sites at 7 to 10 m²/h. The Gazellomur Bouchardage reaches 42 to 63 m²/h on concrete.
What does the Gazellomur Bouchardage change on a wall?
The Gazellomur Bouchardage is a tracked carrier: the operator does not have to carry the machine, which reduces carrying effort. At equal conditions it is 2 to 4 times faster than the wall set.
Does wall bush hammering damage the rebar?
No. Bush hammering acts on the surface, on the first few millimetres of concrete. Reinforcement remains intact as long as the operator respects the working depth recommended by the machine.
How is the Gazellomur Bouchardage cleaned?
The tool is IP65 sealed. Brush or low-pressure jet cleaning at end of shift is sufficient. Plates remove in one minute for thorough cleaning after long runs.
Can grinding and bush hammering be chained on the same job?
Yes. The Gazellomur is one carrier with interchangeable heads: you swap the grinding head for the bush-hammering head.
Go further
Related solutions and techniques
Compare with competitors
Compare with competitors See the real differences: motor, drive, rpm, weight, dust capture, side by side on manufacturer data.
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