Irregular grain by hand
Le problème
Manual bush hammer: visible irregular grain on facade, unacceptable aesthetic defect.
Sept Tools
Gazellomur 1600 W: 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 3-in-1 combo with natively built-in strain relief and multiplied productivity.
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 3-in-1 combo goes further with productivity 4 to 6 times higher thanks to its natively built-in strain relief.
Measured performance
0
Sound level
Occupied site without acoustic nuisance.
0.42m/s²
Vibration
EN 60745 measurement on standard concrete.
4-6x
Gazellomur productivity
Versus wall set on concrete.
0
Gazellomur brushless
Constant torque on repeated impacts.
Méthode traditionnelle vs Sept Tools
×
Manual bush hammer
- Manual bush hammering: irregular grain along the run
- Extreme vibration, shoulder and wrist MSDs
- Noise above 100 dB(A) on occupied site
- Uncontrolled depth, rebar risk
- 1 day for 50 m² with the hammer
✓
Sept Tools Gazellomur Bouchardage
- Homogeneous architectural CSP 5-7 grain
- 0.42 m/s² measured, native strain relief
- 60 dB(A): occupied site without nuisance
- Controlled depth, rebar preserved
- 42 to 63 m²/h on concrete with Gazellomur
Why Sept Tools
French brushless engineering
Brushless 1600 W constant torque
Power density of the 3-in-1 combo held under repeated impacts.
Wall set or Gazellomur
Two throughput levels depending on site: standard or high productivity.
Native Gazellomur strain relief
Zero felt weight, full day with no pain.
Reproducible CSP 5-7 profile
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 constant torque, homogeneous grain.
4
Source extraction
IU33 Longopac: vertical capture at the source.
5
Profile check
CSP 5-7 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 constant torque, homogeneous grain.
- 4
Source extraction
IU33 Longopac: vertical capture at the source.
- 5
Profile check
CSP 5-7 verification depending on use: adhesion or finish.
Our solutions
View all our products Discover the dedicated range
Challenges and solutions
Technical challenges and answers
Vertical CSP profile insufficient
Le problème
Tunnel resin without CSP 5-7: delamination within 24 months, rework at contractor expense.
Sept Tools
Mechanised bush hammering: reproducible CSP profile, verifiable by roughness gauge.
Glued PRM bands failing
Le problème
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
Le problème
Raised arms plus 15 m/s² hammer vibration: shoulder RSI in series, 60-day average absence.
Sept Tools
Gazellomur built-in gantry: 0.42 m/s², zero felt weight.
Vertical silica unextracted
Le problème
Wall bush hammering without extraction: 500x OEL, unlawful on occupied site.
Sept Tools
IU33 Longopac class H HEPA H13 connected: vertical source capture.
Triple fleet not viable
Le problème
Grinding + bush hammering + planing: three machines, tripled tied capital.
Sept Tools
Gazellomur 3-in-1 combo: x14+ lifespan, payback divided by 3.
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 5 to 7 mechanical profile to guarantee the adhesion of a protection or waterproofing resin applied vertically. Essential 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, compliant with accessibility standards.
Technical paint preparation
Bush-hammered profile for optimal 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
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 3-in-1 combo reaches 42 to 63 m²/h on concrete thanks to its built-in power density and its native strain relief.
Why is the Gazellomur 4 to 6 times more productive?
The Gazellomur natively integrates the strain-relief gantry within its mechanical architecture. The operator does not have to carry the machine, the load transfer to the gantry is total. Coupled with the brushless 1600 W constant torque, the steady feed lets the pace be sustained without fatigue.
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 a 3-in-1 combo (grinding, bush hammering, planing). The operator changes the drum in less than two minutes without changing machine. Time savings and logistics simplification on multi-purpose sites.
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