Chisel noise on occupied site
The problem
Chisel at 100 dB(A) in occupied dwelling: complaints, time restrictions, lost contracts.
Sept Tools
Desman brushless 60 dB(A): no restrictions, permanent cohabitation.
Sept Tools
Wall grooving for electrical and plumbing chases
French brushless wall chasers for straight, clean and reproducible electrical chases without bulky external extraction.
Free quote, no obligation, reply within one working day. Equipment guaranteed 24 months.
Wall chasing is the key operation in electrical and plumbing renovation. Every metre of recessed conduit goes through this step, which determines project speed and final patch quality. Too often, chasing is still done with pneumatic chisels, manual angle grinders or rough routers. The result is slow, loud, hazardous and dust-generating. Sept Tools offers a dedicated brushless wall chaser machine, a concrete wall chaser that transforms this operation into a fast, clean and accurate motion.
Our solutions
Which machine for your job site?
The machines below are selected for this application: brushless motors, dust captured at the source and anti-MSD design. Quote within one working day.
View all our products
Rainureuse Desman
The Desman RAI102822 is our brushless diamond wall chaser for wall and floor grooves on concrete, porcelain tile, asphalt and stone. 1600 W constant-torque motor, 62 dB(A), vibration 0.38 m/s², IP65. Weight: 10.6 kg without discs, 11.8 kg with discs. Measured throughput: concrete 8 to 12 m/h, porcelain 10 to 15 m/h, asphalt 6 to 10 m/h, stone 5 to 8 m/h. Compatible with the IU33 Longopac, declared class H, for source capture. Articulated arm absorbs the weight. Roanne, after-sales diagnosis within 48 working hours.
Exosquelette Scourpio
Scourpio is our passive exoskeleton for ceiling grinding and all overhead work (drilling, painting, plastering, asbestos abatement). 4.6 kg, no battery, no motor, mechanical springs. Relieves the rotator cuff and trapezius, the main MSD driver in construction. Donned in under 1 minute, compatible with standard PPE. Designed for long sessions in full PPE (SS3/SS4 asbestos). Roanne.
Gecko
The Gecko balancer mechanically offsets the weight of the wall grinder (Petit Potam, Fouine, Gazellomur) across all positions. 12.3 kg, generous vertical and lateral travel, no battery. The operator guides the machine without bearing the load. Compatible with the Mygale gantry and Eland trolley. Roanne, after-sales diagnosis within 48 working hours.
Mygale
The Mygale gantry carries the grinder for wall work, taking the load off the operator's arms. 31 kg, stable H frame, adjustable height up to 2.80 m, 2.60 m usable height. Compatible with Petit Potam, Fouine XB165, Gazellomur. Pairs with the Gecko balancer and Eland trolley for larger surfaces. Roanne, after-sales diagnosis within 48 working hours.
IU33 Longopac
The IU33 Longopac is our class H construction vacuum for HEPA H14 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. Source capture that helps keep exposure below the 0.1 mg/m³ crystalline-silica OEL (EU Directive 2017/2398). 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 is the ideal extraction solution for the Petit Potam and Fouine grinders.
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 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
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
The IU200 is an 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 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.
Measured performance
60 dB(A)
Sound level
Inhabited dwellings and occupied sites: no excessive nuisance.
0.38m/s²
Vibration
Measured on a straight chase cycle, well below the ELV.
35 mm
Single-pass depth
Sufficient for nearly all ICTA conduits and tubes.
4-6months
Payback
For 3 renovations/month: replaces chisel, grinder and vacuum.
Traditional method vs Sept Tools
×
Chisel / manual angle grinder
- 1 day for a standard apartment
- Excessive noise, neighbours and occupied site impossible
- Silica dust everywhere, OEL compliance impossible
- Irregular chases, slow patching
- Shoulder and back MSDs by end of week
✓
Brushless Desman chaser
- 2 h for the same apartment
- 60 dB(A), occupied site without nuisance
- IU33 Longopac: source capture, reduced exposure
- Calibrated straight chases, fast patching
- 0.38 m/s² vibration, full day with no risk
Why Sept Tools
Why choose French brushless tools?
Constant-torque brushless
Constant torque on reinforced concrete, brick and block: throughput preserved.
Adjustable depth and width
A single machine for every ICTA, multilayer, PEX or copper conduit.
Direct IU33 extraction
Source capture of silica dust, clean site.
Scourpio compatible
Overhead or serial chases: exoskeleton that relieves the shoulders.
Our wall chasing method
1
Chalk line marking
Marking conduit paths: straight line, clear references.
2
Desman setting
Width and depth adjusted to conduit diameter in seconds.
3
Brushless chasing
Steady feed, constant torque, source extraction connected.
4
Source extraction
IU33 Longopac: source capture, sealed bagging.
5
Conduit installation
Immediate conduit recessing, plaster patching.
- 1
Chalk line marking
Marking conduit paths: straight line, clear references.
- 2
Desman setting
Width and depth adjusted to conduit diameter in seconds.
- 3
Brushless chasing
Steady feed, constant torque, source extraction connected.
- 4
Source extraction
IU33 Longopac: source capture, sealed bagging.
- 5
Conduit installation
Immediate conduit recessing, plaster patching.
Challenges and solutions
Which challenges, and how to solve them?
Irregular chase poor patching
The problem
Manual angle grinder: chipped edges, variable width, double patching time.
Sept Tools
Desman: up to 50 mm depth and width, calibrated groove, fast patching.
Multi-section complexity
The problem
ICTA, multilayer, copper sections: three different tools or constant resetting.
Sept Tools
Desman tool-free depth and width adjustment in seconds.
Grinder silica unlawful
The problem
Angle grinder chasing: silica far above the 0.1 mg/m³ OEL.
Sept Tools
IU33 Longopac HEPA H14 source capture.
Serial RSI overhead
The problem
Overhead or serial chases: shoulders strained, vibration 0.38 m/s² vs 8 m/s² from chisel.
Sept Tools
Scourpio exoskeleton: weight transferred to belt, vibration 0.38 m/s².
Stalling in reinforced concrete
The problem
Old load-bearing walls: carbon blade overheats, machine stalls, blade breaks.
Sept Tools
Constant-torque brushless plus diamond blades for reinforced concrete: stable pace.
Use cases
For which job sites?
Apartment renovation electrician
Full apartment chases in 2 h instead of a full day with chisel. Residential and tertiary sector: 40 to 60 linear metres per shift.
New-build plumbing recessed
Wider chases for multilayer, PEX or copper on residential programmes. Desman sets width and depth in seconds: 30 to 50 linear metres per shift depending on section.
Office fibre and automation cabling
Fine clean chases for RJ45, fibre, alarm and home automation in offices and hotels. 50 to 80 linear metres per shift.
Industrial expansion joint work
Creating or refurbishing expansion joints and flexible sealants on industrial slabs and walls. Constant width across the full run, 20 to 40 metres per shift.
Frequently asked questions
Your questions, answered
Do I need a dedicated vacuum?
Yes. To meet silica thresholds and keep the site clean, an IU33 Longopac or equivalent is required. A household vacuum has neither the airflow nor the filter rating.
What is the maximum chase depth?
The Desman chaser reaches 50 mm deep and 50 mm wide in a single pass (1 to 3 Ø 230 mm discs, 4 discs in two passes), sufficient for nearly all standard ICTA conduits and plumbing tubes.
Can I chase reinforced concrete?
Yes, with appropriate diamond blades. On dense reinforced concrete, the throughput is roughly 30% lower than on brick or block.
Does the machine work for corners?
Chasing is done in straight runs. For corners, plan two intersecting chases. Plaster patching ensures continuity and conduit pull-through.
What is the equipment payback period?
For an electrician handling three renovations per month, the machine pays for itself in 4 to 6 months thanks to time savings and elimination of chisel, grinder and site vacuum overhead.
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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