Rotator cuff RSI ceiling
Le problème
Manual ceiling grooving: shoulders wrecked in 1 h, 60-day average absence.
Sept Tools
Articulated balancing arm: vibration 0.38 m/s², zero felt weight.
Sept Tools
Ceiling grooving with articulated arm and Eland trolley without fatigue
Desman RAI102822 mounted on an articulated arm with Eland trolley to absorb the weight. Safe, low-strain ceiling grooving for suspended electrical and HVAC networks.
Ceiling grooving is the critical step of routing networks inside suspended ceilings and soffits. Tertiary electrical cables, suspended HVAC lines, fibre optics, home automation: every recessed metre goes through a ceiling chase. Done manually with an angle grinder or chisel, the operation is punishing, loud and non-compliant with silica OELs. Sept Tools offers a dedicated set: the Desman RAI102822 mounted on an articulated arm with Eland trolley to absorb the weight. The operator guides the machine without carrying it, the articulated arm compensates for the weight at all times, and source extraction delivers silica compliance and a clean site.
Measured performance
0
Sound level
Occupied dwelling and tertiary without nuisance.
0.38m/s²
Vibration
Measured on a standard ceiling chase cycle.
0
Single-pass depth
ICTA, multilayer, standard tubes.
6-10months
Tertiary payback
Electrician or plumber on regular renovations.
Méthode traditionnelle vs Sept Tools
×
Manual ceiling grooving / angle grinder
- Raised arms: 1 hour max before acute MSD
- Manual angle grinder: extreme noise and dust
- Class M extraction: ceiling OEL not met
- Irregular trace under fatigue, slow patching
- Ceiling chases: operation dreaded on site
✓
Desman + arm + Eland Sept Tools set
- Articulated arm: zero felt weight all day long
- Desman brushless 60 dB(A) on occupied sites
- IU33 Longopac HEPA H13: OEL upheld
- Precision trace even in series, fast patching
- Routine operation, sustained throughput
Why Sept Tools
French brushless engineering
Desman brushless 1600 W
Constant torque on dense reinforced concrete ceilings: throughput preserved.
Articulated balancing arm
Continuously offsets the Desman weight: precision guiding.
Eland trolley mobility
Chase-to-chase positioning effortless, full set on the move.
IU33 Longopac extraction
Class H source capture, silica OEL compliance upheld.
Our ceiling grooving method
1
Ceiling chalk-line marking
Mark network paths: straight trace, laser references.
2
Set assembly
Desman + articulated arm + Eland trolley, zone positioning.
3
Brushless chasing
Arm precision guiding, steady feed, constant torque.
4
Source extraction
IU33 Longopac: source capture, sealed bagging.
5
Network installation
Immediate conduit or pipe recessing, plaster patching.
- 1
Ceiling chalk-line marking
Mark network paths: straight trace, laser references.
- 2
Set assembly
Desman + articulated arm + Eland trolley, zone positioning.
- 3
Brushless chasing
Arm precision guiding, steady feed, constant torque.
- 4
Source extraction
IU33 Longopac: source capture, sealed bagging.
- 5
Network installation
Immediate conduit or pipe recessing, plaster patching.
Our solutions
View all our products Discover the dedicated range
Challenges and solutions
Technical challenges and answers
Desman weight overhead ELV
Le problème
Chaser held overhead: ELV exceeded in 2 h, strain assessment mandatory.
Sept Tools
Articulated arm fully compensates weight: strain regulation compliant.
Falling silica on operator
Le problème
Ceiling fines fall on face: immediate OEL 0.1 mg/m³ exceedance.
Sept Tools
IU33 Longopac HEPA H13 source capture 65 l/s: exposure divided by 50.
Trace deviation under fatigue
Le problème
Ceiling chase manual: trace deviates after 30 min, double patching cost.
Sept Tools
Articulated arm guiding plus 1600 W constant torque: clean trace in series.
Fixed balancer limited mobility
Le problème
Fixed compensator: work limited to 2 m², constant repositioning.
Sept Tools
Articulated arm plus Eland trolley IP65: full mobility across entire surface.
MSD absenteeism improvised set
Le problème
Non-dedicated setup: 60-day MSD absence per year, throughput degraded 40 %.
Sept Tools
Sept Tools dedicated architecture: payback 6 to 10 months, sustained throughput.
Use cases
For which job sites?
Office tertiary ceiling networks
Ceiling chases for ICTA conduits and tertiary cables recessed in solid slab. Contemporary architectural finish without trunking: 20 to 40 linear metres per shift with articulated arm.
Hospitality renovation HVAC under slab
Multilayer and PEX pipe routing in concrete slab before acoustic ceiling. Hotels and care homes sector: 15 to 30 linear metres per shift.
Tertiary fibre deployment under slab
Fine chases for fibre optic in office buildings and data centres. Clean trace for invisible patching, 30 to 50 linear metres per shift.
Office automation and access control
Home automation, alarm and access control cabling in premium office renovation. Fast solution versus through-slab drilling, 25 to 45 linear metres per shift.
Frequently asked questions
Your questions, answered
Why a dedicated ceiling set?
Manual ceiling grooving quickly hits physical limits: raised arms, weight of the Desman, cumulative fatigue. A dedicated set with articulated arm and Eland trolley turns this punishing operation into a precise motion sustainable over a full day. The gains in throughput and ergonomics justify the investment for tertiary electricians and plumbers.
How does the articulated arm absorb the weight?
The articulated arm is a mechanical balancer that compensates for the weight of the Desman RAI102822 at all times, regardless of machine position. The operator only has to guide the feed without carrying the load. Same principle as the Gecko balancers for grinders, adapted to grooving.
What is the maximum ceiling depth?
The Desman RAI102822 reaches 35 mm in a single pass, sufficient for almost all ICTA conduits, multilayer tubes and standard cable runs. For greater depths, two successive passes are recommended.
Can reinforced concrete be grooved in the ceiling?
Yes, with suitable diamond blades. On dense reinforced concrete ceilings, throughput is roughly 25% lower than on a standard concrete ceiling. Radar rebar detection is recommended to avoid snags.
Payback period for a tertiary electrician?
For an electrician running regular tertiary renovations with recessed ceiling networks, the ceiling grooving set pays back in 6 to 10 months. Payback comes from time savings, elimination of MSD-related absenteeism, and silica OEL compliance that avoids labour inspectorate penalties.
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