One Chair Out, One Chair In
On July 10, 2026 our installation team took an ageing dental unit out of a working clinic and put a new ROSON DX-A3 in its place, in a single visit. The reel we posted that day runs the job end to end, from the first panel removed to the last cushion laid down.
Removal and installation are often treated as two separate jobs booked weeks apart. We do them as one. A clinic that loses its chair on Monday and gains a new one on Thursday has lost three days of operating time, and for a single chair practice that is the whole week's income.
Stripping The Old Unit
The reel opens at the old cream unit, with our technician at the light. The light comes off first because the arm carries the most weight at the highest point, and because everything below it is easier to reach once it is gone.
From there the unit comes apart in the reverse of the order it was built: covers, delivery arm, hoses, then the base bolts. Nothing is cut. The lines are traced and disconnected so the clinic keeps its existing service points intact.
Dismantling doubles as a survey. With the old chair off the floor we can see how the room was plumbed and wired, where the compressed air line enters, where the suction drops, and whether the slab under the old base is level and sound. That reading decides how the new base is set.
The DX-A3 Out Of The Wrap
The new unit arrives wrapped and crated. Unwrapping happens inside the room, not on the street, so the upholstery and the painted surfaces never meet the pavement or the rain.
The DX-A3 is the workhorse of the ROSON A3 family. What comes out of the wrap is the chair body, the delivery unit, the LED operating light and the ceramic spittoon, and each of those is fitted in turn on the same visit. If you are comparing the models in the family against each other, they sit side by side on the ROSON A3 series page.
Bowl, Light, Cushion, Base
Three things in the second half of the reel are worth naming, because they are the parts a dentist actually touches every day.
The ceramic bowl is fitted and sealed to the waterline and the drain. Ceramic is specified over plastic because it takes daily disinfectant without hazing or staining, and it drains clean.
The LED light head goes on next and is aimed. A dental light is set so the beam sits square on the working field with the chair in its treatment position, which means the chair has to be levelled before the light can be aimed properly.
The cushion set goes on last, once the base, the arms and the hoses are all in place and nothing more needs to be leaned on. Working at the base afterwards is the final pass: bolt torque, cable dressing and a run through the chair positions.
What This Means For A Clinic Owner
Replacing a chair is not a delivery. It is a demolition job and a construction job stacked on the same floor plate, in a room that has to open for patients again.
Two things decide whether that goes well. The first is whether the team removing the old unit is the same team installing the new one, so nobody has to guess what the previous crew found behind the panels. The second is whether the old unit is taken out cleanly enough to leave the services usable, because a rushed removal turns a one day job into a plumbing job.
We handle the dismantling, the haul out, the delivery and the installation as one booking. The clinic gets its room back the same day.
From Our Facebook Page
Written from our post of July 10, 2026.
Facebook reelWatch the original with sound