Rollers, axles and structures that move in silence: the inner precision the Mobility sector demands.
The steel tube that forms the axle of an industrial wheel, a baby pram chassis, a shopping trolley, a mobility system or a conveyor belt roller cannot be just any tube. It must have exactly the right inner and outer diameters, with a virtually non-existent inner weld bead and a formability that allows bending without cracking. Perfect fit. Guaranteed functionality. And optimised cost. That is what we manufacture.
The Mobility sector covers all environments where a component must roll, rotate or move: hospitals, shopping centres, warehouses, airports, offices, homes and streets. In all of them, Delmàs precision steel tube is present — not as a generic raw material, but as the technical component that determines whether the final product works perfectly or generates problems.
When a hospital trolley wheel squeaks, when the pram vibrates as you push it, when the suitcase does not roll in a straight line — the cause is usually in the axle tube. The inner bead level, the exact diameter and the tube concentricity determine the mechanical behaviour of the final product. As manufacturers, we resolve that problem at source.
We manufacture the tube that keeps the world around you turning.
The problem Delmàs solves in the Mobility sector.
Component manufacturers for the Mobility sector face a specific technical challenge that standard steel tube cannot resolve: the inner weld bead.
- ✗Inner weld bead of 0.3–0.8 mm — variable and uncontrolled
- ✗The inner axle rubs against the bead generating friction and noise
- ✗Premature wear of the axle and tube from the first hours of use
- ✗Variable play between batches: assembly is unpredictable
- ✗In clinical environments, noise is not an aesthetic problem: it is a reportable incident
- ✗Standard diameters that force the design to adapt to the catalogue
- ✔Controlled inner bead: max. 0.15 mm on every metre of tube
- ✔Silent rotation without friction from the first use cycle
- ✔Significantly longer component service life
- ✔Consistent dimensions batch to batch: predictable assembly
- ✔Suitable for clinical, logistics and high-rotation environments
- ✔Exact diameters to the hundredth: 8.1 mm, 7 mm, whatever your design needs
Where we manufacture for the Mobility sector.
As specialist manufacturers, we develop precision steel tube solutions for all subsectors of the Mobility world — from the wheel that must not make noise in a hospital corridor to the competition chassis that must weigh as little as possible.
Silence is a technical requirement in clinical environments — not a wish. The wheels of articulated beds, wheelchairs and medication trolleys must rotate without any perceptible noise and maintain that characteristic through thousands of use cycles.
Shopping trolleys, retail displays and office chairs are used thousands of times a day. Wheel maintenance and replacement cost is a real operational KPI for retail chains and offices. OPTIM range reduces that cost directly.
In childcare and urban mobility, the challenge is not only silent rotation — it is also weight. Pram chassis, bicycle frames and scooters must be as light as possible without compromising structural resistance. This is where Delmàs's transformation capability comes in: the tube converted into a finished component ready to assemble.
Precision steel tubing applications in Mobility.
Shopping trolley axles · Hospital bed wheels · Conveyor belt rollers · Premium luggage axles
Baby pram chassis · Bicycle frames · Handlebars · Scooters · Folding structures
Pram folding mechanisms · Office chair adjustment systems · Articulated bed joints · Telescopic arms
Which range does your application need?
For: wheel axles, rollers, mechanisms.
- Inner bead ≤ 0.15 mm
- OD + ID Control
- Diameters 3–10 mm
- Exact sizes to the tenth (8.1 mm…)
For: chassis, structures, finished parts.
- 1.1 mm wall thickness
- Bending without cracking
- Cutting, punching, tapering
- Delivered ready to assemble
For: visible components with chrome plating.
- Bright, pore-free finish
- Direct chrome plating without polishing
- Diameters 3–13 mm
Are your wheels noisy? Does your axle have play? You want to optimise the performance of your mobility mechanism. OPTIM tube solves the problem at source.
Other sectors