Atelier d'usinage Soremag : mandrin d'acier tourné sur tour CNC, réparation de rouleaux de métal et moules

Services · Métal & usinage

Fabrication and repair of the metal part

A good cover starts with good metal. Soremag builds the new core, repairs metal rollers and restores bearing journals — so your roller runs true, for a long time. We also design our own molds.

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The metal behind the cover

The metal part of the roller — the core (shaft) and its bearing journals — determines the straightness, the concentricity and the service life of the whole assembly. Soremag takes care of that part from A to Z:

new core fabrication

repair of an existing metal roller

(surfaces and bearing journals) and

dynamic balancing

. It all combines naturally with our roll covering, our grinding and our reverse engineering — one supplier, from the metal to the finish.

Our fabrication and repair services

From a new core to balancing, by way of repair back to size — with a lifting capacity of

10 metric tons (22,000 lb)

and machining of rollers up to

Ø 42 in. × 240 in.

Ø 68 in. × 175 in.

Ø 76 in. × 36 in.

Trois mandrins de rouleaux neufs de tailles différentes — petit en inox, grand en acier, moyen en aluminium

Complete Core Fabrication

We build the new core (shaft / tube) of a roller, from a drawing or by reverse engineering from an existing part — ready to receive its cover.

New core in steel, stainless or aluminum depending on the application
Machining of journals, bearing seats, keyways, threads and drilled holes
Faithful reproduction of an original core, or an improved design
Ready to be covered in rubber or polyurethane in-house

Steel Roller Repair

Rather than replace a damaged metal roller, we restore it and bring it back to size : cheaper and faster than a new part. That includes worn

bearing journals

, which create play, runout and vibration.

Straightening of a bent shaft or roller
Weld build-up and re-machining of worn or scored surfaces
Rework of damaged ends, journals, shoulders and housings
Rechargement et réusinage des portées de roulement aux cotes, pour l'ajustement exact du roulement
Concentricity restored — eliminates play, runout and vibration — before covering or return to service

Équilibrage dynamique d'un rouleau industriel sur banc d'équilibrage, avec capteurs de vibration

Dynamic Balancing

We perform thedynamic balancing of industrial rollers to reduce vibration, protect the bearings and improve stability at high speed. Each roller is measured, corrected and verified with precision — for more reliable operation and a longer service life for your equipment.

Two-plane dynamic balancing (long, heavy or high-speed rollers)
Unbalance correction by calculated removal or addition of material
Balance grade matched to the speed and the application (ref. ISO 1940)
Recommended after covering, grooving or major re-machining

In-House Mold Making

We design and build our own molds — a turnkey service, from the mold to the finished cast polyurethane part .

We build our molds in-house to produce your custom polyurethane parts: from

mold design to finished part

, one supplier. That way we control the lead times, the costs and the quality, without depending on an outside mold maker. We also make

prototype molds

to validate a geometry, a hardness or a fit — fast iterations to fine-tune the part before series production.

Très gros plan d'un moule en aluminium et de l'outil de coupe en pleine action d'usinage — atelier Soremag

Result: your cast polyurethane parts, from the mold to the finished part, under one roof.

Why trust Soremag with the metal

Metal and covering in the same place — less handling, shorter lead times, one single responsibility.

One supplier, from the metal to the finish

Metal fabrication and repair, covering, grinding and finishing — all in-house, without moving from one shop to another.

Reverse Engineering

No drawing? We reconstruct the dimensions and the profile from your part in order to build or repair it faithfully. See the reverse engineering.

Quality control

Dimensions, concentricity, runout and journals checked before covering or return to service — see our QC7 System.

From diagnosis to return to service

A clear path, on its own or combined with covering.

Assessment & measurement

Inspection of the part and survey of the dimensions — at the shop, on your line if needed, or by reverse engineering.

Fabrication or repair

New core, straightening/re-machining of the roller or rework of the journals.

Quality control

Verification of the dimensions, the concentricity and the runout.

Covering & finishing

If needed, covering, grinding and finishing, then delivery.

Metals we machine

The right metal for the load, the environment and the target weight.

SteelStainless steelAluminum

The choice of metal depends on the load, the speed, the environment (humidity, chemistry, food) and the weight you are aiming for. Need to choose the cover as well? See our pages rubber rollers and polyurethane rollers.

Questions about fabrication and repair

Can you build a new core without the original drawing? +

Yes. From the old roller, a sample or a dimensional survey (reverse engineering), we reconstruct the drawing and build a new core to the right dimensions, ready to receive the cover.

Does a roller with a damaged shaft or journal have to be replaced? +

Often, no. A bent shaft, a damaged surface or a worn bearing journal can usually be repaired and re-machined back to size, which avoids the cost and the lead time of a completely new roller.

Do you do the metal part AND the covering? +

Yes. We handle the metal part (core, repair, journal) and the roll covering in rubber or polyurethane, then the grinding and the finishing — all in the same place.

Do you check tolerances after machining? +

Yes. Dimensions, concentricity, runout and the condition of the journals are checked under our quality control system before covering or return to service.

A core to build or a metal roller to repair?

Send us your dimensions, a drawing or photos — or send the part to us. We assess whether to build new or repair, and we combine it with the covering if needed.

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