Rollers for Flexible Packaging, Film & Extrusion

The flexible packaging segments we serve

Film flexible

Stretch, shrink and barrier film

Technical films and converting (slitting / rewind).

Sacs

Bags, sachets, pouches

Bag making / pouch making: food, pharma, industrial.

Conversion

Slitting & winding (slitting / rewind)

Stable tension, controlled surface and Ra, fewer wrinkles.

Extrusion

Extrusion & blown film

Process rollers, nip, haul-off, cooling (chill rolls).

Lamination

Lamination & adhesive laminating

Nip, applicators, coating and laminating rollers.

Sur mesure

Another process?

Describe what the part does: we'll figure it out.

Typical uses where our solutions make a difference

Traction / guidage / entraînement du film : stabilité, grip contrôlé, moins de glissement.
Nip / laminage / pressage : pression uniforme sur la largeur, géométries adaptées (crown, parabolique, taper).
Enroulage / déroulage / refente : tension stable, surface et Ra maîtrisés, moins de plis.
Adhésifs & zones collantes : anti-adhérence, tenue à la chaleur, nettoyage plus facile.
Extrusion / refroidissement / tirage : rouleaux de procédé, chill rolls et nip, surface et tenue thermique maîtrisées.
Convoyage / transfert / palettisation : roues et pièces d'usure en polyuréthane pour la constance et la durabilité.

The rollers, wheels and parts you find in packaging

Winding & unwinding rollers (winder / unwind)

Stable tension, controlled surface, fewer wrinkles at the wind.

Pull & guide rollers

Surface and hardness “just enough” — without marking or slipping.

Nip rolls / pressure rollers

Pressure uniformity, geometry (crown / crowning / parabolic).

Laminating / coating / applicator & metering rollers

Controlled surface (Ra), steady metering, chemical compatibility, release properties when needed.

Spreader / anti-wrinkle rollers

Wrinkle control: profiles reverse crown / concave and grooved designs to spread the web.

Sleeves (sleeves)

Fast replacement, simplified maintenance.

Drive & conveying wheels

Stable traction and abrasion resistance on packaging lines.

Guide / transfer wheels

Less vibration, longer service life; on a steel or aluminum core.

Cast Polyurethane Parts

Bumpers, pads, shock absorbers, guides, bushings/spacers; reverse engineering when the OEM part is unavailable.

Cooling rollers (chill / cooling)

Consistent surface and thermal resistance for extrusion and blown film.

Our solutions for packaging, film and extrusion

Soremag is a

leading supplier

of roller and wheel covering and cast polyurethane parts — for packaging plants as much as for original equipment manufacturers (OEMs), in Quebec and across North America. Since 1990, every part we ship aims at the same thing: holding the pace of your line and keeping you out of unplanned downtime.

Rouleau nip recouvert de polyuréthane pour ligne d'emballage — Soremag, Laval

Nip, press and laminating rollers

Where pressure has to be even from one end of the face to the other. Crown, concave or parabolic, to suit the film width.

Voir la page

Rouleau déplisseur courbe recouvert de caoutchouc pour film d'emballage — Soremag

Bowed spreader rollers

The wrinkle that always comes back in the same place usually gets solved here — a bowed roller or a concave profile to spread the web.

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Rouleaux de pré-étirage en polyuréthane pour enveloppeuse de palettes — Soremag

Pre-stretch rollers

For stretch wrappers: primary and secondary, as an OEM replacement or a rebuild.

Voir la page

Rouleau d'entraînement recouvert de polyuréthane pour ligne de film — Soremag

Drive, pull and feed rollers

The durometer and the surface that pull the film without marking it or letting it slip. The balance point is calculated.

Voir la page

Rouleaux, roues et pièces moulées recouverts en caoutchouc et polyuréthane — Soremag

All our products

Rollers, wheels and cast polyurethane parts — the full range, from nip rolls to wear pads.

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Rectification d'un rouleau recouvert sur tour à meuler — services Soremag, Laval (Québec)

Our services

Grinding, grooving, metal fabrication and repair, reverse engineering, emergency service.

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Sélection des matériaux

The right material for each zone of the line

Temperature, adhesives or solvents, speed, contact pressure, moisture, abrasion and the finish you need.

In packaging, two criteria almost always drive the selection:

how well the product sticks

and

how well the cover resists wear

. Each zone of the line is assessed for its real conditions — what runs over it, how fast, how hot and under what pressure.

SiliconeVMQ

Hot melt, adhesives and heat

Non-stick, and it keeps its flex through thermal cycle after thermal cycle. Standard grades to about 200 °C, high-temperature formulations to

260 °C (500 °F)

Watch for cuts, tearing and abrasion.

Polyester urethane

High traction, abrasion and cuts

Excellent resistance to abrasion, cuts and mechanical wear — the repeated pass of film.

Avoid in prolonged moisture: hydrolysis shortens its life.

Polyether urethane

Moisture and endurance

Good hydrolysis resistance; keeps the mechanical advantages of urethane.

Takes over when the ester reaches its limits.

Compatibility to be validated with certain solvents and chemicals.

Natural rubberNR

Traction and conveying

Resilience, elasticity and excellent grip — drive, pressure, conveying.

For zones without oil or incompatible contaminants.

EPDM

Water, steam and frequent cleaning

Takes water, moisture, repeated washdown and higher temperatures.

Incompatible with oils and hydrocarbons.

NitrileNBR

Oils, greases and contaminants

The reference in contact with oils, greases and petroleum-based contaminants.

Formulation and durometer chosen for the product, its concentration and the temperature.

Silicone migration — the craters called fisheyes

In an integrated plant, some silicones can migrate to a neighboring finishing, printing, painting or coating line. That contamination causes surface defects, notably the craters known as

fisheyes

Depending on the adhesive, the temperature and the production environment, we recommend a

low-migration silicone

or evaluate a replacement — a specialty urethane or a

fluoroelastomer (FKM / Viton®)

Consulter le guide de sélection des matériaux

Problem observed → possible fix

Symptôme en usine	Ce qu'on ajuste le plus souvent
Plis / instabilité du web	Géométrie (crown / concave / reverse crown) + guidage + fini de surface.
Glissement / manque de traction	Formulation du composé + dureté + surface (Ra) + revue du nettoyage.
Usure prématurée	Polyuréthane spécialisé ou caoutchouc haute résistance selon l'abrasif.
Build-up / collage d'adhésif	Silicone anti-adhérence ou formulation dédiée + surface + procédé de nettoyage.
Usure aux extrémités	Largeur utile + alignement + ajout d'une géométrie (crown / taper).
Vibration / battement / défaut de taille	Rectification, concentricité (TIR), équilibrage, réparation des portées.
Marquage / empreintes	Matériau non-marquant + ajustement de la dureté et de la pression.

A real case on an imported machine, where the wear concentrated at the film edge positions: service life doubled by no longer copying the original part.

Exemple terrain — plis & air emprisonné en conversion de films

At high speed, wrinkles often come from the

roller geometry

or from trapped air. We first confirm the source (tension, alignment, contamination), then we apply the most cost-effective correction: machining a

concave / reverse crown

profile to act as a spreader roller and push the film outward, or adding a specific

grooving

to release trapped air and stabilize the web.

What we measure and validate:

hardness (Shore A / D), surface finish (Ra), runout (TIR), cylindricity, profile / crown, dynamic balancing, condition of the journals, and chemical compatibility (swelling, hardness and surface testing on a sample).

Our approach (fast, structured, no random trial and error)

We usually start with a call or a Zoom: understanding the application before sending out a team. Depending on the case: photos/video, parameters (speed, tension, pressure), data sheets (film, adhesive, cleaner), dimensions and tolerances, sometimes a sample (part or fluid).

Then we act at the right level: resurfacing / precision grinding / grooving, complete recovering, geometry adjustment, mechanical repair, or reverse engineering when the OEM part is not available. Need a fast fix? See emergency & logistics.

Equipment and brands we see often

Even if your machines carry another name, describe the function: we will find our way around it.

BobstNordmeccanicaComexiWindmöller & HölscherReifenhäuserDavis-StandardKampfAtlas ConvertingKROENERTSOMAWulftecLantechSignode

Brands listed for reference only; Soremag is not affiliated with any of these manufacturers.

Frequently asked questions — packaging, film & extrusion

Is it better to buy OEM or to have the part refurbished? +

On a flexible packaging line, covering and grinding your existing core is often faster and cheaper than buying the OEM roller again — and we can

match material, hardness and surface to the film you run

rather than reproducing a standard.

A pull roller is slipping: what should you check first? +

Contamination (dust, additives, wax), hardness, surface (Ra) and the actual pressure. Often the answer is a combination: formulation + surface + cleaning.

Why do my rollers wear at the ends? +

Often tied to the ratio of face width to film width, to alignment, to tension or to geometry. We assess whether a parabolic crown profile or a web guiding adjustment is needed.

Film that wrinkles: is it always the roller? +

Not always, but often. The cause comes down to geometry, alignment, tension or surface. We diagnose where the wrinkle forms, then we correct it (concave / reverse crown, grooving, web guiding).

Adhesive / hot melt build-up: why does it stick so much? +

Temperature, chemistry and surface finish. Depending on the position, a high temperature release silicone cover greatly reduces adhesion and makes cleaning simpler.

Resurfacing instead of a complete recovering? +

Yes. If the cover is sound and the tolerances allow it, resurfacing extends the life of the roller. Otherwise, we strip it and we recover from scratch.

Do you do custom grooving? +

Yes: functional grooving (traction, air release, film control) matched to your application and your process.

My bearing journals are damaged: do I have to scrap the roller? +

No. We inspect the core, then we build up and remachine the journals to the original tolerances before covering — useful for keeping the accuracy of a film roller without buying a new one.

Can you remake a part when the OEM one is not available? +

Yes. Through reverse engineering, we remake the part and we can optimize it (material, geometry) for the actual duty.

How do you choose the right material without guessing? +

We start from the actual parameters of your line (temperature, chemistry, cleaning, speed, pressure, abrasion), then we choose a formulation validated against your plant conditions.

Rollers, wheels and molded parts for flexible packaging, film and extrusion

In packaging, a “small defect” shows up right away

The flexible packaging segments we serve

Stretch, shrink and barrier film

Bags, sachets, pouches

Slitting & winding (slitting / rewind)

Extrusion & blown film

Lamination & adhesive laminating

Another process?

Typical uses where our solutions make a difference

The rollers, wheels and parts you find in packaging

Winding & unwinding rollers (winder / unwind)

Pull & guide rollers

Nip rolls / pressure rollers

Laminating / coating / applicator & metering rollers

Spreader / anti-wrinkle rollers

Sleeves (sleeves)

Drive & conveying wheels

Guide / transfer wheels

Cast Polyurethane Parts

Cooling rollers (chill / cooling)

Our solutions for packaging, film and extrusion

Nip, press and laminating rollers

Bowed spreader rollers

Pre-stretch rollers

Drive, pull and feed rollers

All our products

Our services

The right material for each zone of the line

SiliconeVMQ

Polyester urethane

Polyether urethane

Natural rubberNR

EPDM

NitrileNBR

Silicone migration — the craters called fisheyes

Problem observed → possible fix

Our approach (fast, structured, no random trial and error)

Equipment and brands we see often

Frequently asked questions — packaging, film & extrusion

Is it better to buy OEM or to have the part refurbished? +

A pull roller is slipping: what should you check first? +

Why do my rollers wear at the ends? +

Film that wrinkles: is it always the roller? +

Adhesive / hot melt build-up: why does it stick so much? +

Resurfacing instead of a complete recovering? +

Do you do custom grooving? +

My bearing journals are damaged: do I have to scrap the roller? +

Can you remake a part when the OEM one is not available? +

How do you choose the right material without guessing? +

Is your film wrinkling, are your rollers slipping or fouling?