Rubber molding of custom industrial parts

Perfecting Performance by EXSTO

Rubber molding

EXSTO Italia has more than 60-year experience in the production of molded rubber products

As well as supplying the finished product, we are also able to supply the moulds, manufactured by the most reliable Italian mould-makers, plus 2D and 3D design and engineering support.

Commonly EXSTO works with the following compounds, although other polymers can be developed for special requests, such as compounds in compliance of FIAT and DBL norms:
FKM, EPDM, NBR, NR, SBR, HNBR, Silicone, Neoprene, Epichloridrine, Vamac, Fluorosilicone, Polyurethanes.
Vamac compounds are fire-resistant, non-conductor, and low class in fumes emission (class 0).

EXSTO Italia employs the most popular rubber molding techniques, such as compression moulding, capillary injection molding, injection-compression molding and its presses are equipped with vacuum systems.

We built an A/C facility where we stock rubber compounds in a controlled environment: the rubber compounds we outsource are 100% tested before use according to several parameters like the hardness, elongation, tear, rheometric curve, …
We can also provide certificates of compliance with RoHs and REACH norms of our rubber compounds, or to different norms if required.

FKM Compound

Application examples of the products we manufacture for our clients:

  • Rubber bellows for a variety of uses
  • Rubber coating of rollers from diam. 20 mm to 1500 mm, up to mm 3000 long
  • Rubber coating of industrial wheels, also non-marking wheels
  • Suction cups
  • Rifle accessories, cheek pieces, and recoil pads
  • Snow-ploughs in composite materials made of rubber, metal and corindone ceramic
  • Various accessories for mineral screening plants, such as stellar discs and coated impact bars below the screening conveyor belt
  • Anti-wear rubber coating of modular mill linings
  • Shock absorbers and brakes for railways and military vehicles
  • Bearings, journal boxes, brake pads, gaskets, valves, o-ring and oval section gaskets, caps, etc..
  • Sheets, sleeves and discs
  • Rolls, valves for water and throttle valves also co-vulcanising rubber and metal parts
  • Industrial gaskets for hydraulic use, for compressors, for engine heads, for freezing liquids, etc…
  • Industrial products according to the customer’s drawing

Neoprene Compound

Products available in

Rubber coated rollers

EXSTO Italia is specialised in rubber coating of metal rollers, with diameter from mm 10 to mm 1500, and up to 4000 mm long with any rubber compound.

Upon request, we can also supply the metal hub oft he roller (complete supply).

READ MORE

Rubber bellows

Rubber bellows are usually employed as protections for parts in motion (such as pneumatic or mechanical cilinders) or for still parts. The applications of rubber bellows are countless.

READ MORE

Snowplow blades

EXSTO Italia is a leading manufacturer of snow plough blades. We offer a wide range of snowplow blades in composite material made of steel, rubber and corindone ceramic.

READ MORE

Rubber gaskets

EXSTO Italia, with its wide range of more than 50 compression and injection machines, produces rubber gaskets according to the customer’s drawing fro a variety of applications.

READ MORE

Anti-wear rubber coatings and bars

For the mining and caves industry, EXSTO Italia produces wear-resistant rubber coatings for screening slides and hoppers. We also rubber coat continuous modular mill linings for mineral treatment. EXSTO supplies anti-wear rubber linings and coated impact bars for conveyor belts, in addition to stellar disks for screening.

READ MORE

FKM

EXSTO Italia disposes of a wide selection of FKM ( Viton ) compounds, which can be used for compression and injection moulding, to manufacture extremely different components.

According to the client’s drawing, we can manufacture articles from 0.50 grams to several kilos, in a range of colours (black, green, white, brown, red) and with hardness between 50 and 90 Sh°A.

READ MORE

Neoprene CR

EXSTO Italia has a wide range of Neoprene-based compounds that can be used in compression or injection moulding with hardnesses ranging from 30 to 80 Sh°A.

READ MORE

Silicone

EXSTO Italia is specialised in production of customised components in moulded Silicone, hardness from 20 Sh°A to 80Sh°A, and it counts several compression and injections machines dedicated to this work.

READ MORE

More information on Rubber

CO-VULCANISATION RUBBER + METAL

During its activity, EXSTO Italia has specialised in co-vulcanising rubber and metal parts made of iron, stainless steel, aluminium and also plastic parts. We can manufacture products with an external diameter of maximum 850 mm, and we can supply zinc-coated or phosphate-coated metal parts.

Silicone Compounds

Custom rubber parts

EXSTO produces custom parts, both tiny and big dimensions, thanks to our presses that can host moulds up to mm 1000×1600 with 800 ton pression, for a variety of different sectors and applications as diverse our clients are.

We can supply rubber molded parts compliant with the following norms and requirements:

  • Norms FDA, BFR (previous BGVV), D.M. 2173773, N° 1935/2004/CE for silicone and FKM (“positive list” FDA 21 CFR 177.26600)
  • Norms WRASS, D.M. 174 of 06/04/04 for potable water
  • UNI CEI 11170 and EN 45545 (R22, R23, R24 – HL3) for flame resistance and fume emission
  • FIAT and DBL norms
  • EN 549 H2 for environment temperatures from -20°C to +80°C
  • Non-marking compounds, self-estinguish and antistatic compounds.

Applications

EXSTO Italia has more than 70-year experience in the production of molded rubber products.

EXSTO Italia is specialised in rubber coating of metal rollers, from a diameter of 10mm up to mm 1500, and till 4000 mm long with any rubber compound.

EXSTO Italia is specialised in the production and renovation (re-coating) of new and old rubber coated wheels: we can manufacture for example rubber wheels with black, white and coloured compounds, FDA rated for the food industry, or non-slippery rubber wheels for industrial floor-sweepers.

Rubber bellows are usually employed as protections for parts in motion (such as pneumatic or mechanical cilinders) or for still parts. The applications of rubber bellows are countless.

EXSTO Italia is a leading manufacturer of snow plough blades. We offer a wide range of snowplow blades in composite material made of steel, rubber and corindone ceramic.

Rubber diaphragms are flexible and airtight components which are employed to divide two chambers with variable volume and pressure.

EXSTO Italia has wide experience in rubber coated textiles.

EXSTO Italia, with its wide range of more than 50 compression and injection machines, produces rubber gaskets according to the customer’s drawing fro a variety of applications.

For the mining and caves industry, EXSTO Italia produces wear-resistant rubber coatings for screening slides and hoppers. We also rubber coat continuous modular mill linings for mineral treatment. EXSTO supplies anti-wear rubber linings and coated impact bars for conveyor belts, in addition to stellar disks for screening.