FREQUENT QUESTIONS

Choose one of the sections below to find answers to frequently asked questions. Did not find what you are looking for? Contact our experts, they are at your disposal.

WHAT KIND OF COMPONENTS CAN BE PRODUCED?

Components for eyeglasses in metal and embellishers for eyewear in plastic, parts for micromechanics and electronics, parts for fuel cells, special runs of precious objects, logos, friezes and decorations, parts of fountain pens and watches, complicated mechanisms for musical instruments, details for modeling railway, naval or automotive, objects of modern art, carnival masks, clothing accessories, jewelery, nameplates, small sculptures, reproductions of rare coins and ancient weapons, handles and small parts for antiques and vintage cars , etc, etc… 

Componenti metallo

WHAT IS NEEDED TO PRODUCE THE COMPONENTS?

disegno tecnico fotoincisioneA simple drawing on paper or in the following graphic formats: dwg, dxf (AutoCAD or other software using these formats), 3dm (Rhinoceros), stl, igs, cdr (Coreldraw), ai (Illustrator), pdf, fh11, tiff, bmp, tga, eps and others. Sometimes a photograph can be enough, if accompanied by the most important dimensions.

We can reproduce in metal an original model (master), built practically in any material: metal, plastic, wood, plaster, wax, even composed of several parts welded or glued together. The cast reproductions will have a reduction (shrinkage) of about 1.5 - 2% compared to the original. It's recommended  to indicate the most important dimensions to be respected and where to place the feeding channel.

Technical and information sheets are available in the materials section, and on our app:

Google Play  AppGallery  iPhone | iPad

HOW MUCH DOEST IT COST TO PRODUCE MY COMPONENT IN METAL?

Calculating the price of your component is now very easy!
Enter the prices page and choose the size and the metal ... that's how much it will cost you! There is no need to register or wait.

Calcolatrice prezzi fotoincisione e microfusione

If you want to receive a detailed offer, send us your drawings, photographs or models, and we will reply in a few hours.

HOW DO I CALCULATE THE PRICE FOR CASTING?

Volume microfusioneYou can check the cost of each component easily and immediately in the price section.
You just have to calculate the volume of the parallelepiped that can hold the piece, i.e. maximum length, width and height.

DO THE MOLDS COST A LOT?

Our manufacturing processes do not need molds.

For photoetching and electroforming, the plates are masked with a very high definition digital process (xmos).

Even investment casting does not require traditional molds, but rather short-lasting rubber and ceramic matrices.

At the beginning of the processing of each item and only for the first time, a simple "start-up" fee of a few tens of Euros is charged, relative to the size of the model and the complexity of the design.

You can know immediately how much you will spend in the prices section!

WHICH IS THE MINIMUM QUANTITY I CAN ORDER?

In photoetching, only 4 plates (or all the pieces that these can contain).

In casting, the minimum order is only 12 pieces per item.

In laser cutting, the minimum quantity depends on the design and must be calculated.

In electroforming, the minimum quantity is 10 adhesive sheets of 100x300 mm

And you can know immediately how much you will spend in the prices section!

WHAT IS "CHEMICAL ETCHING"?

Fotoincisione occhiali

Photoetching or chemical milling is a modern system for cutting and etching metal plates with precision, even very thin ones, advantageously replacing traditional shearing and engraving operations.

The design of the requested detail is processed on a computer and then "photographed" on the metal sheet. A sophisticated process of acid baths melts the contours, and perforates and etches the slab even on several levels.


WHICH MATERIALS CAN BE USED IN PHOTO ETCHING?

Ottone, bronzo e bronzi speciali, alpacca, rame berillio, alluminio, acciai comuni, speciali e inoxBrass, bronze and special bronzes, nickel silver, beryllium copper, aluminum, common and special steels and stainless steel. The sheets can have sizes from 100 x 300 mm up to 400 x 1000 mm, with thicknesses from 0.03 to 1.2 mm.


WHAT KIND OF FINISH CAN I GET FOR THE PHOTO-ETCHED PIECES?

The parts are normally delivered in "plate", with smooth surfaces, with a polished appearance, with two small easily removable witnesses (connectig points).

Copper alloys (brass, bronze and nickel silver) can be easily soldered with tin or welded with silver alloy, polished with special abrasive wheels, or with systems such as tumbling and vibrating.

EXELLA materials are tested to accept all the most common galvanic treatments (copper plating, nickel plating, silver plating, gold plating, rhodium plating, etc).

Copper beryllium can be treated by solubization and aging treatments, to obtain surprising elasticity and hardness characteristics (even over 400 Vickers).

Stainless steels are also available with already mirror polished surface (BA).

WHAT IS "LOST WAX CASTING"?

Microfusione strumenti musicaliLost wax casting or "investment casting" is a particular technique for faithfully reproducing complicated metal parts, even very small ones, advantageously replacing lengthy assembly operations. The original model is faithfully copied with special silicone elastomers and then reproduced in wax.

In turn, the wax copies (positive reproductions of the original) will be coated with special ceramics. The shapes obtained are then baked for many hours allowing the wax to flow out, leaving in its place the impression which will then be filled by the melten metal.

WHAT KIND OF FINISH CAN I GET IN CASTING?

Microfusione gioielleria

The parts are normally delivered with smooth surfaces, with a matt satin appearance, with a small residue of the injection channel.

Copper alloys (brass, bronze and nickel silver) can be easily soldered with tin or welded with silver alloy, mirror polished with special abrasive wheels, or with systems such as tumbling and vibrating.

EXELLA materials do not contain lead and cadmium, do not undergo treatments with acids and are tested to accept all the most common galvanic treatments (copper plating, nickel plating, silver plating, gilding, rhodium plating, etc…).

Copper beryllium can be treated by solubization and aging heat treatments, to obtain surprising elasticity and hardness characteristics (even over 300 Vickers).


WHICH MATERIALS CAN BE USED IN CASTING?

Ottone, bronzo e bronzi speciali, alpacca, rame berillio, alluminio e metalli preziosiBrass, bronze and special bronzes, nickel silver, beryllium copper, aluminum and precious metals, all lead and cadmium free.bo e cadmio.

The most commonly used materials among the over sixty alloys produced so far are indicated in the table of metals, but it is possible to compose special alloys on request.

HOW MUCH IS SHIPPING?

Shipping costs are always indicated on offers, confirmations and invoices.
For shipments up to 3 kg, these rates apply:

Imballaggio riciclabile e biodegradabile

Europe zone EU           € 26,00          1/4 working days

Europe extra EU          € 52.00*         2/6 working days

Rest of the world        € 70,00*        3/8 working days

* excluded any customs taxes 

You can find more details in the Shipping and Payment section from the menu at the bottom of the page.


DO I HAVE TO PAY VAT OR OTHER TAXES?

Our components are manufactured and shipped from Romania, so European Community origin.

> private EU customer, Romanian VAT currently applies at 19%

> EU company customer, VAT exempt if with a valid intra-community VAT number

> non-EU customer, VAT exempt

Some non-EU countries apply customs tariffs at destination.

MAY I PAY BY PAYPAL?

Yes, of course!

By selecting this payment method, you will be directed to the PayPal site where you will proceed with the payment. You can also use PayPal without creating an account. In fact, it is possible to pay, from time to time, by entering your data and those of your credit card.

Even if you have indicated an address in your PayPal account, the shipment will take place to the delivery address you indicated when ordering the products.

Exella Europe srl does not charge any commission for payments via Paypal. 

PayPal

For more information visit the Shipping and Payment section from the menu at the bottom of the page.

MAY I PAY BY CREDIT CARD?

Yes, of course!

In order to guarantee maximum security in the credit card payment system, Exella Europe srl uses secure payment systems relying on Braintree (Paypal group) and Stripe, using proven encryption techniques.

The following credit cards are accepted:

Carte di credito

For more information visit the Shipping and Payment section from the menu at the bottom of the page.

WHAT IS THE CUSTOMER AREA AND WHAT DOES IT CONTAIN?

In this reserved area you can access your products and drawings, the order history and much more at any time

Area Clienti

Can't log in or have you lost your credentials? Contact us!

I LOST MY PASSWORD.....

Don't worry, you can easily retrieve it from the Customer Area menu, or contact us

Recupera Password

HOW CAN I SEND YOU A LARGE FILE?

Our emails support attachments up to 30mb.

In the Utility > Upload File area of the site you can upload documents up to 100mb.
For larger files you can also use WeTransfer or GDrive, or ask us to activate a dedicated FTP access.

I CANNOT FIND THE INFORMATION I AM LOOKING FOR, HOW CAN I CONTACT YOU?

Write or call us from Monday to Friday, from 9 to 17


phone 049 7962-210

Or enter the contact section for more information.