rapid Sitomb®: next generation silicon tombac for prototypes and small series.

From now on, BREUCKMANN offers you cast prototypes from silicon tombac, which are sold under the name “rapid Sitomb”. The production of these prototypes takes place in a special investment casting process, so you do not incur any tool costs. For these cast prototypes, we guarantee you a delivery time of 10 days after receipt of the final 3D data.

Prices start at 99€

Our goal is to help you as a comprehensive partner. From prototype production to serial production, you have a competent partner for the global future markets at BREUCKMANN. As soon as you have a serial requirement, the usual performance of the die casting production of silicon tombac is available with the lowest prices per item and outstanding quality. Due to the fact that rapid Sitomb can be used in the prototype phase, a very fast ramp-up into serial production can be achieved.

Fast ramp-up into serial production due to rapid Sitomb from Breuckmann

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Technical information

Our cast parts from rapid Sitomb are produced in a different casting process than the known silicon tombac (Sitomb):

  • rapid Sitomb: investment casting process | lost shape with low thermal conductivity
  • Silicon Tombac: high pressure die casting (or gravity die casting) | Permanent mold with high thermal conductivity
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In the production of prototypes from silicon tombac, we are largely free in terms of constructible features. For example, it is not necessary to pay attention to undercuts. If, however, a silicon tombac prototype is to become a silicon tombac pressure casting from a rapid Si-tombac prototype, the 3D-data construction will be simulated in consultation with our designers. This makes it possible to obtain a mold which is as simple and cost-effective as possible in the series and to minimize or completely eliminate mechanical rework operations.

If a prototype from rapid Sitomb was already made before the series cast of silicon tombac starts, this results in advantages with regard to the speed and the quality during the transfer from the prototype to serial application.

Alloy development

In order to be able to adjust properties similar to high pressure die-cast silicon tombac, we have developed a prototype alloy. This prototype alloy compensatesthe disadvantages of the slow solidification of the prototype process in the form of a imitated solid solution strengthening with Si in the metallic lattice.

Nevertheless, it remains to be noted that rapid Sitomb has lower hardness and strength values than silicon tombac from the die casting process. However, rapid Sitomb is more ductile.

Ordering guidance

Click on “UPLOAD” at the top of the menu.

Upload your 3D model. Please arrange your desired 3D model in .stp format.

You can either drag and drop the model into the gray window or use the UPLOAD MODEL button to insert the model directly from your folder structure.

Upload your model exactly in the dimensions you need (100% measurements). We calculate the scaling based on the consideration of shrinkage.

Give our software about 20-30 seconds to analyze your model. You will immediately receive a price (including VAT) for your individual request.

Minor problems of the 3d-data will be fixed immediately.

Select the desired quantity and then click on “Add to Cart”.

Then click “View cart”.

Check your order and click “Proceed to checkout”.

Enter your data (especially also the company name) and specify the payment methods. Please check your order again and then close the purchase.

You will receive your rapid Sitomb prototypes within 10 days.